Prostate stapling device

Abstract

The present invention relates to a prostate stapling device, comprising an implantation mechanism and an operating mechanism. The implantation mechanism comprises a puncture needle assembly and a stapling suture assembly. The operating mechanism comprises: a first driving assembly, which comprises a first electric motor, and a first gear and a first rack, which engage with each other; and an actuating assembly, which comprises a puncture needle actuating member, a stapling suture actuating member, and a first elastic member. When needle insertion is performed, the first rack provides a linear driving force to trigger the actuating assembly to move in a first direction from an initial position to a needle insertion completion position, so as to perform needle insertion; and when needle withdrawal is performed, the first rack drives the puncture needle actuating member to drive the puncture needle assembly to move in a second direction to complete needle withdrawal, and then, the stapling suture actuating member moves in the second direction under an elastic force of the first elastic member to tighten the stapling suture assembly, thereby implementing suture withdrawal. The stapling device of the present invention is easier to operate, can improve stapling efficiency and reduce vibration and noise generated during a stapling process, and has a long service life.

Description

Prostatic staple device TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a prostatic staple device. BACKGROUND

[0002] Benign prostatic hyperplasia is a common urological disease in men, which is prone to occur in elderly men. The main clinical manifestations are progressive dysuria, frequent urination, and even urinary retention, which seriously affects the quality of life of elderly men.

[0003] At present, minimally invasive treatment methods such as transurethral resection and enucleation, various laser surgeries, etc. are dominant. The means is to reduce or remove the hyperplastic prostate gland within the capsule to reduce the compression or mechanical obstruction of the hyperplastic gland to the prostatic urethra, thereby relieving urethral obstruction. Because these minimally invasive treatment methods destroy the tissue structure of the prostate, there are many surgical complications.

[0004] As a minimally invasive surgical method, prostatic staple implantation can implant staples in the obstructed prostatic urethra to tighten the enlarged prostate tissue and relieve the compression on the urethra, thereby restoring smooth urination. Compared with traditional resection and enucleation, prostatic staple implantation not only has less trauma and high safety, but also retains the integrity of the prostate function, avoiding complications that may be caused by traditional surgery.

[0005] CN114980823A provides a device for preventing instrument deployment failure, which provides mechanical driving force through handle trigger assembly, drive gear and cam components to drive needle sliding member to move needle joint assembly and suture needle assembly to achieve needle, needle retraction and line collection. In this scheme, because the single rotation angle of the cam is small, the driving stroke is limited, so the user can only trigger one action for each operation of the handle trigger assembly, that is, the user needs to manually operate the handle trigger assembly five times to complete the entire process of the staple, corresponding to five steps: unlocking, needle, needle retraction, line collection and clamping and cutting. The operation is complicated, and the overall device is light and the transmission components such as drive gear and cam are mostly injection molded parts and have special shapes. The gear transmission is easy to wear or damage, thereby affecting the service life of the device. SUMMARY

[0006] Based on the above-mentioned defects in the prior art, the purpose of the present application is to provide a prostatic staple device, which directly provides linear driving force through the cooperation of the first motor, the first gear and the first rack, to trigger the execution of needle, needle retraction and line collection. The operation is more convenient, the efficiency of the staple can be improved, the vibration and noise generated during the staple process can be reduced, and the service life is long.

[0007] To this end, the present application provides the following technical solutions.

[0008] The present application provides a prostate staple device, which comprises an implanting mechanism and an operating mechanism, the implanting mechanism comprises a puncture needle assembly and a staple line assembly, and the operating mechanism comprises:

[0009] a first driving assembly comprising a first motor, a first gear and a first rack;

[0010] an actuating assembly comprising a puncture needle actuating member, a staple line actuating member and a first elastic member, the first elastic member being connected with the puncture needle actuating member and the staple line actuating member respectively, the puncture needle actuating member being in transmission connection with the puncture needle assembly, and the staple line actuating member being in transmission connection with the staple line assembly;

[0011] When the puncture needle is performed, the first rack provides a linear driving force to trigger the actuating assembly to move from an initial position to a puncture needle completion position in a first direction, and the puncture needle actuating member drives the puncture needle assembly to move to perform the puncture needle on the prostate;

[0012] When the puncture needle is performed, the first rack drives the puncture needle actuating member to drive the puncture needle assembly to move in a second direction to complete the puncture needle, and the first elastic member is energized due to the pulling of the puncture needle actuating member, and then the staple line actuating member moves in the second direction under the elastic force of the first elastic member to tighten the staple line assembly, so as to realize the collection of the needle; the first direction and the second direction are opposite.

[0013] Optionally, the operating mechanism further comprises a first trigger switch for triggering the first driving assembly to operate;

[0014] When the actuating assembly is in the initial state, the first trigger switch is operated once, which can trigger the prostate staple device to perform the puncture needle, and then the first trigger switch is operated again once, which can trigger the prostate staple device to perform the puncture needle and the collection of the needle.

[0015] Optionally, when the actuating assembly is in the initial state, the puncture needle actuating member is locked; when the puncture needle is performed, the first rack provides power to unlock the puncture needle actuating member;

[0016] and / or, when the puncture needle assembly completes the puncture needle or starts to perform the puncture needle, the staple line actuating member is locked; when the puncture needle is performed, the first rack provides power to unlock the staple line actuating member in the process of driving the puncture needle actuating member to move in the second direction, so that the staple line actuating member can move in the second direction under the elastic force of the first elastic member.

[0017] Optionally, the actuating assembly further comprises:

[0018] a first mounting member provided with a first guide rail, the puncture needle actuating member and the suture wire actuating member being movably connected to the first guide rail, respectively;

[0019] a second elastic member having one end connected to the first mounting member and the other end connected to the puncture needle actuating member;

[0020] wherein, when the actuating assembly is in an initial position, the puncture needle actuating member is locked and the second elastic member is in an energy storage state;

[0021] when the puncture needle is performed, the first rack provides power to unlock the puncture needle actuating member in the process of linear motion of the first rack, and then the puncture needle actuating member moves to a puncture needle completion position in a first direction under the elastic force of the second elastic member.

[0022] Optionally, the first mounting member is provided with a first locking structure and a second locking structure distributed in the first direction in sequence;

[0023] When the actuating assembly is in an initial state, the first locking structure can prevent the puncture needle actuating member from moving in the first direction; when the puncture needle is performed, the first rack provides power to unlock the first locking structure, so that the puncture needle actuating member can move in the first direction under the elastic force of the second elastic member;

[0024] When the puncture needle assembly completes the puncture needle or starts to collect the needle, the second locking structure can prevent the suture wire actuating member from moving in a second direction; when the needle is collected, the first rack provides power to unlock the second locking structure, so that the suture wire actuating member moves in the second direction under the elastic force of the first elastic member to realize the wire collection.

[0025] Optionally, the actuating assembly further comprises an unlocking member connected to the first rack, the unlocking member being provided with a first unlocking structure and a second unlocking structure distributed in the first direction in sequence;

[0026] When the puncture needle is performed, the first rack drives the unlocking member to move in the first direction, and the first locking structure is unlocked through the first unlocking structure;

[0027] When the needle is collected, the first rack drives the unlocking member to move in the second direction, and the second locking structure is unlocked through the second unlocking structure.

[0028] Optionally, the first locking structure comprises a first connecting arm, a first stop portion and a first extension arm, one end of the first connecting arm being a free end, and the first stop portion and the first extension arm being connected to the free end of the first connecting arm, respectively;

[0029] When the actuating assembly is in the initial state, the puncture needle actuating member is locked by the first stop portion in the first direction; when the needle is punctured, the first unlocking structure presses the first extension arm during the movement of the unlocking member in the first direction, so that the first connecting arm is deformed, and then the first stop portion is displaced to be unlocked;

[0030] And / or, the second locking structure comprises a second connecting arm, a second stop portion and a second extension arm, one end of the second connecting arm is a free end, and the second stop portion and the second extension arm are connected to the free end of the second connecting arm, respectively;

[0031] When the puncture needle assembly completes the needle puncture or starts the needle retraction, the staple line actuating member is locked by the second stop portion in the second direction; when the needle is retracted, the second unlocking structure is pressed during the movement of the unlocking member in the second direction, so that the second connecting arm is deformed, and then the second stop portion is displaced to be unlocked.

[0032] Optionally, the puncture needle actuating member, the staple line actuating member and the first elastic member are located on the side of the first mounting member facing the implant mechanism, and the first driving assembly and the unlocking member are located on the side of the first mounting member away from the implant mechanism;

[0033] The first mounting member is provided with a first through hole extending in the first direction, the puncture needle actuating member comprises a first protruding block, and the staple line actuating member comprises a second protruding block, the first protruding block is provided with a first protruding portion, and the second protruding block is provided with a second protruding portion;

[0034] The first protruding block is movably inserted into the first through hole, so that the first protruding portion can be locked by the first locking structure in the first direction;

[0035] The second protruding block is movably inserted into the first through hole, so that the second protruding portion can be locked by the second locking structure in the second direction.

[0036] Optionally, the puncture needle actuating member comprises a third protruding block, and the first rack is provided with a boss;

[0037] When the needle is retracted, the boss can abut against the third protruding block in the second direction, so that the first rack drives the puncture needle actuating member to move in the second direction to complete the needle retraction.

[0038] Optionally, the puncture needle actuating member, the staple line actuating member and the first elastic member are located on the side of the first mounting member facing the implant mechanism, and the first driving assembly and the unlocking member are located on the side of the first mounting member away from the implant mechanism;

[0039] The first mounting member is provided with a second through hole extending in the first direction, and the third protrusion is movably inserted into the second through hole and partially protrudes out of the second through hole;

[0040] And / or, when the actuating assembly is in the initial state, the boss and the third protrusion are spaced apart in the first direction to avoid the boss interfering with the movement of the puncture needle actuating member 221 in the first direction to the puncture completion position.

[0041] When the puncture is completed, the first rack drives the unlocking member to move to the unlocking member initial position, at which time the boss abuts against the third protrusion in the second direction, or a gap is left between the boss and the third protrusion.

[0042] Optionally, the first elastic member is a coil spring, the puncture needle actuating member is provided with a first mounting column, the ligation wire actuating member is provided with a clamping structure, one end of the first elastic member is wound around the first mounting column and the other end is clamped to the clamping structure.

[0043] And / or, the puncture needle actuating member and the ligation wire actuating member are sequentially distributed in the first direction, and when the actuating assembly is in the initial state, the ligation wire actuating member abuts against the puncture needle actuating member in the second direction under the action of the first elastic member, so that when the puncture is performed, the puncture needle actuating member can drive the ligation wire actuating member to move in the first direction.

[0044] And / or, the puncture needle actuating member is provided with a first insertion part, the puncture needle assembly includes a second insertion part, the first insertion part and the second insertion part are inserted to make the puncture needle actuating member and the puncture needle assembly in transmission connection.

[0045] And / or, the ligation wire actuating member is provided with a third insertion part, the ligation wire assembly includes a fourth insertion part, the third insertion part and the fourth insertion part are inserted to make the ligation wire actuating member and the ligation wire assembly in transmission connection.

[0046] And / or, the implanting mechanism and the operating mechanism are detachably connected.

[0047] Optionally, the puncture needle assembly includes a puncture needle and a distal end anchor, the distal end anchor is pre-placed in the puncture needle in a hollow structure, the ligation wire assembly includes a ligation wire, one end of the ligation wire is connected with the distal end anchor.

[0048] When the needle is performed, the puncture needle passes through the prostate along with the distal anchor; when the needle is retracted, the puncture needle is retracted away from the prostate, and the distal anchor remains on the distal side of the prostate; when the line is retracted, the distal anchor is stretched and presses the distal side of the prostate under the pulling of the suture line.

[0049] Optionally, the operating mechanism further comprises a second driving assembly comprising a second motor, a second gear and a second rack which are engaged with each other; the implanting mechanism further comprises a clamping and cutting assembly comprising a proximal anchor and a cutter;

[0050] When the clamping and cutting assembly is in the initial state, it is locked;

[0051] When the clamping and cutting is performed, the second rack provides power to unlock the clamping and cutting assembly, the proximal anchor clamps the suture line at the proximal end of the prostate, and then the cutter cuts the suture line, so that the proximal anchor remains and presses the proximal side of the prostate.

[0052] Optionally, the operating mechanism further comprises a trigger connected to the second rack;

[0053] When the clamping and cutting is performed, the second rack drives the trigger to move into contact with the clamping and cutting assembly, and under the pushing of the trigger, the clamping and cutting assembly is unlocked.

[0054] Optionally, the implanting mechanism comprises a second mounting member, and the clamping and cutting assembly comprises:

[0055] a proximal anchor actuator movably mounted on the second mounting member;

[0056] a cutter actuator movably mounted on the second mounting member;

[0057] a third elastic member having two ends respectively connected to the proximal anchor actuator and the cutter actuator;

[0058] a first locking member rotatably connected to the second mounting member;

[0059] a second locking member rotatably connected to the second mounting member;

[0060] When the clamping and cutting assembly is in the initial state, the first locking member locks the proximal anchor actuator, the second locking member locks the cutter actuator, and the third elastic member is in a tensioned state;

[0061] When clamping and cutting are performed, the trigger is moved under the drive of the second rack gear to push the first locking member to rotate and disengage from the proximal anchor actuator, and the first locking member rotates to push the second locking member to rotate and disengage from the cutter actuator, and then the proximal anchor actuator and the cutter actuator move towards each other under the rebound force of the third elastic member to achieve clamping and cutting.

[0062] Optionally, the operating mechanism further comprises a second trigger switch, when the prostate staple device is in the shutdown state, the second trigger switch is operated once to start the prostate staple device and the prostate staple device is automatically calibrated to the initial state.

[0063] Optionally, the operating mechanism further comprises a first trigger switch, the first trigger switch is operated once to trigger the second drive assembly to operate.

[0064] The operating mechanism further comprises a housing and a first trigger switch, the first trigger switch is used to trigger the first drive assembly and the second drive assembly to operate, and the housing comprises a handle.

[0065] The first trigger switch is arranged on the front side of the handle, and the second trigger switch is arranged on the rear side of the housing and above the handle.

[0066] And / or, the operating mechanism comprises a first trigger switch, which is used to trigger the first drive assembly and the second drive assembly to operate, the first trigger switch is a button switch, and the second trigger switch is a boat-shaped switch.

[0067] And / or, the second rack gear is movable in a third direction, and the third direction is perpendicular to the first direction.

[0068] And / or, the housing of the operating mechanism comprises a main body part and a handle connected together, the first drive assembly and the second motor are located in the main body part, the trigger of the operating mechanism comprises a trigger end and a detected end, the trigger end is located in the main body part and is used to unlock the clamping and cutting assembly, and the detected end is at least partially located in the handle and is used to connect a travel switch triggering element.

[0069] And / or, the implanting mechanism further comprises an indicator lamp, the indicator lamp is used to indicate the current state of the prostate staple device, and the current state comprises an automatic calibration completion state, a needle completion state, a needle and line retraction completion state and a clamping and cutting completion state.

[0070] The present application has the following technical effects:

[0071] The present application provides a prostate staple device, through the cooperation of the first motor, the first gear and the first rack, direct linear driving force is provided to trigger the execution of the needle, the needle and the line, through the first motor and the automatic control program, the intelligent staple operation is realized, and compared with the scheme of adopting the gear and the cam cooperation in the prior art CN114980823A, the linear motion stroke length of the first rack of the present scheme is adjustable, the needle and the line are triggered in sequence through the first motor driving the first rack to perform the motion in the second direction, the operation is more simple, and the staple efficiency can be improved. And the first driving assembly is simple and stable in structure, stable in operation, can reduce the vibration and noise generated in the staple process, and has long service life. BRIEF DESCRIPTION OF DRAWINGS

[0072] Fig. 1 is an exploded view of the structure of the prostate staple device of the present application;

[0073] Fig. 2 is a partial perspective view of the operating mechanism when the actuating assembly is in the initial state of the present application;

[0074] Fig. 3 is an assembly structure relationship diagram of the first driving assembly, the unlocking piece, the first optical coupling, the second optical coupling and the third optical coupling when the actuating assembly is in the initial state of the present application;

[0075] Fig. 4 is an assembly structure relationship diagram of the first driving assembly, the unlocking piece, the first optical coupling, the second optical coupling and the third optical coupling when the actuating assembly is in the initial state of the present application;

[0076] Fig. 5 is a perspective view of the actuating assembly when the actuating assembly is in the initial state of the present application;

[0077] Fig. 6 is a partial structure exploded view of the actuating assembly of the present application;

[0078] Fig. 7 is a partial perspective view of the actuating assembly when the actuating assembly is in the initial state of the present application;

[0079] Fig. 8 is an enlarged view of A in Fig. 7;

[0080] Fig. 9 is a partial structure enlarged view of the first mounting piece of the present application;

[0081] Fig. 10 is an assembly structure relationship diagram of the actuating assembly and the first driving assembly when the actuating assembly is in the initial state of the present application;

[0082] Fig. 11 is a partial structure front view of the operating mechanism when the actuating assembly is in the initial state of the present application;

[0083] Fig. 12 is a partial structure front view of the operating mechanism when the needle is completed of the present application;

[0084] Fig. 13 is a partial structure front view of the operating body when the wire slider is locked according to the present application;

[0085] Fig. 14 is a partial structure front view of the operating mechanism during the needle closing process according to the present application;

[0086] Fig. 15 is a partial structure front view of the operating mechanism when the actuating assembly is reset to the initial position and the unlocking member is not reset according to the present application;

[0087] Fig. 16 is an assembly structure relationship diagram of the second driving assembly, the trigger member, the travel switch trigger element, the first travel switch and the second travel switch when the clamping and cutting operations are not performed according to the present application;

[0088] Fig. 17 is a structure exploded view of the implanting mechanism according to the present application;

[0089] Fig. 18 is a partial structure schematic view of the implanting mechanism according to the present application;

[0090] Fig. 19 is a partial structure sectional view of the implanting mechanism according to the present application;

[0091] Fig. 20 is an enlarged view of B in Fig. 19;

[0092] Fig. 21 is a structure relationship diagram of the staple line and the distal anchor according to the implanting mechanism of the present application;

[0093] Fig. 22 is a structure relationship diagram of the proximal anchor and the cutting knife according to the implanting mechanism of the present application;

[0094] Fig. 23 is a partial structure exploded view of the clamping and cutting assembly according to the present application;

[0095] Fig. 24 is a three-dimensional structure schematic view of the prostate staple device according to the present application.

[0096] Explanation of Reference Signs

[0097] 100, prostate staple device;

[0098] 1, implanting mechanism;

[0099] 11, puncture needle assembly; 111, puncture needle connecting member; 1111, second insertion part; 112, puncture needle; 113, distal anchor; 114, puncture needle guide tube;

[0100] 12, staple line assembly; 121, staple line connecting member; 1211, fourth insertion part; 122, staple line; 123, staple line guide tube; 124, staple line support tube;

[0101] 13, clamping and cutting assembly; 131, proximal anchor; 132, cutter; 133, proximal anchor actuator; 1331, first clamping slot; 134, cutter actuator; 1341, second abutting portion; 135, third elastic member; 136, first locking member; 1361, first clamping protrusion; 1362, pushing portion; 137, second locking member; 1371, pushed portion; 1372, first abutting portion; 138, push rod; 139, pull rod;

[0102] 14, second mounting member; 15, gun head welding assembly; 16, outer cover; 17, base body; 18, locking knob;

[0103] 2, operating mechanism;

[0104] 21, first driving assembly; 211, first motor; 2111, first output shaft; 212, first gear; 213, first rack; 2131, boss; 214, second guide rail; 215, sliding block;

[0105] 22, actuating assembly;

[0106] 221, puncture needle actuator; 2211, first protrusion; 22111, first protruding portion; 221111, first abutting surface; 221112, second inclined surface; 2212, third protrusion; 2213, first mounting column; 2214, first insertion portion; 2215, hook portion; 2216, second clamping portion;

[0107] 222, staple line actuator; 2221, second protrusion; 22211, second protruding portion; 222111, second abutting surface; 222112, fourth inclined surface; 2222, clamping structure; 2223, third insertion portion; 2224, fourth protrusion; 22241, bent portion;

[0108] 223, first elastic member;

[0109] 224, first mounting member; 2241, first guide rail; 2242, first locking structure; 22421, first connecting arm; 22422, first stop portion; 224221, first stop surface; 224222, first inclined surface; 22423, first extension arm; 2243, second locking structure; 22431, second connecting arm; 22432, second stop portion; 224321, second stop surface; 224322, third inclined surface; 22433, second extension arm; 2244, first through hole; 2245, second through hole; 2246, second mounting column; 22471, first hollow portion; 22472, second hollow portion; 22473, connecting portion; 2248, groove; 2249, first clamping portion;

[0110] 225, second elastic member;

[0111] 226, unlocking piece; 2261, first unlocking structure; 2262, second unlocking structure; 2263, first blocking piece; 2264, second blocking piece;

[0112] 23, first trigger switch;

[0113] 24, second driving assembly; 241, second motor; 2411, second output shaft; 242, second gear; 243, second rack; 244, guide rod;

[0114] 25, trigger piece; 251, trigger end; 252, detected end;

[0115] 26, second trigger switch;

[0116] 27, housing; 271, handle; 272, main body part; 273, first shell; 274, second shell;

[0117] 281, travel switch trigger element; 282, first optical coupling; 283, second optical coupling; 284, third optical coupling; 285, first travel switch; 286, second travel switch;

[0118] 291, endoscope sheath; 292, battery; 293, indicator light. DETAILED DESCRIPTION

[0119] In order to make the technical solutions and beneficial effects of the present application more obvious and easy to understand, the following will be described in detail by listing specific embodiments. Unless otherwise defined, the technical and scientific terms used herein have the same meaning as the technical and scientific terms in the technical field to which the present application belongs.

[0120] In the description of the present application, unless otherwise explicitly defined, the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of the simplified description of the present application, and do not indicate that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, that is, cannot be understood as a limitation on the present application.

[0121] In the present application, the terms "first", "second" are used only for the purpose of clear description, and cannot be understood as relative importance of the indicated features or the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two; the meaning of "several" is at least one; except for the explicit definition.

[0122] In the present application, unless otherwise explicitly defined, the terms "mounting", "connecting", "connecting", "fixing", "setting" and the like should be understood broadly. For example, "connecting" can be fixed connection, detachable connection or integral molding; can be mechanical connection or electrical connection; can be direct connection or indirect connection through intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0123] In the present application, unless otherwise explicitly defined, the first feature "on", "over", "above" and "on", "below", "under", "below" or "under" the second feature can be direct contact between the first feature and the second feature, or indirect contact between the first feature and the second feature through intermediate medium. Moreover, the first feature "over", "above" and "on" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than the horizontal height of the second feature. The first feature "under", "below" and "under" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than the horizontal height of the second feature.

[0124] The prostate staple device of the present application will be described in detail below according to Figs. 1 to 24.

[0125] In the present embodiment, as shown in Figs. 1, 17, 18, 21 and 24, the prostate staple device 100 comprises an implanting mechanism 1 and an operating mechanism 2, the implanting mechanism 1 comprises a puncture needle assembly 11 and a staple line assembly 12, the puncture needle assembly 11 comprises a puncture needle 112 and a distal anchor 113, the distal anchor 113 is pre-placed in the puncture needle 112 in a hollow structure, and the staple line assembly 12 comprises a staple line 122, one end of the staple line 122 is connected with the distal anchor 113.

[0126] As shown in FIGS. 1-6, the operating mechanism 2 comprises a first driving assembly 21 and an actuating assembly 22, the first driving assembly 21 comprising a first motor 211, a first gear 212 coaxially connected with a first output shaft 2111 of the first motor 211 and a first rack 213 meshing with the first gear 212. The actuating assembly 22 comprises a puncture needle actuating member 221, a ligature wire actuating member 222 and a first elastic member 223 connected with the puncture needle actuating member 221 and the ligature wire actuating member 222 respectively, the puncture needle actuating member 221 being in transmission connection with the puncture needle assembly 11, and the ligature wire actuating member 222 being in transmission connection with the ligature wire assembly 12.

[0127] In use of the prostate ligature device 100, the implant end of the implanting mechanism 1 is inserted into the proximal side of the prostate ligature, and then the user controls the implanting mechanism 1 to perform the needle insertion, needle retraction and wire retraction by operating the operating mechanism 2.

[0128] Specifically, as shown in FIGS. 2, 3, 5, 11 and 12, when the needle insertion is performed, the first motor 211 is rotated forward, under the meshing transmission of the first gear 212 and the first rack 213, the first gear 212 drives the first rack 213 to perform a linear motion, and through the linear driving force provided by the first rack 213, the actuating assembly 22 is triggered to move from the initial position to the needle insertion completion position along a first direction a, wherein the puncture needle actuating member 221 drives the puncture needle assembly 11 to move, and the ligature wire actuating member 222 drives the ligature wire assembly 12 to move, so as to realize the needle insertion into the prostate, at this time, the puncture needle 112 passes through the prostate together with the distal anchor 113, i.e. the distal anchor 113 and the ligature wire 122 are transported to the distal side of the prostate by the puncture needle 112.

[0129] As shown in FIGS. 2, 3, 5, 12 and 14, when the needle retraction is performed, the first motor 211 is reversed, under the meshing transmission of the first gear 212 and the first rack 213, the first gear 212 drives the first rack 213 to perform a reverse linear motion, the first rack 213 drives the puncture needle actuating member 221 to drive the puncture needle assembly 11 to move along a second direction b, at this time, the puncture needle 112 is retracted from the prostate, the distal anchor 113 remains on the distal side of the prostate, one end of the ligature wire 122 passes through the prostate to be connected with the distal anchor 113, in addition, since the first elastic member 223 is energized by being pulled by the puncture needle actuating member 221, after the puncture needle 112 is retracted from the prostate, as shown in FIGS. 14 and 15, the ligature wire actuating member 222 moves along the second direction b under the elastic force of the first elastic member 223 to tighten the ligature wire assembly 12, realizing the wire retraction, by tightening the ligature wire 122 to make the distal end stretch and press the distal side of the prostate. Wherein the first direction a and the second direction b are opposite.

[0130] By adopting the technical scheme, the prostate staple device 100 is configured with the first driving assembly 21, which directly provides linear driving force through cooperation of the first motor 211, the first gear 212 and the first rack 213 to trigger execution of the needle puncture, needle retraction and thread retraction, realizes intelligent staple operation, and compared with the scheme of cooperation of the gear and the cam in the prior art CN114980823A, the linear motion stroke length of the first rack 213 in the scheme is adjustable, and the needle retraction and thread retraction can be triggered in sequence by driving the first rack 213 to perform motion in the second direction b once by the first motor 211, the operation is more convenient, and the staple efficiency can be improved. In addition, the first driving assembly 21 runs stably and has stable structure, compared with the scheme of cooperation of the gear and the cam in the prior art, vibration and noise generated in the staple process can be reduced, damage is not easy to occur, and the service life is long.

[0131] It should be understood that herein, "proximal" and "distal" are relative positions, wherein the proximal end of the prostate refers to the part of the prostate tissue close to the urethra, and the distal end of the prostate refers to the part of the prostate tissue far away.

[0132] It should be understood that in the normal use state of the prostate staple device 100, the front end of the prostate staple device 100 faces the patient, herein, the direction from back to front represents "first direction a", the direction from front to back represents "second direction b", and the direction from bottom to top represents "third direction c". The "first direction a" and "second direction b" mentioned herein are based on the indications in FIGS. 1, 2, 3, 9 and 11, and the "third direction c" is based on the indications in FIGS. 1, 2 and 11.

[0133] It should be understood that herein, "needle retraction" refers to retracting the puncture needle 112 from the prostate, and the thread retraction can be performed after the puncture needle 112 is retracted from the prostate.

[0134] In an embodiment, as shown in FIGS. 1 and 24, the operating mechanism 2 further comprises a first trigger switch 23 for triggering the first driving assembly 21 to operate. When the actuating assembly 22 is in the initial state, the first trigger switch 23 is operated once to trigger the prostate staple device 100 to perform needle puncture, and then the first trigger switch 23 is operated again to trigger the prostate staple device 100 to perform needle retraction and thread retraction. In the scheme, the user only needs to operate the first trigger switch 23 twice to control the prostate staple device 100 to perform needle puncture, needle retraction and thread retraction, compared with the scheme of manual operation three times to realize needle puncture, needle retraction and thread retraction in the prior art CN114980823A, the scheme saves one operation, reduces the difficulty and operation time of staple operation, and improves the staple efficiency.

[0135] In one embodiment, when the actuating assembly 22 is in the initial state, the puncture needle actuating member 221 is locked. When the puncture needle is performed, the first rack 213 provides power to unlock the puncture needle actuating member 221, so that the puncture needle actuating member 221 can be triggered to move in the first direction a.

[0136] In one embodiment, when the puncture needle assembly 11 completes the puncture needle, the second locking structure 2243 does not lock the staple line actuating member 222, and when the needle is started to be retracted, the first motor 211 is reversed, and under the meshing transmission of the first gear 212 and the first rack 213, the first gear 212 drives the first rack 213 to move reversely and linearly, and the first rack 213 drives the needle sliding member 221 and the unlocking element 226 to move in the second direction b. After the staple line actuating member 222 moves slightly in the second direction b, it is locked by the second locking structure 2243, that is, in the initial stage of needle retraction, the staple line actuating member 222 is locked. Of course, the staple line actuating member 222 can also be locked at the same time when the puncture needle is completed. This scheme has strict requirements on the assembly tolerance of parts. Therefore, it is preferred that the staple line actuating member 222 is locked in the initial stage of needle retraction. Hereinafter, for the convenience of elaboration, the “in the initial stage of needle retraction, the staple line actuating member 222 is locked” is taken as an example for specific elaboration.

[0137] Then, the first rack 213 drives the unlocking element 226 to move in the second direction b to the initial position of the unlocking element. As shown in FIGS. 2, 12 and 14, when the puncture needle assembly 11 performs needle retraction, the first motor 211 drives the first rack 213 to move linearly, the first rack 213 drives the puncture needle actuating member 221 to move in the second direction b, the puncture needle actuating member 221 drives the puncture needle assembly 11 to move in the second direction b, so that the puncture needle 112 is retracted from the prostate, and since the staple line actuating member 222 is locked, the staple line actuating member 222 is fixed during the retraction of the puncture needle 112 from the prostate. After the puncture needle 112 is retracted from the prostate, and during the continuous linear movement of the first rack 213, the puncture needle actuating member 221 continues to move in the second direction b to drive the puncture needle assembly 11 to reset to its initial position, and the first rack 213 provides power to unlock the staple line actuating member 222. After the staple line actuating member 222 is unlocked, as shown in FIGS. 14 and 15, the staple line actuating member 222 can move in the second direction b under the elastic force of the first elastic member 223, achieving needle retraction and line retraction.

[0138] In an embodiment, as shown in FIG. 5, the actuating assembly 22 further comprises a first mounting member 224 and a second elastic member 225, the first mounting member 224 is provided with a first guide rail 2241, the puncture needle actuating member 221 and the staple line actuating member 222 are movably connected to the first guide rail 2241 respectively, one end of the second elastic member 225 is connected to the first mounting member 224, and the other end is connected to the puncture needle actuating member 221. As shown in FIG. 2 and FIG. 11, when the actuating assembly 22 is in the initial position, the puncture needle actuating member 221 is locked and the second elastic member 225 is in the energy storage state. When the puncture needle is performed, the first rack 213 provides power to unlock the puncture needle actuating member 221 during the linear motion of the first rack 213, after the puncture needle actuating member 221 is unlocked, the second elastic member 225 can release the elastic force, and the puncture needle actuating member 221 moves to the puncture needle completion position along the first direction a under the elastic force of the second elastic member 225.

[0139] In an embodiment, as shown in FIG. 5, the second elastic member 225 is a tension spring, the first mounting member 224 is provided with a second mounting column 2246, the puncture needle actuating member 221 is provided with a hook portion 2215, the hook portion 2215 and the second mounting column 2246 are distributed along the first direction a, one end of the second elastic member 225 is hung on the second mounting column 2246, and the other end is hung on the hook portion 2215. When the actuating assembly 22 is in the initial position, the second elastic member 225 is stretched, and when the puncture needle actuating member 221 is unlocked, the second elastic member 225 rebounds to pull the puncture needle actuating member 221 to move along the first direction a.

[0140] In an embodiment, as shown in FIG. 5 and FIG. 6, the first elastic member 223 is a coil spring, the puncture needle actuating member 221 is provided with a first mounting column 2213, the staple line actuating member 222 is provided with a clamping structure 2222, one end of the first elastic member 223 is wound around the first mounting column 2213, and the other end is clamped to the clamping structure 2222. As shown in FIG. 14, when the puncture needle actuating member 221 moves along the second direction b and the staple line actuating member 222 is locked, the first elastic member 223 is stretched, as shown in FIG. 15, when the staple line actuating member 222 is unlocked, the first elastic member 223 retracts to drive the staple line actuating member 222 to move along the second direction b.

[0141] In an embodiment, as shown in FIG. 5 to FIG. 8, the first mounting member 224 is provided with a first locking structure 2242 and a second locking structure 2243 which are distributed along the first direction a in sequence.

[0142] When the actuating assembly 22 is in the initial state, the first locking structure 2242 is at least partially located on the travel path of the puncture needle actuating member 221 in the first direction a, so that the first locking structure 2242 can prevent the puncture needle actuating member 221 from moving in the first direction a, achieving locking. When the puncture needle is performed, the first rack 213 provides power to move the first locking structure 2242 away from the travel path of the puncture needle actuating member 221 in the first direction a, and the first locking structure 2242 is unlocked to allow the puncture needle actuating member 221 to move in the first direction a under the elastic force of the second elastic member 225.

[0143] During the puncture needle operation, the tourniquet actuating member 222 moves along with the puncture needle actuating member 221 in the first direction a, and when the puncture needle assembly 11 completes the puncture needle operation, both the puncture needle actuating member 221 and the tourniquet actuating member 222 stop moving. At this time, the second locking structure 2243 is at least partially located on the travel path of the tourniquet actuating member 222 in the second direction b, so that when the needle collection is started, the tourniquet actuating member 222 is locked by the second locking structure 2243 after a slight movement in the second direction b, and the tourniquet actuating member 222 cannot continue to move along with the puncture needle actuating member 221 in the second direction b, so that the needle collection can be performed first, and the puncture needle 112 is collected from the prostate. When the puncture needle 112 is collected from the prostate, the first rack 213 provides power to unlock the second locking structure 2243 by moving away, so that the tourniquet actuating member 222 moves in the second direction b under the elastic force of the first elastic member 223 to achieve the tourniquet collection. Preferably, the gap between the second locking structure 2243 and the locked part of the tourniquet actuating member 222 is configured to be 1 mm - 2 mm when the puncture needle assembly 11 completes the puncture needle operation, which reserves the assembly process gap, and also can lock the tourniquet actuating member 222 at the moment of starting the needle collection.

[0144] In an embodiment, as shown in FIGS. 3, 8 and 10, the actuating assembly 22 further comprises an unlocking member 226 connected to the first rack 213, and the unlocking member 226 is provided with a first unlocking structure 2261 and a second unlocking structure 2262 distributed in the first direction a in sequence. When the puncture needle is performed, the first rack 213 drives the unlocking member 226 to move in the first direction a, and the first unlocking structure 2261 is driven to move to unlock the first locking structure 2242. When the needle collection is performed, the first rack 213 drives the unlocking member 226 to move in the second direction b, and the second unlocking structure 2262 is driven to move to unlock the second locking structure 2243. In this scheme, the unlocking member 226 is separately provided, which can reduce the processing difficulty of the first rack 213 and save the processing cost compared with directly forming the first unlocking structure 2261 and the second unlocking structure 2262 on the first rack 213.

[0145] Further, as shown in FIGS. 6-10, the first locking structure 2242 includes a first connecting arm 22421, a first stopper 22422 and a first extension arm 22423, one end of the first connecting arm 22421 is a free end and the other end is fixed on the body of the first mounting member 224, the first stopper 22422 and the first extension arm 22423 are connected to the free end of the first connecting arm 22421 respectively. When the actuating assembly 22 is in the initial state, the puncture needle actuating member 221 is at least partially locked against the first stopper 22422 in the first direction a, and the first extension arm 22423 is at least partially located on the travel path of the first unlocking structure 2261 in the first direction a. It should be understood that at this time, the force exerted by the second elastic member 225 on the puncture needle actuating member 221 is not enough to make the puncture needle actuating member 221 overcome the blocking force of the first stopper 22422, thereby ensuring the stability of the lock. When the needle is punctured, during the movement of the unlocking member 226 in the first direction a, the first unlocking structure 2261 moves to contact and press the first extension arm 22423, so that the first connecting arm 22421 deforms, thereby making the first stopper 22422 displace and disengage from the puncture needle actuating member 221, achieving unlocking. Further, the puncture needle actuating member 221 is provided with a first protrusion 22111, which is locked against the first stopper 22422 in the first direction a.

[0146] The second locking structure 2243 comprises a second connecting arm 22431, a second stop portion 22432 and a second extending arm 22433, one end of the second connecting arm 22431 is a free end and the other end is fixed to the body of the first mounting member 224, and the second stop portion 22432 and the second extending arm 22433 are connected to the free end of the second connecting arm 22431 respectively. As shown in FIG. 13 and FIG. 14, in the initial stage of the take-up process, the binder line actuator 222 is at least partially locked against the second stop portion 22432 in the second direction b, and the second extending arm 22433 is at least partially located on the travel route of the second unlocking structure 2262 in the second direction b. It should be understood that at this time, the force exerted by the first elastic member 223 on the binder line actuator 222 is insufficient to enable the binder line actuator 222 to overcome the blocking force of the second stop portion 22432. As shown in FIG. 8, FIG. 10, FIG. 14 and FIG. 15, in the process of continuing to take up the needle, in the process of moving the unlocking member 226 along with the first rack 213 in the second direction b, the second unlocking structure 2262 moves to contact and press the second extending arm 22433, so that the second connecting arm 22431 deforms, and then the second stop portion 22432 is displaced to disengage from the binder line actuator 222, thereby achieving unlocking, and the binder line actuator 222 moves in the second direction b to take up the line. Further, as shown in FIG. 8 and FIG. 14, the binder line actuator 222 is provided with a second protruding portion 22211, and the second protruding portion 22211 is locked against the second stop portion 22432 in the second direction b.

[0147] Further, as shown in FIG. 6 to FIG. 9, the first mounting member 224 is provided with a first hollow portion 22471 and a second hollow portion 22472 which are sequentially distributed in the first direction a, and the first hollow portion 22471 and the second hollow portion 22472 are connected by a connecting portion 22473, the first connecting arm 22421 is located in the first hollow portion 22471 and the fixed end thereof is connected to the connecting portion 22473, and the first extending arm 22423 extends towards the unlocking member 226 and extends out of the first hollow portion 22471; the second connecting arm 22431 is located in the second hollow portion 22472 and the fixed end thereof is connected to the connecting portion 22473, and the second extending arm 22433 extends towards the unlocking member 226 and extends out of the second hollow portion 22472. In this scheme, the first locking structure 2242 and the second locking structure 2243 are arranged compactly, and are both connected to the body of the first mounting member 224 through the connecting portion 22473, which is simple in structure and convenient for processing.

[0148] In an embodiment, as shown in FIG. 5 and FIG. 23, when the actuating mechanism 22 is moved to the full needle position, the wire slider 222 abuts against the second mounting post 2246, and the actuating mechanism 22 is stopped, that is, the second mounting post 2246 also serves to limit the movement of the actuating mechanism 22 in the first direction a. When the actuating mechanism 22 is in the full needle position, the second protruding portion 22211 of the staple wire actuating member 222 and the second stop portion 22432 of the second locking structure 2243 are sequentially distributed along the second direction b with a spacing of 1-2 mm therebetween.

[0149] In an embodiment, as shown in FIG. 5 and FIG. 8, the first locking structure 2242 and the second locking structure 2243 are located above the first guide rail 2241, the first protruding portion 22111 is arranged on the top wall of the puncture needle actuating member 221, and the second protruding portion 22211 is arranged on the top wall of the staple wire actuating member 222. The first stop portion 22422 and the first protruding portion 22111 are oppositely arranged in the first direction a, and the second stop portion 22432 and the second protruding portion 22211 are oppositely arranged in the second direction b. The first locking structure 2242 and the second locking structure 2243 are both arranged in axial symmetry, which is beneficial to simplify the structural design.

[0150] Further, as shown in FIG. 8 and FIG. 9, the first stop portion 22422 includes a first stop surface 224221 and a first inclined surface 224222, and the first protruding portion 22111 includes a first abutting surface 221111 and a second inclined surface 221112. The first stop surface 224221 and the first abutting surface 221111 are both perpendicular to the first direction a, and the first inclined surface 224222 extends in a direction away from the puncture needle actuating member 221 in the first direction a. When the actuating assembly 22 is in the initial state, the first stop surface 224221 and the first abutting surface 221111 stably abut, and the second protruding portion 22211 is located between the first locking structure 2242 and the second locking structure 2243, and the second protruding portion 22211 does not interfere with the first locking structure 2242. When the needle is completed, the first protruding portion 22111 is located between the first locking structure 2242 and the second locking structure 2243, so that when the needle is retracted, the puncture needle actuating member 221 moves along the second direction b to abut the second inclined surface 221112 against the first inclined surface 224222. Since the two are inclined surfaces, under the drive of the first rack 213, the puncture needle actuating member 221 can smoothly overcome the obstruction of the first inclined surface 224222, and the first protruding portion 22111 smoothly passes through the first stop portion 22422 and is then locked by the first stop portion 22422.

[0151] The second stop portion 22432 comprises a second stop surface 224321 and a third inclined surface 224322, and the second protruding portion 22211 comprises a second abutting surface 222111 and a fourth inclined surface 222112, the second stop surface 224321 and the second abutting surface 222111 are both perpendicular to the second direction b, and the third inclined surface 224322 extends in a direction away from the bundle wire actuating member 222 in the second direction b. When the lancet is operated, the bundle wire actuating member 222 moves along the first direction a to the fourth inclined surface 222112 abutting against the third inclined surface 224322 along with the puncture needle actuating member 221, and due to the inclined surface cooperation, the rebounding force of the second elastic member 225 is sufficient to drive the bundle wire actuating member 222 to overcome the resistance of the third inclined surface 224322, the second protruding portion 22211 smoothly passes through the second stop portion 22432, continues to move along the first direction a, and when the actuating assembly 22 reaches the lancet completion position, the first protruding portion 22111 is located between the first locking structure 2242 and the second locking structure 2243, and the first protruding portion 22111 does not interfere with the second locking structure 2243.

[0152] Further, as shown in FIG. 8, the number of the first protruding portions 22111 is two, and the number of the second protruding portions 22211 is two, the two first protruding portions 22111 are sequentially distributed along the first direction a, and the two second protruding portions 22211 are sequentially distributed along the second direction b, so as to ensure the stability of the corresponding locking function. It should be understood that in the process of the first unlocking structure 2261 forcing the first connecting arm 22421 to deform, the two first protruding portions 22111 can smoothly pass through the first stop portion 22422; in the process of the second unlocking structure 2262 forcing the second connecting arm 22431 to deform, the two second protruding portions 22211 can smoothly pass through the second stop portion 22432.

[0153] In an embodiment, as shown in FIG. 1, FIG. 5 and FIG. 10, the puncture needle actuating member 221, the suture wire actuating member 222 and the first elastic member 223 are located on the side of the first mounting member 224 facing the implanting mechanism 1, and the first driving assembly 21 and the unlocking member 226 are located on the side of the first mounting member 224 facing away from the implanting mechanism 1. As shown in FIG. 7 and FIG. 8, the first mounting member 224 is provided with a first through hole 2244 extending along the first direction a, the puncture needle actuating member 221 comprises a first protruding block 2211, the suture wire actuating member 222 comprises a second protruding block 2221, the first protruding block 2211 is provided with a first protruding part 22111, and the second protruding block 2221 is provided with a second protruding part 22211. The first protruding block 2211 is movably inserted into the first through hole 2244, so that the first protruding part 22111 can be locked by abutting against the first locking structure 2242 along the first direction a. The second protruding block 2221 is movably inserted into the first through hole 2244, so that the second protruding part 22211 can be locked by abutting against the second locking structure 2243 along the second direction b. In this scheme, the components of the actuating assembly 22 are arranged reasonably and compactly, which is conducive to the miniaturization design of the operating mechanism 2.

[0154] Further, in order to facilitate the thin design of the first mounting member 224, as shown in FIG. 7 and FIG. 8, the side of the first mounting member 224 facing away from the implanting mechanism 1 is provided with a groove 2248 located above the first through hole 2244 and communicating with the first through hole 2244, the first connecting arm 22421 and the second connecting arm 22431 are located above the groove 2248, the first stop 22422 and the second stop 22432 extend into the groove 2248, the first protruding part 22111 and the second protruding part 22211 are located in the groove 2248, and the groove 2248 is used to accommodate part of the structure of the actuating assembly 22, and the first protruding block 2211 and the second protruding block 2221 abut against the groove wall of the groove 2248 respectively, which can prevent the puncture needle actuating member 221 and the suture wire actuating member 222 from being separated from the first guide rail 2241.

[0155] In an embodiment, as shown in FIG. 3 and FIG. 7, the puncture needle actuating member 221 comprises a third protruding block 2212, and the first rack 213 is provided with a boss 2131. When the needle is retracted, the boss 2131 can abut against the third protruding block 2212 along the second direction b, so that the first rack 213 drives the puncture needle actuating member 221 to move along the second direction b to complete the needle retraction. Further, as shown in FIG. 6 and FIG. 7, the first mounting member 224 is provided with a second through hole 2245 extending along the first direction a, and the third protruding block 2212 is movably inserted into the second through hole 2245, and the third protruding block 2212 partially extends out of the second through hole 2245.

[0156] Further, as shown in FIG. 3 and FIG. 10, when the actuating assembly 22 is in the initial state, the boss 2131 and the third protrusion 2212 are spaced apart in the first direction a, so that when the actuating assembly 22 moves in the first direction a under the rebounding force of the second elastic member 225, the boss 2131 does not interfere with the movement of the third protrusion 2212, thereby preventing the puncture needle actuating member 221 from moving to the completed position of the puncture needle in the first direction a. In addition, when the puncture needle is completed, the first rack 213 drives the unlocking member 226 to move to the initial position of the unlocking member in the second direction b, at this time, the boss 2131 abuts against the third protrusion 2212 in the second direction b, or the boss 2131 and the third protrusion 2212 are spaced apart in the second direction b, for example, by 1-2 mm, to reserve a gap for assembly process, so that when the puncture needle needs to be retracted, the first rack 213 can immediately drive the puncture needle actuating member 221 to move in the second direction b, and at the same time, the unlocking member 226 in the initial position also moves in the second direction b, so that after the puncture needle 112 is retracted from the prostate, the staple line actuating member 222 is unlocked by the unlocking member 226.

[0157] In an embodiment, as shown in FIG. 5 to FIG. 7, a first guide rail 2241 is formed between the first through hole 2244 and the second through hole 2245, and the first protrusion 2211 and the third protrusion 2212 of the puncture needle actuating member 221 are respectively inserted into the first through hole 2244 and the second through hole 2245, so that the puncture needle actuating member 221 is in sliding fit with the first guide rail 2241, and the components of the actuating assembly 22 are arranged compactly, which is beneficial to the miniaturization design of the prostate staple device 100.

[0158] In an embodiment, as shown in FIG. 6 and FIG. 7, the staple line actuating member 222 is provided with a fourth protrusion 2224, the fourth protrusion 2224 is inserted into the second through hole 2245, and the outer end of the fourth protrusion 2224 is formed with a bent portion 22241, the bent portion 22241 abuts against the side wall of the first mounting member 224 away from the implantation mechanism 1, and as shown in FIG. 8, the upper part of the staple line actuating member 222 abuts against the side wall of the first mounting member 224 away from the implantation mechanism 1 through the second protrusion 22211, so that the staple line actuating member 222 is stably in sliding fit with the first guide rail 2241.

[0159] In an embodiment, as shown in FIG. 5 and FIG. 7, the first mounting member 224 is provided with a first clamping portion 2249, the bottom of the puncture needle actuating member 221 is provided with a second clamping portion 2216, the top of the puncture needle actuating member 221 abuts against the slot wall of the groove 2248 through the first protrusion 2211, and the bottom of the puncture needle actuating member 221 is movably clamped with the first clamping portion 2249 through the second clamping portion 2216, so that the puncture needle actuating member 221 is stably in sliding fit with the first guide rail 2241.

[0160] In an embodiment, as shown in FIG. 5, the puncture needle actuating member 221 and the staple line actuating member 222 are sequentially arranged along the first direction a, and when the actuating assembly 22 is in the initial state, the staple line actuating member 222 abuts against the puncture needle actuating member 221 along the second direction b under the action of the first elastic member 223, so that when the puncture needle is actuated, the puncture needle actuating member 221 can drive the staple line actuating member 222 to move along the first direction a.

[0161] In an embodiment, as shown in FIG. 5 and FIG. 18, the puncture needle actuating member 221 is provided with a first plug-in part 2214, the puncture needle assembly 11 includes a second plug-in part 1111, the first plug-in part 2214 and the second plug-in part 1111 are plugged in to drive connect the puncture needle actuating member 221 with the puncture needle assembly 11. The staple line actuating member 222 is provided with a third plug-in part 2223, the staple line assembly 12 includes a fourth plug-in part 1211, the third plug-in part 2223 and the fourth plug-in part 1211 are plugged in to drive connect the staple line actuating member 222 with the staple line assembly 12. In a specific embodiment, the first plug-in part 2214 and the third plug-in part 2223 are both clamping groove structures, and the second plug-in part 1111 and the fourth plug-in part 1211 are both clamping protrusions, and the clamping groove and the clamping protrusion are plugged in to realize detachable assembly.

[0162] In an embodiment, the implanting mechanism 1 and the operating mechanism 2 are detachably connected, so that for different patients, new implanting mechanisms 1 can be replaced to ensure hygiene, of course, for the same patient, the implanting mechanism 1 can be replaced after being used for several times, or a new implanting mechanism 1 can be used each time.

[0163] In an embodiment, as shown in FIG. 3 and FIG. 4, the first driving assembly 21 includes a second guide rail 214 and a sliding block 215 in sliding fit, the operating mechanism 2 further includes a housing 27, the second guide rail 214 is mounted to the inner wall of the housing 27, and the first rack 213 and the unlocking member 226 are respectively connected to the sliding block 215.

[0164] In an embodiment, the first gear 212 is provided with a first mounting hole (not shown in the figure), as shown in FIG. 4, the first output shaft 2111 is mounted to the first mounting hole, and the cross section of the first output shaft 2111 is in the shape of D, and the cross section of the first mounting hole is also in the shape of D, and the shape of D can prevent misalignment between the first output shaft 2111 and the first mounting hole.

[0165] In one embodiment, the unlocking member 226 has five state positions during one complete use of the prostate staple device 100: the initial position of the locking member, the first unlocking member position, the first limit position, the second unlocking member position and the second limit position. As shown in FIGS. 10 and 11, when the actuating assembly 22 is in the initial state, the unlocking member 226 stops at the initial position of the unlocking member. When the needle is being inserted, the first rack 213 drives the unlocking member 226 to move in the first direction a to the position of unlocking the needle actuating member 221, at this time, the unlocking member 226 is in the first unlocking member position, the unlocking member 226 continues to move to make the needle actuating member 221 unlock, and then continues to move in the first direction a to stop at the first limit position. As shown in FIG. 12, after the needle actuating member 221 is unlocked, the actuating mechanism 22 moves to the full needle insertion position under the pulling of the second elastic member 225. After the needle insertion is completed, the unlocking member 226 returns to the initial position of the unlocking member and stops. As shown in FIGS. 13 to 15, when the needle and the thread are being retracted, the first rack 213 drives the unlocking member 226 and the needle sliding member 221 to move in the second direction b, when the unlocking member 226 moves to the second unlocking position, the unlocking member 226 unlocks the second unlocking structure 2243, so that the staple thread actuating member 222 moves in the second direction b to abut against the needle sliding member 221 under the elastic force of the first elastic member 223, and then, under the continuous driving of the first driving assembly 21, the needle actuating member 221 and the staple thread actuating member 222 return to the initial position of the actuating assembly 22, as shown in FIG. 15, the unlocking member 226 moves in the second direction b to the second limit position along with the first rack 213. After the needle and the thread are retracted, as shown in FIG. 11, the unlocking member 226 moves in the first direction a to return to the initial position of the unlocking member.

[0166] As shown in FIG. 3, the unlocking member 226 is provided with the first blocking piece 2263 and the second blocking piece 2264 which are arranged at intervals in the first direction a, and the operating mechanism 2 includes the first optical coupler 282, the second optical coupler 283 and the third optical coupler 284 which are arranged at intervals in the first direction a. When the unlocking member 226 is in the initial position of the unlocking member, the second blocking piece 2264 and the second optical coupler 283 cooperate to obtain the position information of the unlocking member 226. When the unlocking member 226 is in the first limit position, the second blocking piece 2264 and the third optical coupler 284 cooperate to obtain the position information of the unlocking member 226. When the unlocking member 226 is in the second limit position, the first blocking piece 2263 and the first optical coupler 282 cooperate to obtain the position information of the unlocking member 226.

[0167] In an embodiment, as shown in FIG. 1, FIG. 2 and FIG. 16, the operating mechanism 2 further comprises a second driving assembly 24, the second driving assembly 24 comprising a second motor 241, a second gear 242 coaxially connected with a second output shaft 2411 of the second motor 241 and a second rack 243. As shown in FIG. 18, the implanting mechanism 1 further comprises a clamping and cutting assembly 13, as shown in FIG. 22, the clamping and cutting assembly 13 comprising a proximal anchor 131 and a cutter 132. When the clamping and cutting assembly 13 is in an initial state, the clamping and cutting assembly 13 is locked to prevent accidental triggering of the clamping and cutting operation. When the clamping and cutting is performed, the second motor 241 is turned on, the second rack 243 is powered by a linear movement to unlock the clamping and cutting assembly 13, after the clamping and cutting assembly 13 is unlocked, the proximal anchor 131 and the cutter 132 are movable, i.e. the proximal anchor 131 moves to clamp the suture 122 at a proximal end of the prostate, and then the cutter 132 moves to cut the suture 122, so that the proximal anchor 131 remains on the proximal side of the prostate, and under the tension of the suture 122 retained in the prostate, the proximal anchor 131 presses the proximal side of the prostate, the distal anchor 113 presses the distal side of the prostate, thereby reducing the prostate and expanding the urethra.

[0168] Further, as shown in FIG. 2 and FIG. 16, the operating mechanism 2 further comprises a trigger 25 connected to the second rack 243. When the clamping and cutting is performed, the second motor 241 is turned on, the second rack 243 drives the trigger 25 to move in a direction towards the clamping and cutting assembly 13, so that the trigger 25 is driven to move into contact with the clamping and cutting assembly 13, so that under the pushing of the trigger 25, the clamping and cutting assembly 13 is unlocked.

[0169] Further, as shown in FIG. 17 and FIG. 18, the implanting mechanism 1 comprises a second mounting 14, the clamping and cutting assembly 13 comprising a proximal anchor actuator 133, a cutter actuator 134, a third elastic member 135, a first locking member 136 and a second locking member 137, the proximal anchor actuator 133 and the cutter actuator 134 are movably mounted on the second mounting 14, the two ends of the third elastic member 135 are connected to the proximal anchor actuator 133 and the cutter actuator 134 respectively, and the first locking member 136 and the second locking member 137 are rotatably connected to the second mounting 14 respectively.

[0170] During the process of the needle puncture, the needle retraction and the thread retraction of the prostate staple device 100, the clamping and cutting assembly 13 is always in the initial state, in which the first locking member 136 locks the proximal anchor actuator 133, the second locking member 137 locks the cutter actuator 134, and the third elastic member 135 is in the tension state, and the first locking member 136 is at least partially located on the moving route of the trigger 25.

[0171] After the prostate staple device 100 completes the needle puncture, the needle retraction and the thread retraction, the clamping and cutting is started. As shown in FIG. 2 and FIG. 16, under the driving of the second driving assembly 24, the trigger 25 moves, and the trigger 25 moves to release the first locking member 136. Then, under the pushing of the trigger 25, as shown in FIG. 18, the first locking member 136 rotates to release the proximal anchor actuator 133. In this way, the proximal anchor actuator 133 is unlocked. At the same time, the first locking member 136 rotates to contact and push the second locking member 137 to rotate. The second locking member 137 rotates to release the cutter actuator 134. In this way, the cutter actuator 134 is unlocked. Then, under the rebound force of the third elastic member 135, the proximal anchor actuator 133 and the cutter actuator 134 move towards each other, respectively driving the proximal anchor 131 and the cutter 132 to move towards each other. The movement speed of the proximal anchor actuator 133 is less than that of the cutter actuator 134. In this way, the V-shaped notch of the proximal anchor 131 clamps the staple thread 122 first, and then the cutter 132 cuts the staple thread 122 to realize clamping and cutting.

[0172] Further, as shown in FIG. 18 and FIG. 23, the proximal anchor actuator 133, the second locking member 137 and the cutter actuator 134 are sequentially distributed along the first direction a. The bottom of the proximal anchor actuator 133 is provided with a first clamping groove 1331. The two sides of the first locking member 136 are respectively provided with a first clamping protrusion 1361 and a pushing part 1362. The two sides of the second locking member 137 are respectively provided with a pushed part 1371 and a first abutting part 1372. The cutter actuator 134 is provided with a second abutting part 1341.

[0173] When the clamping and cutting assembly 13 is in the initial state, the first clamping protrusion 1361 is clamped upwardly in the first clamping groove 1331 to limit the movement of the proximal anchor actuator 133 along the first direction a. The pushing part 1362 is located below the pushed part 1371 with a spacing therebetween. The first abutting part 1372 abuts upwardly and along the first direction a on the second abutting part 1341 to limit the movement of the proximal anchor actuator 133 and the cutter actuator 134 towards each other under the pulling force of the third elastic member 135.

[0174] When the trigger 25 moves upward, the trigger 25 pushes the first locking member 136 upward at the position of the pushing part 13621, so that the first locking member 136 rotates, and the first clamping protrusion 1361 rotates downward to disengage from the first clamping slot 1331, the proximal anchor actuating member 133 is unlocked, the pushing part 1362 rotates upward and pushes the pushing part 1371 upward, so that the second locking member 137 rotates, the first abutting part 1372 rotates downward to disengage from the second abutting part 1341, and the cutter actuating member 134 is unlocked.

[0175] In an embodiment, as shown in FIG. 2 and FIG. 16, the second rack 243 is movable along a third direction c, the third direction c is perpendicular to the first direction a, and the output shafts of the first motor 211 and the second motor 241 are perpendicular to each other.

[0176] In an embodiment, as shown in FIG. 2 and FIG. 24, the housing 27 of the operating mechanism 2 comprises a main body part 272 and a handle 271 connected to each other, the first driving assembly 21 and the second motor 241 are located in the main body part 272, the trigger 25 comprises a trigger end 251 and a detection end 252, the trigger end 251 is located in the main body part 272 and is used to unlock the clamping and cutting assembly 13, and the detection end 252 is at least partially located in the handle 271 and is used to connect the travel switch trigger element 281, the trigger 25 is accommodated in the space in the handle 271, and the structure is more compact.

[0177] In a complete use process of the prostate staple device 100, the trigger 25 has two positions: a trigger initial position and a trigger trigger unlocking position. As shown in FIG. 16, the operating mechanism 2 further comprises a first travel switch 285 and a second travel switch 286, when the clamping and cutting assembly 13 is in an initial state, the trigger 25 is in the trigger initial position, the first travel switch 285 cooperates with the travel switch trigger element 281 to obtain the position information of the trigger 25; when the trigger 25 moves to a position for unlocking the first locking member 136, the trigger 25 is in the trigger trigger unlocking position, and the second travel switch 286 cooperates with the travel switch trigger element 281 to obtain the position information of the trigger 25.

[0178] In an embodiment, as shown in FIG. 16, the second driving assembly 24 comprises a guide rod 244, the guide rod 244 is installed on the inner wall of the housing 27, and the second rack 243 is movably sleeved on the guide rod 244. There is a space between the guide rod 244 and the inner wall of the housing 27, and the second gear 242 is located in the space between the guide rod 244 and the inner wall of the housing 27, so as to fully utilize the transverse space in the housing 27.

[0179] The second gear 242 is provided with a second mounting hole (not shown in the figure), as shown in FIG. 16, the second output shaft 2411 is mounted in the second mounting hole, and the cross section of the second output shaft 2411 is in the shape of D, and the cross section of the second mounting hole is also in the shape of D, and the shape of D can prevent misalignment between the second output shaft 2411 and the second mounting hole.

[0180] In an embodiment, as shown in FIG. 1 and FIG. 24, the operating mechanism 2 further comprises a second trigger switch 26, when the prostate staple device 100 is in the shutdown state, the second trigger switch 23 is operated once, which can start the prostate staple device 100 and automatically calibrate the prostate staple device 100 to the initial state to ensure the accuracy of the prostate staple device 100 during long-term use. After automatic calibration, the needle, needle collection and wire collection, clamping and cutting operations are performed again. Of course, the prostate staple device 100 can also not be configured with an automatic calibration function, and the accuracy of the prostate staple device 100 in the useable period is ensured by limiting the number of uses. It should be understood that after the second trigger switch 23 is operated once to start the prostate staple device 100, multiple staple operations can be performed continuously without automatic calibration again, and automatic calibration is only performed when the device is restarted.

[0181] Specifically, if the puncture needle actuator 221 and the staple line actuator 222 are not in their initial positions, when automatic calibration is performed, the first motor 211 operates to drive the puncture needle actuator 221 and the staple line actuator 222 to move in the first direction a to restore to their initial positions, completing the automatic calibration.

[0182] In an embodiment, as shown in FIG. 1 and FIG. 24, the first trigger switch 23 is also used to trigger the second drive assembly 24 to operate, and the actuation of clamping and cutting is controlled by the first trigger switch 23 to avoid accidental triggering of clamping and cutting by the user due to operation errors. Specifically, after the prostate staple device 100 is started, the first trigger switch 23 is operated once to trigger the needle, and is operated once again to trigger the needle collection and wire collection, and is operated once again to trigger the clamping and cutting. That is, through three operations of the first trigger switch 23, the execution of the needle, needle collection and wire collection, clamping and cutting can be controlled in sequence.

[0183] Further, as shown in FIG. 1 and FIG. 24, the first trigger switch 23 is arranged on the front side of the handle 271, and the second trigger switch 26 is arranged on the rear side of the housing 27 and above the handle 271, and the two trigger switches are arranged in opposite positions, which can improve the safety of the operation of the two trigger switches.

[0184] In an embodiment, as shown in FIG. 24, the first trigger switch 23 is a button switch, which is more convenient to use and less likely to be triggered by mistake than the plate switch in the prior art CN114980823A. The second trigger switch 26 is a boat-shaped switch, which is structurally different from the first trigger switch 23 and serves as a differential prompt to avoid user operation errors.

[0185] In an embodiment, as shown in FIG. 1, the prostate staple device 100 includes a battery 292 for powering the device, which is disposed in the handle 271 of the housing 27.

[0186] In an embodiment, as shown in FIG. 1, the housing 27 includes a first shell 273 and a second shell 274, which together enclose a cavity in which the first drive assembly 21, the actuating assembly 22, the second drive assembly 24, and the trigger 25 are located. As shown in FIGS. 1 and 17, the implant mechanism 1 includes a cover 16, a base 17, and a locking knob 18. The cover 16 is connected to the base 17, and the two together sandwich the second mounting member 14. The locking knob 18 is provided on the cover 16. The implant mechanism 1 is detachably mounted on the first shell 273 and locked by the locking knob 18. The first drive assembly 21 and the second drive assembly 24 are mounted on the inner wall of the second shell 274. The assembly of the implant mechanism 1 and the housing 27 can refer to any existing assembly structure and principle of a staple device.

[0187] In an embodiment, as shown in FIG. 1, the operating mechanism 2 further includes an endoscope sheath 291, one end of which is located in the housing 27 and mounted on the first mounting member 224, and the other end extends out of the housing 27.

[0188] In an embodiment, as shown in FIG. 24, the implant mechanism 1 further includes an indicator light 293, which is provided on the housing 27 and used to indicate the current state of the prostate staple device 100. The current state includes an automatic calibration completion state, a needle completion state, a needle and thread retraction completion state, and a clamping and cutting completion state.

[0189] Further, in an embodiment, the number of indicator lights 293 can be one, which displays different colors or different flashing frequencies of light to indicate the above four states, respectively.

[0190] In yet another embodiment, as shown in FIG. 24, the number of indicator lights 293 can be four, and the four different positions of the indicator lights 293 are respectively used to indicate the four states described above. For example, the four indicator lights 293 are spaced apart along the first direction a, and when the prostate staple device 100 is automatically calibrated, the first indicator light 293 in the first direction a is lit; when the prostate staple device 100 is punctured, the second indicator light 293 in the first direction a is lit; when the prostate staple device 100 is retracted, the third indicator light 293 in the first direction a is lit; and when the prostate staple device 100 is clamped and cut, the fourth indicator light 293 in the first direction a is lit. Through the prompt of the indicator light 293, the human-computer interaction is more convenient, the staple operation process is more clear, and the use is safer.

[0191] In an embodiment, as shown in FIGS. 18-21, the puncture needle assembly 11 further comprises a puncture needle connecting piece 111 and a puncture needle guide tube 114 connected thereto, the puncture needle connecting piece 111 is provided with a second insertion part 1111 which is inserted with the first insertion part 2214 of the puncture needle actuating member 221. The staple line assembly 12 further comprises a staple line connecting piece 121, a staple line guide tube 123 and a staple line support tube 124, the staple line connecting piece 121 is provided with a fourth insertion part 1211 which is inserted with the third insertion part 2223 of the staple line actuating member 222. The puncture needle guide tube 114, the staple line guide tube 123 and the staple line support tube 124 all have a hollow structure, one end of the puncture needle guide tube 114 is connected with the puncture needle connecting piece 111, and one end of the puncture needle 112 is inserted into the puncture needle guide tube 114. The staple line guide tube 123 is located in the puncture needle guide tube 114 and is gap-fitted therebetween, one end of the staple line support tube 124 is inserted into the staple line guide tube 123 and connected with one end of the staple line 122, and the other end is connected with the staple line connecting piece 121.

[0192] In an embodiment, as shown in FIGS. 18-20 and 22, the clamping and cutting assembly 13 further comprises a push rod 138 and a pull rod 139, the pull rod 139 being hollow, one end of the push rod 138 being connected with the proximal anchor actuator 133, the other end being movably inserted into the pull rod 139, and the end portion abutting against the proximal anchor 131 along the first direction a; one end of the pull rod 139 being connected with the cutter actuator 134, the other end being connected with the cutter 132. When the proximal anchor actuator 133 and the cutter actuator 134 move towards each other, the proximal anchor actuator 133 moves along the first direction a, and the cutter actuator 134 moves along the second direction b, so that the push rod 138 pushes the proximal anchor 131 to move away along the first direction a, and the pull rod 139 pulls the cutter 132 to move along the second direction b, thereby achieving clamping and cutting. It should be understood that the specific details of the proximal anchor actuator 133 and the cutter actuator 134 moving towards each other to achieve clamping and cutting can refer to the principles and structures of any existing staple device.

[0193] In an embodiment, the implanting mechanism 1 further comprises a gun head welding assembly 15, the specific structure and principle of which can refer to any existing staple device.

[0194] Specifically, a complete operation step of the prostate staple device 100 of the present scheme is as follows:

[0195] (1) Starting and automatic calibration

[0196] The user operates the second trigger switch 26 once to start the prostate staple device 100, and the prostate staple device 100 performs automatic calibration, so that the prostate staple device 100 is in an initial state, at this time, the first protruding portion 22111 of the puncture needle actuator 221 abuts against the first stop portion 22422 along the first direction a and is locked, and the second elastic member 225 is compressed.

[0197] (2) Stabbing needle

[0198] Before the needle is inserted, the user first sends the front end of the implanting mechanism 1 to the proximal side of the prostate, then the user operates the first trigger switch 23 for the first time, the first motor 211 rotates in the forward direction, and the first rack 213 drives the unlocking member 226 to move in the first direction a, when the unlocking member 226 moves to the first unlocking structure 2261 and contacts and presses the first extension arm 22423, the first connecting arm 22421 is deformed, and then the first stop portion 22422 is separated from the first protruding portion 22111, the puncture needle actuating member 221 is unlocked, then the second elastic member 225 rebounds instantaneously to push the puncture needle actuating member 221 and the staple line actuating member 222 to move in the first direction a, wherein the puncture needle actuating member 221 drives the puncture needle assembly 11 to move in the first direction a, and the staple line actuating member 222 drives the staple line assembly 12 to move in the first direction a, the puncture needle 112 penetrates the prostate to deliver the distal anchor 113 located in the puncture needle 112 to the distal side of the prostate, one end of the staple line 122 is located in the puncture needle 112 and connected with the distal anchor 113, and the needle insertion is completed, at this time, the second protruding portion 22211 of the staple line actuating member 222 and the second locking structure 2243 are distributed in the second direction b in sequence and are 2 mm apart from each other.

[0199] Then, the first rack 213 drives the unlocking member 226 to move in the second direction b to the unlocking member initial position, because the boss 2131 of the first rack 213 and the third protruding block 2212 are spaced apart by a certain distance in the second direction b, the puncture needle actuating member 221 does not move under the constraint of the second elastic member 225, when the unlocking member 226 moves to the unlocking member initial position, the first motor 211 stops running, at this time, the boss 2131 and the third protruding block 2212 are spaced apart by 2 mm in the second direction b.

[0200] (3) Needle retraction and line retraction

[0201] The user operates the first trigger switch 23 for the second time, the first motor 211 reverses, drives the first rack 213 and the unlocking member 226 to move in the second direction b, the boss 2131 of the first rack 213 pushes the puncture needle actuating member 221 to move in the second direction b, under the pulling of the first elastic member 223, the staple line actuating member 222 moves in the second direction b along with the puncture needle actuating member 221, when moving 2 mm, the second protruding portion 222111 of the staple line actuating member 222 abuts against the second stop portion 22432 and is locked.

[0202] The first motor 211 continues to reverse, and continues to drive the first rack 213 and the unlocking member 226 to move in the second direction b, the boss 2131 of the first rack 213 pushes the puncture needle actuating member 221 to move in the second direction b, so that the puncture needle actuating member 221 drives the puncture needle assembly 11 to move in the second direction b, so that the puncture needle 112 is withdrawn from the prostate, and the distal anchor 113 remains on the distal side of the prostate, the needle is retracted, and the first elastic member 223 is stretched because the staple line actuating member 222 is locked by the second stop portion 22432 on the first mounting member 224. During the needle retraction process, when the unlocking member 226 moves to the second unlocking structure 2262 and contacts and presses the second extension arm 22433, the second connecting arm 22431 is deformed, and then the second stop portion 22432 is separated from the staple line actuating member 222, the staple line actuating member 222 is unlocked, then the first elastic member 223 is instantaneously retracted to pull the staple line actuating member 222 to move in the second direction b until it abuts against the puncture needle actuating member 221 again, and under the pulling of the first elastic member 223 and the driving of the first rack 213, the staple line actuating member 222 moves in the second direction b together with the puncture needle actuating member 221 to the limit position, the line is retracted, and the distal end is stretched and pressed on the distal side of the prostate by tightening the staple line 122, at this time, the first protruding portion 22111 of the puncture needle actuating member 221 and the first stop portion 22422 of the first locking structure 2242 are distributed in the first direction a in turn and have a gap of 2 mm therebetween, which is a reserved assembly process gap.

[0203] Then, the first rack 213 drives the unlocking member 226 to move in the first direction a by 2 mm, the puncture needle actuating member 221 and the staple line actuating member 222 are simultaneously driven by the second elastic member 225 to move in the first direction a by 2 mm, so that the first protruding portion 22111 abuts against the first stop portion 22422, and the puncture needle actuating member 221 is relocked by the first locking structure 2242. The first rack 213 continues to drive the unlocking member 226 to move in the first direction a to the initial position of the unlocking member, and the first motor 211 stops running.

[0204] (4) Clamping and cutting

[0205] The user first adjusts the angle of the staple line 122 and the prostate through the endoscope of the prostate staple device 100, and then compresses the prostate through the gun head welding assembly 15 of the implanting mechanism 1, so that the prostate is contracted. Then, the user triggers the first switch 23 for the third time, and the second motor 241 operates to drive the trigger 25 to move in the direction of the first locking piece 136 of the clamping and cutting assembly 13. The trigger 25 pushes the first locking piece 136 to rotate to unlock the proximal anchor actuator 133, and the first locking piece 136 pushes the second locking piece 137 to rotate to unlock the cutter actuator 134. Then, under the rebounding force of the third elastic piece 135, the proximal anchor actuator 133 and the cutter actuator 134 move towards each other to achieve clamping and cutting.

[0206] Then, the user releases the prostate tissue, and the prostate tissue rebounds to tension the proximal anchor 131 and the distal anchor 113 outward. The proximal anchor 131 and the distal anchor 113 compress the tissue from both ends of the prostate, respectively, to complete the staple, and the implanting mechanism 1 is withdrawn. After replacing the implanting mechanism 1, a new staple implanting operation can be repeated.

[0207] It should be understood that the above embodiments are exemplary and are not intended to include all possible implementations encompassed by the claims. Various modifications and changes can also be made on the basis of the above embodiments without departing from the scope of the present disclosure. Similarly, any combination of the technical features of the above embodiments can also be made to form additional embodiments of the present application that can not be explicitly described. Therefore, the above embodiments only express several implementations of the present application, and do not limit the protection scope of the present application.

Claims

A prostate staple device characterized by The prostate staple device (100) comprises an implanting mechanism (1) and an operating mechanism (2), the implanting mechanism (1) comprises a puncture needle assembly (11) and a staple line assembly (12), the operating mechanism (2) comprises: a first driving assembly (21) comprising a first motor (211), a first gear (212) and a first rack (213) engaged with each other; an actuating assembly (22) comprising a puncture needle actuating member (221), a staple line actuating member (222) and a first elastic member (223), the first elastic member (223) is connected with the puncture needle actuating member (221) and the staple line actuating member (222) respectively, the puncture needle actuating member (221) is in transmission connection with the puncture needle assembly (11), and the staple line actuating member (222) is in transmission connection with the staple line assembly (12); wherein, when the puncture needle is performed, the first rack (213) provides a linear driving force to trigger the actuating assembly (22) to move from an initial position to a puncture needle completion position in a first direction (a), and the puncture needle actuating member (221) drives the puncture needle assembly (11) to move to puncture the prostate; when the puncture needle is performed, the first rack (213) drives the puncture needle actuating member (221) to drive the puncture needle assembly (11) to move in a second direction (b) to complete the puncture needle, and the first elastic member (223) is energized due to the pulling of the puncture needle actuating member (221), then the staple line actuating member (222) moves in the second direction (b) under the elastic force of the first elastic member (223) to tighten the staple line assembly (12), and the first direction (a) and the second direction (b) are opposite; the operating mechanism (2) further comprises a first trigger switch (23) for triggering the first driving assembly (21) to operate; when the actuating assembly (22) is in the initial state, the first trigger switch (23) is operated once, which can trigger the prostate staple device (100) to perform the puncture needle, then the first trigger switch (23) is operated again once, which can trigger the prostate staple device (100) to perform the puncture needle and the collection of the needle; when the actuating assembly (22) is in the initial state, the puncture needle actuating member (221) is locked; when the puncture needle is performed, the first rack (213) provides power to unlock the puncture needle actuating member (221); when the puncture needle assembly (11) completes the puncture needle or starts to collect the needle, the staple line actuating member (222) is locked; when the puncture needle is performed, in the process that the first rack (213) drives the puncture needle actuating member (221) to move in the second direction (b), the first rack (213) provides power to unlock the staple line actuating member (222), so that the staple line actuating member (222) can move in the second direction (b) under the elastic force of the first elastic member (223). The prostate staple device of claim 1, wherein the actuating assembly (22) further comprises: The first mounting member (224) is provided with a first guide rail (2241), and the puncture needle actuating member (221) and the staple line actuating member (222) are movably connected to the first guide rail (2241) respectively; The second elastic member (225) has one end connected to the first mounting member (224) and the other end connected to the puncture needle actuating member (221); When the actuating assembly (22) is in the initial position, the puncture needle actuating member (221) is locked and the second elastic member (225) is in the energy storage state; When the puncture needle is performed, the first rack (213) provides power to unlock the puncture needle actuating member (221) in the process of linear motion of the first rack (213), and then the puncture needle actuating member (221) moves to the puncture needle completion position in the first direction (a) under the elastic force of the second elastic member (225). The prostate staple device according to claim 2, wherein The first mounting member (224) is provided with a first locking structure (2242) and a second locking structure (2243) distributed in the first direction (a) in sequence; When the actuating assembly (22) is in the initial state, the first locking structure (2242) can prevent the puncture needle actuating member (221) from moving in the first direction (a); when the puncture needle is performed, the first rack (213) provides power to unlock the first locking structure (2242) to enable the puncture needle actuating member (221) to move in the first direction (a) under the elastic force of the second elastic member (225); When the puncture needle assembly (11) completes the puncture needle or starts to collect the needle, the second locking structure (2243) can prevent the staple line actuating member (222) from moving in the second direction (b); when the needle is collected, the first rack (213) provides power to unlock the second locking structure (2243) to enable the staple line actuating member to move in the second direction (b) under the elastic force of the first elastic member (223) to realize the line collection. The prostate staple device of claim 3, wherein The actuating assembly (22) further comprises an unlocking member (226) connected to the first rack (213), and the unlocking member (226) is provided with a first unlocking structure (2261) and a second unlocking structure (2262) distributed in the first direction (a) in sequence; When the puncture needle is performed, the first rack (213) drives the unlocking member (226) to move in the first direction (a) to unlock the first locking structure (2242) through the first unlocking structure (2261); When the needle is collected, the first rack (213) drives the unlocking member (226) to move in the second direction (b) to unlock the second locking structure (2243) through the second unlocking structure (2262). The prostate staple device of claim 4, wherein The first locking structure (2242) comprises a first connecting arm (22421), a first stop (22422) and a first extension arm (22423), one end of the first connecting arm (22421) being a free end, and the first stop (22422) and the first extension arm (22423) being connected to the free end of the first connecting arm (22421) respectively; When the actuating assembly (22) is in the initial state, the puncture needle actuating member (221) is locked by abutting against the first stop (22422) in the first direction (a) at least partially; when the needle is punctured, the first unlocking structure (2261) extrudes the first extension arm (22423) during the movement of the unlocking member (226) in the first direction (a), so that the first connecting arm (22421) is deformed, and then the first stop (22422) is displaced to be unlocked; And / or, the second locking structure (2243) comprises a second connecting arm (22431), a second stop (22432) and a second extension arm (22433), one end of the second connecting arm (22431) being a free end, and the second stop (22432) and the second extension arm (22433) being connected to the free end of the second connecting arm (22431) respectively; When the puncture needle assembly (11) completes the needle puncture or starts the needle retraction, the staple line actuating member is locked by abutting against the second stop (22432) in the second direction (b) at least partially; when the needle is retracted, the second unlocking structure (2262) extrudes the second extension arm (22433) during the movement of the unlocking member (226) in the second direction (b), so that the second connecting arm (22431) is deformed, and then the second stop (22432) is displaced to be unlocked. The prostate staple device according to claim 4, wherein The puncture needle actuating member (221), the staple line actuating member (222) and the first elastic member (223) are located on the side of the first mounting member (224) facing the implanting mechanism (1), and the first driving assembly (21) and the unlocking member (226) are located on the side of the first mounting member (224) facing away from the implanting mechanism (1); The first mounting member (224) is provided with a first through hole (2244) extending in the first direction (a), the puncture needle actuating member (221) comprises a first protruding block (2211), the staple line actuating member (222) comprises a second protruding block (2221), the first protruding block (2211) is provided with a first protruding part (22111), and the second protruding block (2221) is provided with a second protruding part (22211); The first protruding block (2211) is movably inserted into the first through hole (2244), so that the first protruding part (22111) can be locked by abutting against the first locking structure (2242) in the first direction (a); The second protruding block (2221) is movably inserted into the first through hole (2244), so that the second protruding part (22211) can be locked by abutting against the second locking structure (2243) along the second direction (b). The prostate staple device according to claim 4, wherein The puncture needle actuating member (221) comprises a third protruding block (2212), and the first rack (213) is provided with a boss (2131). When the needle is retracted, the boss (2131) can abut against the third protruding block (2212) along the second direction (b), so that the first rack (213) drives the puncture needle actuating member (221) to move along the second direction (b) to complete the needle retraction. The prostate staple device of claim 7, wherein The puncture needle actuating member (221), the staple line actuating member (222) and the first elastic member (223) are located on one side of the first mounting member (224) facing the implanting mechanism (1), and the first driving assembly (21) and the unlocking member (226) are located on the side of the first mounting member (224) away from the implanting mechanism (1); The first mounting member (224) is provided with a second through hole (2245) extending along the first direction (a), and the third protruding block (2212) is movably inserted into the second through hole (2245) and partially protrudes out of the second through hole (2245); When the actuating assembly (22) is in the initial state, the boss (2131) and the third protruding block (2212) are spaced apart in the first direction (a) to avoid interference of the boss (2131) with the movement of the puncture needle actuating member (221) along the first direction (a) to the needle puncture completion position; When the needle puncture is completed, the first rack (213) drives the unlocking member (226) to move to the initial position of the unlocking member, at which time the boss (2131) abuts against the third protruding block (2212) along the second direction (b), or a gap is left between the boss (2131) and the third protruding block (2212). The prostate staple device of claim 1, wherein The first elastic member (223) is a coil spring, the puncture needle actuating member (221) is provided with a first mounting column (2213), the staple line actuating member (222) is provided with a clamping structure (2222), one end of the first elastic member (223) is wound around the first mounting column (2213), and the other end is clamped to the clamping structure (2222); When the actuating assembly (22) is in the initial state, under the action of the first elastic member (223), the staple line actuating member (222) abuts against the puncture needle actuating member (221) along the second direction (b), so that when the needle puncture is performed, the puncture needle actuating member (221) can drive the staple line actuating member (222) to move along the first direction (a). And / or, the puncture needle actuating member (221) is provided with a first insertion part (2214), the puncture needle assembly (11) comprises a second insertion part (1111), the first insertion part (2214) and the second insertion part (1111) are inserted to drive connect the puncture needle actuating member (221) with the puncture needle assembly (11); And / or, the suture line actuating member (222) is provided with a third insertion part (2223), the suture line assembly (12) comprises a fourth insertion part (1211), the third insertion part (2223) and the fourth insertion part (1211) are inserted to drive connect the suture line actuating member (222) with the suture line assembly (12); And / or, the implanting mechanism (1) and the operating mechanism (2) are detachably connected. The prostate staple device of claim 1, wherein The puncture needle assembly (11) comprises a puncture needle (112) and a distal end anchor (113), the distal end anchor (113) is pre-placed in the puncture needle (112) in a hollow structure, the suture line assembly (12) comprises a suture line (122), one end of the suture line (122) is connected with the distal end anchor (113); When the needle is performed, the puncture needle (112) passes through the prostate together with the distal end anchor (113); when the needle is retracted, the puncture needle (112) is retracted to separate from the prostate, and the distal end anchor (113) remains on the distal side of the prostate; when the line is retracted, the distal end anchor (113) is stretched and presses the distal side of the prostate under the pulling of the suture line (122). The prostate staple device of claim 10, wherein The operating mechanism (2) further comprises a second driving assembly (24) comprising a second motor (241), a second gear (242) and a second rack (243) engaged with each other; the implanting mechanism (1) further comprises a clamping and cutting assembly (13) comprising a proximal end anchor (131) and a cutter (132); When the clamping and cutting assembly (13) is in an initial state, it is locked; When clamping and cutting are performed, the second rack (243) provides power to unlock the clamping and cutting assembly (13), the proximal end anchor (131) clamps the suture line (122) on the proximal end of the prostate, and then the cutter (132) cuts the suture line (122) to make the proximal end anchor (131) remain and press the proximal side of the prostate. The prostate staple device of claim 11, wherein The operating mechanism (2) further comprises a trigger (25) connected to the second rack (243); When clamping and cutting are performed, the second rack (243) drives the trigger (25) to move to contact the clamping and cutting assembly (13), and under the pushing of the trigger (25), the clamping and cutting assembly (13) is unlocked. The prostate staple device of claim 12, wherein The implanting mechanism (1) comprises a second mounting member (14), and the clamping and cutting assembly (13) comprises: A proximal end anchor actuating member (133) movably mounted on the second mounting member (14); a cutter actuating member (134) movably mounted on the second mounting member (14); a third elastic member (135) having two ends respectively connected to the proximal anchor actuating member (133) and the cutter actuating member (134); a first locking member (136) rotatably connected to the second mounting member (14); a second locking member (137) rotatably connected to the second mounting member (14); when the clamping and cutting assembly (13) is in the initial state, the first locking member (136) locks the proximal anchor actuating member (133), the second locking member (137) locks the cutter actuating member (134), and the third elastic member (135) is in the tensioned state; when clamping and cutting are performed, the trigger member (25) is moved under the drive of the second rack (243) to push the first locking member (136) to rotate and disengage from the proximal anchor actuating member (133), at the same time, the first locking member (136) is rotated to push the second locking member (137) to rotate and disengage from the cutter actuating member (134), then, under the rebound force of the third elastic member (135), the proximal anchor actuating member (133) and the cutter actuating member (134) move towards each other to achieve clamping and cutting. The prostate staple device of claim 11, wherein The operating mechanism (2) further comprises a second trigger switch (26), when the prostate staple device (100) is in the shutdown state, the second trigger switch (26) is operated once, which can start the prostate staple device (100) and the prostate staple device (100) is automatically calibrated to the initial state. The prostate staple device of claim 14, wherein The operating mechanism (2) further comprises a first trigger switch (23), which is operated once to trigger the second drive assembly (24) to operate; and / or, the operating mechanism (2) further comprises a housing (27) and a first trigger switch (23), the first trigger switch (23) is used to trigger the first drive assembly (21) and the second drive assembly (24) to operate, and the housing (27) comprises a handle (271); The first trigger switch (23) is arranged on the front side of the handle (271), and the second trigger switch (26) is arranged on the rear side of the housing (27) and above the handle (271); and / or, the operating mechanism (2) comprises a first trigger switch (23) for triggering the first drive assembly (21) and the second drive assembly (24) to operate, the first trigger switch (23) is a button switch, and the second trigger switch (26) is a boat-shaped switch; and / or, the second rack (243) is movable in a third direction (c), and the third direction (c) is perpendicular to the first direction (a); And / or, the shell (27) of the operating mechanism (2) comprises a main body part (272) and a handle (271) connected to each other, the first driving assembly (21) and the second motor (241) are located in the main body part (272); the trigger (25) of the operating mechanism (2) comprises a trigger end (251) and a detected end (252), the trigger end (251) is located in the main body part (272) and is used to unlock the clamping and cutting assembly (13), the detected end (252) is at least partially located in the handle (271) and is used to connect a travel switch trigger element (281); And / or, the implanting mechanism (1) further comprises an indicating lamp (293), the indicating lamp (293) is used to indicate the current state of the prostate staple device (100), the current state comprises an automatic calibration completion state, a needle completion state, a needle and line retraction completion state and a clamping and cutting completion state.

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