Biliary tract puncture outfit

Abstract

The invention discloses a biliary tract puncture outfit. The biliary tract puncture outfit comprises a shell, a puncture assembly, a first control piece and a second control piece, the puncture assembly comprises a connecting rod with one end connected to the shell and a puncture needle rotationally connected to the other end of the connecting rod, the other end of the connecting rod is provided with a first rotating axis in the radial direction of the connecting rod, and the puncture needle can rotate around the first rotating axis; according to the biliary tract puncture outfit, the first control piece is used for controlling the rotation angle of the puncture needle, the second control piece can limit the second control piece so that the first control piece can be kept fixed, and then the puncture needle can be kept fixed, the angle of the puncture needle can be adjusted through the first control piece, and then movement of the first control piece is limited through the second control piece; the fixing of the puncture needle is realized, the operation difficulty is reduced, and the use convenience is improved. The invention is applied to the field of medical instruments.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a bile duct puncture device. Background Art

[0002] Trocars are widely used in medical surgeries. For example, trocars are used for puncture in surgical treatments of the bile duct, stomach, intestine, ureter, blood vessels, pancreatic duct, etc.

[0003] Taking biliary tract treatment as an example, cholelithiasis is the most common hepatobiliary surgical disease, with an incidence of approximately 10% in the general population. Of these, 10%-20% of patients also have common bile duct stones, often requiring surgical treatment. Currently, the preferred surgical procedure for treating both cholecystolithiasis and common bile duct stones is laparoscopic cholecystectomy with common bile duct exploration. During the procedure, a trocar is an essential tool, and identifying, traction, and incision of the common bile duct are key to this procedure.

[0004] In the related art, the angle at which the puncture needle is mounted on the puncture device body remains fixed, and medical personnel need to adjust the direction of the handheld puncture device to adjust the direction of the puncture needle, which makes the use of the puncture device inconvenient. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a bile duct puncture device that can adjust and fix the angle of the puncture needle relative to the puncture device body, thereby reducing the difficulty of the operation.

[0006] A bile duct puncture device according to an embodiment of the present invention includes: a shell for holding; The puncture assembly includes a connecting rod connected to the housing at one end and a puncture needle rotatably connected to the other end of the connecting rod, the other end of the connecting rod being provided with a first rotation axis along the radial direction of the connecting rod, and the puncture needle being rotatable about the first rotation axis; a first control member, comprising a first end, a second end, and a first middle portion located between the first and second ends, the first middle portion being rotatably connected to the housing, the first end being transmission-connected to the puncture needle to control the rotation angle of the puncture needle, and the second end extending outside the housing to be driven by an external force; a second control member, comprising a third end, a fourth end, and a second middle portion located between the third and fourth ends, the second middle portion being rotatably connected to the housing, the third end being capable of limiting rotation of the first control member, the fourth end extending outside the housing to be driven by an external force, the second control member having an unlocked position and a locked position; In which, the first control member is configured such that: when the second end is driven by an external force, the puncture needle rotates around the first rotation axis; the second control member is configured such that: when in the locked position, the third end restricts the rotation of the first control member; when in the unlocked position, the third end does not restrict the rotation of the first control member.

[0007] The bile duct puncture device according to the embodiment of the present invention has at least the following beneficial effects: 1. When the puncture needle is inserted into the human body, the rotation angle of the puncture needle is controlled by the first control member. The doctor controls the angle of the puncture needle relative to the housing by controlling the rotation angle of the second end relative to the first middle portion, so that the puncture needle and the part to be punctured can maintain a suitable angle, making subsequent puncture work more convenient; 2. When the puncture needle is adjusted to an appropriate angle, the doctor locks the angle of the puncture needle through the second control member so that the puncture needle remains fixed relative to the housing. The doctor locks the first control member by controlling the angle of rotation of the fourth end relative to the second middle part. The first control member remains in a locked state. Medical staff do not need to hold the first control member for a long time, which reduces the burden on medical staff and makes it more convenient to use.

[0008] According to some embodiments of the present invention, the biliary puncture device further includes: a clamping assembly, the clamping assembly including a first clamping member and a second clamping member both rotatably connected to the shell, a first transmission member rotatably connected to the first clamping member at one end, a second transmission member rotatably connected to the second clamping member at one end, and a driving member rotatably connected to the other end of the first transmission member and the other end of the second transmission member, the first clamping member and the second clamping member are arranged opposite to each other and form a clamping cavity for clamping the first control member therebetween, and the driving member is transmission-connected to the second control member.

[0009] According to some embodiments of the present invention, the biliary puncture device further includes: the second control member includes a first limiting portion provided on the housing, a second limiting portion provided on the third end, and a first elastic member with one end rotatably connected to the housing, the other end of the first elastic member is rotatably connected to the third end, the second limiting portion can be limited by the first limiting portion and has the unlocking position, the locking position and the reset position, and the third end is transmission-connected to the driving member; Wherein, the second control member is configured as follows: when moving from the unlocking position to the locking position, the first elastic member stores elastic potential energy and moves with the driving member to drive the first clamping member and the second clamping member to shrink the clamping cavity; when in the locking position, the trajectory groove limits the movement of the limiting part, the first elasticity has elastic potential energy, and the first clamping member and the second clamping member clamp the first control member; when moving from the locking position to the reset position, the first elastic member stores elastic potential energy; when moving from the reset position to the unlocking position, the first elastic member releases elastic potential energy, the driving member resets, the clamping cavity expands, and the first clamping member and the second clamping member release the first control member.

[0010] According to some embodiments of the present invention, the first limiting portion is groove-shaped and includes a first track segment, a second track segment connected to the first track segment, and a third track segment connected to the second track segment and the first track segment, the first track segment includes a first starting end and a first tail end higher than the first starting end, the second track segment includes a second starting end and a second tail end higher than the second starting end, the second starting end is connected to the first tail end, and the second starting end is lower than the first tail end, the third track segment includes a third starting end and a third tail end, the third starting end is connected to the second tail end, the third tail end is connected to the middle of the first track segment or the first starting end, and the third tail end is higher than the connection position of the first track segment; The third end portion includes a reset post having a guide groove, a second elastic member having one end connected to the bottom of the guide groove, and a limiting post having one end connected to the other end of the second elastic member, wherein a portion of the limiting post is disposed within the guide groove, the reset post is capable of radially sliding along the rotation track of the second control member, and the other end of the limiting post is capable of abutting against the first track segment and the second track segment; In which, the reset column is configured as follows: when it moves from the first starting end to the first tail end under the action of external force, the limit column retracts, the second elastic part stores elastic potential energy, and the first elastic part stores elastic potential energy; when it moves to the second starting end, the second elastic part releases elastic potential energy, and the limit column extends and is clamped on the first tail end; when it moves from the second starting end to the second tail end under the action of external force, the limit column retracts, the second elastic part stores elastic potential energy, and the first elastic part stores elastic potential energy; when it moves to the third starting end, the reset column moves radially along the rotation trajectory to enter the third trajectory segment, the first elastic part releases elastic potential energy, drives the guide column to reset from the third tail end to the first trajectory segment, and resets to the first starting end; when it moves from the third tail end to the first trajectory segment, the limit column extends and is limited within the first trajectory segment.

[0011] According to some embodiments of the present invention, the third end portion further comprises a reset groove and a third elastic member radially arranged along the rotation trajectory, one end of the third elastic member is connected to the reset groove, and the other end is connected to the reset post; In which, the third elastic member is configured as follows: when the reset post is located within the first track segment and the second track segment, the third elastic member stores elastic potential energy; when the reset post is located at the third starting end, the third elastic member releases elastic potential energy and drives the reset post to move radially along the rotation track to enter the third track segment; when the reset post is located at the third tail end, the third elastic member re-stores elastic potential energy and enters the first track segment.

[0012] According to some embodiments of the present invention, the biliary puncture device further comprises: a transmission member that transmits and connects the driving member and the second control member, wherein the transmission member can drive the linear motion of the driving member through the arc motion of the second control member.

[0013] According to some embodiments of the present invention, the transmission member includes a third rotating portion, a first waist-shaped hole portion, and a second waist-shaped hole portion which are arranged in sequence, the third rotating portion is rotatably connected to the third end portion, the long axis of the first waist-shaped hole portion is arranged in the same direction as the long axis of the second waist-shaped hole, the first waist-shaped hole is rotationally limited and connected to the shell, the second waist-shaped hole portion is rotationally limited and connected to the driving member, and the driving member is linearly limited and slidably connected to the shell.

[0014] According to some embodiments of the present invention, the biliary puncture device further includes: a clamping assembly and a controller, the clamping assembly including a first clamping member and a second clamping member both rotatably connected to the housing, a first transmission member rotatably connected to the first clamping member at one end, a second transmission member rotatably connected to the second clamping member at one end, a drive source rotatably connected to the other end of the first transmission member and the other end of the second transmission member, and a trigger element electrically connected to the drive source, the first clamping member and the second clamping member being arranged opposite to each other and forming a clamping cavity for clamping the first control member therebetween, the trigger element being electrically connected to the controller and being arranged in the unlocked position of the second control member; The controller is configured to receive a signal indicating that the trigger element is triggered when the second control member moves to the unlocking position, and control the driving source to drive the first clamping member and the second clamping member to clamp the first control member.

[0015] According to some embodiments of the present invention, the puncture assembly further includes a control rod passed through the connecting rod, one end of the control rod passed through the shell and transmission-connected to the first end portion, and the other end rotatably connected to the puncture needle, and the other end of the control rod is provided with a second rotation axis which is in the same direction as the first rotation axis, and the second rotation axis and the first rotation axis are spaced apart radially along the connecting rod.

[0016] According to some embodiments of the present invention, the biliary puncture device further comprises: an electrical guide wire connected to an external circuit and a third control component; The conductive wire is passed through the housing and is electrically connected to the puncture needle; The third control member includes a fifth end, a sixth end, and a third middle portion located between the fifth and sixth ends, the third middle portion being rotatably connected to the housing, the fifth end being used to control the circuit connection of the conductive wire, the fifth end having an initial position and a conducting position, the sixth end being capable of automatically resetting to the initial position, and the sixth end being driven by an external force; Wherein, the third control component is configured such that: in the initial position, the circuit of the conductive wire is disconnected; in the reset position, the circuit of the conductive wire is connected.

[0017] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which: Figure 1 This is a schematic structural diagram of a bile duct puncture device according to an embodiment of the present invention; Figure 2 This is an exploded schematic diagram of a bile duct puncture device according to an embodiment of the present invention; Figure 3 for Figure 2 A partial enlarged schematic diagram of part A; Figure 4 This is a structural schematic diagram of a second control member of a biliary puncture device in an unlocked position according to an embodiment of the present invention; Figure 5 This is a structural schematic diagram of a second control member of a biliary puncture device in a locked position according to an embodiment of the present invention; Figure 6 This is a partial structural diagram of a second control member of a biliary puncture device according to an embodiment of the present invention in an unlocked position; Figure 7 This is a partial structural diagram of a biliary puncture device according to an embodiment of the present invention, in which the second control member is in a locked position; Figure 8 This is a schematic structural diagram of the second limiting portion and the first limiting portion of the second control member of the biliary puncture device in an embodiment of the present invention being in a locked position; Figure 9 This is a schematic structural diagram of the first limiting portion of a biliary puncture device according to an embodiment of the present invention.

[0019] Figure Number: Housing 100; grip portion 110; first position-limiting portion 120; first track segment 121; second track segment 122; third track segment 123; Puncture assembly 200; connecting rod 210; puncture needle 220; first rotating part 221; second rotating part 222; control rod 230; First control member 300; first end portion 310; second end portion 320; first middle portion 330; Second control member 400; third end portion 410; fourth end portion 420; second middle portion 430; second limiting portion 440; reset post 441; second elastic member 442; limiting post 443; first elastic member 450; reset groove 460; third elastic member 470; Clamping assembly 500; first clamping member 510; second clamping member 520; first transmission member 530; second transmission member 540; driving member 550; Transmission member 600; first rotating portion 610; first waist-shaped hole portion 620; second waist-shaped hole portion 630; The third control component 700 . DETAILED DESCRIPTION

[0020] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0021] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present invention, "a number" refers to one or more, and "a plurality" refers to two or more. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly indicating the number or order of the technical features.

[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0024] During a bile duct puncture, the doctor holds the puncture device and inserts the puncture needle into the abdominal cavity. When the puncture needle reaches the common bile duct, the common bile duct is punctured. After puncture, the common bile duct is partially pulled out and then cut with an electric cutter. Before puncture, the puncture needle needs to be aligned with the common bile duct along the direction of bile flow in the common bile duct to cut the common bile duct along the direction of bile flow. However, the puncture needle remains fixed relative to the puncture device. Medical staff can only adjust the angle of the puncture needle by adjusting the position of the puncture device. Biliary duct puncture is a minimally invasive surgery with a small surgical incision, which further increases the difficulty of adjusting the puncture needle angle and causes inconvenience for medical staff.

[0025] Reference Figures 1 to 9 As shown, an embodiment of the present invention provides a biliary puncture device, comprising: a housing 100, a puncture assembly 200, a first control member 300 and a second control member 400, wherein the housing 100 is for holding; the puncture assembly 200 includes a connecting rod 210 connected to the housing 100 at one end and a puncture needle 220 rotatably connected to the other end of the connecting rod 210, the other end of the connecting rod 210 is provided with a first rotation axis along the radial direction of the connecting rod 210, and the puncture needle 220 can rotate around the first rotation axis; the first control member 300 is used to control the rotation angle of the puncture needle 220, and the second control member 400 can limit the second control member 400 so that the first control member 300 remains fixed, thereby keeping the puncture needle 220 fixed. The biliary puncture device in this embodiment can adjust the angle of the puncture needle 220 by the first control member 300, and then limit the movement of the first control member 300 by the second control member 400 to achieve the fixation of the puncture needle 220, reduce the difficulty of the operation, and improve the convenience of use.

[0026] It should be noted that the bile duct puncture device in this embodiment is not limited to the field of bile duct puncture, but can also be used in the puncture fields of the stomach, intestine, ureter, blood vessel, pancreatic duct, etc.

[0027] In this embodiment, referring to Figure 1 and Figure 2As shown, the housing 100 is designed for the doctor to hold and connect to the puncture assembly 200. It can also connect to other devices, such as a high-frequency pulse power supply, to facilitate user control. Specifically, the housing 100 includes a first half shell and a second half shell. The opposing surfaces of the first half shell and the second half shell are provided with mutually cooperating hollow connecting columns or solid connecting columns. The first half shell and the second half shell form a locking channel through the mutually cooperating hollow connecting columns. Bolts are passed through the locking channel to lock the first and second half shells, and / or the first and second half shells are connected by the hollow connecting columns and the solid connecting columns to achieve a locked connection. The housing 100 also forms a rotation axis for the first control member 300 and the second control member 400. A mounting cavity is formed between the first and second half shells to accommodate other components of the biliary puncture device, such as the controller, the first control member 300 and the second control member 400, etc. Among them, a gripping portion 110 for human hand holding is formed on the shell 100. The gripping portion 110 can be cylindrical or ring-shaped. Taking the ring-shaped gripping portion 110 as an example, the inner circumference of the gripping ring has a gripping area that is shaped like a human finger. Considering the controllability of other positions, the gripping portion 110 is generally only for three fingers to hold, namely the middle finger, ring finger and little finger.

[0028] Reference Figure 1 and Figure 2 As shown, the first control member 300 includes a first end 310, a second end 320, and a first middle portion 330 located between the first and second ends 310, 320. The first middle portion 330 is rotatably connected to the housing 100. The first end 310 is transmission-connected to the puncture needle 220 to control the rotation angle of the puncture needle 220. The second end 320 extends outside the housing 100 to be driven by an external force. Specifically, the first control member 300 is a first trigger. The second end 320 has a curved surface (e.g., a curved trigger) or an annular through-hole (e.g., a ring-shaped trigger) for gripping by a doctor's finger. The first end 310 is gripped by the doctor's thumb. When the doctor actuates the second end 320, the second end 320 rotates about the first middle portion 330, causing the first end 310 to rotate. The movement of the first end 310 controls the rotation of the puncture needle 220.

[0029] Reference Figure 3 and Figure 4As shown, the second control member 400 includes a third end 410, a fourth end 420, and a second middle portion 430 located between the third and fourth ends 410, 420. The second middle portion 430 is rotatably connected to the housing 100. The third end 410 can limit the rotation of the first control member 300. The fourth end 420 extends outside the housing 100 to allow external force to drive the second control member 400. The second control member 400 has an unlocked position and a locked position. Specifically, the second control member 400 serves as a second trigger. The fourth end 420 has a curved surface or an annular through-hole for a doctor's finger to grasp, wherein the fourth end 420 is intended to be grasped by the doctor's index finger. When the doctor actuates the fourth end 420, the fourth end 420 rotates about the second middle portion 430, causing the third end 410 to rotate. The movement of the third end 410 restricts the rotation of the first control member 300, thereby limiting the rotation of the first control member 300 and, in turn, the puncture needle 220, reducing the doctor's operating burden and enhancing ease of use.

[0030] In which, the first control member 300 is configured such that: when the second end 320 is driven by an external force, the puncture needle 220 rotates around the first rotation axis; the second control member 400 is configured such that: when in the locked position, the third end 410 limits the rotation of the first control member 300; when in the unlocked position, the third end 410 does not limit the rotation of the first control member 300.

[0031] It is worth understanding that when the puncture needle 220 is inserted into the human body, the rotation angle of the puncture needle 220 is controlled by the first control member 300, wherein the doctor controls the angle of the puncture needle 220 relative to the shell 100 by controlling the rotation angle of the second end 320 relative to the first middle part 330, so that the puncture needle 220 and the part to be punctured can maintain a suitable angle, which is more convenient for subsequent puncture work; when the puncture needle 220 is adjusted to a suitable angle, the doctor locks the angle of the puncture needle 220 through the second control member 400, so that the puncture needle 220 remains fixed relative to the shell 100, wherein the doctor locks the first control member 300 by controlling the rotation angle of the fourth end 420 relative to the second middle part 430. The first control member 300 remains in a locked state, and medical staff do not need to hold the first control member 300 for a long time. The use burden of medical staff is smaller and the use is more convenient.

[0032] Reference Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, in some specific embodiments of the present invention, the biliary puncture instrument also includes: a clamping assembly 500, the clamping assembly 500 includes a first clamping member 510 and a second clamping member 520 both rotatably connected to the shell 100, a first transmission member 530 rotatably connected to the first clamping member 510 at one end, a second transmission member 540 rotatably connected to the second clamping member 520 at one end, and a driving member 550 rotatably connected to the other end of the first transmission member 530 and the other end of the second transmission member 540, the first clamping member 510 and the second clamping member 520 are arranged opposite to each other and form a clamping cavity for clamping the first control member 300 therebetween, and the driving member 550 is transmission-connected to the second control member 400.

[0033] It should be noted that the clamping assembly 500 clamps the first control member 300 along the rotation axis of the first control member 300 to avoid affecting the rotation of the first control member 300 .

[0034] It is worth understanding that by clamping and fixing through the clamping assembly 500, when the first control member 300 is rotated to any angle, the clamping assembly 500 can clamp and fix the first control member 300, and can fix the puncture needle 220 at any angle, with a wider range of fixed angles and better applicability.

[0035] In this embodiment, the middle portion of the first clamping member 510 is rotatably connected to the shell 100, one end of the first clamping member 510 is rotatably connected to one end of the first transmission member 530, and the other end of the first transmission member 530 is rotatably connected to the driving member 550. When the driving member 550 moves toward the direction of the first clamping member 510, the first transmission member 530 pulls the first clamping member 510 to rotate around the shell 100, and the second clamping member 520 moves in the same manner as the first clamping member 510. When the driving member 550 moves toward the direction of the first clamping member 510, the first clamping member 510 and the second clamping member 520 approach each other to clamp the first control member 300.

[0036] Alternatively, one end of the first clamping member 510 is rotatably connected to the shell 100, the middle part of the first clamping member 510 is rotatably connected to one end of the first transmission member 530, and the other end of the first transmission member 530 is rotatably connected to the driving member 550. When the driving member 550 moves in a direction away from the first clamping member 510, the first transmission member 530 pulls the first clamping member 510 to rotate around the shell 100, and the second clamping member 520 moves in the same manner as the first clamping member 510. When the driving member 550 moves in a direction away from the first clamping member 510, the first clamping member 510 and the second clamping member 520 approach each other to clamp the first control member 300.

[0037] Therefore, the driving member 550 can clamp the first control member 300 in the above manner whether it moves toward or away from the first control member 300, and the specific implementation method can be selected as needed. In addition, specifically, the first clamping member 510 is rotatably connected to the first half shell, and the second clamping member 520 is rotatably connected to the second half shell. The clamping ends of the first clamping member 510 and the second clamping member 520 are both provided with friction surfaces that increase friction, such as grooves or bumps. The clamping ends can also be provided with friction layers, such as rubber, to increase the friction coefficient. The rotation axis of the first clamping member rotatably connected to the first half shell is perpendicular to the rotation axis of the second middle portion 430 and the shell 100, and the rotation axis of the second clamping member rotatably connected to the second half shell is perpendicular to the rotation axis of the second middle portion 430 and the shell 100.

[0038] As another embodiment, the biliary puncture device also includes a locking pin and a locking spring. One end of the locking pin abuts the locking spring. In the unlocked position, the other end of the locking pin abuts the second control member 400. The locking spring is in a compressed state. When the second control member 400 rotates to the locked position, the second control member 400 disengages the locking pin, allowing the locking pin to extend under the drive of the locking spring. The first control member 300 is provided with a plurality of locking holes spaced in sequence around the circumference of the first middle portion 330. The locking pin extends into one of the locking holes, so that the first control member 300 is restricted from rotation, thereby securing the puncture needle 220. However, the puncture needle 220 can only be secured at a few preset angles. In addition, the locking pin abuts the locking spring and is further provided with an unlocking portion extending from the housing 100. When the locking pin is locked in the locking hole, the locking hole can be unlocked by pulling out the unlocking portion, allowing the first control member 300 to continue to rotate. The second control member 400 can be moved to the unlocked position to continue blocking the other end of the locking pin.

[0039] Reference Figure 5 、 Figure 6 and Figure 7 As shown, in some embodiments of the present invention, the biliary puncture device further includes: a first limiting portion 120 provided on the housing 100, the second control member 400 includes a second limiting portion 440 provided on the third end portion 410 and a first elastic member 450 rotatably connected to the housing 100 at one end, the other end of the first elastic member 450 is rotatably connected to the third end portion 410, the second limiting portion 440 can be limited by the first limiting portion 120, and has an unlocked position, a locked position, and a reset position, and the third end portion 410 is transmission-connected to the driving member 550; In which, the second control member 400 is configured as follows: when moving from the unlocking position to the locking position, the first elastic member 450 stores elastic potential energy and moves with the driving member 550 to drive the first clamping member 510 and the second clamping member 520 to shrink the clamping cavity; in the locking position, the track groove limits the movement of the limiting part, the first elastic member 450 has elastic potential energy, and the first clamping member 510 and the second clamping member 520 clamp the first control member 300; when moving from the locking position to the reset position, the first elastic member 450 stores elastic potential energy; when moving from the reset position to the unlocking position, the first elastic member 450 releases elastic potential energy, the driving member 550 resets, the clamping cavity expands, and the first clamping member 510 and the second clamping member 520 release the first control member 300.

[0040] It is worth understanding that the second limit portion 440 has a locking position that can be locked through the first limit portion 120 through the reset position, and can complete the reset from the locking position to the unlocking position through the reset position, so that the second control component 400 completes the unlocking-locking-resetting control cycle of the first control component 300, forming a closed control chain. During the overall control cycle, medical staff only need to press the second control component 400, which is more convenient to use.

[0041] In addition, a buffer layer is provided at the clamping end to absorb the additional clamping force applied by the driving member 550 to the first clamping member 510 and the second clamping member 520 from the locking position to the reset position. The buffer layer is also rubber, that is, the rubber not only increases the friction coefficient but also absorbs the additional clamping force. In this embodiment, the first clamping member 510 and the second clamping member 520 are rod-shaped, and the buffer layer is directly sleeved on the first clamping member 510 and the second clamping member 520.

[0042] Reference Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, in some specific embodiments of the present invention, the first limiting portion 120 is groove-shaped and includes a first track segment 121, a second track segment 122 connected to the first track segment 121, and a third track segment 123 connected to the second track segment 122 and the first track segment 121. The first track segment 121 includes a first starting end and a first tail end higher than the first starting end. The second track segment 122 includes a second starting end and a second tail end higher than the second starting end. The second starting end is connected to the first tail end and the second starting end is lower than the first tail end. The third track segment 123 includes a third starting end and a third tail end. The third starting end is connected to the second tail end. The third tail end is connected to the middle part or the first starting end of the first track segment 121, and the third tail end is higher than the connection position of the first track segment 121. The third end portion 410 includes a reset post 441 having a guide groove, a second elastic member 442 having one end connected to the bottom of the guide groove, and a limiting post 443 having one end connected to the other end of the second elastic member 442. The limiting post 443 is partially disposed within the guide groove. The reset post 441 can slide radially along the rotation trajectory of the second control member 400, and the other end of the limiting post 443 can abut against the first trajectory segment 121 and the second trajectory segment 122. Among them, the reset column 441 is configured as follows: when it moves from the first starting end to the first tail end under the action of external force, the limit column 443 retracts, the second elastic member 442 stores elastic potential energy, and the first elasticity stores elastic potential energy; when it moves to the second starting end, the second elastic member 442 releases the elastic potential energy, and the limit column 443 extends and is clamped at the first tail end; when it moves from the second starting end to the second tail end under the action of external force, the limit column 443 retracts, the second elastic member 442 stores elastic potential energy, and the first elasticity stores elastic potential energy; when it moves to the third starting end, the reset column 441 moves radially along the rotation trajectory to enter the third trajectory segment 123, the first elastic member 450 releases elastic potential energy, drives the guide column to reset from the third tail end to the first trajectory segment 121, and resets to the first starting end; when it moves from the third tail end to the first trajectory segment 121, the limit column 443 extends and is limited within the first trajectory segment 121.

[0043] In this embodiment, the first and second half shells together clamp the second control member 400 and form the plurality of rotating axes of the second control member 400. For ease of understanding, the connection between the first and second half shells is used as an example for illustration. A groove-shaped first limiting portion 120 is formed on one side of the first half shell relative to the second half shell. The first, second, and third track segments 121, 122, and 123 of the first limiting portion 120 all refer to the structure of the groove bottom. The first track segment 121 increases in height from the first starting end to the first trailing end. In other words, the depth from the groove bottom to the groove opening decreases, gradually decreasing in depth along this direction. The groove opening remains unchanged, while the groove bottom increases. The second track segment 122 increases in height from the second starting end to the second trailing end. Among them, the third track segment 123 can remain unchanged or rise or fall. The third track segment 123 only needs to satisfy that the third tail end is higher than the first track segment 121 at the connecting position, so that when the limiting column 443 passes through the first track segment 121, it can only move within the first track segment 121, and it is difficult to cross the side wall of the first track segment 121 and enter the third track segment 123. The limiting column 443 moves along a fixed circulation direction, which is more reliable to use.

[0044] The height increase of the groove bottom surface of the first track segment 121 can be continuous from the first starting end to the first tail end, or can be continuous in one or more sections between the first starting end and the first tail end. In this embodiment, the former is adopted. The height increase of the groove bottom surface of the second track segment 122 can be continuous from the second starting end to the second tail end, or can be continuous in one or more sections between the second starting end and the second tail end. In this embodiment, the height increase is continuous in the section of the second track segment 122 starting from the second starting end. The groove bottom surface height of subsequent second track segments 122 remains unchanged, so that the slope of the second track segment 122 is higher than that of the first track segment 121. When the limit post 443 enters the second track segment 122, it will encounter greater resistance. This resistance allows the doctor to determine whether the trigger being grasped is the second control member 400 or another control member, preventing the doctor from accidentally touching the second control member 400 from a locked position and returning it to an unlocked position, thereby affecting the surgery. The doctor can also conveniently determine whether the second control member 400 is being grasped by feel.

[0045] Among them, the height difference between the first tail end and the second starting end forms a stop step. When the limit column 443 passes the first tail end and enters the second starting end, the limit column 443 that compresses the second elastic member 442 no longer compresses the second elastic member 442, so that the second elastic member 442 extends out and is stopped by the stop step. Even if the limit column 443 is affected by the elastic potential energy of the first elastic member 450 and has a tendency to move toward the first starting end, the limit column 443 cannot cross the stop step. When not affected by external force, the limit column 443 will stop at the stop step and maintain relative At this time, the second control member 400 is in the locked position and limits the rotation of the first control member 300. Only when it is driven by an external force to overcome the elastic force of the first elastic member 450 and the upward resistance of the second track segment 122, can the limiting post 443 enter the third track segment 123. Moreover, after the limiting post 443 enters the third track segment 123, the first elastic member 450 releases the elastic force, so that the limiting post 443 can smoothly pass through the third track segment 123 into the first track segment 121 and reset to the first starting end of the first track segment 121.

[0046] Reference Figure 7 and Figure 8 As shown, in some specific embodiments of the present invention, the third end portion 410 further includes a reset groove 460 and a third elastic member 470 radially arranged along the rotation trajectory, one end of the third elastic member 470 is connected to the reset groove 460, and the other end is connected to the reset post 441; Among them, the third elastic member 470 is configured as follows: when the reset column 441 is located within the first track segment 121 and the second track segment 122, the third elastic member 470 stores elastic potential energy; when the reset column 441 is located at the third starting end, the third elastic member 470 releases elastic potential energy and drives the reset column 441 to move radially along the rotation track to enter the third track segment 123; when the reset column 441 is located at the third tail end, the third elastic member 470 stores elastic potential energy again and enters the first track segment 121.

[0047] It is worth understanding that when the reset column 441 of the third end 410 rotates to the third starting end, the third end 410 will enter the third track segment 123 driven by the third elastic member 470, so that the reset column 441 can move along the third track segment 123, and the movement of the reset column 441 is realized by the third elastic member 470.

[0048] In this embodiment, when the reset post 441 is located at the third starting end, it enters the third track segment 123 through the elastic force of the third elastic member 470, and when the reset post 441 moves along the third track segment 123 to the third tail end, the third elastic member 470 re-stores elastic potential energy through the third track segment 123 and enters the first track segment 121, so as to continue to drive the reset post 441 in the reset position to enter the third track segment 123 in the next control cycle.

[0049] Reference Figure 5 and Figure 6 As shown, in some embodiments of the present invention, the biliary puncture device further includes: a transmission member 600 that transmits and connects the driving member 550 and the second control member 400 , and the transmission member 600 can drive the linear motion of the driving member 550 through the arc motion of the second control member 400 .

[0050] It is worth understanding that the arc motion of the second control member 400 is converted into the linear motion of the driving member 550 through the transmission member 600, so that the driving member 550 moves in a linear direction and drives the first clamping member 510 and the second clamping member 520 to clamp the first control member 300, and the movement of the driving member 550 is more reliable.

[0051] Reference Figure 5 and Figure 6 As shown, in some specific embodiments of the present invention, the transmission member 600 includes a third rotating portion 610, a first waist-shaped hole portion 620 and a second waist-shaped hole portion 630 arranged in sequence, the third rotating portion 610 is rotatably connected to the third end portion 410, the long axis of the first waist-shaped hole portion 620 is arranged in the same direction as the long axis of the second waist-shaped hole, the first waist-shaped hole is rotationally limited and connected to the shell 100, the second waist-shaped hole portion 630 is rotationally limited and connected to the driving member 550, and the driving member 550 is linearly limited and slidably connected to the shell 100.

[0052] In this embodiment, the third rotating portion 610 is rotatably connected to the third end portion 410. The first waist-shaped hole is limited by the rotating shaft on the housing 100. The first waist-shaped hole can move relative to the rotating shaft along its own long axis while rotating about the rotating shaft, so that the first waist-shaped hole can perform a mixed motion of arcuate motion and linear motion. The second waist-shaped hole similarly performs a mixed motion of arcuate motion and linear motion. The driving member 550 is linearly limited and slidably connected to the housing 100. The driving member 550 moves only in a linear direction and is driven by the linear motion of the second waist-shaped hole to achieve linear movement of the driving member 550. In other words, the arcuate motion of the second control member 400 is converted into linear movement of the driving member 550 through the transmission member 600. The driving member 550 drives the first clamping member 510 and the second clamping member 520 to clamp or release through linear movement.

[0053] In some specific embodiments of the present invention, the biliary puncture device further includes: a clamping assembly 500 and a controller, the clamping assembly 500 including a first clamping member 510 and a second clamping member 520 both rotatably connected to the housing 100, a first transmission member 530 rotatably connected to the first clamping member 510 at one end, a second transmission member 540 rotatably connected to the second clamping member 520 at one end, a driving source rotatably connected to the other end of the first transmission member 530 and the other end of the second transmission member 540, and a trigger element electrically connected to the driving source, the first clamping member 510 and the second clamping member 520 are arranged opposite to each other and form a clamping cavity for clamping the first control member 300 therebetween, the trigger element is electrically connected to the controller and is provided in the unlocked position of the second control member 400; The controller is configured to receive a signal indicating that the trigger element is triggered when the second control member 400 moves to the unlocked position, and control the driving source to drive the first clamping member 510 and the second clamping member 520 to clamp the first control member 300 .

[0054] It is worth understanding that, in addition to the clamping assembly 500 driven by the above-mentioned mechanical transmission method for clamping, the clamping assembly 500 can also be driven by electrical control for clamping, and the structure of the bile duct puncture device can be simplified, and the structural design is simpler.

[0055] In this embodiment, the controller can be a programmable logic controller (PLC) or an integrated processor with storage, and the trigger element can be a micro photoelectric switch. When the second control member 400 passes through the micro photoelectric switch, the micro photoelectric switch is triggered to operate, so that the driving source drives the first clamping member 510 and the second clamping member 520 to clamp and fix the first control member 300, wherein the driving source can be a telescopic rod. In addition, the above devices that require electric drive all have a power supply, which is a built-in battery or an external power supply. The external power supply refers to: connected to a socket through wires, etc., connected to the power grid, or a separate external functional power supply.

[0056] Reference Figure 2 and Figure 3 As shown, in some specific embodiments of the present invention, the puncture assembly 200 also includes a control rod 230 that is inserted into the connecting rod 210, one end of the control rod 230 is inserted into the shell 100 and is transmission-connected to the first end portion 310, and the other end is rotationally connected to the puncture needle 220, and the other end of the control rod 230 is provided with a second rotation axis that is in the same direction as the first rotation axis, and the second rotation axis and the first rotation axis are arranged at intervals along the radial direction of the connecting rod 210.

[0057] It is worth noting that when the control rod 230 is pulled by the first control member 300 , the control member retracts, and the second rotation axis of the puncture needle 220 rotates around the first rotation axis, thereby achieving angle adjustment of the puncture needle 220 .

[0058] Specifically, the puncture needle 220 includes a first rotating part 221 and a second rotating part 222 spaced apart along the radial direction of the connecting rod 210. The first rotating part 221 has a first rotating axis, and the second rotating part 222 has a second rotating axis. The first rotating part 221 can be a rotating hole or a rotating shaft, and the second rotating part 222 is a rotating hole or a rotating shaft. In this embodiment, the first rotating part 221 and the second rotating part 222 are both rotating holes.

[0059] Reference Figure 1 As shown, in some specific embodiments of the present invention, the biliary puncture device further includes: an external circuit conductive wire and a third control component 700; the conductive wire is passed through the shell 100 and is electrically connected to the puncture needle 220; the third control component 700 includes a fifth end, a sixth end and a third middle portion located between the fifth end and the sixth end, the third middle portion is rotatably connected to the shell 100, the fifth end is used to control the circuit connection of the conductive wire, the fifth end has an initial position and a conducting position, the sixth end can automatically reset to the initial position, and the sixth end is for external force driving; wherein, the third control component 700 is configured as follows: in the initial position, the circuit of the conductive wire is disconnected; in the reset position, the circuit of the conductive wire is connected.

[0060] It should be noted that electrocautery is widely used in surgery to cut open bile ducts, blood vessels, or other ducts in the human body. The high temperature of the electrocautery can directly coagulate the incision without bleeding. However, electrocautery often uses a separate electrocautery device, requiring additional equipment after bile duct puncture, making it inconvenient to use.

[0061] It is worth noting that in this embodiment, the electrocuting function is integrated into the bile duct puncture device, and the electrocuting is controlled by the third control component 700. After the puncture needle 220 punctures, the third control component 700 can be powered on by controlling the puncture needle 220 to enable the bile duct puncture device to electrocute.

[0062] Specifically, the third control component 700 also has an arc surface or annular surface for the doctor's fingers to hold. The doctor can control the second control component 400 and the third control component 700 respectively with the index finger, so that the doctor cannot use the second control component 400 and the third control component 700 at the same time, avoiding accidental touch by the doctor and improving the safety of use.

[0063] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. A bile duct puncture device, It is characterized in that include: A housing for holding; The puncture assembly comprises a connecting rod connected to the housing at one end and a puncture needle rotatably connected to the other end of the connecting rod, wherein the other end of the connecting rod is provided with a first rotation axis along the radial direction of the connecting rod, and the puncture needle can rotate around the first rotation axis; A first control member, comprising a first end, a second end, and a first middle portion located between the first end and the second end, wherein the first middle portion is rotatably connected to the housing, the first end is transmission-connected to the puncture needle to control the rotation angle of the puncture needle, and the second end extends out of the housing to be driven by an external force; A second control member, comprising a third end, a fourth end, and a second middle portion located between the third end and the fourth end, wherein the second middle portion is rotatably connected to the housing, the third end can limit the rotation of the first control member, the fourth end extends out of the housing to be driven by an external force, and the second control member has an unlocking position and a locking position; Wherein, the first control member is configured such that: when the second end is driven by an external force, the puncture needle rotates around the first rotation axis; the second control member is configured such that: when in the locked position, the third end limits the rotation of the first control member; when in the unlocked position, the third end does not limit the rotation of the first control member.

2. The biliary puncture device according to claim 1, It is characterized in that Also includes: A clamping assembly, the clamping assembly includes a first clamping member and a second clamping member both rotatably connected to the shell, a first transmission member one end of which is rotatably connected to the first clamping member, a second transmission member one end of which is rotatably connected to the second clamping member, and a driving member rotatably connected to the other ends of the first transmission member and the second transmission member, the first clamping member and the second clamping member are arranged opposite to each other and a clamping cavity for clamping the first control member is formed therebetween, and the driving member is transmission-connected to the second control member.

3. The biliary puncture device according to claim 2, It is characterized in that Also includes: The first limiting part is arranged on the housing, the second control member includes a second limiting part arranged on the third end portion and a first elastic member rotatably connected to the housing at one end, the other end of the first elastic member is rotatably connected to the third end portion, the second limiting part can be limited by the first limiting part, and has the unlocking position, the locking position and the reset position, and the third end portion is transmission-connected to the driving member; Wherein, the second control member is configured as follows: when moving from the unlocking position to the locking position, the first elastic member stores elastic potential energy and moves with the driving member to drive the first clamping member and the second clamping member to shrink the clamping cavity; when in the locking position, the track groove limits the movement of the limiting portion, the first elastic member has elastic potential energy, and the first clamping member and the second clamping member clamp the first control member; when moving from the locking position to the reset position, the first elastic member stores elastic potential energy; when moving from the reset position to the unlocking position, the first elastic member releases elastic potential energy, the driving member resets, the clamping cavity expands, and the first clamping member and the second clamping member release the first control member.

4. The biliary puncture device according to claim 3, Features: The first limiting portion is in a groove shape and includes a first track segment, a second track segment connected to the first track segment, and a third track segment connected to the second track segment and the first track segment, the first track segment includes a first starting end and a first tail end higher than the first starting end, the second track segment includes a second starting end and a second tail end higher than the second starting end, the second starting end is connected to the first tail end, and the second starting end is lower than the first tail end, the third track segment includes a third starting end and a third tail end, the third starting end is connected to the second tail end, the third tail end is connected to the middle of the first track segment or the first starting end, and the third tail end is higher than the connecting position of the first track segment; The third end portion comprises a reset column with a guide groove, a second elastic member having one end connected to the bottom of the guide groove, and a limit column having one end connected to the other end of the second elastic member, wherein a portion of the limit column is disposed within the guide groove, the reset column can slide radially along the rotation track of the second control member, and the other end of the limit column can abut against the first track segment and the second track segment; Wherein, the reset column is configured as follows: when moving from the first starting end to the first tail end under the action of external force, the limit column retracts, the second elastic member stores elastic potential energy, and the first elastic member stores elastic potential energy; when moving to the second starting end, the second elastic member releases the elastic potential energy, and the limit column extends out and is clamped at the first tail end; when moving from the second starting end to the second tail end under the action of external force, the limit column retracts, the second elastic member stores elastic potential energy, and the first elastic member stores elastic potential energy; when moving to the third starting end, the reset column moves radially along the rotation trajectory to enter the third trajectory segment, the first elastic member releases the elastic potential energy, drives the guide column to reset from the third tail end to the first trajectory segment, and resets to the first starting end; when moving from the third tail end to the first trajectory segment, the limit column extends into and is limited within the first trajectory segment.

5. The bile duct puncture device according to claim 4, Features: The third end portion further comprises a reset groove and a third elastic member radially arranged along the rotation track, one end of the third elastic member is connected to the reset groove, and the other end is connected to the reset column; Wherein, the third elastic member is configured as follows: when the reset post is located within the first trajectory segment and the second trajectory segment, the third elastic member stores elastic potential energy; when the reset post is located at the third starting end, the third elastic member releases elastic potential energy to drive the reset post to move radially along the rotation trajectory to enter the third trajectory segment; when the reset post is located at the third tail end, the third elastic member stores elastic potential energy again and enters the first trajectory segment.

6. The bile duct puncture device according to claim 2, It is characterized in that Also includes: A transmission member is connected to the driving member and the second control member, and the transmission member can drive the linear motion of the driving member through the arc motion of the second control member.

7. The bile duct puncture device according to claim 6, It is characterized in that The transmission member includes a third rotating portion, a first waist-shaped hole portion, and a second waist-shaped hole portion which are arranged in sequence, the third rotating portion is rotatably connected to the third end portion, the long axis of the first waist-shaped hole portion is arranged in the same direction as the long axis of the second waist-shaped hole, the first waist-shaped hole is rotationally limited and connected to the shell, the second waist-shaped hole portion is rotationally limited and connected to the driving member, and the driving member is linearly limited and slidably connected to the shell.

8. The biliary puncture device according to claim 1, It is characterized in that Also includes: A clamping assembly and a controller, the clamping assembly comprising a first clamping member and a second clamping member both rotatably connected to the housing, a first transmission member having one end rotatably connected to the first clamping member, a second transmission member having one end rotatably connected to the second clamping member, a driving source rotatably connected to the other ends of the first transmission member and the second transmission member, and a trigger element electrically connected to the driving source, the first clamping member and the second clamping member being arranged opposite to each other and forming a clamping cavity for clamping the first control member therebetween, the trigger element being electrically connected to the controller and being arranged at the unlocking position of the second control member; The controller is configured to receive a signal indicating that the trigger element is triggered when the second control member moves to the unlocking position, and control the driving source to drive the first clamping member and the second clamping member to clamp the first control member.

9. The biliary puncture device according to claim 1, Features: The puncture assembly also includes a control rod inserted into the connecting rod, one end of the control rod is inserted into the shell and is transmission-connected to the first end, and the other end is rotationally connected to the puncture needle, and the other end of the control rod is provided with a second rotation axis which is in the same direction as the first rotation axis, and the second rotation axis and the first rotation axis are arranged at intervals along the radial direction of the connecting rod.

10. The biliary puncture device according to claim 1, It is characterized in that Also includes: An electrical conductor wire and a third control element of an external circuit; The conductive wire is passed through the housing and is electrically connected to the puncture needle; The third control member includes a fifth end, a sixth end, and a third middle portion located between the fifth end and the sixth end, the third middle portion is rotatably connected to the housing, the fifth end is used to control the circuit connection of the conductive wire, the fifth end has an initial position and a conducting position, the sixth end can automatically reset to the initial position, and the sixth end is driven by an external force; Wherein, the third control component is configured such that: in the initial position, the circuit of the conductive wire is disconnected; and in the reset position, the circuit of the conductive wire is connected.

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