Auxiliary mechanism of a living body sampling device

Abstract

The present invention discloses an auxiliary mechanism of a living body sampling device, comprising a support frame, on which a positioning mechanism for placing an operating part of the sampling device, a driving mechanism for driving the operating part, and a control unit are provided, wherein the control unit is electrically connected to the driving mechanism. The auxiliary mechanism of the living body sampling device disclosed by the present invention can realize automatic control of the working part of the sampling device to automatically extend or close or open and close through the control unit, so that when a doctor performs an endoscopic operation, the doctor can perform living body sampling independently without the cooperation of special medical staff.

Description

Technical Field

[0001] The invention relates to the technical field of living body sampling, in particular to an auxiliary mechanism of a living body sampling device. Background Art

[0002] With the development of modern science and technology, endoscopes have been completely reformed and optical fibers have been used. In 1964, Japan successfully developed a biopsy forceps device for fiber endoscopes, which can obtain appropriate pathological samples with low risk. Endoscopic examination in the modern sense has gradually taken shape with the realization of optical fiber endoscopes. In November 2002, the world's first "high-definition endoscope system" was born, and the concept of endoscopes has changed greatly. It condenses cutting-edge imaging technology, and the image accuracy it provides makes it possible to diagnose extremely small lesions.

[0003] However, when a biopsy operation is needed under the current endoscope, not only the biopsy forceps must be taken out, but also the cooperation of two people is required. That is, when the doctor is performing an endoscopic examination, a special medical staff needs to be deployed nearby to assist the doctor in operating the biopsy device. During the endoscopic examination, if multiple biopsies are required, the biopsy operator cannot leave, resulting in a waste of human resources and reduced clinical efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide an auxiliary mechanism for endoscopic examination, which can realize automatic control of the working state of the blade of the sampling device through a control unit, and can perform living body sampling independently without the cooperation of special medical staff when the doctor performs endoscopic operation.

[0005] The technical solution adopted by the present invention is: to provide an auxiliary mechanism of a living body sampling device, including a support frame, on which a positioning mechanism for placing an operating part on the sampling device, a driving mechanism for driving the operating part to work, and a control unit are provided, and the control unit is electrically connected to the driving mechanism.

[0006] Compared with the prior art, the present invention has the following advantages:

[0007] In the structure of the present invention, a corresponding support frame is used as a support mechanism, and a positioning mechanism is arranged on the support mechanism, and the positioning mechanism is used to install the sampling device required in the biopsy process, specifically a biopsy forceps or an electric knife; the support frame is also provided with a corresponding driving mechanism to drive the operating part of the biopsy device to work, so as to realize the opening and closing of the chuck of the biopsy forceps or the extension and retraction of the blade head of the electric knife; the support frame is also provided with a control unit, and during the doctor's endoscopic examination, the control unit can be operated with one hand, and the control unit controls the relevant driving mechanism to drive the blade head of the sampling device to automatically extend or open and close, so that living body sampling can be performed independently without the cooperation of special medical staff. The structure is simple, the operation is convenient, and the efficiency of endoscopic examination is effectively improved. In addition, the cooperation personnel are liberated, and human resources are saved.

[0008] Furthermore, the positioning mechanism includes a platform, and the platform is connected to the support frame; the operating part of the sampling device is positioned on the platform.

[0009] Furthermore, the platform includes a mounting box, the mounting box is connected to the upper end of the support frame, the operating part is positioned on the mounting box, and the driving mechanism is arranged in the inner cavity of the mounting box. This structure makes full use of the inner space of the mounting box, making the overall structure beautiful in appearance.

[0010] As an improvement, the operating part includes a fixed handle and a movable handle; a first limiting part and a second limiting part that can slide along the length direction of the installation box are provided on the outside of the installation box; the fixed handle cooperates with the first limiting part, one end of the second limiting part cooperates with the movable handle, and the other end of the second limiting part is connected to the driving mechanism.

[0011] Further improved, the driving mechanism includes a connecting piece slidably arranged on the installation box and a driving component that causes the connecting piece to move, and the driving component is connected to the control unit signal; a slide groove communicating with the inside and outside is provided on the shell of the installation box, and one end of the connecting piece is slidably inserted into the slide groove; and one end of the connecting piece passing through the installation box is connected to the second limiting portion, and the other end of the connecting piece is connected to the driving component.

[0012] As a preferred structure, the driving assembly includes a fixed seat, on which a lead screw and a driving motor are provided; the lead screw extends along the length direction of the installation box, and the lead screw is transmission-connected to the driving motor; a lead screw nut is screwed on the lead screw, and one end of the connecting piece located inside the installation box is connected to the lead screw nut.

[0013] As another preferred structure, the driving assembly includes a driving cylinder, and one end of the connecting member located inside the installation box is connected to the piston rod of the driving cylinder. The driving cylinder is directly used to drive the reciprocating motion of the connecting member, and the structure is simple.

[0014] As an improvement, a travel limit module is further provided in the installation box to limit the sliding travel of the connecting piece. By setting a corresponding travel limit module, the movable travel of the connecting piece can be controlled, thereby achieving accurate control of the movable handle travel and improving the control accuracy of the cutter head of the sampling device.

[0015] In a further improvement, the support frame includes a connecting rod, a connecting block is provided at the lower end of the connecting rod, the axial length of the connecting rod is adjustable, and the connecting rod is rotatable along the circumferential direction. The connecting rod can be adjusted along the axial direction and the circumferential direction, so that the positioning mechanism can be adjusted in multiple dimensions according to the requirements of the inspection position, thereby improving the accuracy of the operation position.

[0016] The improvement further includes a power control box, in which a PLC controller is arranged, and the PLC controller is electrically connected to the driving mechanism; a battery is also arranged in the power control box. The driving mechanism is controlled by the PLC controller, and the control is accurate and convenient; and in order to realize the emergency use of power failure during the inspection, a corresponding battery is added to the power control box for power storage and backup, so that the power cord does not need to be plugged in during the biopsy process, reducing the interference of redundant plug-in lines during the working process and improving the convenience during work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a living body sampling device used for endoscopic examination in the present invention.

[0018] Figure 2 It is a schematic structural diagram from another angle of the living body sampling device used for endoscopic examination in the present invention.

[0019] Figure 3 It is a schematic diagram of the positioning mechanism of the present invention without the upper shell.

[0020] Figure 4 It is a schematic diagram of the positioning mechanism in the present invention from another angle.

[0021] Figure 5 It is a structural diagram of the biopsy forceps installed on the positioning mechanism in the present invention.

[0022] Figure 6 It is a structural diagram of the positioning mechanism installed in the electric knife of the present invention.

[0023] Among them, 100-sampling device, 100.1-fixed handle, 100.2-movable handle, 100.3-extension line;

[0024] 1-support frame, 1.1-connecting rod, 1.2-connecting block, 2-platform, 2.1-installation box, 3-connecting piece, 4-slide groove, 5-fixed seat, 6-screw, 7-drive motor, 8-screw nut, 9-signal probe, 10-signal sensing module, 11-power control box, 12-first connecting block, 12.1-first slot, 13-second connecting block, 13.1-second slot, 14-limit wrench, 14.1-limit protrusion, 15-limit assembly. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] In the description of the present invention, it should be noted that the terms "upper end", "lower end", "outer side", "external", "inner" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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. In addition, the terms "first" and "second" in the description are only for the convenience of distinction and understanding, and have no specific or limiting meaning.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figure 1 As shown, the present invention provides an auxiliary mechanism for a living body sampling device, including a support frame 1, wherein the upper end of the support frame 1 is provided with a positioning mechanism for placing an operating part on the sampling device 100, a driving mechanism for driving the operating part to work, and a control unit, and the control unit is electrically connected to the driving mechanism and a power supply. Specifically, the sampling device in this embodiment can be a biopsy forceps or an electric knife; the operation of the operating part here is to realize the extension or opening and closing of the blade of the sampling device. When the sampling device is a biopsy forceps, the operation of the blade is the opening and closing of the blade; when the sampling device is an electric knife, the operation of the blade is the extension and contraction of the blade.

[0029] Specifically, the support frame 1 includes a connecting rod 1.1, and a connecting block 1.2 is provided at the lower end of the connecting rod 1.1. The connecting block 1.2 can be directly positioned on the ground, or fixed to other supporting equipment by bolts. In the present embodiment, the connecting block 1.2 is used to be connected and fixed to the main unit of the gastroscope; in addition, the connecting rod 1.1 in this structure can be adjusted in multiple dimensions along the axial and circumferential directions, that is, the connecting rod 1.1 can be adjusted in length along the axial direction, and the connecting rod 1.1 can also be rotated at any angle along the circumferential direction to achieve the position adjustment of the positioning mechanism.

[0030] More specifically, the connecting rod 1.1 can be a rocker adjustment rod, a bendable metal tube, or other structures formed by hinged connection of multiple connecting rods, and each hinged part can be adjusted as required to adjust the height or angle of the positioning mechanism. Specifically, a universal joint can be provided at each connection point to facilitate adjustment in various dimensions.

[0031] In addition, in other embodiments, the height of the connecting rod 1.1 can also be automatically adjusted by induction through a sensing component to improve automation and intelligent control.

[0032] Specifically, the positioning mechanism includes a platform 2 connected to the support frame 1, and the operating part of the sampling device 100 is positioned on the platform 2. The position of the platform 2 can be adjusted by adjusting the support frame 1, so that the sampling device 100 can be used conveniently.

[0033] like Figure 3 As shown, more specifically, the platform 2 includes a mounting box 2.1, which is connected to the upper end of the support frame 1, the operating part is positioned on the outer wall of the mounting box 2.1, and the driving mechanism is arranged in the inner cavity of the mounting box 2.1, and the mounting box 2.1 includes a split upper and lower shell structure, and the two split shells are connected as a whole by bolts, and an installation chamber for installing the driving structure is formed therein; this structure makes full use of the inner cavity volume of the mounting box 2.1, realizes the hidden installation of the driving mechanism, and improves the appearance of the positioning mechanism.

[0034] In addition, the operating part includes a fixed handle 100.1 and a movable handle 100.2; the outer side of the installation box 2.1 is provided with a first limiting part and a second limiting part that can slide along the length direction of the installation box 2.1; wherein the fixed handle 100.1 cooperates with the first limiting part, one end of the second limiting part cooperates with the movable handle 100.2, and the other end of the second limiting part is connected to the driving mechanism. During operation, when the driving mechanism drives the second limiting part to reciprocate along the length direction of the installation box 2.1, the movable handle 100.2 and the fixed handle 100.1 realize reciprocating motion, thereby realizing the telescopic motion or opening and closing action of the blade of the sampling device 100.

[0035] Specifically, the sampling device 100 is a disposable biopsy forceps or a simple electric knife. Figure 5 As shown, when the sampling device 100 is a biopsy forceps, the driving mechanism drives the opening or closing of the end clamp to achieve the sampling of living tissue; Figure 6 As shown, when the sampling device 100 is an electric knife structure, the driving mechanism is used to drive the extension and retraction of the electric knife head to achieve the cutting and electrocoagulation of living tissue. In addition, when the sampling device 100 is an electric knife, a connecting wire is provided on its end structure to be electrically connected to the electric knife main unit to realize the power supply of the electric knife, and has the function of synchronous electrocoagulation during cutting.

[0036] More specifically, Figure 3 As shown, the first limiting portion includes a first connecting block 12 protruding from the installation box 2.1, and the first connecting block 12 is provided with a first slot 12.1 for accommodating the fixed handle 100.1; the second limiting portion includes a second connecting block 13 protruding from the installation box 2.1, and the second connecting block 13 is provided with a second slot 13.1 for accommodating the movable handle 100.2; specifically, as Figure 3 , 5 As shown in , 6, a limit wrench 14 is rotatably provided at a position near the first slot 12.1 on the first connecting block 12 and a position near the second slot 13.1 on the second connecting block 13, and a plurality of limit protrusions 14.1 are provided at one end of the limit wrench 14 near the rotation connection point to increase friction and improve the stability of the limit position of the limit wrench 14 and the corresponding handle on the sampling device 100. The sampling device can be clamped or loosened by rotating the limit wrench 14, which facilitates disassembly and assembly and improves installation efficiency.

[0037] More specifically, the first connecting block 12 and the second connecting block 13 can be an integral structure and integrally molded on the upper shell or the lower shell; or they can be a split structure divided into upper and lower parts, and the divided upper and lower parts are respectively molded on the upper and lower shells of the installation box 2.1, and the corresponding connecting blocks are installed synchronously with the installation of the installation box 2.1.

[0038] In addition, such as Figure 6 As shown, a limiting component 15 for limiting and fixing the extension line 100.3 of the sampling device 100 is also provided on the side wall of the installation box 2.1. Specifically, the limiting component 15 is a limiting block integrally formed on the outer side wall of the installation box 2.1, and a corresponding limiting groove is provided on the limiting block. Before the biopsy begins, it is used to limit and fix the extension line 100.3 of the sampling device 100 to provide convenience for subsequent use.

[0039] The driving mechanism includes a connecting member 3 slidably arranged on the installation box 2.1 and a driving component for driving the connecting member 3 to move, such as Figure 3, 4 As shown, a slide groove 4 communicating with the inside and outside is provided on the lower shell of the installation box 2.1, and one end of the connecting member 3 is slidably inserted into the slide groove 4; one end of the connecting member 3 passing through the installation box 2.1 is connected to the second limiting portion, and the other end of the connecting member 3 is connected to the driving component. The driving component is controlled by the control unit to operate, thereby realizing the sliding of the connecting member 3, driving the sliding of the second limiting portion, and realizing the operation (extension or opening and closing) of the cutting head of the sampling device 100.

[0040] In one embodiment, if Figure 3 As shown, the driving assembly includes a fixed seat 5, on which a lead screw 6 and a driving motor 7 are provided; the lead screw 6 extends along the length direction of the installation box 2.1, and the lead screw 6 is in transmission connection with the driving motor 7, and the lead screw 6 is driven to rotate by the driving motor 7. In addition, a lead screw nut 8 is screwed on the lead screw 6, and one end of the connecting member 3 located inside the installation box 2.1 is connected to the lead screw nut 8. The control unit controls the driving motor 7 to operate, driving the lead screw 6 to rotate, thereby driving the lead screw nut 8 to slide horizontally, driving the connecting member 3 together with the second limiting portion to move linearly, realizing relative sliding between the movable handle 100.2 and the fixed handle 100.1, and finally realizing the corresponding action of the cutter head of the sampling device 100.

[0041] In another embodiment, the driving assembly includes a driving cylinder (not shown in the figure), which is arranged along the length direction parallel to the installation box 2.1; and one end of the connecting member 3 located inside the installation box 2.1 is connected to the piston rod of the driving cylinder. Specifically, the driving cylinder can be a pneumatic cylinder, a hydraulic cylinder or an electric cylinder, and in order to make the control of the driving cylinder more precise, a corresponding electromagnetic control valve is connected to the driving cylinder.

[0042] In other embodiments, the driving component can also be a linear motor, which directly drives the connecting member 3 to move horizontally; or it can be a driving structure composed of a motor, a gear and a rack, in which the gear is connected to the output shaft of the motor, and the rack is connected to the connecting member 3. The motor drives the gear to rotate, thereby driving the rack to slide horizontally to achieve horizontal movement of the connecting member 3.

[0043] In addition, since there are two types of knives used alternately in the sampling device 100, namely, biopsy forceps and electric knife, the movable strokes between their handles are different, and therefore two different control programs are required for the two types of knives. Correspondingly, the stroke positions of the two knives also need to be limited accordingly, that is, a stroke limit module is also provided in the installation box 2 to limit the movement stroke of the connecting member 3, thereby controlling the movement distance between the movable handle 100.2 and the fixed handle 100.1.

[0044] In this embodiment, the travel limit module includes a signal probe 9 arranged at one end of the connecting member 3 located inside the installation box 2.1 and a plurality of signal sensing modules 10 arranged on the installation box 2.1 along its length direction. The signal sensing module 10 is connected to the control unit signal so that the connecting member 3 can stop at any set position along the slide groove 4. As the connecting member 3 slides, the signal probe 9 will pass through different signal sensing modules 10, and the signal sensing module 10 in this device is divided into two parts, which are respectively used to correspond to the specified travel of the sensing control limit biopsy forceps or the electric knife.

[0045] In this embodiment, the auxiliary structure of the sampling device also includes a power control box 11, in which a PLC controller is arranged, and the PLC controller is electrically connected to the driving mechanism. In addition, a battery is also arranged in the power control box 11, and the battery can be used in an emergency after being set up in case of power failure; a power cord is arranged outside the power control box 11, and the power cord is electrically connected to the battery, and a corresponding power switch, a power indicator light, and a charging indicator light are arranged on the housing of the power control box 11, so as to observe whether the battery has power and whether it needs to be charged.

[0046] Of course, in other embodiments, if a single-chip microcomputer is used for control, then the single-chip microcomputer only needs to be installed in the installation box 2.1, and then the power supply part is directly connected to the external power supply through a plug, and there is no need to add a power control box.

[0047] In this embodiment, in order to make the entire device clean and tidy without excessive line interference, the lines between the drive mechanism and the power control box 11 are all laid in the inner cavity of the support rod, with concealed wiring.

[0048] The above is an explanation of the preferred embodiments of the present invention, but it cannot be understood as a limitation of the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the scope of protection of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. An auxiliary mechanism of a living body sampling device, characterized in that: The invention comprises a support frame (1), wherein a positioning mechanism for placing an operating part of a sampling device (100), a driving mechanism for driving the operating part and a control unit are arranged on the support frame (1), wherein the control unit is electrically connected to the driving mechanism, and the positioning mechanism comprises a platform (2), wherein the platform (2) is connected to the support frame (1); the operating part of the sampling device (100) is positioned on the platform (2), wherein the platform (2) comprises an installation box (2.1), wherein the installation box (2.1) is connected to the upper end of the support frame (1), wherein the operating part is positioned on the installation box (2.1), and wherein the driving mechanism is arranged inside the installation box (2.1). The invention relates to a device for mounting a mounting box, wherein the operating part comprises a fixed handle (100.1) and a movable handle (100.2); a first limiting part and a second limiting part which can slide along the length direction of the mounting box (2.1) are provided on the outer side of the mounting box (2.1); the first limiting part comprises a first connecting block (12) installed on the outer wall of the mounting box (2.1), and a first card slot (12.1) is provided on the first connecting block (12); the fixed handle (100.1) is matched in the first card slot (12.1), one end of the second limiting part is matched with the movable handle (100.2), and the other end of the second limiting part is connected to the driving mechanism.

2. The auxiliary mechanism of the living body sampling device according to claim 1, characterized in that: The driving mechanism comprises a connecting piece (3) slidably arranged on the installation box (2.1) and a driving component for driving the connecting piece (3) to move, wherein the driving component is connected to a control unit by signal; a slide groove (4) communicating with the inside and the outside is provided on the shell of the installation box (2.1), and one end of the connecting piece (3) is slidably arranged in the slide groove (4); and one end of the connecting piece (3) passing through the installation box (2.1) is connected to the second limiting portion, and the other end of the connecting piece (3) is connected to the driving component.

3. The auxiliary mechanism of the living body sampling device according to claim 2, characterized in that: The driving assembly comprises a fixing seat (5), on which a lead screw (6) and a driving motor (7) are provided; the lead screw (6) extends along the length direction of the installation box (2.1), and the lead screw (6) is drivingly connected to the driving motor (7); a lead screw nut (8) is screwed onto the lead screw (6), and one end of the connecting member (3) located inside the installation box (2.1) is connected to the lead screw nut (8).

4. The auxiliary mechanism of the living body sampling device according to claim 2, characterized in that: The driving assembly comprises a driving cylinder, and one end of the connecting member (3) located inside the installation box (2.1) is connected to the piston rod of the driving cylinder.

5. The auxiliary mechanism of the living body sampling device according to claim 3 or 4, characterized in that: A travel limit module is also provided in the installation box, for limiting the sliding travel of the connecting member (3).

6. The auxiliary mechanism of the living body sampling device according to claim 1, characterized in that: The support frame (1) comprises a connecting rod (1.1), a connecting block (1.2) is provided at the lower end of the connecting rod (1.1), the axial length of the connecting rod (1.1) is adjustable, and the connecting rod (1.1) is rotatable in the circumferential direction.

7. The auxiliary mechanism of the living body sampling device according to claim 1, characterized in that: It also comprises a power control box (11), wherein a PLC controller is arranged in the power control box (11), and the PLC controller is electrically connected to the driving mechanism; and a storage battery is also arranged in the power control box (11).

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