CN113616294A

CN113616294A - Puncture device, guiding device and operation puncture equipment

Info

Publication number: CN113616294A
Application number: CN202110839365.3A
Authority: CN
Inventors: 王振飞; 崔枭; 李卓
Original assignee: Beijing Zhenshi Medical Technology Co ltd
Current assignee: Shenzhen Zhenshi Medical Equipment Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2021-11-09
Anticipated expiration: 2041-07-23
Also published as: CN113616294B

Abstract

A puncture device, a guide device and a surgical puncture apparatus. The puncture device comprises a first clamping mechanism which can be opened and closed, wherein the first clamping mechanism is used for limiting the surgical needle when closed and releasing the surgical needle when opened; wherein, first fixture includes: the clamping structure and the releasing structure are arranged on the fixed clamping block; and the clamping structure is used for opening the clamping part and the clamping structure to release the surgical needle. The puncture device can quickly and timely release the surgical needle.

Description

Puncture device, guiding device and operation puncture equipment

Technical Field

The present disclosure relates to, but is not limited to, the field of medical devices, and more particularly, to a lancing device, a guide device and a surgical lancing apparatus.

Background

Tumor refers to new tissue formed by continuous malignant hyperplasia due to local tissue cell mutation under the action of various mutation promoting factors, and can be divided into benign tumor and malignant tumor according to the degree of harm to the body, wherein malignant tumor is also called cancer.

Although the tumor diseases seriously jeopardize the health and life of human beings, the discovery period, correct diagnosis mode and timely treatment of the tumor have a crucial influence on the recovery of the tumor. It can be said that the earlier the tumor is confirmed, the higher the survival rate of the patient. The gold standard for determining whether a tissue is a tumor is a pathological diagnosis by extracting a tissue at a lesion and performing a series of treatments and observations on the tissue at the lesion to determine whether the tissue is a tumor or at which stage of development of the tumor.

The needle biopsy operation is a main way to obtain pathological diagnosis, and mainly comprises the following steps:

firstly, determining the tumor position in the body of a patient through imaging scanning; then, planning an operation path and a puncture depth by a doctor, selecting a puncture point, and calibrating, disinfecting and anesthetizing outside the body of the patient; subsequently, the doctor holds the surgical needle and pierces the body of the patient to a certain depth along the previously set direction; then, performing imaging scanning again to confirm whether the surgical needle punctures the tumor, and repeating the process if the surgical needle does not puncture the tumor; after the tumor is pricked, extracting tumor tissues for pathological diagnosis; and finally, drawing out the surgical needle, disinfecting and stopping bleeding for the patient, and ending the operation.

At present, because of lacking corresponding reliable auxiliary assembly, it is internal that the puncture operation is mostly through the bare-handed operation needle of doctor with the operation needle, and the small shake of doctor's hand and patient's organism tissue can all make the operation needle deviate from predetermineeing the route in the puncture process to the resistance of operation needle, have that the puncture operation is long, and the puncture success rate is low, can't diagnose the scheduling problem to small-size tumour. Some doctors use a puncture device for puncture, but after the surgical needle is fixed on the puncture device, the puncture device cannot ensure quick and timely release of the surgical needle.

Disclosure of Invention

The embodiment of the invention provides a puncture device which can quickly and timely release a surgical needle.

The embodiment of the invention also provides a guide device and surgical puncture equipment.

The puncture device provided by the embodiment of the invention comprises a first clamping mechanism which can be opened and closed, wherein the first clamping mechanism is used for limiting the movement of the surgical needle when being closed and releasing the surgical needle when being opened; wherein the first clamping mechanism comprises: the clamping device comprises a fixed clamping block, a clamping mechanism and an unlocking mechanism, wherein the fixed clamping block is provided with the clamping mechanism and the unlocking mechanism; the surgical needle limiting device comprises a fixed clamping block, a movable clamping block and a releasing structure, wherein one end of the movable clamping block is provided with a first hinged portion, the other end of the movable clamping block is provided with a clamping portion, the first hinged portion is rotatably installed on the fixed clamping block, the clamping portion is clamped on the clamping structure and enables the movable clamping block and the fixed clamping block to surround a functional hole for limiting movement of a surgical needle, and the releasing structure is used for opening the clamping portion and the clamping structure to release the surgical needle.

In an exemplary embodiment, a side of the fixed clamping block facing the movable clamping block is provided with an accommodating cavity, and the clamping structure includes: the clamping piece is provided with a clamping part and a second hinged part, the second hinged part is rotatably arranged in the accommodating cavity, and the clamping part is clamped on the clamping part; and the first return spring is arranged between the clamping piece and the fixed clamping block and used for keeping the clamping part clamped on the clamping part.

In an exemplary embodiment, the unfreezing structure includes: the driving button is arranged on the wall of the accommodating cavity in a penetrating mode, one end, extending into the accommodating cavity, of the driving button is matched with a part, between the clamping part and the second hinged part, of the clamping piece, and the clamping piece is pushed backwards when the driving button is pressed, so that the clamping part and the clamping part are opened; and the second return spring is arranged between the driving button and the cavity wall of the accommodating cavity and is used for returning the driving button.

In an exemplary embodiment, the second hinge portion is located in a middle portion of the engaging member, the engaging portion is located at one end of the engaging member, and the other end of the engaging member is formed with a mating arm, and the releasing structure includes: a first drive motor; the transmission part is installed on the first driving motor and matched with the matching arm, the first driving motor drives the transmission part to rotate, and the transmission part extrudes the matching arm to reversely push the clamping piece, so that the clamping part and the clamping part are opened.

In an exemplary embodiment, the puncture device further includes a rotary driving mechanism for driving the surgical needle to rotate, the rotary driving mechanism includes a second driving motor and a second gear, the second gear is mounted on the second driving motor, the surgical needle is provided with a first gear, and the second gear is configured to be meshed with the first gear.

The guide device provided by the embodiment of the invention comprises a second clamping mechanism which can be opened and closed, wherein the second clamping mechanism is used for limiting the swing of the surgical needle when being closed and releasing the surgical needle when being opened; wherein, the second fixture all includes: the clamping device comprises a fixed clamping block, a clamping mechanism and an unlocking mechanism, wherein the fixed clamping block is provided with the clamping mechanism and the unlocking mechanism; the surgical needle limiting device comprises a fixed clamping block, a movable clamping block and a releasing structure, wherein one end of the movable clamping block is provided with a first hinged portion, the other end of the movable clamping block is provided with a clamping portion, the first hinged portion is rotatably installed on the fixed clamping block, the clamping portion is clamped on the clamping structure, the movable clamping block and the fixed clamping block are encircled to form a functional hole for limiting the swing of a surgical needle, and the releasing structure is used for opening the clamping portion and the clamping structure to release the surgical needle.

In an exemplary embodiment, the engaging member is further provided with a pressing arm, and the unlocking structure further includes: the contact switch is installed in the accommodating cavity and electrically connected with the first driving motor, and when the clamping portion and the clamping portion are opened, the pressing arm triggers the contact switch to act.

The invention provides a surgical puncturing device, which comprises a puncturing device and/or a guiding device.

According to the puncture device provided by the embodiment of the invention, the clamping part is clamped on the clamping structure, the surgical needle is limited in the functional hole, the surgical needle can only rotate in the functional hole and cannot move along the puncture direction relative to the functional hole, and the puncture operation can be carried out smoothly; the clamping structure and the releasing structure are matched, the clamping portion and the clamping structure can be opened by operating the releasing structure, the movable clamping block is opened on the fixed clamping block to release the surgical needle, and the surgical needle releasing process is quicker and more timely.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.

FIG. 1 is an exploded view of a surgical puncturing device in accordance with one embodiment of the present invention;

FIG. 2 is a cross-sectional view of the puncturing device of FIG. 1 in a bottom view;

FIG. 3 is a partially cross-sectional view of the lancing device of FIG. 1 in a front view;

FIG. 4 is a schematic partially cross-sectional view of a top view of the puncturing device of FIG. 1;

FIG. 5 is a schematic view of the handle of FIG. 1 in a handle attachment position;

FIG. 6 is a schematic view of the handle of FIG. 1 in a handle locked position;

FIG. 7 is a schematic structural view showing an open state of a first clamping mechanism in the puncture device shown in FIG. 1;

FIG. 8 is a schematic front view of the stopper device of FIG. 1;

FIG. 9 is a schematic cross-sectional left view of the spacing device of FIG. 1;

FIG. 10 is a partial schematic view of the stop device of FIG. 1 in a rear view, with the engagement member spaced above the stop member;

FIG. 11 is a schematic view of a portion of the stop device shown in FIG. 1 in another state of a rear view, with the engagement member abutting against the stop member;

fig. 12 is a cross-sectional view of the guide device of fig. 1 in a bottom view.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 12 is:

100, 110, 111, 112, 120, 130, mounting bracket, 131 mating part, 140, light source, 150 communication circuit board, 160 optical marker, 170 mounting seat, 200 piercing device, 210 rotation driving mechanism, 211 second driving motor, 212 second gear, 220 first clamping mechanism, 221 fixed clamping block, 2211 containing cavity, 2212 first control button, 2213 second control button, 2214 third hinge, 222 movable clamping block, 2221 first hinge, 2222 clamping part, 223 functional hole, 230 clamping structure, 231 clamping piece, 2311 clamping part, 2312 second hinge, 232 first reset spring, 240 unlocking structure, 241 driving button, 242 second reset spring, 243 first driving motor, 244 transmission piece, 250 locking mechanism, 251 driving block, 252 locking block, 253 driving mating surface, 254 third reset spring, 260 unlocking mechanism, 261 handle, 2611 unlocking portion, 2612 dodge portion, 2613 hinge hole, 262 locking mechanism, 2621 locking pin, 2622 fourth return spring, 270 fitting member, 300 guider, 310 second fixture, 311 fixed clamp splice, 3111 holds the chamber, 312 activity clamp splice, 3121 first articulated portion, 3122 joint portion, 320 block structure, 321 fastener, 3211 block portion, 3212 second articulated portion, 3213 cooperation arm, 3214 butt pressure arm, 322 first return spring, 330 unblock structure, 331 drive button, 332 second return spring, 333 first drive motor, 334 driving medium, 335 contact switch, 340 functional hole, 400 surgical needle, 410 first gear.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The surgical puncture device provided by the embodiment of the invention, as shown in fig. 1 to 12, comprises a limiting device 100, a puncture device 200 and a guiding device 300; the limiting device 100 comprises a limiting mechanism 110 and a guide rail mechanism 120; the puncture device 200 includes a rotary drive mechanism 210 and an openable and closable first holding mechanism 220, the first holding mechanism 220 being used for positioning the surgical needle 400 when closed and for releasing the surgical needle 400 when opened, the rotary drive mechanism 210 being used for driving the surgical needle 400 to rotate; the guide device 300 includes a second holding mechanism 310 which can be opened and closed, the second holding mechanism 310 is used for positioning the surgical needle 400 when closed and releasing the surgical needle 400 when opened, wherein the puncture device 200 is installed on the rail mechanism 120 and can move downwards along the rail mechanism 120 for puncture, and the limiting mechanism 110 is used for limiting the puncture depth of the puncture device 200 (namely, limiting the distance of the downward movement of the puncture device 200); the guide device 300 is mounted on the position limiting device 100 and is located in front of the puncture direction of the puncture device 200, and is used for positioning and guiding the surgical needle 400 during puncture.

In the surgical puncture device, the puncture device 200 is mounted on the guide rail mechanism 120 and can move along the guide rail mechanism 120 to puncture; the guiding device 300 is installed on the limiting device 100 and in front of the puncture direction of the puncture device 200, and is used for positioning and guiding the surgical needle 400 during puncture; the limiting mechanism 110 is used for limiting the puncture depth of the puncture device 200, ensuring the accurate puncture of the surgical needle 400 and being capable of diagnosing small tumors; the first clamping mechanism 220 limits the surgical needle 400 when closed, at the moment, the surgical needle 400 can only drive the surgical needle 400 to rotate and cannot move on the first clamping mechanism 220 through the rotary driving mechanism 210, the second clamping mechanism 310 limits the surgical needle 400 when closed, guides the surgical needle 400, and ensures that the surgical needle 400 can move along the second clamping mechanism 310 to puncture when rotating, and compared with manual puncture, the scheme can effectively shorten the puncture surgery time and improve the puncture precision; the first clamping mechanism 220 releases the surgical needle 400 when opened, and the second clamping mechanism 310 releases the surgical needle 400 when opened, so that the surgical needle 400 can be released at any time as required.

In an exemplary embodiment, as shown in fig. 2-7, the first clamping mechanism 220 includes: the fixing clamp block 221, the fixing clamp block 221 is provided with a clamping structure 230 and an unlocking structure 240 which are matched with each other; and the movable clamping block 222, one end of the movable clamping block 222 is provided with a first hinge portion 2221, the other end is provided with a clamping portion 2222, the first hinge portion 2221 is rotatably installed on the fixed clamping block 221, the clamping portion 2222 is clamped on the clamping structure 230, and the movable clamping block 222 and the fixed clamping block 221 are enclosed to form a function hole 223 for limiting the movement of the surgical needle 400, the surgical needle 400 is rotatably and fixedly arranged on the function hole 223 in a penetrating manner, the unlocking structure 240 is driven to act, and the unlocking structure 240 can open the clamping portion 2222 and the clamping structure 230 (namely, the movable clamping block 222 is opened on the fixed clamping block 221) to release the surgical needle 400.

As shown in fig. 2, the engaging structure 230 includes: the clamping piece 231 is provided with an accommodating cavity 2211 with an opening at the front part on the fixing clamping block 221, the clamping piece 231 is provided with a clamping part 2311 and a second hinged part 2312, the second hinged part 2312 is rotatably installed on the inner side surface of the accommodating cavity 2211, and the clamping part 2222 is clamped on the clamping part 2311 at the opening at the front part of the accommodating cavity 2211; and a first return spring 232 installed between the engaging member 231 and the fixing clip 221 for keeping the engaging portion 2222 engaged with the engaging portion 2311. The elastic force of the first return spring 232 may push the engaging member 231 to rotate in the forward direction, so as to keep the engaging portion 2222 engaged with the engaging portion 2311. The structure is simple, easy to realize and good in reliability.

Further, as shown in fig. 2, the unfreezing structure 240 includes: the driving button 241 is inserted into the right cavity wall of the accommodating cavity 2211, the left end of the driving button 241, which extends into the accommodating cavity 2211, is matched with a part between the clamping part 2311 and the second hinge part 2312 on the clamping part 231, and the driving button 241 is pressed leftward to push the clamping part 231 reversely (so that the clamping part 231 overcomes the elastic force of the first return spring 232 to rotate reversely), so that the clamping part 2222 and the clamping part 2311 are opened (the clamping part 2222 and the clamping part 2311 are disengaged from each other); and a second return spring 242, provided between the actuating button 241 and the wall of the housing chamber 2211, for returning the actuating button 241, namely: the pressed drive button 241 is automatically reset, and then the engaging piece 231 is also automatically reset by the first return spring 232. This structure realizes opening joint portion 2222 and clamping part 2311 through manual mode, and is easy and simple to handle.

Further, as shown in fig. 2 and 3, the unfreezing structure 240 further includes: a first drive motor 243; the driving member 244, the second hinge portion 2312 is located in the middle of the engaging member 231, the engaging portion 2311 is located at the front end of the engaging member 231, the engaging arm 2313 is formed at the rear end of the engaging member 231, the driving member 244 is installed on the first driving motor 243 and is engaged with the engaging arm 2313 on the left side of the engaging arm 2313, the first driving motor 243 drives the driving member 244 to rotate in the horizontal plane, the driving member 244 presses the engaging arm 2313 rightwards to push the engaging member 231 backwards (so that the engaging member 231 overcomes the elastic force of the first return spring 232 to rotate backwards), the engaging portion 2222 and the engaging portion 2311 are opened (the engaging portion 2222 and the engaging portion 2311 are disengaged from each other), after the engaging portion 2222 and the engaging portion 2311 are disengaged from each other, the first driving motor drives the driving member 244 to rotate backwards in the horizontal plane again, so that the driving member 244 is reset, and then the engaging member 231 automatically resets under the action of the first return spring 232. This structure realizes opening the engagement portion 2222 and the engagement portion 2311 in an electric manner, and the operation is also relatively simple. The manual mode and the electric mode can be selected according to actual needs. The driving member 244 may be a cam or a swing link, etc., all of which can achieve the purpose of the present application, and the purpose of which does not depart from the design idea of the present invention is not described herein again, and all of which shall fall within the protection scope of the present application.

Illustratively, as shown in fig. 2, 3 and 7, the rotary driving mechanism 210 includes a second driving motor 211 and a second gear 212 in the accommodating chamber 2211, the second gear 212 is mounted on the second driving motor 211, the surgical needle 400 is provided with a first gear 410, and the first gear 410 is rotatably fixed in the function hole 223 and meshed with the second gear 212. The second driving motor 211 drives the second gear 212 to rotate, and the second gear 212 drives the first gear 410 to rotate, that is, the surgical needle 400 rotates.

As shown in fig. 3 and 7, the fixing clip 221 is provided with a first control button 2212 and a second control button 2213, the first control button 2212 is used for driving the first driving motor 243 to rotate, and the second control button 2213 is used for driving the second driving motor 211 to rotate, so that the puncturing device 200 is simpler to operate and better in operability.

Illustratively, as shown in fig. 4 to 7, the puncture device 200 further includes: the locking mechanism 250 is arranged on the front side surface of the limiting device 100, the matching part 131 is arranged on the front side surface of the limiting device 100, the locking mechanism 250 is positioned on the front side surface of the matching part 131 and is matched with the matching part 131, and is used for locking the puncture device 200 at an initial position on the limiting device 100 (ensuring that the puncture device 200 starts to puncture at the initial position in each operation), and the locking mechanism 250 is matched with the limiting mechanism 110 for use, so that the puncture depth of the puncture device 200 can be better ensured, and the puncture device 200 can be prevented from moving downwards along the guide rail mechanism 120 by self, and the safety of the puncture operation can be better improved; and an unlocking mechanism 260, which is installed on the puncturing device 200 and is used for unlocking the locking mechanism 250 and the matching part 131, wherein after the locking mechanism 250 and the matching part 131 are unlocked, the puncturing device 200 can be controlled to move downwards along the guide rail mechanism 120 so as to puncture smoothly.

As shown in fig. 4 to 7, the locking mechanism 250 includes: a driving block 251 with a long strip-shaped penetrating hole, which is arranged on the puncture device 200 in a manner of moving left and right, wherein the axis of the penetrating hole is vertically crossed with the moving direction of the driving block 251 in a horizontal plane; and the locking block 252 is arranged on the penetrating hole in a penetrating way along the front-back direction and can move back and forth along the axial direction of the penetrating hole, the length of the penetrating hole in the left-right direction is larger than the width of the locking block 252 in the left-right direction, and the locking block 252 is ensured not to interfere with the driving block 251 to horizontally move left and right. The rear end of the locking block 252 facing the limiting device 100 is matched with the matching part 131, and a matched driving matching surface 253 is arranged between the driving block 251 and the locking block 252; and a third return spring 254, which is pressed between the locking block 252 and the front cavity wall of the accommodating cavity 2211, for keeping the locking block 252 engaged with the engaging portion 131; the unlocking mechanism 260 pushes the driving block 251 backward, and the locking block 252 moves forward away from the matching part 131 under the action of the driving matching surface 253 to unlock the locking block 252 and the matching part 131 (the locking block 252 and the matching part 131 are separated). The driving engagement surface 253 can be configured as two inclined surfaces or two curved surfaces, etc. that are engaged with each other, and the engagement portion 131 can be configured as an engagement groove or an engagement hole, etc. all of the purposes of the present application can be achieved, which do not depart from the design concept of the present invention and are not described herein again, and all of the purposes of the present application should fall within the protection scope of the present application.

Further, as shown in fig. 4 to 7, the unlocking mechanism 260 includes: the handle 261 is provided with an unlocking portion 2611 protruding leftwards and an avoiding portion 2612 recessed rightwards, the fixed clamp block 221 is provided with a handle assembly and disassembly position, a handle locking position and a third hinge portion 2214, the handle assembly and disassembly position and the handle locking position are spaced in the circumferential direction of the third hinge portion 2214, the unlocking portion 2611 and the avoiding portion 2612 are also spaced in the circumferential direction of the third hinge portion 2214, and the handle 261 is rotatably mounted on the third hinge portion 2214; and a locking mechanism 262 mounted on the handle 261 for locking the handle 261 in the handle locking position so that the handle 261 remains fixed in the handle locking position without being reversed to the handle attachment/detachment position. When the handle 261 is positioned at the handle mounting and dismounting position, the avoiding portion 2612 avoids the driving block 251, and the state keeps the locking block 252 matched with the matching portion 131 (the locking block 252 is still inserted into the matching portion 131); when the handle 261 is located at the handle locking position, the unlocking portion 2611 is matched with the driving block 251 (the unlocking portion 2611 pushes the driving block 251 leftward), and the locking block 252 and the matching portion 131 are unlocked in this state (the driving block 251 drives the locking block 252 to move forward, so that the rear end of the locking block 252 is pulled out of the matching portion 131 forward).

Further, as shown in fig. 2 and 4 to 7, the locking mechanism 262 includes a locking pin 2621 and a fourth return spring 2622 cooperating with the locking pin 2621, the third hinge 2214 is a hinge shaft, the handle 261 is provided with a hinge hole 2613, the hinge shaft extends into the hinge hole 2613, and the locking pin 2621 is inserted on the handle 261 in the front-rear direction beside the hinge hole 2613. When the handle 261 is located at the handle mounting and dismounting position, the locking pin 2621 is pressed to the first position, the locking pin 2621 does not lock the hinge shaft, and the hinge shaft can rotate in the hinge hole 2613 at the moment; when the handle 261 is located at the handle locking position, the locking pin 2621 is stopped at the second position by the fourth return spring 2622 and locks the hinge shaft, which is not rotatable in the hinge hole 2613. It may be that, one side of articulated shaft is provided with the bayonet socket, the side of stop pin 2621 is provided with dodges mouth and locking wall, dodge mouth and locking wall interval around the axial of locating pin, when handle 261 is located the handle position of installing and removing, stop pin 2621 presses to the first position, dodge the mouth and dodge the articulated shaft (at this moment, dodge the mouth wall of mouth and form a part of the pore wall of articulated hole 2613), when handle 261 is located the handle lock position, loosen stop pin 2621, stop at the second position at the stop of stop at the locking pin 2621 reseing under the effect of fourth reset spring 2622, the locking wall stretches into articulated hole 2613, and cooperate with the bayonet socket and block in bayonet socket department (at this moment, the locking wall is radially inwards protruding on the pore wall of articulated hole 2613). The process of installing the handle 261 is: the locking pin 2621 is pressed to avoid the hinged shaft through the avoiding opening, at this time, the handle 261 can be arranged at the handle mounting and dismounting position, the hinged shaft can be smoothly inserted into the hinged hole 2613, and the avoiding part 2612 avoids the driving block 251 and keeps the locking block 252 matched with the matching part 131; when the handle 261 is rotated to the handle locking position, the avoiding opening is opposite to the bayonet, the locking pin 2621 is released, the locking wall moves to the position before the avoiding opening under the action of the fourth return spring 2622 and is clamped in the bayonet, the handle 261 (i.e., the hinge shaft) is locked, the hinge shaft cannot rotate and disengage in the hinge hole 2613, the handle 261 is locked, and the unlocking part 2611 pushes the driving block 251 leftward to unlock the locking block 252 and the matching part 131. The process of detaching the handle 261 is opposite to the process of installing the handle 261, and will not be described herein.

The handle 261 can be detached independently for special disinfection, and other parts only need to be wiped for disinfection, so that the operation preparation process can be effectively simplified.

In an exemplary embodiment, as shown in fig. 9 to 11, the limiting mechanism 110 includes: a driving assembly 111 provided with a position detection sensor (e.g., a photoelectric switch); and the stop piece 112 is installed on the transmission assembly 111, the transmission assembly 111 is used for driving the stop piece 112 to move to a set puncture depth position along the puncture direction, the fitting piece 270 is arranged on the puncture device 200, when the puncture device 200 moves to the set puncture depth position from an initial position along the puncture direction, the fitting piece 270 abuts against the stop piece 112, the puncture device 200 is prevented from continuously puncturing forwards along the puncture direction, and therefore the puncture accuracy can be effectively improved. The fitting 270 is a baffle extending in a bent shape folded backward.

As shown in fig. 9 to 11, the transmission assembly 111 is a screw nut assembly (the stopper 112 is mounted on the nut, or may be an integral structure with the nut), a rack and pinion assembly, a sprocket chain assembly, or the like. The transmission assembly 111 may be driven manually; alternatively, the limiting mechanism 110 may further include: the third driving motor is matched with the transmission component 111 and drives the transmission component 111 to act in an electric driving mode; the purpose of the present application can also be achieved, the purpose of which does not depart from the design idea of the present invention, and the details are not described herein, and the present application shall also fall within the protection scope of the present application.

Furthermore, as shown in fig. 8 to 11, the limiting device 100 further includes a mounting frame 130, the transmission assembly 111 and the rail mechanism 120 are both fixedly mounted on the mounting frame 130, the guiding device 300 may be detachably mounted on the mounting frame 130, and the engaging portion 131 is located at an upper portion of a front side surface of the mounting frame 130. The fixing clip 221 is provided with a fitting groove, and the fixing clip 221 is mounted on the rail mechanism 120 so as to be movable up and down through the fitting groove.

Further, as shown in fig. 9, along the puncture direction, the front end of the mounting rack 130 is provided with an identifiable light-gathering light source 140, when the limiting device 100 moves to a set distance from the puncture position, light emitted by the light-gathering light source 140 is set to irradiate the puncture position for an operator to identify the puncture position, so that the puncture position can be wiped and disinfected more conveniently, and after the puncture position is wiped and disinfected, the surgical needle is stopped at the puncture position to prepare for the puncture operation. The light condensing source 140 is provided as a laser emitter (which may be an electro-optical switch) that is inclined from top to bottom toward the surgical needle 400 (inclined from top to bottom toward the front). The mounting frame 130 is further provided with a communication circuit board 150, optical markers 160 and a mounting base 170 connected with the six-axis mechanical arm, the communication circuit board 150 is communicated with a control host, the optical markers 160 are provided with a plurality of reflective balls, and the plurality of optical balls are used for assisting in determining the spatial position of the limiting device 100.

In an exemplary embodiment, as shown in fig. 12, the second clamping mechanism 310 also includes: the fixed clamping block 311 is provided with a clamping structure 320 and an unlocking structure 330 which are matched with each other; and the movable clamping block 312, one end of the movable clamping block 312 is provided with a first hinge portion 3121, the other end is provided with a clamping portion 3122, the first hinge portion 3121 is rotatably installed on the fixed clamping block 311, the clamping portion 3122 is clamped on the clamping structure 320, and the movable clamping block 312 and the fixed clamping block 311 enclose a function hole 340 (which may be a round hole) for limiting the swing of the surgical needle 400, a needle head at the lower end of the surgical needle 400 is rotatably penetrated on the function hole 340, the function hole 340 positions and guides the surgical needle 400, and drives the unlocking structure 330 to act, and the unlocking structure 330 can open the clamping portion 3122 and the clamping structure 320 (i.e., the movable clamping block 312 is opened on the fixed clamping block 311) to release the needle head of the surgical needle 400.

As shown in fig. 12, the engaging structure 320 includes: the clamping piece 321 is provided with an accommodating cavity 3111 with an opening at the front part on the fixed clamping block 311, the clamping piece 321 is provided with a clamping part 3211 and a second hinged part 3212, the second hinged part 3212 is rotatably installed on the inner side surface of the accommodating cavity 3111, and the clamping part 3122 is clamped on the clamping part 3211 at the opening at the front part of the accommodating cavity 3111; and a first return spring 322 installed between the engaging member 321 and the fixed block 311 for keeping the engaging portion 3122 engaged with the engaging portion 3211. The elastic force of the first return spring 322 may push the engaging member 321 to rotate in the forward direction, so as to keep the snap portion 3122 snapped on the engaging portion 3211. The structure is simple, easy to realize and good in reliability.

Further, as shown in fig. 12, the unfreezing structure 330 includes: the driving button 331 is mounted on the right cavity wall of the accommodating cavity 3111 in a penetrating manner, the left end of the driving button 331, which extends into the accommodating cavity 3111, is matched with a part between the clamping portion 3211 and the second hinge portion 3212 on the clamping member 321, and the driving button 331 is pressed leftward to push the clamping member 321 reversely (so that the clamping member 321 overcomes the elastic force of the first return spring 322 to rotate reversely), so that the clamping portion 3122 and the clamping portion 3211 are opened (the clamping portion 3122 and the clamping portion 3211 are disengaged from each other); and a second return spring 332, provided between the actuating button 331 and a wall of the housing chamber 3111, for returning the actuating button 331, that is: the pressed drive button 331 is automatically reset, and the rear engaging piece 321 is also automatically reset by the first return spring 322. This structure realizes opening joint portion 3122 and block 3211 through manual mode, and is easy and simple to handle.

Further, as shown in fig. 12, the unfreezing structure 330 further includes: a first drive motor 333; the driving member 334, the second hinge portion 3212 is located in the middle of the engaging member 321, the engaging portion 3211 is located at the front end of the engaging member 321, a mating arm 3213 is formed at the rear end of the engaging member 321, the driving member 334 is installed on the first driving motor 333 and is mated with the mating arm 3213 on the left side of the mating arm 3213, the first driving motor 333 drives the driving member 334 to rotate in the horizontal plane, the driving member 334 presses the mating arm 3213 to the right to push the engaging member 321 reversely (so that the engaging member 321 overcomes the elastic force of the first return spring 322 to rotate reversely), so as to open the snap portion 3122 and the snap portion 3211 (the snap portion 3122 and the snap portion 3211 are disengaged from each other), after the snap portion 3122 and the snap portion 3211 are disengaged from each other, the first driving motor drives the driving member 334 to rotate reversely in the horizontal plane again, so that the driving member 334 is reset, and the rear engaging member 321 is also automatically reset under the action of the first return spring 322. This structure realizes opening the snap portion 3122 and the engaging portion 3211 by an electric method, and the operation is also simple. The manual mode and the electric mode can be selected according to the requirement. The driving member 334 may be a cam or a swing link, etc., all of which can achieve the purpose of the present application, and the purpose of which does not depart from the design idea of the present invention, and therefore, the details thereof are not described herein again, and all of which shall fall within the protection scope of the present application.

Still further, as shown in fig. 12, the unfreezing structure 330 further includes: contact switch 335, install in holding chamber 3111, and be connected with first driving motor 243 and first driving motor 333 electricity, still be provided with on the fastener 321 and support pressure arm 3214, when joint portion 3122 and joint portion 3211 open, support pressure arm 3214 and trigger contact switch 335 action, control first driving motor 243 and first driving motor 333 and all delay and stop, action unanimous when can guarantee better that first driving motor 243 and first driving motor 333 open, guarantee that movable clamp splice 222 and movable clamp splice 312 open in step. The first control button 2212 may be configured to drive the first driving motor 243 and the first driving motor 333 to rotate simultaneously.

In summary, in the surgical puncturing device provided in the embodiments of the present invention, the puncturing device is mounted on the guide rail mechanism and can move along the guide rail mechanism to perform puncturing; the guiding device is arranged on the limiting device and is positioned in front of the puncture direction of the puncture device and used for positioning and guiding the surgical needle during puncture; the limiting mechanism is used for limiting the puncture depth of the puncture device, so that accurate puncture of the surgical needle is ensured, and the diagnosis of small tumors can be met; the first clamping mechanism limits the surgical needle when closed, the surgical needle can only be driven to rotate and cannot move by the rotary driving mechanism on the first clamping mechanism, the second clamping mechanism limits the surgical needle when closed, the surgical needle is guided, and the surgical needle can move to puncture when rotated; the first clamping mechanism releases the surgical needle when being opened, the second clamping mechanism releases the surgical needle when being opened, and the surgical needle can be released at any time according to requirements.

In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "mouth" structure ", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the structures referred to have specific orientations, are configured and operated in specific orientations, and thus, are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, or may be connected through two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A puncture device, characterized by comprising a first clamping mechanism which can be opened and closed, the first clamping mechanism is used for limiting the movement of a surgical needle when being closed and used for releasing the surgical needle when being opened; wherein the first clamping mechanism comprises:

the clamping device comprises a fixed clamping block, a clamping mechanism and an unlocking mechanism, wherein the fixed clamping block is provided with the clamping mechanism and the unlocking mechanism; and

the surgical needle limiting device comprises a movable clamping block, wherein one end of the movable clamping block is provided with a first hinged portion, the other end of the movable clamping block is provided with a clamping portion, the first hinged portion is rotatably installed on a fixed clamping block, the clamping portion is clamped on a clamping structure and enables the movable clamping block and the fixed clamping block to surround a functional hole for limiting movement of a surgical needle, and a clamping releasing structure is used for opening the clamping portion and the clamping structure to release the surgical needle.

2. The lancing device of claim 1, wherein the fixed block is provided with a receiving cavity on a side facing the movable block, and the engaging structure comprises:

the clamping piece is provided with a clamping part and a second hinged part, the second hinged part is rotatably arranged in the accommodating cavity, and the clamping part is clamped on the clamping part; and

the first return spring is arranged between the clamping piece and the fixed clamping block and used for keeping the clamping part clamped on the clamping part.

3. The lancing device of claim 2, wherein the unlatching structure comprises:

the driving button is arranged on the wall of the accommodating cavity in a penetrating mode, one end, extending into the accommodating cavity, of the driving button is matched with a part, between the clamping part and the second hinged part, of the clamping piece, and the clamping piece is pushed backwards when the driving button is pressed, so that the clamping part and the clamping part are opened; and

and the second return spring is arranged between the driving button and the cavity wall of the accommodating cavity and is used for returning the driving button.

4. The lancing device of claim 2, wherein the second hinge is located in a middle portion of the catch, the catch is located at one end of the catch, the other end of the catch is formed with an engagement arm, and the unlatching structure comprises:

a first drive motor;

the transmission part is installed on the first driving motor and matched with the matching arm, the first driving motor drives the transmission part to rotate, and the transmission part extrudes the matching arm to reversely push the clamping piece, so that the clamping part and the clamping part are opened.

5. The lancing device of any one of claims 1 to 4, further comprising a rotational drive mechanism for driving rotation of the surgical needle, the rotational drive mechanism comprising a second drive motor and a second gear, the second gear being mounted on the second drive motor, the surgical needle having a first gear disposed thereon, the first gear being rotatably secured within the functional aperture, the second gear being configured to mesh with the first gear.

6. A guide device comprising a second clamp mechanism openable and closable for restricting oscillation of a surgical needle when closed, for releasing the surgical needle when open; wherein, the second fixture all includes:

the surgical needle limiting clamp comprises a movable clamping block, wherein one end of the movable clamping block is provided with a first hinged portion, the other end of the movable clamping block is provided with a clamping portion, the first hinged portion is rotatably installed on a fixed clamping block, the clamping portion is clamped on a clamping structure and enables the movable clamping block and the fixed clamping block to surround a functional hole for limiting the swing of a surgical needle, and a clamping releasing structure is used for opening the clamping portion and the clamping structure to release the surgical needle.

7. The guide device of claim 6, wherein the fixed clamping block is provided with a receiving cavity on one side facing the movable clamping block, and the clamping structure comprises:

8. The guide device of claim 7, wherein the unfreezing structure comprises:

9. The guide device of claim 7, wherein the second hinge portion is located at a middle portion of the catch member, the catch portion is located at one end of the catch member, the other end of the catch member is formed with an engagement arm, and the unlatching structure includes:

a first drive motor;

10. The guide device of claim 9, wherein the engaging member further comprises a pressing arm, and the unlocking structure further comprises:

the contact switch is installed in the accommodating cavity and electrically connected with the first driving motor, and when the clamping portion and the clamping portion are opened, the pressing arm triggers the contact switch to act.

11. A surgical puncturing device comprising a puncturing device as claimed in any one of claims 1 to 5 and/or a guiding device as claimed in any one of claims 6 to 10.