CN117357214B - Adjustable endoscopic surgical forceps - Google Patents

Abstract

The invention relates to the technical field of medical appliances, in particular to an adjustable endoscopic surgical clamp which comprises a clamp rod, wherein a clamp holder is arranged at the front end of the clamp rod, a handle is arranged at the rear end of the clamp rod, the clamp holder comprises a cylindrical mounting seat, a cylindrical rotating seat is arranged at the front end of the mounting seat, the rear end of the mounting seat is fixedly connected with the clamp rod, a clamping body is integrally formed at the front end of the rotating seat, a clamping plate is rotatably arranged on one surface of the clamping body, and a cutting shear is arranged on the other surface of the clamping body. The forceps clamp is provided with the clamping plate and the cutting scissors, wherein the clamping plate is used for clamping suture lines or focus tissues of a patient, and the cutting scissors can cut off the corresponding suture lines or tissues, so that surgical forceps do not need to be frequently replaced, the surgical time is shortened, and the surgical efficiency is improved.

Description

Adjustable endoscopic surgical forceps

Technical Field

The invention relates to the technical field of medical appliances, in particular to an adjustable endoscopic surgical forceps.

Background

Currently, in minimally invasive laparoscopic surgery, when a focus is found to be resected in the abdominal cavity of a human body, the processes of searching, separating, clamping, resecting, and electrocoagulation hemostasis and the like are needed for tissue and organs in the abdominal cavity, and in the surgical process, endoscopic forceps are needed.

The traditional endoscopic surgical forceps generally comprise a forceps rod, a forceps holder arranged at the front end of the forceps rod and a handle arranged at the rear end of the forceps rod, wherein the forceps rod is of a hollow tubular structure, a guide wire is inserted into the forceps rod, the front end of the guide wire is connected with the forceps holder, and the opening and closing of the forceps holder can be controlled through the front-back stretching of the guide wire; the handle is divided into a fixed handle and a movable handle, and a user can control the guide wire to move back and forth by pinching the movable handle, so that the opening and closing of the forceps holder can be controlled remotely.

In the minimally invasive laparoscopic surgery process, a plurality of small openings are generally cut on the skin of a patient, then two surgical forceps are stretched into the patient, and a main doctor holds the two surgical forceps by two hands respectively to separate, clamp and cut the two surgical forceps; the types of surgical forceps generally include separating forceps, clamping forceps, needle holding forceps, direct cutting forceps and the like, and when the main doctor needs to perform corresponding operation steps, the corresponding surgical forceps need to be replaced. For example, when a surgeon is performing a suturing procedure, it is necessary to use needle holding forceps for pinching the suture needle and penetrating the patient's tissue with the suture needle, and a grasping forceps for pinching one end of the suture thread and assisting the needle holding forceps in tying knots; when knotting is completed, the redundant suture is cut off, and at the moment, a doctor needs to withdraw the clamping forceps and replace the straight cutting forceps to extend into the patient, so that the suture is cut off. The surgical forceps need to be replaced in the process, so that the surgical time is prolonged, and the surgical efficiency is required to be improved. For this reason, we propose an adjustable endoscopic forceps to solve the above-mentioned drawbacks well.

Disclosure of Invention

The invention aims to provide an adjustable endoscopic surgical forceps which is used for solving the problems in the background technology.

The invention is realized by the following technical scheme:

the adjustable endoscopic surgical forceps comprise a forceps rod, wherein the front end of the forceps rod is provided with a forceps holder, the rear end of the forceps rod is provided with a handle, the forceps holder comprises a cylindrical installation seat, the front end of the installation seat is provided with a cylindrical rotating seat, the rear end of the installation seat is fixedly connected with the forceps rod, the front end of the rotating seat is integrally formed with a clamping body, one surface of the clamping body is rotationally provided with a clamping plate, the other surface of the clamping body is provided with a cutting shear, the front end of the clamping body is provided with a cutting opening at the middle part, and the middle part of the clamping plate is also provided with an adapting opening which is matched with the cutting opening;

the front end of the rotating seat is also provided with a first through hole and a second through hole in a penetrating way, a first push rod and a second push rod are movably inserted into the first through hole and the second through hole respectively, iron sheets are fixedly arranged at the rear ends of the first push rod and the second push rod, the first push rod can control the clamping plate to rotate through front-back expansion, and the second push rod can control the cutting shear to open and close through front-back expansion; the front end of the guide rod penetrates through the mounting seat and extends into the rotating seat, the front end of the guide rod is also provided with a matching disc, and a first magnetic block for adsorbing the iron sheet is also embedded in the front end face of the matching disc and close to the edge;

the utility model discloses a pliers, including handle, claw pole, guide bar, rotary sleeve, claw pole, ring is equipped with to the top shaping of handle, the rotation is equipped with the rotary sleeve in the installation ring, the rear end of claw pole with rotary sleeve fixed connection, just the rear end outside of claw pole still overlaps and is equipped with the thumbwheel, the inboard rotation of rotary sleeve is provided with a driven section of thick bamboo, the interior sliding insertion of driven section of thick bamboo has a driven pole, the front end of driven pole insert to the claw pole in and with guide bar detachable fixed connection, still be equipped with movable ring on the handle, movable ring is used for controlling the driven pole slides back and forth.

Optionally, protruding parts are arranged on the surface of the clamping body and on two sides of the clamping plate, the clamping plate is in a V shape, rotating shafts are arranged on the front side and the rear side of the bending part of the middle section of the clamping plate, the two rotating shafts are respectively connected with the two protruding parts in a rotating way, a connecting rod is further hinged at the rear end of the clamping plate, and one end of the connecting rod, which is far away from the clamping plate, is hinged with the front end of the first push rod; the cutting scissors comprise two blades and a positioning shaft, the two blades are movably sleeved on the positioning shaft, the two blades are symmetrically distributed, and the positioning shaft is fixedly connected with the clamping body; the rear ends of the two blades are hinged with inclined supporting rods, and the rear ends of the two inclined supporting rods are hinged with the front end of the second push rod.

Optionally, a closing spring is sleeved on the first push rod and the second push rod and is positioned on the outer side of one section of the inner part of the rotating seat, and in a natural state, the closing spring is in a stretching state; and sealing rings are respectively sleeved in the first through hole and the second through hole, and the inner surfaces of the two sealing rings are respectively attached to the first push rod and the second push rod.

Optionally, a driving gear is rotatably arranged in the handle, a sliding sleeve is sleeved on the outer side of the rear end of the driven rod, the sliding sleeve is in sliding connection with the handle along the axial direction of the sliding sleeve, a rack is further arranged on the bottom side of the sliding sleeve, and the rack is meshed with the driving gear; one end of the movable ring is fixedly connected with the driving gear, a fixed handle is further arranged at the rear end of the handle, the fixed handle and the movable ring form a V shape, and a reset reed is connected between the fixed handle and the movable ring.

Optionally, the first bearing is sleeved in the installation ring, the rotation sleeve is in running fit with the installation ring through the first bearing, a rubber blocking ring is further sleeved on the inner peripheral wall of the installation ring, the inner peripheral wall of the rubber blocking ring is abutted to the outer surface of the rotation sleeve, a second bearing is further sleeved on the inner peripheral wall of the rotation sleeve, and the driven cylinder is in running fit with the rotation sleeve through the second bearing.

Optionally, a penetrating hole is formed in the driven cylinder in a penetrating manner in the radial direction, driven nails are inserted into the penetrating hole, the driven nails are fixedly connected with the driven rod, and the diameter of the driven nails is matched with the inner width of the penetrating hole.

Optionally, the fixed cover in rear end outside of driven section of thick bamboo is equipped with driven ring gear, the inside of handle is fixed to be equipped with the installation axle, the epaxial cover of rotating of installation is equipped with drive gear, drive gear with driven ring gear meshes mutually, the regulation opening has still been seted up to the side of handle, one side of drive gear passes the regulation opening and stretches out to the outside of handle.

Optionally, hidden cavities are formed on the left and right sides of the inside of the adapting port, an extrusion part is arranged in the hidden cavities, the extrusion part comprises a seat plate, an extrusion body, an electromagnet and a second magnetic block, the seat plate is fixedly arranged at the inner end of the hidden cavity, one end of the extrusion body is inserted into the hidden cavity, the electromagnet is fixedly arranged on the seat plate, the second magnetic block is fixedly arranged on the extrusion body and is opposite to the position of the electromagnet, a reset spring is further arranged between the seat plate and the extrusion body, and when the reset spring is in a natural state, the extrusion body is completely contracted into the hidden cavity; the magnetic poles of the opposite surfaces of the electromagnet and the second magnetic block are the same; two round holes communicated with the hidden cavity are formed in the left side and the right side of the clamping plate, which are opposite to the clamping body, conductive contacts are fixedly embedded in the round holes, and two leads of the electromagnet are respectively and electrically connected with the two conductive contacts.

Optionally, a movable cavity is formed in the front side surface of the inner part of the rotating seat, a movable seat is fixedly arranged at the inner end of the movable cavity, a movable block is inserted into the movable cavity, a pushing spring is connected between the movable block and the movable seat, and two first conductive columns are arranged on the left side and the right side of the rear end of the movable block; two second conductive columns are arranged on the clamping body and on the left side and the right side of one surface facing the clamping plate, the first conductive columns are in one-to-one correspondence with the second conductive columns, and the first conductive columns are electrically connected with the corresponding second conductive columns; when the clamping plate is attached to the clamping body, the second conductive columns are all abutted with the corresponding conductive contacts; the left side and the right side of the front end face of the matching disc are respectively provided with two third conductive columns, a power supply is arranged in the handle, and the two third conductive columns positioned on the same side of the matching disc are respectively connected with the positive electrode and the negative electrode of the power supply.

Optionally, four conductive reeds are arranged at intervals on the peripheral wall of the rear end of the guide rod, four conductive reeds are respectively electrically connected with four third conductive posts, an inserting groove is formed in the front end of the driven rod, four positioning grooves for embedding the conductive reeds are formed in the inner surface of the inserting groove, four fourth conductive posts are further arranged on the peripheral wall of the front end of the driven rod, one ends of the four fourth conductive posts are respectively inserted into the four positioning grooves, and the four fourth conductive posts are electrically connected with the power supply.

Compared with the prior art, the invention provides the adjustable endoscopic surgical forceps, which have the following beneficial effects:

1. the forceps clamp is provided with the clamping plate and the cutting scissors, wherein the clamping plate is used for clamping suture lines or focus tissues of a patient, and the cutting scissors can cut off the corresponding suture lines or tissues, so that surgical forceps do not need to be frequently replaced, the surgical time is shortened, and the surgical efficiency is improved;

2. according to the invention, the clamping plate and the cutting scissors can be respectively controlled to be opened and closed by rotating the guide rod, and the rotation of the guide rod can be completed by the driving gear on the handle, so that a user can toggle the driving gear by the thumb, and the operation is simple and quick;

3. the clamping plate is also provided with two extrusion parts, and the two extrusion parts can mutually extrude to clamp the suture line, so that the suture line is in a tightening state, and the suture line is convenient to be accurately sheared by the cutting scissors;

4. the fixed handle is internally provided with the power supply, when a user fully expands the movable ring, the electromagnet is in a power-off state, the extrusion part is contracted in the hidden cavity, and when the user kneads the movable ring for a small distance, the electromagnet is conducted with the power supply, and the two extrusion parts simultaneously extend to clamp the suture line, so that the fixed handle is convenient and quick to use.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of the structure of the clamp of the present invention;

FIG. 3 is another angular schematic view of the jaw of the present invention;

FIG. 4 is a cross-sectional view of the structure of the jaw of the present invention;

FIG. 5 is a cross-sectional view of another condition of the jaw of the present invention;

FIG. 6 is a schematic view of the handle structure of the present invention;

FIG. 7 is a schematic diagram of a movable block structure according to the present invention;

FIG. 8 is a schematic view of the structure of the clamping plate of the present invention;

FIG. 9 is another angular schematic view of the splint of the present invention;

FIG. 10 is a schematic view of the structure of the guide rod and the matching disc of the present invention;

FIG. 11 is an enlarged corresponding view at A in FIG. 1;

FIG. 12 is an enlarged view of FIG. 1 at B;

FIG. 13 is an enlarged view of FIG. 4 at C;

FIG. 14 is an enlarged corresponding view at D in FIG. 6;

FIG. 15 is a schematic view of a guide rod and driven rod structure according to the present invention;

FIG. 16 is a schematic view of a driving gear and rack structure according to the present invention;

fig. 17 is a schematic view of the structure of the driving gear of the present invention.

In the figure: 100. a clamp lever; 101. a guide rod; 102. a matching tray; 103. a first magnetic block; 104. a thumbwheel; 105. a third conductive post; 106. a conductive reed; 200. a jaw; 201. a mounting base; 202. a rotating seat; 203. a clamping body; 204. a clamping plate; 205. cutting and shearing; 2051. a blade; 2052. positioning a shaft; 206. cutting; 207. an adaptation port; 208. a first through hole; 209. a second through hole; 210. a first push rod; 211. a second push rod; 212. iron sheet; 213. a protruding portion; 214. a rotation shaft; 215. a connecting rod; 216. a diagonal brace; 217. a closing spring; 218. a seal ring; 219. hiding the cavity; 220. an extrusion part; 2201. a seat plate; 2202. an extrusion body; 2203. an electromagnet; 2204. a second magnetic block; 2205. a return spring; 221. a round hole; 222. a conductive contact; 223. a movable cavity; 224. a movable seat; 225. a movable block; 226. a pushing spring; 227. a first conductive pillar; 228. a second conductive post; 300. a handle; 301. a mounting ring; 302. a rotating sleeve; 303. a power supply; 304. a driven cylinder; 305. a driven rod; 306. a movable finger ring; 307. a drive gear; 308. a sliding sleeve; 309. a rack; 310. a fixed handle; 311. resetting the reed; 312. a first bearing; 313. preventing the rubber ring; 314. a second bearing; 315. a penetration port; 316. a driven nail; 317. a driven gear ring; 318. a mounting shaft; 319. a drive gear; 320. adjusting the opening; 321. a plug-in groove; 322. a positioning groove; 323. a fourth conductive post; 324. a positioning block; 325. installing a cap; 326. a positioning spring; 327. positioning the bulge; 328. positioning holes; 329. a slide bar; 330. an annular flange.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

At present, in the minimally invasive laparoscopic surgery process, the steps of excision, electrocoagulation hemostasis, suturing and the like are often needed to be carried out on a patient by using surgical forceps, wherein when the suturing step is carried out, a doctor needs to stretch two surgical forceps into the patient together, one surgical forceps is needle holding forceps used for holding a suture needle, and the other surgical forceps is clamping forceps used for holding one end of a suture line or knotting by matching with the needle holding forceps. After the knotting step is finished, a doctor needs to draw out the clamping forceps and replace the clamping forceps with the direct shearing forceps to extend into the patient, then pinch and pull the suture needle outwards by using the needle holding forceps, so that the suture is in a tight state, and then the suture is sheared by using the direct shearing forceps. After shearing, the straight cutting pliers are required to be pulled out, and the straight cutting pliers are replaced by the clamping pliers again, and the stitching is continued, so that the stitching process is repeated until the stitching process is completed.

The suture process needs to frequently replace the clamping forceps and the direct shearing forceps, so that the operation time is prolonged, and the operation efficiency needs to be improved. In addition, in the process of cutting the suture, the needle holding forceps are required to hold the suture needle and straighten the suture, the action force is often difficult to accurately control, if the force is too small, the suture cannot be straightened, the suture is not cut well, and the cutting position is inconvenient to control; if the force is too large, the suture line can be straightened, but the suture line is easy to pull the wound, so that secondary injury is caused to the wound.

In order to solve the above problems, the present invention provides the following solutions:

examples: referring to fig. 1-17, an adjustable endoscopic surgical forceps includes a forceps rod 100, wherein the forceps rod 100 has a hard tubular structure, a forceps holder 200 is provided at the front end of the forceps rod 100, a handle 300 is provided at the rear end of the forceps rod 100, the forceps holder 200 includes a cylindrical mounting seat 201, a cylindrical rotating seat 202 is provided at the front end of the mounting seat 201, and the rear end of the mounting seat 201 is fixedly connected with the forceps rod 100; specifically, the mounting seat 201 and the rotating seat 202 are fixedly connected by threads, and the mounting seat 201 and the clamp rod 100 are also fixedly connected by threads; the front end of the rotating seat 202 is integrally formed with a clamping body 203, one surface of the clamping body 203 is rotatably provided with a clamping plate 204, the other surface of the clamping body 203 is provided with a cutting shear 205, the front end of the clamping body 203 is provided with a cutting opening 206 at the middle part, and the middle part of the clamping plate 204 is also provided with an adapting opening 207 which is matched with the cutting opening 206; as shown in fig. 2, the front end of the slit 206 has a splayed shape, which is used to facilitate the entry of a suture into the slit 206.

Further, the front end of the rotating seat 202 and the two sides of the clamping plate 204 are also penetrated and provided with a first through hole 208 and a second through hole 209, the axial directions of the first through hole 208 and the second through hole 209 are consistent with the axial direction of the rotating seat 202, a first push rod 210 and a second push rod 211 are movably inserted into the first through hole 208 and the second through hole 209 respectively, the rear ends of the first push rod 210 and the second push rod 211 are fixedly provided with iron sheets 212, the first push rod 210 can control the clamping plate 204 to rotate through front-back expansion, and the second push rod 211 can control the cutting shear 205 to open and close through front-back expansion; the first through hole 208 and the second through hole 209 are respectively sleeved with a sealing ring 218, the inner surfaces of the two sealing rings 218 are respectively attached to the first push rod 210 and the second push rod 211, the sealing rings 218 are made of rubber materials, and the inner surfaces of the sealing rings 218 are smooth and are used for preventing liquid (such as tissue fluid and blood) in a human body from entering the rotating seat 202.

As shown in fig. 2, protruding portions 213 are disposed on the surface of the clamping body 203 and located on two sides of the clamping body 203, the protruding portions 213 and the clamping body 203 are integrally formed, the clamping body 204 is V-shaped, an included angle at a bending position of a middle section of the clamping body 204 is an obtuse angle, rotating shafts 214 are disposed on front and rear sides of the bending position of the middle section of the clamping body 204, and the two rotating shafts 214 are respectively rotatably connected with the two protruding portions 213, so that the clamping body 204 can rotate around the rotating shafts 214, an object can be clamped by the clamping body 203 and the clamping body 204, and anti-skid patterns are formed on opposite surfaces of the clamping body 203 and the clamping body 204; the rear end of the clamping plate 204 is also hinged with a connecting rod 215, and one end of the connecting rod 215 away from the clamping plate 204 is hinged with the front end of the first push rod 210; thus, when the first push rod 210 extends forward, the clamping plate 204 can be driven to be closed by the connecting rod 215, whereas when the first push rod 210 is retracted backward, the clamping plate 204 can be controlled to be turned upwards and unfolded.

As shown in fig. 3, the cutting shear 205 includes two blades 2051 and a positioning shaft 2052, the two blades 2051 are movably sleeved on the positioning shaft 2052, the two blades 2051 are symmetrically distributed, and the positioning shaft 2052 is fixedly connected with the clamping body 203; the rear ends of the two blades 2051 are hinged with inclined supporting rods 216, and the rear ends of the two inclined supporting rods 216 are hinged with the front end of the second push rod 211; when the second push rod 211 is extended forward, the cutting scissors 205 may be controlled to close by the two diagonal braces 216, whereas when the second push rod 211 is retracted rearward, the cutting scissors 205 may be controlled to open.

In addition, a guide rod 101 is inserted into the clamp rod 100, the front end of the guide rod 101 penetrates through the mounting seat 201 and extends into the rotating seat 202, a matching disc 102 is further arranged at the front end of the guide rod 101, and a first magnetic block 103 for adsorbing the iron sheet 212 is further embedded at the position, close to the edge, of the front end surface of the matching disc 102; the mounting seat 201 is provided with a through hole for the guide rod 101 to pass through, the front ends of the matching disc 102 and the guide rod 101 are connected and fixed through bolts, and when the first magnetic block 103 and the iron sheet 212 at the rear end of the first push rod 210 are adsorbed, the clamping plate 204 can be controlled to overturn through the expansion and contraction of the guide rod 101; when the guide rod 101 is turned 180 degrees, the first magnetic block 103 can be adsorbed to the iron sheet 212 at the rear end of the second push rod 211, and the cutting scissors 205 can be controlled to open and close by the extension and contraction of the guide rod 101.

It should be noted that, the first push rod 210 and the second push rod 211 are respectively sleeved with the closing spring 217 on one section of the outer side of the inner portion of the rotating seat 202, in a natural state, the closing spring 217 is in a stretched state, and two ends of the closing spring 217 are respectively fixedly connected with the inner end of the rotating seat 202 and the iron sheet 212, so that the closing spring 217 has a forward pulling force on the first push rod 210 and the second push rod 211, and when the first push rod 210 and the second push rod 211 are not adsorbed by magnetic force, the clamping plate 204 and the cutting shear 205 are in a closed state. In addition, in order to ensure that the first magnetic block 103 can smoothly adsorb the iron piece 212 and pull the first push rod 210 and the second push rod 211 to move, in this embodiment, it is necessary to ensure that the adsorption force of the first magnetic block 103 and the iron piece 212 is sufficiently large, that is, the tension of the closing spring 217 within the elastic limit does not exceed the adsorption force of the first magnetic block 103 and the iron piece 212.

Further, a mounting ring 301 is formed at the top of the handle 300, a rotary sleeve 302 is rotationally arranged in the mounting ring 301, the rear end of the clamp rod 100 is fixedly connected with the rotary sleeve 302, specifically, the rear end of the clamp rod 100 is sleeved outside the rotary sleeve 302 and fixed with the rotary sleeve through a bolt, and a thumbwheel 104 is sleeved outside the rear end of the clamp rod 100; the inner side of the rotary sleeve 302 is rotatably provided with a driven cylinder 304, a driven rod 305 is inserted into the driven cylinder 304 in a sliding way, the front end of the driven rod 305 is inserted into the clamp rod 100 and is detachably and fixedly connected with the guide rod 101, the handle 300 is also provided with a movable finger ring 306, and the movable finger ring 306 is used for controlling the driven rod 305 to slide back and forth; the first bearing 312 is sleeved in the mounting ring 301, the rotating sleeve 302 is in running fit with the mounting ring 301 through the first bearing 312, the inner peripheral wall of the mounting ring 301 is also sleeved with a rubber stop ring 313, the inner peripheral wall of the rubber stop ring 313 is abutted against the outer surface of the rotating sleeve 302, the rubber stop ring 313 is made of silica gel, the rubber stop ring 313 has the function of increasing the friction force between the mounting ring 301 and the rotating sleeve 302, the stability of the rotating sleeve 302 is improved, and random rotation of the rotating sleeve 302 is avoided; the inner peripheral wall of the rotary sleeve 302 is also sleeved with a second bearing 314, and the driven cylinder 304 is in running fit with the rotary sleeve 302 through the second bearing 314; when a user needs to rotate the clamp bar 100, the thumb is only required to stir the thumbwheel 104, so that the rotation torque force of the rotating sleeve 302 overcomes the friction force applied by the rubber ring 313.

As shown in fig. 1, a driving gear 307 is rotatably arranged in the handle 300, a sliding sleeve 308 is sleeved outside the rear end of the driven rod 305, the sliding sleeve 308 is in sliding connection with the handle 300 along the axial direction of the sliding sleeve 308, a rack 309 is further arranged on the bottom side of the sliding sleeve 308, the length direction of the rack 309 is consistent with the axial direction of the sliding sleeve 308, and the rack 309 is meshed with the driving gear 307; one end of the movable finger ring 306 is fixedly connected with the driving gear 307, the other end of the movable finger ring 306 extends out from the opening below the handle 300, the rear end of the handle 300 is also provided with a fixed handle 310, a V shape is formed between the fixed handle 310 and the movable finger ring 306, a reset reed 311 is connected between the fixed handle 310 and the movable finger ring 306, the reset reed 311 is always in a bending and shrinking state, namely, the reset reed 311 always applies pushing force to the movable finger ring 306, so that the movable finger ring 306 has a clockwise swinging trend; when the user squeezes the movable finger ring 306 by hand, the driven rod 305 can be driven to move forward by the rack 309; specifically, in this embodiment, the maximum swing angle of the movable finger ring 306 is 30 °.

As shown in fig. 16, a sliding rod 329 is movably and penetratingly arranged on the rack 309, the sliding rod 329 is fixedly connected with the inside of the handle 300, the sliding rod 329 is consistent with the rack 309 in length direction, and the rack 309 can slide along the length direction of the sliding rod 329; and a limit flange 330 is sleeved outside the driven rod 305 and positioned on two sides of the sliding sleeve 308, and the limit flange 330 is used for ensuring that no axial sliding occurs between the sliding sleeve 308 and the driven rod 305.

The driven cylinder 304 is provided with a penetrating hole 315 in a penetrating way along the radial direction, a driven nail 316 is inserted into the penetrating hole 315, the driven nail 316 is fixedly connected with the driven rod 305, and the diameter of the driven nail 316 is matched with the inner width of the penetrating hole 315, so that the driven rod 305 can slide back and forth in the driven cylinder 304, but the driven rod 305 and the driven rod can not deflect relatively, and when the driven cylinder 304 rotates, the driven rod 305 can be driven to rotate synchronously; the rear end outer side of the driven cylinder 304 is fixedly sleeved with a driven gear ring 317, the inside of the handle 300 is fixedly provided with a mounting shaft 318, the mounting shaft 318 is rotatably sleeved with a driving gear 319, the driving gear 319 is meshed with the driven gear ring 317, the side surface of the handle 300 is also provided with an adjusting opening 320, and one side of the driving gear 319 penetrates through the adjusting opening 320 and extends out of the handle 300; thus, the user simply dials the drive gear 319 with the thumb to control rotation of the follower lever 305.

In addition, a positioning block 324 is arranged on the outer surface of the handle 300 and near the adjusting opening 320, a mounting cap 325 is arranged on one surface of the positioning block 324 opposite to the driving gear 319, a positioning spring 326 is connected inside the mounting cap 325, a positioning bulge 327 is connected at the free end of the positioning spring 326, one end of the positioning bulge 327 facing the driving gear 319 is spherical, and the end passes through the positioning block 324; two positioning holes 328 are formed in the driving gear 319 and near the edge positions, and when the positioning bulges 327 are respectively embedded into the two positioning holes 328, the first magnetic blocks 103 are respectively aligned with the two iron sheets 212.

As shown in fig. 8, hidden cavities 219 are formed on both left and right side surfaces of the inside of the adapting port 207, an extrusion part 220 is arranged in the hidden cavities 219, the extrusion part 220 comprises a seat plate 2201, an extrusion body 2202, an electromagnet 2203 and a second magnetic block 2204, the seat plate 2201 is fixedly arranged at the inner end of the hidden cavities 219, one end of the extrusion body 2202 is inserted into the hidden cavities 219, the electromagnet 2203 is fixedly arranged on the seat plate 2201, the second magnetic block 2204 is fixedly arranged on the extrusion body 2202 and is opposite to the electromagnet 2203, a reset spring 2205 is further arranged between the seat plate 2201 and the extrusion body 2202, and when the reset spring 2205 is in a natural state, the extrusion body 2202 is completely contracted into the hidden cavities 219; the electromagnet 2203 and the second magnet 2204 have the same facing poles; as shown in fig. 9, two round holes 221 communicated with the hidden cavity 219 are formed on the left and right sides of one surface of the clamping plate 204, which is opposite to the clamping body 203, a conductive contact 222 is fixedly embedded in the round hole 221, and two leads of the electromagnet 2203 are respectively and electrically connected with the two conductive contacts 222; when the electromagnet 2203 is in the power-off state, the squeeze body 2202 is contracted in the hidden cavity 219 under the action of the return spring 2205, and when the electromagnet 2203 is electrified, since the facing surface magnetic poles of the electromagnet 2203 and the second magnetic block 2204 are the same, the squeeze body 2202 can be pushed to extend outwards under the action of repulsive force, and the two squeeze bodies 2202 can squeeze each other, as shown in the state of fig. 9.

As shown in fig. 7 and 13, a movable cavity 223 is formed in the front side surface of the interior of the rotating seat 202, a movable seat 224 is fixedly arranged at the inner end of the movable cavity 223, a movable block 225 is also inserted into the interior of the movable cavity 223, a pushing spring 226 is connected between the movable block 225 and the movable seat 224, and two first conductive columns 227 are arranged on the left and right sides of the rear end of the movable block 225; two second conductive columns 228 are respectively disposed on the left and right sides of the clamping body 203 and facing the clamping plate 204, as shown in fig. 2, the first conductive columns 227 are in one-to-one correspondence with the second conductive columns 228, and the first conductive columns 227 are electrically connected with the corresponding second conductive columns 228; when the clamping plate 204 is attached to the clamping body 203, the second conductive posts 228 are abutted against the corresponding conductive contacts 222; the first conductive columns 227 and the second conductive columns 228 are made of red copper, the rotating base 202 and the movable block 225 are made of insulating materials (such as hard plastics), in addition, the two first conductive columns 227 located on the same side of the movable block 225 are respectively in one-to-one correspondence with the two second conductive columns 228 located on the same side of the clamping body 203, and wires are connected between the first conductive columns 227 and the corresponding second conductive columns 228.

Two third conductive columns 105 are arranged on the left side and the right side of the front end surface of the matching disc 102, a power supply 303 is arranged in the handle 300, and the two third conductive columns 105 positioned on the same side of the matching disc 102 are respectively connected with the positive electrode and the negative electrode of the power supply 303; specifically, the matching plate 102 is made of an insulating material, such as a hard plastic, the third conductive columns 105 are made of red copper, and the two third conductive columns 105 located on the same side of the matching plate 102 are respectively in one-to-one correspondence with the two first conductive columns 227 located on the same side of the movable block 225, and when the third conductive columns 105 and the corresponding first conductive columns 227 are aligned, the guide rod 101 is pushed forward, so that the third conductive columns 105 and the corresponding first conductive columns 227 can be abutted.

In addition, it should be noted that, when the rear side of the matching disc 102 abuts against the mounting seat 201 and the pushing spring 226 is in a natural state, the position of the movable block 225 is as shown in fig. 5, at this time, the gap between the rear end of the movable block 225 and the matching disc 102 is small but not in contact, and in particular, when the user kneads the movable finger ring 306 to make its swing angle exceed 5 °, the third conductive post 105 can abut against the corresponding first conductive post 227, so as to energize the electromagnet 2203.

Further, four conductive reeds 106 are arranged at intervals on the peripheral wall of the rear end of the guide rod 101, the conductive reeds 106 are made of red copper and are arched, and the four conductive reeds 106 are respectively and electrically connected with four third conductive columns 105 through wires; the front end of the driven rod 305 is provided with an inserting groove 321 for inserting the guide rod 101, the inner surface of the inserting groove 321 is provided with four positioning grooves 322 for inserting the conductive reed 106, the peripheral wall of the front end of the driven rod 305 is also provided with four fourth conductive columns 323, the fourth conductive columns 323 are copper columns, the driven rod 305 is made of hard plastic, one ends of the four fourth conductive columns 323 are respectively inserted into the four positioning grooves 322, and the four fourth conductive columns 323 are electrically connected with the power supply 303; specifically, when the rear end of the guide rod 101 is inserted into the insertion groove 321 and the four conductive reeds 106 are respectively embedded into the four positioning grooves 322, the inner ends of the four fourth conductive posts 323 are respectively abutted against the four conductive reeds 106; in addition, since the four conductive tabs 106 and the four fourth conductive posts 323 are in one-to-one correspondence, and the four conductive tabs 106 are also in one-to-one correspondence with the four third conductive posts 105, the two fourth conductive posts 323 corresponding to the two third conductive posts 105 located on the same side of the matching disk 102 are connected to the positive and negative electrodes of the power supply 303 through wires, respectively. The power supply 303 is a dry battery, a battery groove is formed in the fixed handle 310, and the power supply 303 is located in the battery groove in the fixed handle 310.

In summary, in the specific use process of the embodiment, when the clamping function is needed, the first magnetic block 103 and the first push rod 210 are aligned, the iron sheet 212 at the rear end of the first magnetic block 103 and the first push rod 210 is adsorbed, and then the movable finger ring 306 is pressed to control the opening and closing of the clamping plate 204; on the contrary, when the shearing function is needed, the iron sheet 212 at the rear ends of the first magnetic block 103 and the second push rod 211 is absorbed, and then the movable finger ring 306 is pinched, so that the opening and closing of the cutting scissors 205 can be controlled. In addition, when the guide bar 101 needs to be rotated, the user needs to prop against the thumbwheel 104 with the index finger to keep the stability of the clamp bar 100, and then toggle the driving gear 319 with the thumb; conversely, when the clamp bar 100 needs to be rotated, the thumb is required to press the driving gear 319 to keep the guide bar 101 stable, and then the index finger is required to stir the thumbwheel 104 to rotate the clamp bar 100.

Specifically, in the step of cutting the suture, it is necessary to make the cutting scissors 205 above the clamping plate 204, and make the iron piece 212 at the rear end of the first magnetic block 103 and the second push rod 211 adsorb, then pinch the suture needle by using a hand to control the needle holder, and control the surgical forceps in this embodiment by the other hand, and penetrate the suture into the cutting opening 206, then slightly pinch the movable finger ring 306, at this time, the first conductive column 227 and the third conductive column 105 abut, the electromagnet 2203 is energized, the two squeezing bodies 2202 are jointly extended to clamp the suture, then the user pulls the suture towards the end far away from the needle holder, so as to tighten the suture, and finally pinch the movable finger ring 306 in place, thereby cutting the suture by using the cutting scissors 205. In this process, the suture tightening segment is clamped by the needle holder and the clamping plate 204, so that the suture is convenient to cut, and the suture is not pulled, so that secondary injury to the wound of the patient is avoided.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides an adjustable laparoscopic surgery pincers, includes clamp bar (100), the front end of clamp bar (100) is equipped with pincers clamp (200), the rear end of clamp bar (100) is equipped with handle (300), its characterized in that:

the clamp comprises a clamp body (200), wherein the clamp body comprises a cylindrical mounting seat (201), a cylindrical rotating seat (202) is arranged at the front end of the mounting seat (201), the rear end of the mounting seat (201) is fixedly connected with a clamp rod (100), a clamping body (203) is integrally formed at the front end of the rotating seat (202), a clamping plate (204) is rotatably arranged on one surface of the clamping body (203), a cutting shear (205) is arranged on the other surface of the clamping body (203), a cutting opening (206) is formed in the front end of the clamping body (203) and positioned in the middle of the clamping body, and an adapting opening (207) which is matched with the cutting opening (206) is formed in the middle of the clamping plate (204);

the front end of the rotating seat (202) is further provided with a first through hole (208) and a second through hole (209) in a penetrating mode, the first through hole (208) and the second through hole (209) are respectively movably inserted with a first push rod (210) and a second push rod (211), the rear ends of the first push rod (210) and the second push rod (211) are fixedly provided with iron sheets (212), the first push rod (210) can control the clamping plate (204) to rotate through front-back expansion, and the second push rod (211) can control the cutting shears (205) to open and close through front-back expansion; the clamp is characterized in that a guide rod (101) is inserted into the clamp rod (100), the front end of the guide rod (101) penetrates through the mounting seat (201) and stretches into the rotating seat (202), a matching disc (102) is further arranged at the front end of the guide rod (101), and a first magnetic block (103) for adsorbing an iron sheet (212) is further embedded into the front end face of the matching disc (102) and close to the edge;

the top of the handle (300) is provided with a mounting ring (301), the mounting ring (301) is rotationally provided with a rotary sleeve (302), the rear end of the clamp rod (100) is fixedly connected with the rotary sleeve (302), the outer side of the rear end of the clamp rod (100) is also sleeved with a thumbwheel (104), the inner side of the rotary sleeve (302) is rotationally provided with a driven cylinder (304), the driven barrel (304) is internally and slidably inserted with a driven rod (305), the front end of the driven rod (305) is inserted into the clamp rod (100) and detachably and fixedly connected with the guide rod (101), the handle (300) is also provided with a movable finger ring (306), and the movable finger ring (306) is used for controlling the driven rod (305) to slide back and forth.

2. An adjustable laparoscopic surgical forceps according to claim 1, wherein: the clamping body (203) is characterized in that protruding parts (213) are arranged on the surface of the clamping body (203) and located on two sides of the clamping plate (204), the clamping plate (204) is in a V shape, rotating shafts (214) are arranged on the front side and the rear side of a bending part of the middle section of the clamping plate (204), the two rotating shafts (214) are respectively connected with the two protruding parts (213) in a rotating mode, a connecting rod (215) is further hinged to the rear end of the clamping plate (204), and one end, far away from the clamping plate (204), of the connecting rod (215) is hinged to the front end of the first push rod (210); the cutting scissors (205) comprise two blades (2051) and a positioning shaft (2052), the two blades (2051) are movably sleeved on the positioning shaft (2052), the two blades (2051) are symmetrically distributed, and the positioning shaft (2052) is fixedly connected with the clamping body (203); the rear ends of the two blades (2051) are hinged with inclined supporting rods (216), and the rear ends of the two inclined supporting rods (216) are hinged with the front end of the second push rod (211).

3. An adjustable laparoscopic surgical forceps according to claim 2, wherein: the first push rod (210) and the second push rod (211) are respectively sleeved with a closing spring (217) at the outer side of one section of the inner part of the rotating seat (202), and the closing springs (217) are in a stretching state in a natural state; sealing rings (218) are respectively sleeved in the first through holes (208) and the second through holes (209), and the inner surfaces of the two sealing rings (218) are respectively attached to the first push rod (210) and the second push rod (211).

4. An adjustable laparoscopic surgical forceps according to claim 1, wherein: the inside of the handle (300) is rotatably provided with a driving gear (307), the outer side of the rear end of the driven rod (305) is sleeved with a sliding sleeve (308), the sliding sleeve (308) is in sliding connection with the handle (300) along the axial direction of the sliding sleeve, the bottom side of the sliding sleeve (308) is also provided with a rack (309), and the rack (309) is meshed with the driving gear (307); one end of the movable finger ring (306) is fixedly connected with the driving gear (307), a fixed handle (310) is further arranged at the rear end of the handle (300), the fixed handle (310) and the movable finger ring (306) form a V shape, and a reset reed (311) is connected between the fixed handle (310) and the movable finger ring (306).

5. An adjustable laparoscopic surgical forceps according to claim 4, wherein: the novel anti-rotation device is characterized in that a first bearing (312) is sleeved in the mounting ring (301), the rotating sleeve (302) is in running fit with the mounting ring (301) through the first bearing (312), a rubber blocking ring (313) is further sleeved on the inner peripheral wall of the mounting ring (301), the inner peripheral wall of the rubber blocking ring (313) is abutted to the outer surface of the rotating sleeve (302), a second bearing (314) is further sleeved on the inner peripheral wall of the rotating sleeve (302), and the driven cylinder (304) is in running fit with the rotating sleeve (302) through the second bearing (314).

6. An adjustable laparoscopic surgical forceps according to claim 5, wherein: the driven cylinder (304) is provided with a penetrating opening (315) in a penetrating way in the radial direction, driven nails (316) are inserted into the penetrating opening (315), the driven nails (316) are fixedly connected with the driven rod (305), and the diameter of the driven nails (316) is matched with the inner width of the penetrating opening (315).

7. An adjustable laparoscopic surgical forceps according to claim 6, wherein: the automatic transmission device is characterized in that a driven gear ring (317) is fixedly sleeved on the outer side of the rear end of the driven cylinder (304), an installation shaft (318) is fixedly arranged in the handle (300), a driving gear (319) is rotatably sleeved on the installation shaft (318), the driving gear (319) is meshed with the driven gear ring (317), an adjusting opening (320) is further formed in the side face of the handle (300), and one side of the driving gear (319) penetrates through the adjusting opening (320) and stretches out of the handle (300).

8. An adjustable laparoscopic surgical forceps according to claim 1, wherein: hidden cavities (219) are formed in the left side surface and the right side surface of the inside of the adapting port (207), an extrusion part (220) is arranged in the hidden cavities (219), the extrusion part (220) comprises a seat plate (2201), an extrusion body (2202), an electromagnet (2203) and a second magnetic block (2204), the seat plate (2201) is fixedly arranged at the inner end of the hidden cavities (219), one end of the extrusion body (2202) is inserted into the hidden cavities (219), the electromagnet (2203) is fixedly arranged on the seat plate (2201), the second magnetic block (2204) is fixedly arranged on the extrusion body (2202) and is opposite to the position of the electromagnet (2203), and a reset spring (2205) is further arranged between the seat plate (2201) and the extrusion body (2202), and when the reset spring (2205) is in a natural state, the extrusion body (2202) is completely contracted into the hidden cavities (219); the magnetic poles of the opposite surfaces of the electromagnet (2203) and the second magnetic block (2204) are the same; two round holes (221) communicated with the hidden cavity (219) are formed in the left side and the right side of the clamping plate (204) opposite to one surface of the clamping body (203), conductive contacts (222) are fixedly embedded in the round holes (221), and two leads of the electromagnet (2203) are respectively and electrically connected with the two conductive contacts (222).

9. An adjustable laparoscopic surgical forceps according to claim 8, wherein: a movable cavity (223) is formed in the front side surface of the inside of the rotating seat (202), a movable seat (224) is fixedly arranged at the inner end of the movable cavity (223), a movable block (225) is inserted into the movable cavity (223), a pushing spring (226) is connected between the movable block (225) and the movable seat (224), and two first conductive columns (227) are arranged at the left side and the right side of the rear end of the movable block (225); two second conductive columns (228) are arranged on the clamping body (203) and on the left side and the right side of one surface facing the clamping plate (204), the first conductive columns (227) are in one-to-one correspondence with the second conductive columns (228), and the first conductive columns (227) are electrically connected with the corresponding second conductive columns (228); when the clamping plate (204) is attached to the clamping body (203), the second conductive posts (228) are abutted with the corresponding conductive contacts (222); two third conductive posts (105) are arranged on the left side and the right side of the front end face of the matching disc (102), a power supply (303) is arranged in the handle (300), and the two third conductive posts (105) positioned on the same side of the matching disc (102) are respectively connected with the positive electrode and the negative electrode of the power supply (303).

10. An adjustable laparoscopic surgical forceps according to claim 9, wherein: four conductive reeds (106) are arranged at intervals on the outer peripheral wall of the rear end of the guide rod (101), the four conductive reeds (106) are respectively electrically connected with four third conductive posts (105), the front end of the driven rod (305) is provided with a plugging groove (321), the inner surface of the plugging groove (321) is provided with four positioning grooves (322) for the conductive reeds (106) to be embedded in, the outer peripheral wall of the front end of the driven rod (305) is also provided with four fourth conductive posts (323), one ends of the four fourth conductive posts (323) are respectively inserted into the four positioning grooves (322), and the four fourth conductive posts (323) are electrically connected with the power supply (303).