CN112704545B

CN112704545B - Polyp snare convenient to cut and take out

Info

Publication number: CN112704545B
Application number: CN202110052045.3A
Authority: CN
Inventors: 金富康; 沈礼宝
Original assignee: Suzhou Frankenman Medical Equipment Co Ltd
Current assignee: Suzhou Frankenman Medical Equipment Co Ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2022-02-08
Anticipated expiration: 2041-01-15
Also published as: CN112704545A

Abstract

The invention relates to the technical field of polyp cutting ferrules, and discloses a polyp cutting ferrule which comprises a needle cylinder, a thin tube and a cutting line, wherein one end of the needle cylinder is connected with the thin tube in a sleeved mode, the cutting line is connected with the inner walls of the needle cylinder and the thin tube in a sleeved mode, a silica gel hose is bonded at one end of the needle cylinder, a buckle ring is bonded at one end of the silica gel hose, a drawing mechanism is arranged on the outer wall of one side of the buckle ring, an insulating head is bonded at one end of the cutting line, a mounting groove is formed in the inner wall of the insulating head, an electromagnet is electrified through the cutting line to generate magnetism similar to that of a magnetic column, the magnetic column is pushed forwards, a baffle and an agnail are opened under the action of an elastic rod to pierce polyps, the polyps are cut through the cutting line, then a power supply is disconnected, the magnetic column is driven to be recovered under the action of a plastic spring, the baffle forms a block, and accordingly the polyps are firmly fixed column, the polyp fixing is prevented from being unreliable, so that the polyp can be taken out quickly, and the recovery effect of a patient is improved.

Description

Polyp snare convenient to cut and take out

Technical Field

The invention relates to the technical field of polyp cutting ferrules, in particular to a polyp snare convenient to cut and take out.

Background

Polyps refer to neoplasms growing on the surface of human tissue, modern medicine generally refers to neoplasms growing on the surface of human mucosa as polyps, including hyperplastic, inflammatory, hamartoma, adenoma and other tumors, the polyps belong to one of benign tumors, and the clinical manifestations are mostly inflammatory polyps, adenomatous polyps and some gastrointestinal tract polyp syndromes, although the lesions belong to benign, part of the lesions have a malignant tendency, cysts growing under the skin, lipomas in fat tissue, myomas in muscle and the like can also cause the swelling of the body surface, but do not belong to the category of polyps, the medical science generally names the occurring parts according to the names, such as the "vocal cord polyp" growing on the vocal cords, the "stomach polyp" appearing on the stomach wall, the "intestinal polyp" in the intestinal cavity, and so on, if a certain part has more than two polyps, also called "multiple polyps", neoplastic polyp, intestinal polyposis, uterine polyp, cervical polyp, laryngeal polyp, nasal polyp, large intestine polyp, stomach polyp, colon polyp, gallbladder polyp and the like, and the polyp is resected under an endoscope (gastroscope and enteroscope), so that the method is a very effective measure for preventing canceration. The current endoscopic methods for treating polyps include: the causes of polyp generation are not clear up to now, and may be related to chronic stimulation and genetic factors: chronic stimuli include dietary, mechanical and inflammatory stimuli. Due to the change of the dietary habits, the properties of the excrement are changed to generate special stimulation; it is considered that the occurrence of polyp formation is closely related to genetic mutation and genetic factor, which are caused by irritation of intestinal diseases such as dysentery, ulcerative colitis, schistosomiasis and enterobiasis, chronic constipation and fecal dry knot. The current research situation shows that the resection of the mutant gene which is inherited by parents to offspring child polyps is mostly carried out by adopting a snare, the snare is an instrument which ties blood vessels, polyps or other pipeline structures by tightening a sliding knot which is tied by absorbable threads or synthetic threads in advance by using a nylon rod, the operation is convenient, the snare is applied to various laparoscopic abdominal operations, and the snare has the advantages of safety, convenience and economy, and is safe: the snare is made of an absorbable wire, and has small reaction to human tissues after being placed in a body; the operation is reversible, and the ligation position can be directly cut off when not satisfied; the cutting force to the tissue is smaller than that of the titanium clip, so that the tissue is not easy to be cut off; convenience is realized: compared with the tissue suturing and ligating under a laparoscope, the operation of ligating by using the snare is simple and convenient, other special instruments are not needed, the operation time can be shortened, and especially, a beginner is easy to master and use; economy: the snare is low in price, consumption of the endoscopic cutting closer with high price can be correspondingly reduced by applying the snare, and medical expenses are reduced to a certain extent.

The excision operation of polyp through the lasso ware has become a relatively mature treatment mode, and this kind of operation generally goes on under medical equipment's guide, but current lasso ware accomplishes not good to the fixed effect of polyp after the cutting of polyp when the operation is used, and the polyp can not obtain effective fixed, drops easily in the operation region, causes the operation to leave over, influences patient's postoperative recovery effect. And current lasso ware is when adjusting the angle of lasso, generally through the pull ring regulation of tip department, and the pivot point of this kind of regulation mode is far away from the lasso distance of the other end, not only adjusts inconveniently and adjust the precision not high, and the polyp snare who needs a cutting and take out conveniently, adjust convenient accuracy of lasso angle to current problem solves above-mentioned problem urgently.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the polyp snare with convenient cutting and taking out, which has the advantages of firmly fixing polyp, avoiding the unreliable fixation of polyp, quickly taking out the polyp, improving the recovery effect of a patient and the like, and solves the problems that the fixation effect of the polyp is poor after the cutting of the polyp is finished when the existing snare is used in an operation, the polyp cannot be effectively fixed, the polyp easily falls in an operation area, the operation is left over, the postoperative recovery effect of the patient is influenced, the snare is inconvenient to adjust and the precision is not high.

(II) technical scheme

In order to realize the purposes of firmly fixing the polyp, avoiding the unreliable polyp fixation, quickly taking out the polyp and improving the recovery effect of a patient, the invention provides the following technical scheme: including cylinder, tubule and line of cut, the one end of cylinder is connected through cup jointing with the tubule, the line of cut cup joints the inner wall with cylinder and tubule, the one end of cylinder bonds there is the silica gel hose, the one end of silica gel hose bonds there is the buckle, one side outer wall of buckle is provided with pull mechanism, the one end of line of cut bonds there is the insulating head, the mounting groove has been seted up to the inner wall of insulating head, one side inner wall of mounting groove bonds there is the electro-magnet, one side outer wall of electro-magnet bonds there is the plastic spring, the one end of plastic spring bonds there is the magnetism post, and the magnetism post cup joints the inner wall with the mounting groove, the bottom outer wall of magnetism post has the felting needle through the fix with screw, the outer wall of felting needle has been seted up and has accomodate the groove, the inner wall in accomodating groove has barb and baffle through hinged joint, top outer wall one side of barb and baffle bonds there is the elastic rod, the one end of elastic rod and the inner wall adhesive connection who accomodates the groove, the jack has been seted up to the inner wall of accomodating the groove, one side outer wall of cylinder is provided with connects the electric mechanism, and the outer wall of line of cut is provided with and transfers to the mechanism, one section disconnection of tubule, disconnection department have the sleeve through bonding, and telescopic one side outer wall has seted up the inlet port, has cup jointed the anesthesia trachea at the inner wall of inlet port.

Preferably, the outer wall of the needle cylinder is fixedly provided with two fixing plates which are symmetrically arranged, so that the needle cylinder is convenient to control and reliable to grasp in the actual use process.

Preferably, the drawing mechanism comprises a metal rod, one end of the metal rod is connected with the outer wall of one side of the retaining ring in an adhesion mode, so that the metal rod and the retaining ring are connected into a whole, the whole is linked, and the control is convenient.

Preferably, the outer wall of metal pole is fixed with the rubber buffer through the bonding, and the one end of metal pole bonds and has the minor axis, and the plush copper has been cup jointed to the one end of minor axis, the spout has been seted up to the outer wall one side of metal pole, the metal pole produces at the spout inner wall and slides for the electric current can conduct the position to line of cut and electro-magnet through the metal pole all the time.

Preferably, the power connection mechanism comprises a power connection joint, the power connection joint is connected with the needle cylinder in a sleeved mode, and the connection position of the power connection joint and the needle cylinder forms sealing.

Preferably, one end of the power-on connector is in contact with the inner wall of the bottom of the sliding groove of the metal rod, and the metal rod is in sliding connection with the inner wall of the sliding groove.

Preferably, the direction adjusting mechanism comprises a cutting line, a sleeve block is sleeved on the outer wall of the cutting line, a first groove is formed in the outer wall of one side of the sleeve block, and a first magnet is fixedly arranged on the inner wall of the first groove through bonding.

Preferably, the outer wall of tubule has cup jointed and has transferred to the circle, transfer to the one side outer wall of circle and seted up the second recess, the inner wall of second recess is fixed with second magnet through the bonding, first magnet sets up to opposite sex magnet with second magnet, first magnet and second magnet inter attraction.

Preferably, the inner wall of tubule bonds and has the fixed block, the cover block restriction is put at the central point of fixed block, the fixed block is fixed the cover block in a region, the cover block can rotate and slide in the fixed region of fixed block, and makes the cover block keep certain clearance with the inner wall of tubule, makes things convenient for gaseous flow.

Preferably, the one end outer wall both sides outer wall of tubule has been seted up and has been buckled and spout the medicine hole, it spouts the medicine hole to buckle can be so that carrying out the anesthesia in-process, and anesthetic gas's ejection angle scope enlarges, promotes the anesthesia effect to the polyp position, and the shape design of buckling of spouting the medicine hole of buckling simultaneously makes difficult the jam, guarantees that the anesthesia process can continuously effectively go on.

(III) advantageous effects

Compared with the prior art, the invention provides the polyp snare which is convenient to cut and take out, and has the following beneficial effects:

1. this kind of cutting and take out convenient polyp snare, line of cut through the setting, the electro-magnet, the magnetism post, the plastics spring, the baffle, elastic rod and barb, the line of cut is with the electro-magnet circular telegram, produce with magnetism of magnetism post homoplasmy magnetism, release the magnetism post forward, follow with baffle and barb at the elastic rod is opened, pierce through the polyp, accomplish the cutting to the polyp through the line of cut this moment, then will break off the power supply, drive the magnetism post and retrieve under the human effect of plastics spring, the baffle forms to block this moment, thereby will feel the meat fixed column firmly, avoid the polyp fixed unreliable, make the polyp can take out fast, improve patient's recovery effect.

2. This kind of cutting and taking out convenient polyp snare, through the anesthesia trachea that sets up, the buckle, the metal pole, the rubber buffer, the medicine hole is spouted to tubule and buckling, with outside anesthetic gas and anesthesia trachea switch-on, promote the buckle forward, drive the rubber buffer through the metal pole and promote forward the inside production pressure that makes tubule and cylinder, thereby it impels forward to drive anesthetic gas, final anesthetic gas spouts the one end blowout of medicine hole and tubule from buckling, the medicine spouts and anaesthetizes the patient in the affected part, alleviate patient's misery.

3. This kind of cutting and take out convenient polyp snare, through the accent that sets up to circle, first magnet, second magnet and nest block, rotate to transfer to the circle and drive the second magnet and rotate, second magnet sets up to opposite sex magnet with first magnet to drive the nest block and take place to rotate, the nest block rotates simultaneously and drives the line of cut and rotates, conveniently adjusts the direction of cutting line, and transfers to the circle position near apart from the lasso, adjusts conveniently and the precision is high.

4. This kind of cut and take out convenient polyp snare, through silica gel hose and the buckle that sets up, silica gel hose and buckle keep fixed connection, and the length of silica gel hose can change, avoids metal pole and human contact to cause the electric leakage, and the security improves.

5. This kind of cutting with take out convenient polyp snare spouts medicine hole and tubule through the buckling that sets up, and anesthetic gas spouts medicine hole blowout from buckling and has increased the angle and the direction of spouting the medicine, and the angle of buckling can avoid blockking up the backward flow for anesthetic effect promotes.

6. This kind of cutting with take out convenient polyp snare, through cylinder, tubule, line of cut and the insulator head that sets up, stretch into the internal in-process of patient with the tubule, the insulator head is through the top that the line of cut received the tubule, avoids sharp line of cut and irrelevant body tissue to produce the contact, can effectively avoid producing the harm to body tissue inserting the process.

7. This kind of cutting and take out convenient polyp snare, through cylinder, tubule, silica gel hose, buckle, metal pole, plush copper, line of cut and the insulator head that sets up, through the slip back and forth that the pull buckle drove the metal pole, and then realize retrieving of opening on line of cut top, easy operation, control is convenient, the convenience that hoisting device used.

8. This kind of cut with take out convenient polyp snare, through spout, metal pole and the circular telegram joint that sets up, the circular telegram joint produces the slip at the inner wall of spout for no matter metal pole can all realize the control to cutting wire and electro-magnet in the in-process of cutting in the optional position.

9. This kind of cutting and take out convenient polyp snare, through tubule, cover block and the fixed block that sets up, the fixed block is fixed the cover block in a region for the cover block can not lead to the fact the jam to the inner wall of tubule when can driving the line of cut pivoted, guarantees that the entering of anesthetic gas is convenient when carrying out polyp affected part local anesthesia.

10. This kind of cut with take out convenient polyp snare, through the circular telegram joint, metal pole, plush copper and the line of cut that set up, the outer wall design of line of cut is the polygon prism, and the outer wall of polygon prism is sharp, and is convenient to the cutting of polyp when the pull line of cut, promotes the cutting effect of many polyps, shortens the time, reduces operation time.

Drawings

FIG. 1 is a perspective diagrammatic illustration of the present invention;

FIG. 2 is a schematic sectional front view of the electromagnet portion of the present invention;

FIG. 3 is a schematic cross-sectional front view of the present invention;

FIG. 4 is a perspective view of a cut line portion of the present invention;

FIG. 5 is a perspective view of a metal rod portion of the present invention;

FIG. 6 is an enlarged view of portion A of FIG. 3;

figure 7 is a perspective view of the barbed portion of the present invention.

In the figure: 1 insulating head, 2 mounting grooves, 3 electromagnets, 4 plastic springs, 5 magnetic columns, 6 baffles, 7 barbs, 8 puncture needles, 9 cutting lines, 10 loop blocks, 11 first magnets, 12 elastic rods, 13 second magnets, 14 thin tubes, 15 sleeves, 16 anesthetic gas tubes, 17 direction adjusting rings, 18 fixing plates, 19 needle cylinders, 20 power-on connectors, 21 silica gel hoses, 22 retaining rings, 23 metal rods, 24 sliding grooves, 25 rubber plugs, 26 raised heads, 27, 28 fixing blocks, 29 jacks and 30 accommodating grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the needle cartridge 19, the tubule 14, and the cutting line 9 are included, wherein fig. 1 and 3 only schematically illustrate the tubule 14 and do not limit the shape thereof. One end of a needle cylinder 19 is connected with a thin tube 14 in a sleeved mode, a cutting line 9 is connected with the inner walls of the needle cylinder 19 and the thin tube 14 in a sleeved mode, a silica gel hose 21 is bonded to one end of the needle cylinder 19, a retaining ring 22 is bonded to one end of the silica gel hose 21, a drawing mechanism is arranged on the outer wall of one side of the retaining ring 22, an insulating head 1 is bonded to one end of the cutting line 9, a mounting groove 2 is formed in the inner wall of the insulating head 1, an electromagnet 3 is bonded to the inner wall of one side of the mounting groove 2, the cutting line 9 is in conductive connection with the electromagnet 3 in a known mode, a plastic spring 4 is bonded to the outer wall of one side of the electromagnet 3, a magnetic column 5 is bonded to one end of the plastic spring 4, the magnetic column 5 is connected with the inner wall of the mounting groove 2 in a sleeved mode, a puncture needle 8 is fixed to the outer wall of the bottom of the magnetic column 5 through a screw, a containing groove 30 is formed in the outer wall of the puncture needle 8, and an agnail 7 and a baffle 6 are connected through a hinge, elastic rod 12 is bonded on one side of the outer wall of the top of barb 7 and baffle 6, one end of elastic rod 12 is bonded with the inner wall of accommodating groove 30, inserting hole 29 is opened on the inner wall of accommodating groove 30, one side of the outer wall of needle cylinder 19 is provided with electricity connecting mechanism, and the outer wall of cutting line 9 is provided with direction adjusting mechanism, one section of thin tube 14 is broken, sleeve 15 is bonded on the broken part, and the air inlet hole is opened on the outer wall of one side of sleeve 15, and anesthetic tube 16 is sleeved on the inner wall of the air inlet hole.

Furthermore, the outer wall of the syringe 19 is fixed with a fixing plate 18 by bonding, and the fixing plates 18 are symmetrically arranged, so that the control is convenient and the grasping is reliable in the actual use process.

Furthermore, the drawing mechanism comprises a metal rod 23, one end of the metal rod 23 is connected with the outer wall of one side of the retaining ring 22 in an adhering mode, so that the metal rod 23 and the retaining ring 22 are connected into a whole, the whole is linked, and the control is convenient.

Furthermore, a rubber plug 25 is fixedly bonded on the outer wall of the metal rod 23, a short shaft is bonded on one end of the metal rod 23, a raised head 26 is rotatably sleeved on one end of the short shaft, the raised head 26 is fixedly connected with the other end of the cutting line 9, the short shaft is conductive, so that the metal rod 23 is connected with the raised head 26 through the short shaft, a sliding groove 24 is formed in one side of the outer wall of the metal rod 23, the metal rod 23 slides on the inner wall of the sliding groove 24, and the current can be always conducted to the positions of the cutting line 9 and the electromagnet 3 through the metal rod.

Further, the power connection mechanism comprises a power connection joint 20, the power connection joint 20 is connected with the needle cylinder 19 in a sleeved mode, and the connection position of the power connection joint 20 and the needle cylinder 19 forms a seal.

Further, one end of the electric contact 20 is held in contact with the inner wall of the bottom of the slide groove 24 of the metal rod 23, and the metal rod 23 is slidably connected with the inner wall of the slide groove 24.

Further, transfer to the mechanism including line of cut 9, line of cut 9 outer wall cup joints sleeve block 10, and first recess has been seted up to one side outer wall of sleeve block 10, and the inner wall of first recess is fixed with first magnet 11 through bonding.

Further, the outer wall of tubule 14 has cup jointed and has transferred to circle 17, transfers to the one side outer wall of circle 17 and seted up the second recess, and the inner wall of second recess is fixed with second magnet 13 through bonding, and first magnet 11 sets up to opposite polarity magnet with second magnet 13, and first magnet 11 and second magnet 13 attract each other.

Further, a fixed block 28 is bonded on the inner wall of the thin tube 14, the sleeve block 10 is limited at the center of the fixed block 28, the fixed block 28 fixes the sleeve block 10 in one area, the sleeve block 10 can rotate and slide in the fixed area of the fixed block 28, and a certain gap is kept between the sleeve block 10 and the inner wall of the thin tube 14, so that the gas can flow conveniently.

Further, the outer wall of one end outer wall both sides of tubule 14 has been seted up and has been buckled and spout medicine hole 27, and the medicine hole 27 is spouted in the buckling can be so that carrying out the anesthesia in-process, and the gaseous blowout angle scope of anesthesia enlarges, promotes the anesthesia effect to the polyp position, and the shape design of buckling of spouting medicine hole 27 simultaneously makes difficult the jam, guarantees that the anesthesia process can continuously effectively go on.

When in use, the bottom of the insulating head 1 is contacted with one end of the thin tube 14, the cutting line 9 is completely contained in the inner wall of the thin tube 14, the thin tube 14 extends to the position of an affected part, external anesthetic gas is communicated with the anesthetic gas tube 16, the retaining ring 22 is pushed forwards, the retaining ring 22 drives the rubber plug 25 to push forwards through the metal rod 23, so that the interiors of the thin tube 14 and the needle cylinder 19 generate pressure, thereby driving the anesthetic gas to push forwards, finally the anesthetic gas is sprayed out from the bent spraying hole 27 and one end of the thin tube 14, the medicine is sprayed on the affected part to perform anesthesia on a patient, the pain of the patient is relieved, the metal rod 23 drives the raised head 26 to push forwards, so that the cutting line 9 drives the insulating head 1 to push out, one end of the cutting line 9 is opened in a known manner, the turning ring 17 is rotated to drive the second magnet cutting line 13, the second magnet 13 and the first magnet 11 are set as opposite magnets, thereby driving the sleeve block 10 to rotate, meanwhile, the sleeve block 10 rotates to drive the cutting line 9 to rotate, the direction of the cutting line 9 is convenient to adjust, the polyp is fixed on the inner wall through the cutting line 9, then the polyp is connected into the power-on connector 20 through external current, the power-on connector 20 can slide on the inner wall of the sliding groove 24, the cutting line 9 is powered on through the metal rod 23 and the raised head 26, the electromagnet 3 is powered on through the cutting line 9, the electromagnet 3 generates magnetism which is the same as that of the magnetic column 5 after being powered on, the magnetic column 5 is pushed forwards, the baffle 6 and the barb 7 are opened under the use of the elastic rod 12 when the magnetic column 5 is pushed out previously, the polyp is pierced, the piercing point of the polyp is located at a certain distance above the cutting plane of the cutting line 9, namely the piercing point cannot be cut when the cutting line 9 is cut, and the cut polyp is prevented from being fixed firmly. At the moment, the polyp is cut through the cutting line 9, then the power supply is cut off, the magnetic column 5 is driven to be recovered under the action of a person of the plastic spring 4, the baffle 6 forms a block, so that polyp is firmly fixed and fixed, the polyp is prevented from being fixed unreliably, the polyp can be taken out quickly, the thin tube 14 is stretched into the body of a patient, the insulating head 1 is retracted to the top end of the thin tube 14 through the cutting line 9, the sharp cutting line 9 is prevented from being contacted with irrelevant body tissues, the damage to the body tissues can be effectively avoided in the inserting process, meanwhile, the metal rod 23 is driven to slide back and forth through the drawing buckle 22, the extended retraction of the top end of the cutting line 9 is further realized, the operation is simple, the control is convenient, the use convenience of the device is improved, the electric connector 20 slides on the inner wall of the sliding groove 24, and the control on the cutting line 9 and the electromagnet 3 can be realized no matter the metal rod 23 is at any position in the cutting process, through tubule 14, cover block 10 and the fixed block 18 that sets up, fixed block 18 fixes cover block 10 in a region for the cover block can not lead to the fact the jam to the inner wall of tubule 14 when can driving line of cut 9 pivoted, guarantees that the entering of anesthetic gas is convenient when carrying out polyp affected part local anesthesia.

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

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The utility model provides a cutting and take out convenient polyp snare, includes cylinder (19), tubule (14) and line of cut (9), the one end and tubule (14) of cylinder (19) are connected through cup jointing, the inner wall in cylinder (19) and tubule (14) is cup jointed in line of cut (9), its characterized in that: the one end of cylinder (19) bonds and has silica gel hose (21), the one end of silica gel hose (21) bonds and has buckle (22), one side outer wall of buckle (22) is provided with pull mechanism, the one end of line of cut (9) bonds and has insulating head (1) that is used for the polyp after the fixed cutting, mounting groove (2) have been seted up to the inner wall of insulating head (1), one side inner wall of mounting groove (2) bonds and has electro-magnet (3), one side outer wall of electro-magnet (3) bonds and has plastic spring (4), the one end of plastic spring (4) bonds and has magnetism post (5), and magnetism post (5) cup joints the inner wall in mounting groove (2), the bottom outer wall of magnetism post (5) has felting needle (8) through the fix with screw, groove (30) have been seted up to the outer wall of felting needle (8), there are barb (7) and baffle (6) through hinged joint to the inner wall of accomodating groove (30), elastic rod (12) is bonded on one side of the outer wall of the top of barb (7) and baffle (6), one end of elastic rod (12) is bonded on the inner wall of accommodating groove (30), jack (29) is opened on the inner wall of accommodating groove (30), one side outer wall of needle cylinder (19) is provided with electricity connecting mechanism, and the outer wall of cutting line (9) is provided with direction adjusting mechanism, one section disconnection of thin tube (14) is connected with sleeve (15) through bonding, and one side outer wall of sleeve (15) is opened with air inlet hole, anesthesia trachea (16) is sleeved on the inner wall of air inlet hole, the outer wall of needle cylinder (19) is fixed with fixing plate (18) through bonding, drawing mechanism comprises metal rod (23), one end of metal rod (23) is connected with one side outer wall of buckle (22) through bonding, chute (24) is opened on one side of the outer wall of metal rod (23), the power connection mechanism comprises a power connection joint (20), the power connection joint (20) is connected with the needle cylinder (19) in a sleeved mode, and one end of the power connection joint (20) is in contact with the inner wall of the bottom of a sliding groove (24) of the metal rod (23).

2. A polyp snare convenient to cut and retrieve as claimed in claim 1, wherein: the outer wall of metal pole (23) is fixed with rubber buffer (25) through the bonding, and the one end bonding of metal pole (23) has the minor axis, and the one end of minor axis has cup jointed plush copper (26).

3. A polyp snare convenient to cut and retrieve as claimed in claim 1, wherein: the direction adjusting mechanism comprises a cutting line (9), a sleeve block (10) is sleeved on the outer wall of the cutting line (9), a first groove is formed in the outer wall of one side of the sleeve block (10), and a first magnet (11) is fixedly arranged on the inner wall of the first groove through bonding.

4. A polyp snare convenient to cut and retrieve as claimed in claim 3, wherein: the outer wall of tubule (14) has cup jointed and has transferred to circle (17), transfer to the one side outer wall of circle (17) and seted up the second recess, the inner wall of second recess is fixed with second magnet (13) through bonding.

5. A polyp snare convenient to cut and retrieve as claimed in claim 4, wherein: the inner wall of the thin tube (14) is bonded with a fixed block (28), and the sleeve block (10) is limited at the center of the fixed block (28).

6. A polyp snare convenient to cut and retrieve as claimed in claim 1, wherein: the outer walls of two sides of the outer wall of one end of the thin tube (14) are provided with bent pesticide spraying holes (27).