CN208693438U

CN208693438U - A kind of medical snare

Info

Publication number: CN208693438U
Application number: CN201820352413.XU
Authority: CN
Inventors: 王秀芳
Original assignee: Affiliated Hospital of Shaoxing University
Current assignee: Affiliated Hospital of Shaoxing University
Priority date: 2018-03-15
Filing date: 2018-03-15
Publication date: 2019-04-05
Anticipated expiration: 2028-03-15

Abstract

A kind of medical snare, it is related to the field of medical instrument technology, and in particular to a kind of medical snare.It includes operation handle, turncap, flexible sleeve, electrode, lasso rope, lasso, insulated coil, the flexible string bag, the front end of the operation handle is connected by the tail end of turncap and flexible sleeve, the front end of operation handle is arranged in the electrode, the flexible sleeve is internally provided with lasso rope, the front end of the lasso rope is provided with lasso, the rear end of the lasso rope is electrically connected with the electrodes, the front end of lasso rope extends to the front end of flexible sleeve, insulated coil is surrounded on the lasso, the flexibility string bag is fixed on lasso by insulated coil, the flexible net stomacher net containing insulative filaments, degradable biological silk screen, the insulative filaments net is arranged above degradable biological silk screen.Its structure is simple, effectively shortens the operating time of operation, improves the efficiency and surgical effect of operation, alleviates the pain of sufferer.

Description

A kind of medical snare

Technical field

The utility model relates to the field of medical instrument technology, and in particular to a kind of medical snare.

Background technique

Electric snare is the common medical instrument for carrying out arthroscopic diagnosis in pipe intestinal polyp excision etc..Existing electricity snare Basic structure are as follows: the finger ring circle of slip is set on pipe handle, the front end of pipe handle and the tail end of flexibility sheath are fixed Connection, finger ring circle are connect with the energization elastic metallic yarn both ends for forming ring, and the ring end of elastic metallic yarn is prolonged by pipe handle Reach the front end of flexible sleeve.When cutting off polyp, flexible sleeve inputs affected site into the human body through endoscopic forceps channel.Work as finger ring When enclosing opposite handle forward movement, the ring end of elastic metallic yarn will be stretched out from the front end of flexible sleeve, and be made in elastic dilatation Snare is automatically formed under.By endoscopic views, snare is covered on polyp, then gradually moves back finger ring circle opposite handle Dynamic, snare gradually becomes smaller therewith, until the polyp that is locked, then by elastic metallic yarn electrified regulation, makes polyp from normal tissue It is solidified excision.

Currently, the process that lasso entangles polyp will appear the case where polyp slips when conventional snare operation, need into The multiple lasso of row, the operating time is long, influences surgical effect；It is detached from after polyp is removed with alimentary canal tube wall, rolls down to alimentary canal In, need to extract the electric snare in endoscopic forceps channel at this time, Zai Jingqian is inserted into road other endoscopic accessories, such as nipper, the string bag, mesh basket Deng finding and clamp the polyp tumbled, then polyp is exited in vitro together with scope, operating efficiency is low to be also easy to increase sufferer Pain.

Summary of the invention

The purpose of this utility model is that it is in view of the drawbacks of the prior art and insufficient, a kind of medical snare is provided, its energy It when solving the operation of current snare, needs to carry out multiple lasso, the operating time is long, influences surgical effect, while polyp is easy rolling It falls, causes operating efficiency low, be easy to increase the defect of sufferer pain.

To achieve the above object, the utility model is using following technical scheme: it include operation handle 1, turncap 2, Flexible sleeve 3, electrode 4, lasso rope 5, lasso 6, insulated coil 7, the flexible string bag 8, the front end of the operation handle 1 passes through rotation Cap 2 is connect with the tail end of flexible sleeve 3, and the front end of operation handle 1 is arranged in the electrode 4, and the inside of the flexible sleeve 3 is set It is equipped with lasso rope 5, the front end of the lasso rope 5 is provided with lasso 6, and the rear end of the lasso rope 5 and electrode 4 are electrically connected, set The front end of circle rope 5 extends to the front end of flexible sleeve 3, and insulated coil 7, the flexibility string bag 8 are surrounded on the lasso 6 It is fixed on lasso 6 by insulated coil 7, the flexibility string bag 8 includes insulative filaments net 81, degradable biological silk screen 82, institute Insulative filaments net 81 is stated to be arranged above degradable biological silk screen 82.

It also includes hangnail 9, and the hangnail 9 has multiple, and is uniformly arranged on lasso 6.When lasso 6 is shunk, pass through Hangnail 9 can easily fix the polyp in intestinal wall, and extract polyp by fulguration processing and fall into the flexible string bag 8 It is interior.

The insulated coil 7 is closely looped around on lasso 6 and forms helicoidal structure.Pass through spiral insulated coil 7 It is looped around on lasso 6, so that forming coarse face on lasso 6, enhances the frictional force of lasso 6, so that polyp is more easier It picked-off and falls into the flexible string bag 8.

The operation handle 1 includes slip ring 11, core bar 12, and the slip ring 11 is slidably arranged on core bar 12.Operation handle 1 Bucket crosses sliding slip ring 11 and controls the stretching flexible sleeve 3 of lasso 6 and open naturally, and after lasso 6 entangles polyp, electrode 4 heats lasso 6 Afterwards by polypectomy, lasso 6 can be shunk to cover polyp in the flexible string bag 8 by slip ring 11.

The lasso 6 is any one in ellipse, hexagon, semilune, diamond shape and tear drop shape.It is of different shapes Lasso can satisfy the surgical procedure under different situations, improve the efficiency of operation.

After adopting the above technical scheme, the utility model has the beneficial effect that its structure is simple, lasso is equipped with spiral helicine Insulated coil and hangnail, making lasso integrally becomes coarse, can achieve the effect that anti-slip, it is easier to entangle polyp and be cut It cuts, the polyp cut down can be wrapped and be exited in vitro with snare by the flexible string bag on lasso, effective to shorten The operating time of operation, the efficiency and surgical effect of operation is improved, the pain of sufferer is alleviated.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property It puts, is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the enlarged drawing of part A in Fig. 1；

Fig. 3 is the structural schematic diagram of the flexible string bag 8 in the utility model.

Description of symbols: operation handle 1, turncap 2, flexible sleeve 3, electrode 4, lasso rope 5, lasso 6, insulated coil 7, the flexible string bag 8, hangnail 9, slip ring 11, core bar 12, insulative filaments net 81, degradable biological silk screen 82.

Specific embodiment

Referring to shown in Fig. 1-Fig. 3, present embodiment the technical solution adopted is that: it includes operation handle 1, turncap 2, flexible sleeve 3, electrode 4, lasso rope 5, lasso 6, insulated coil 7, the flexible string bag 8, the front end of the operation handle 1 passes through rotation Turn cap 2 to connect with the tail end of flexible sleeve 3, the front end of operation handle 1, the inside of the flexible sleeve 3 is arranged in the electrode 4 It is provided with lasso rope 5, the front end of the lasso rope 5 is provided with lasso 6, and the rear end of the lasso rope 5 and electrode 4 are electrically connected, The front end of lasso rope 5 extends to the front end of flexible sleeve 3, and insulated coil 7, the flexible net are surrounded on the lasso 6 Pocket 8 is fixed on lasso 6 by insulated coil 7, and the flexibility string bag 8 includes insulative filaments net 81, degradable biological silk screen 82, The insulative filaments net 81 is arranged above degradable biological silk screen 82.

Working principle of the utility model is: finding pathological tissues in use, under the direct-view of endoscope, it is inserted into the present apparatus, It pushes slip ring to open lasso forward and entangles tissue, pull back slip ring tightening lasso and tighten tissue, high frequency is connected by electrode Galvanocautery tissue is played the role of cutting tissue and is being cut due to the spiral helicine insulated coil and hangnail on lasso Tissue is not easy to slip when tissue, and after tissue is cut, the flexible string bag of double-layer structure can be when lasso be tightened, group on lasso It knits and is tightly wrapped in inside the flexible string bag, and snare is followed to exit together in vitro.

The above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, those of ordinary skill in the art couple The other modifications or equivalent replacement that the technical solution of the utility model is made, without departing from technical solutions of the utility model Spirit and scope should all cover in the scope of the claims of the utility model.

Claims

1. a kind of medical snare, it is characterised in that: it includes operation handle (1), turncap (2), flexible sleeve (3), electrode (4), lasso rope (5), lasso (6), insulated coil (7), the flexible string bag (8), the front end of the operation handle (1) passes through turncap (2) it is connect with the tail end of flexible sleeve (3), the electrode (4) is arranged in the front end of operation handle (1), the flexible sleeve (3) Be internally provided with lasso rope (5), the front end of the lasso rope (5) is provided with lasso (6), the rear end of the lasso rope (5) with Electrode (4) is electrically connected, and the front end of lasso rope (5) extends to the front end of flexible sleeve (3), surround setting on the lasso (6) Have insulated coil (7), the flexibility string bag (8) is fixed on lasso (6) by insulated coil (7), and the flexibility string bag (8) is wrapped Net containing insulative filaments (81), degradable biological silk screen (82), the insulative filaments net (81) are arranged in degradable biological silk screen (82) top.

2. a kind of medical snare according to claim 1, it is characterised in that: it also includes hangnail (9), the hangnail (9) have multiple, and be uniformly arranged on lasso (6).

3. a kind of medical snare according to claim 1, it is characterised in that: the insulated coil (7) is closely looped around Lasso forms helicoidal structure on (6).

4. a kind of medical snare according to claim 1, it is characterised in that: the operation handle (1) includes slip ring (11), core bar (12), the slip ring (11) are slidably arranged on core bar (12).

5. a kind of medical snare according to claim 1, it is characterised in that: the lasso (6) is ellipse, hexagonal Any one in shape, semilune, diamond shape and tear drop shape.