CN208864394U - Folder closes device - Google Patents

Abstract

The utility model relates to provide a kind of press from both sides to close device, it include: mandrel, sheath, and clip, the sheath is equipped with channel, the mandrel is set in the channel of the sheath, the mandrel is connect with the clip, the clip includes at least two clamp arm, when the clip folder closes, region between two clamp arm constitutes clamping region, the clamping region includes the first pinch zones and the second pinch zones, the minimum grip spacing of first pinch zones is the first spacing, the minimum grip spacing of second pinch zones is the second spacing, first spacing is less than second spacing, wherein, first pinch zones are located at the proximal end of second pinch zones；Alternatively, first pinch zones are located at the distal end of second pinch zones.The closure surface of a wound can be taken into account to be stopped blooding, be closed the function that perforation is sutured, while guaranteeing the chucking power of clip, prevent tissue loss.

Description

Folder closes device

Technical field

The utility model belongs to medical instruments field, and in particular to a kind of folder closes device.

Background technique

The method that the hemostasis of endoscopic ligation device clinically is generallyd use to the treatment of internal bleeding at present, by bleeding Position is grabbed and is clamped, and hemostasis purpose is reached.For example, hemorrhage of digestive tract is often because of disease or accidental injury or therapeutic endoscopy After occur, if being not treated in time, can be very dangerous.Endoscopic ligation device hemostasia is said for treating digestion Blood and the surface of a wound or perforation are closed, and have many advantages, such as that wound is small, and anthemorrhagic speed is fast, few intercurrent disease.Such as Patent No. A kind of living tissue apparatus for ligating of the patent disclosures such as CN201280042482.6, CN201280042522.7, tissue ligation dress It sets and human body is entered by endoscopic forceps channel, hemorrhage of digestive tract position is grabbed and clamped, hemostasis purpose is reached, be suitable for acute Non-Variceal active hemorrhage especially has the hemorrhagic lesions of exposed blood vessel or parteriole.With the development of surgical technic It is increasing to gastral damage with the development of the progress especially operations such as alimentary canal morning cancer technology ESD, EMR, some operations The development performed the operation such as POM, full-thickness resection, Notes can actively manufacture " perforation " or damage, to treat some illnesss.

But the chucking power of conventional apparatus for ligating is inadequate, or routine apparatus for ligating relies only on clamping jaw when tissue looseness Chucking power possibly can not clamp tissue or apparatus for ligating generation falls off cause hemostasis invalid in advance, in fact it could happen that go out again Blood needs repetitive treatment or surgical operation therapy.The existing transformation to apparatus for ligating usually increases the clamping of apparatus for ligating Power, still, if excessively increasing the chucking power of apparatus for ligating clamping jaw, be likely to occur causes to be tied since the chucking power of clamping jaw is excessive Prick the concurrent secondary bleeding of position perforation.

Utility model content

Based on this, the utility model lies in that overcoming the deficiencies of existing technologies, a kind of press from both sides is provided and closes device, closure can be taken into account The surface of a wound is stopped blooding, is closed the function that perforation is sutured, while guaranteeing the chucking power of clip, prevents tissue loss.

Its technical solution is as follows:

A kind of folder closes device, comprising: mandrel, sheath and clip, the sheath are equipped with channel, and the mandrel is set to institute It states in the channel of sheath, the mandrel is connect with the clip, and the clip includes at least two clamp arm, and the clip folder closes When, the region between two clamp arm constitutes clamping region, and the clamping region includes the first pinch zones and the second pinch zones, The minimum grip spacing of first pinch zones is the first spacing, between the minimum grip spacing of second pinch zones is second Away from first spacing is less than second spacing；Wherein, first pinch zones are located at the proximal end of second pinch zones； Alternatively, first pinch zones are located at the distal end of second pinch zones.

Clamp arm described at least one of which includes intermediate plate in one of the embodiments, and the intermediate plate is towards described first The side of pinch zones is equipped with the first clamping section, and the region between first clamping section and remaining described clamp arm constitutes described first Pinch zones.Or, clamp arm described at least one of which includes intermediate plate, the side of the intermediate plate towards second pinch zones is equipped with the Two clamping sections, the region between second clamping section and remaining described clamp arm constitute second pinch zones.

First clamping section is equipped with notch in one of the embodiments,.

The notch is round and smooth in one of the embodiments, the notch and first clamping section rounding off.

The notch is at least two in one of the embodiments,.

At least two intermediate plates are equipped with first clamping section and the notch in one of the embodiments, described Position of the notch at least two intermediate plates is identical or not identical.

The clamping region further includes third pinch zones in one of the embodiments, the minimum of the third pinch zones Clamping spacing is third spacing, and the third spacing is greater than first spacing；Wherein: first pinch zones are located at described the The proximal end of two pinch zones, the third pinch zones are located at the proximal end of first pinch zones, the third spacing is greater than, is less than, Or it is equal to second spacing；Alternatively, the third pinch zones are between first pinch zones and second pinch zones, The third spacing is more than or less than second spacing；Alternatively, first pinch zones are located at the remote of second pinch zones End, the third pinch zones are located at the proximal end of second pinch zones, and the third spacing is more than or less than second spacing.

The cross section of the clamp arm is U-shaped in one of the embodiments,；Or, the cross section of the clamp arm is c-type；Or, The cross section of the clamp arm is 3 fonts；Or, the cross section of the clamp arm is camber or linear type, the camber or the straight line The middle part of type is equipped with protrusion, and the protrusion is towards first pinch zones；Or, the cross section of the clamp arm is arcuate.

The length of first pinch zones is 0.1mm to 20mm in one of the embodiments, and the first spacing K1 is 0.1mm to 1.2mm；Alternatively, the length of second pinch zones is 0.01mm to 20mm, the second spacing K2 be 0.3mm extremely 3mm；Alternatively, the length of the third pinch zones is 0mm to 10mm, the third spacing K3 is 0.3mm to 3mm.

It further includes containing tube, control unit that folder, which closes device, in one of the embodiments, the control unit and the mandrel, The proximal end of the sheath is docked, and the containing tube is docked with the distal end of the sheath, and the containing tube is equipped with channel, the mandrel It is arranged in the channel of the containing tube, the clip can be completely or partially accommodated in the channel of the containing tube.

The utility model has the beneficial effects that:

1, the clamping region includes the first pinch zones and the second pinch zones, the minimum grip spacing of first pinch zones For the first spacing, the minimum grip spacing of second pinch zones is the second spacing, and first spacing is less than between described second Away from.With larger the second pinch zones for clamping spacing for ligaturing, keep intermediate plate remote with larger the second pinch zones for clamping spacing End has bigger space de-clamping more to organize, to complete ligation function；With smaller the first pinch zones for clamping spacing For stopping blooding, the chucking power that lesser clamping gap is subject to the open texture in the first pinch zones is bigger, to complete to stop Blood function；One clip of the utility model distinguishes the first pinch zones for ligation, the second pinch zones for hemostasis, a folder The compatible haemostatic effect of son and ligation effect.

Wherein, first pinch zones are located at the proximal end of second pinch zones；Alternatively, first pinch zones are located at institute State the distal end of the second pinch zones.It can according to need the positional relationship of design the first pinch zones and the second pinch zones, so that folder closes Device is adapted to different operation requirements, guarantees ligation and haemostatic effect.

Clip includes at least two clamp arm, when clip includes two clamp arm, clamps spacing and refers to cutting for clamping region Spacing on face between two clamp arm.When clip includes more than two clamp arm, clamps spacing and refer to clamping region section Minimum widith.

2, intermediate plate described at least one of which includes intermediate plate, and the intermediate plate is equipped with first towards the side of another intermediate plate and clamps Portion, the region between first clamping section and another intermediate plate constitute first pinch zones.It is clamped by setting first Portion constitutes the first pinch zones, can be bent by the edge to intermediate plate constitute first clamping section or by welding bonding or Other connection types upper first clamping section is connected on intermediate plate or when manufacture first clamping piece at the same by first clamping piece with First clamping section is integrally formed or manufactures using other modes the first clamping section.For example, clip includes two intermediate plates, respectively Be denoted as first clamping piece, second intermediate plate (first, second is only used for simplicity of exposition, can indicate any intermediate plate, unlimited clamp piece it is suitable Sequence, orientation), it may is that first clamping piece is equipped with the first clamping section, the first clamping section is stretched relative to second intermediate plate to another intermediate plate Out, second intermediate plate does not set the first clamping section, the first pinch zones between the clamping section and second intermediate plate of first clamping piece, in first clamping piece The second pinch zones constituted between the part and second intermediate plate of the first clamping section distal end；Either: first clamping piece is equipped with the One clamping section, second intermediate plate also are provided with the first clamping section, the first clamping section of first clamping piece and the first clamping section of second intermediate plate Between constitute the first pinch zones, be located on the part and second intermediate plate of the first clamping section distal end in first clamping piece and be located at first and clamp The part of portion distal end constitutes the second pinch zones.

Alternatively, clamp arm described at least one of which includes intermediate plate, the side of the intermediate plate towards second pinch zones is set There is the second clamping section, the region between second clamping section and remaining described clamp arm constitutes second pinch zones.Second folder The manufacturing method in tight portion is identical or different with the first clamping section.

Preferably, the first clamping section and the second clamping section are equipped on intermediate plate simultaneously, the height of first clamping section is greater than The height of second clamping section, i.e. the first clamping section are opposite greater than the second clamping section with respect to the maximum distance that first clamping piece is protruded The maximum distance of first clamping piece protrusion, so that the first spacing is less than the second spacing.

Be not limited to using the first clamping section is set, by the way of the second clamping section come so that the first spacing less than the second spacing, Intermediate plate bending or other modes can also be formed into the first pinch zones, the second pinch zones, are less than as long as meeting the first spacing Second spacing.

4, first clamping section is equipped with notch, and notch can increase the friction between tissue and the first clamping section, The folder that consolidation folder closes device closes effect.

5, the notch is round and smooth, and the notch and first clamping section rounding off avoid notch, the first clamping section pair Tissue causes to damage, and especially when the chucking power of clip is larger, round and smooth contact surface can between notch, the first clamping section and tissue Tissue damage or secondary bleeding are caused effectively to avoid local pressure excessive.

6, the notch is at least two, and multiple notches can further increase the contact surface of tissue and clip, alleviation group It is excessive to knit local stress.

7, at least two intermediate plates are equipped with first clamping section, and the notch is symmetrical arranged or asymmetric setting. " arranged symmetrically " refers to: using the middle line between first clamping piece and second intermediate plate as symmetry axis, the first clamping section in first clamping piece, The first clamping section is symmetrical arranged in second intermediate plate, and the notch on notch, second intermediate plate in first clamping piece is symmetrical arranged, above-mentioned " symmetrical " refers to symmetrical or is similar to symmetrically, since foozle exists always, allow there are small since foozle is made At asymmetric deviation.The notch of symmetric arrays can cause " loosen, tighten, loosen, tighten ... " interval to tissue in the first pinch zones The oppressive force of arrangement increases friction, consolidates folder and closes effect.

" asymmetric setting " be relative to above-mentioned " arranged symmetrically ", notch not according to being symmetrical arranged, can with dispersion tissue by To the oppressive force of clamping, alleviate structural stress.

8, the clamping region further includes third pinch zones, and the minimum grip spacing of the third pinch zones is between third Away from third spacing is greater than first spacing.

The third pinch zones are located at the proximal end of first pinch zones, and third spacing can be greater than, equal to or less than Two spacing make clamping region constitute the structure of " wide-narrow-wide ", meanwhile, third pinch zones can be mentioned in the proximal end of the first pinch zones For certain yielding space, tissue is avoided to strut clip；

Alternatively, third pinch zones, between the first pinch zones and the second pinch zones, third spacing is greater than the second spacing, make Clamping region constitutes the structure of " wide-wider-narrow "；

Alternatively, third pinch zones, between the first pinch zones and the second pinch zones, third spacing makes less than the second spacing Clamping region constitutes the structure of " wide-in-narrow "；

Alternatively, the first pinch zones are located at the distal end of the second pinch zones, third pinch zones are located at the proximal end of the second pinch zones, the Three spacing are greater than the second spacing, and clamping region is made to constitute the structure of " narrow-wide-wider "；

Alternatively, the first pinch zones are located at the distal end of the second pinch zones, third pinch zones are located at the proximal end of the second pinch zones, the Three spacing make clamping region constitute the structure of " narrow-wide-in " less than the second spacing.

9, it further includes containing tube, control unit, the proximal end pair of the control unit and the mandrel, the sheath that folder, which closes device, It connects, control unit is used to control the positional relationship of mandrel and sheath, can control mandrel and proximally or distally slides relative to sheath It is dynamic.The containing tube is docked with the distal end of the sheath, and the containing tube is equipped with channel, and the mandrel is arranged in the containing tube Channel in, when control unit control mandrel proximal movement when, clip is gradually closed, and the clip can be stored completely or partially In in the channel of the containing tube.

The intermediate plate is equipped with clip tooth, and the clip tooth is located at the distal end of second pinch zones.When the clip folder closes, two The clip tooth of the intermediate plate is mutually engaged.Clip tooth can preferably be engaged tissue, prevent tissue from falling off from clip.

Wherein, " proximal end " described herein, " distal end ", refer to along sheath length direction (or axis of sheath) or Person is the direction that human body is protruded into along sheath, is " proximal end " towards the side where operator, is controlled towards human body is protruded into The side for the treatment of is " distal end "；" proximal end " includes a part near the end face and proximal face of proximal end, and " distal end " includes distal end End face and distal end end face near a part.Certain some portion of " proximal end " or " distal end ", refer to, so-and-so is partially toward behaviour Side where making personnel is certain some portion of " proximal end ", and it is so-and-so portion that so-and-so, which is partially toward and protrudes into the side that human body is treated, " distal end " divided, certain some portion of " proximal end " includes a part near the end face and proximal face of the segment proximal, so-and-so Partial " distal end " includes a part near the end face and distal end end face of the segment distal.

Detailed description of the invention

Fig. 1 is that the utility model embodiment one presss from both sides the overall structure figure for closing device；

Fig. 2 is that the utility model embodiment one presss from both sides the partial sectional view for closing device distal end；

Fig. 3 is the structure chart one when one clip of the utility model embodiment is closed；

Fig. 4 is the structure chart of one clamping region of the utility model embodiment；

Fig. 5 is the structure chart two when one clip of the utility model embodiment is closed；

Fig. 6 is the A-A cross-sectional view of Fig. 5；

Fig. 7 is the B-B cross-sectional view of Fig. 5；

Fig. 8 is two clip closing structure figure of the utility model embodiment；

Fig. 9 is three clip closing structure figure of the utility model embodiment；

Figure 10 is four clip closing structure figure of the utility model embodiment；

Figure 11 is four clip closing structure figure of the utility model embodiment；

Figure 12 is the schematic diagram one of the cross section of one intermediate plate of the utility model embodiment；

Figure 13 is the schematic diagram two of the cross section of one intermediate plate of the utility model embodiment；

Figure 14 is the scale diagrams one of one intermediate plate of the utility model embodiment；

Figure 15 is the scale diagrams two of one intermediate plate of the utility model embodiment；

Figure 16 is the scale diagrams of five intermediate plate of the utility model embodiment.

Description of symbols:

1, clip；10A, the first clamp arm, 10B, the second clamp arm, 11A, first clamping piece；101, the first pinch zones, 102, second Pinch zones, 103, third pinch zones, 11B, second intermediate plate；The first clamping section of 111A, first clamping piece；111B, second intermediate plate First clamping section；The second clamping section of 112A, first clamping piece；The second clamping section of 112B, second intermediate plate；113A, first clamping piece Clip tooth；The clip tooth of 113B, second intermediate plate；The notch of 114A, first clamping piece；The notch of 114B, second intermediate plate；2, sheath, 210, containing tube, 211, blocking portion, 220, mandrel；3, control unit；K1, the first spacing, K2, the second spacing, K3, third spacing, K4, the 4th spacing.

Specific embodiment

The utility model is described in further detail below, however, the embodiments of the present invention are not limited thereto.

Embodiment one

As described in Fig. 1,2, it includes clip 1, sheath 2, containing tube 210, control unit 3 that folder, which closes device, and sheath 2 is equipped with channel, Containing tube 210 is docked with the distal end of sheath 2, and containing tube 210 is equipped with channel, and the channel of containing tube 210 and the channel of sheath 2 connect It is logical, mandrel 220 be arranged in sheath 2, containing tube 210 channel in, mandrel 220 is connect with clip 1.Control unit 3 and mandrel 220, The proximal end of sheath 2 is docked, and control unit 3 can control 220 phase of mandrel for controlling positional relationship of the mandrel 220 relative to sheath 2 Sheath 2 is proximally or distally slided.When control unit 3 controls 220 proximal movement of mandrel, clip 1 is gradually closed, folder Son 1 can be completely or partially accommodated in the channel of containing tube 210.The distal end of containing tube 210 is equipped with blocking portion 211, blocking portion 211 prevent clip 1 from deviating from from the distal end of containing tube 210.

Clip 1 includes two clamp arm in the present embodiment, and (first, second is only used for by the first clamp arm 10A and the second clamp arm 10B Simplicity of exposition can indicate any clamp arm, sequence, the orientation of unlimited clamp arm), the first pinch zones are constituted between two clamp arm 101, the second pinch zones 102.But it is not limited to the present embodiment, also may include three or more clamp arm.First clamp arm 10A includes the One intermediate plate 11A, set on the first clamping section 111A and the second clamping section 112A of first clamping piece 11A, set on the folder of first clamping piece 11A Tooth 113A.Second clamp arm 10B includes second intermediate plate 11B, set on the first clamping section 111B of second intermediate plate 11B and the second clamping section 112B, the clip tooth 113B set on second intermediate plate 11B.

As shown in FIG. 3 to 7, in the case where no trapping human organizes, when the folder of clip 1 closes, the first clamp arm 10A and second Region between clamp arm 10B constitutes clamping region, and clamping region includes the first pinch zones 101 and the second pinch zones 102, the first folder Tight area 101 is located at the proximal end of the second pinch zones 102, and the minimum grip spacing of the first pinch zones 101 is the first spacing K1, the second folder The minimum grip spacing in tight area 102 is the second spacing K2, and the first spacing K1 is less than the second spacing K2.First pinch zones 101, second Pinch zones 102 can be located in containing tube 210 or be located at outside containing tube 210.

Region between first clamping piece 11A and second intermediate plate 11B constitutes clamping region, and clamping region includes the first pinch zones 101 and second pinch zones 102.As shown in figure 4, dash area is respectively the first pinch zones 101 and the second pinch zones 102, first Pinch zones 101 are connected to the second pinch zones 102.

First clamping piece 11A is equipped with the first clamping section 111A, second intermediate plate 11B of protrusion towards the side of second intermediate plate 11B The first clamping section 111B of protrusion, the first clamping section 111A of first clamping piece 11A and the are equipped with towards the side of first clamping piece 11A Region between the first clamping section 111B of two intermediate plate 11B constitutes the first pinch zones 101.

First clamping piece 11A is equipped with the second clamping section 112A of protrusion, the second clamping section towards the side of second intermediate plate 11B 112A is located at the distal end of the first clamping section 111A.Second intermediate plate 11B is equipped with the second folder of protrusion towards the side of first clamping piece 11A Tight portion 112B, the second clamping section 112B are located at the distal end of the first clamping section 111B.The second clamping section 112A of first clamping piece 11A and Region between the second clamping section 112B of second intermediate plate 11B constitutes the second pinch zones 102.

The height of first clamping section 111A, 111B is greater than the height of second clamping section 112A, 112B.For first clamping piece 11A, the first clamping section 111A are greater than the second clamping section 112A with respect to first clamping piece with respect to the maximum distance that first clamping piece 11A protrudes The maximum distance of 11A protrusion；For second intermediate plate 11B, the first clamping section 111B is with respect to the maximum distance that second intermediate plate 11B protrudes Maximum distance greater than the second clamping section 112B with respect to second intermediate plate 11B protrusion；So that between the first spacing K1 is less than second Away from K2.

It can be bent by the edge to first clamping piece 11A, second intermediate plate 11B and constitute first clamping section 111A, 111B, the Two clamping section 112A, 112B, or connected on first clamping piece 11A, second intermediate plate 11B by welding bonding or other connection types First clamping section 111A, 111B, second clamping section 112A, 112B are connected, or in manufacture first clamping piece 11A, second intermediate plate 11B When simultaneously by first clamping section 111A, 111B, second clamping section 112A, 112B be integrally formed, or using other modes come Manufacture first clamping section 111A, 111B, second clamping section 112A, 112B.

First pinch zones 101 are located at the proximal end of the second pinch zones 102, and the first spacing K1 is less than the second spacing K2.With compared with There are intermediate plate distal end in big the second pinch zones 102 for clamping spacing for ligaturing, with larger the second pinch zones 102 for clamping spacing Bigger space de-clamping is more organized, to complete ligation function；It is used with smaller the first pinch zones 101 for clamping spacing In hemostasis, the chucking power that lesser clamping gap is subject to the open texture in the first pinch zones 101 is bigger, to complete to stop Blood function；One clip 1 of the utility model distinguishes the first pinch zones 101 for ligation, the second pinch zones for hemostasis 102, compatible haemostatic effect of clip 1 and ligation effect.

Rounding off between first clamping section 111A, 111B and second clamping section 112A, 112B, avoids damage to tissue.

As shown in Fig. 3,6,7, the distal end of intermediate plate is additionally provided with clip tooth 113A, 113B, and clip tooth 113A, 113B is located at second and clamps The distal end in area 102.When the folder of clip 1 closes, clip tooth 113A, the 113B phase of two intermediate plates is engaged.Clip tooth 113A, 113B can be better It is engaged tissue, prevents tissue from falling off from clip 1.

It as shown in Figure 12,13, is the first clamp arm 10A, the second clamp arm 10B is tied referring to the cross section of A-A cross-sectional fashion in Fig. 5 Structure.First clamp arm 10A include first clamping piece 11A and be set to the first clamping section first clamping piece 11A 111A, the second clamp arm 10B packet Include second intermediate plate 11B and the first clamping section 111B set on second intermediate plate 11B.First clamp arm 10A, the second clamp arm 10B are It the cross section of one pinch zones 101 can be there are many form.Wherein:

As shown in Figure 12 (a), direction up and down shown in 2 (a) referring to Fig.1, the first clamp arm 10A, the second clamp arm 10B Cross section is asymmetric up and down, but central symmetry.The cross section of first clamp arm 10A entirety is the c-type with gap, the opening of c-type Upwardly toward clamping region, the left end of first clamping piece 111A is equipped with the first clamping section, so that the right side of the c-type of the first clamp arm 10A There is a gap；Similar, the cross section of the second clamp arm 10B is the c-type with gap, and Open Side Down for c-type towards pinch zones The right side in domain, second intermediate plate 11B is equipped with the first clamping section 111B, so that having a gap on the left of the c-type of the second clamp arm 10B；It slits Mouthful setting so that the first clamp arm 10A, the second clamp arm 10B or more be asymmetric, central symmetry.

As shown in Figure 12 (b), direction up and down shown in 2 (b) pictures referring to Fig.1, the first clamp arm 10A, the second clamp arm The cross section of 10B is symmetrical above and below, left-right asymmetry；The cross section of first clamp arm 10A is the c-type with gap, the opening of c-type to On towards clamping region, the right side of first clamping piece 11A is equipped with the first clamping section 111A, so that the left side of the c-type of the first clamp arm 10A There is a gap；The cross section of second clamp arm 10B is the c-type with gap, and Open Side Down for c-type towards clamping region, the second folder The right end of piece 11B is equipped with the first clamping section 111B, so that having a gap on the left of the c-type of the second clamp arm 10B；The setting of gap makes It is symmetrical above and below, left-right asymmetry to obtain the first clamp arm 10A, the second clamp arm 10B.

As shown in Figure 13 (a), the first clamp arm 10A, the cross section of the second clamp arm 10B are symmetrical above and below.The cross of first clamp arm 10A Section be it is U-shaped, U-shaped opening upwards are towards clamping region；The cross section of second clamp arm 10B is U-shaped, U-shaped Open Side Down court To clamping region.The two sides of first clamping piece 11A are respectively provided with one first clamping section 111A, and the two sides of the second clamp arm 10B are respectively provided with one First clamping section 111B.

The first clamp arm 10A, the cross section of the second clamp arm 10B as shown in Figure 13 (b) are symmetrical above and below.The cross of first clamp arm 10A Section is c-type, and the opening upwards of c-type are towards clamping region；The cross section of second clamp arm 10B is c-type, c-type Open Side Down court To clamping region.The two sides of first clamping piece 11A are respectively provided with one first clamping section 111A, and the two sides of the second clamp arm 10B are respectively provided with one First clamping section 111B.

As shown in Figure 13 (c), (g), the cross section of first clamping piece 11A is linear type, and linear type is set close to the position at middle part There is protrusion, which is the first clamping section 111A, and the first clamping section 111A is upwardly toward clamping region；The cross of second intermediate plate 11B Section is linear type, and linear type is equipped with protrusion close to the position at middle part, which is the first clamping section 111B, the first clamping section 111B downwardly clamping region.

As shown in Figure 13 (d), the cross section of first clamping piece 11A is camber, and camber is equipped with protrusion close to the position at middle part, should Protrusion is the first clamping section 111A, and the first clamping section 111A is upwardly toward clamping region；The cross section of second intermediate plate 11BB is arc Type, camber are equipped with protrusion close to the position at middle part, which is the first clamping section 111B, and the first clamping section 111B is downwardly pressed from both sides Tight region.

As shown in Figure 13 (e), the first clamp arm 10A, the second clamp arm 10B cross section be 3 fonts.The cross of first clamp arm 10A Section is 3 fonts for rotating clockwise 90 degree；The cross section of first clamping piece 11B is 3 fonts being rotated by 90 ° counterclockwise.

As shown in Figure 13 (f), the first clamp arm 10A, the second clamp arm 10B cross section be arcuate, the profile of arcuate is by an arc Shape and a straight line enclose.For the cross section of the first clamp arm 10A, the straight line of arcuate is upwardly toward clamping region；For The cross section of two clamp arm 10B, the straight line of arcuate downwardly clamping region.

In the present embodiment, direction up and down shown in 3 pictures referring to Fig.1, cross section shown in Figure 13 is symmetrical above and below, but It is not limited to the present embodiment, it can also be asymmetric using various cross-sectional structures shown in Figure 13, but up and down.

The present embodiment such as Figure 12, in 13, clamp arm includes intermediate plate and the first clamping section, the second clamping section on intermediate plate, First clamping piece, the first clamping section in first clamping piece, second intermediate plate, the first folder in second intermediate plate are distinguished on the cross section of clamp arm Tight portion, but be not limited to the present embodiment, in other embodiments, any position can be using shown in Figure 12,13 in clamp arm The whole cross section of cross-sectional structure, clamp arm is as shown in Figure 12,13, does not distinguish intermediate plate and the first clamping section.

Preferably, it is closed clip 1, as shown in Figure 14,15:

The length C1 of first pinch zones is 0.1mm to 20mm；Preferably, can using 0.2mm, 0.5mm, 1mm, 2mm, 5mm, 8mm, 10mm, 15mm, 18mm etc..First spacing K1 is 0.1mm to 1.2mm；Preferably, can using 0.2mm, 0.5mm, 0.7mm, 1mm, 1.1mm etc..The height H1 of first clamping section 111A, 111B is 0.1mm to 2mm, it is preferred that can be used 0.5mm, 1mm, 1.5mm, 1.8mm etc..

The length C1 of second pinch zones be 0.01mm to 20mm, it is preferred that can using 0.05mm, 0.1mm, 0.2mm, 0.5mm, 1mm, 2mm, 5mm, 8mm, 10mm, 15mm, 18mm etc..Second spacing K2 is 0.3mm to 3mm；Preferably, it can use 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm etc..The height H2 of second clamping section is 0.1mm to 1.5mm, it is preferred that can be used 0.2mm, 0.5mm, 0.8mm, 1mm, 1.2mm etc..

Correspondingly, the length of first clamping section 111A, 111B be 0.1mm to 20mm, it is preferred that can using 0.2mm, 0.5mm, 1mm, 2mm, 5mm, 8mm, 10mm, 15mm, 18mm etc..The length of second clamping section is 0mm to 20mm, it is preferred that can Using 0.2mm, 0.5mm, 1mm, 2mm, 5mm, 8mm, 10mm, 15mm, 18mm etc..

The suture ligature device of Patent No. CN201621344652.8, US15597967 patent disclosure passes through on intermediate plate Setting suture tooth or overhead structure, but will lead to 1 device of clip ligation power in clamping organizational process concentrate on clip tooth 113A, 113B and suture tooth or overhead structure at, intermediate plate unbalance stress and occur 1 device of clip ligation structure property it is unstable.Therewith not Together, the first pinch zones 101 and the second pinch zones 102 of two different spacing are set in the present embodiment, it can be to avoid sharp clip tooth Occlusion tear tissue, while guaranteeing that necessary chucking power realizes hemostasis and ligation.

In the present embodiment, by the way that the first clamping section is arranged on intermediate plate, the second clamping section forms the first pinch zones, second Pinch zones, but be not limited to the present embodiment, in other embodiments, first can be formed by way of the bending to clamp arm Pinch zones, the second pinch zones.

Embodiment two

Embodiment two and the difference of embodiment one are:

As shown in figure 8, second intermediate plate 11B is equipped with the first clamping section 111B of protrusion towards the side of first clamping piece 11A, the One intermediate plate 11A does not set the first clamping section 111A, the area between the first clamping section 111B and first clamping piece 11A of second intermediate plate 11B Domain constitutes the first pinch zones 101.

Second intermediate plate 11B is equipped with the second clamping section 112B of protrusion, the second clamping section towards the side of first clamping piece 11A 112B is located at the distal end of the first clamping section 111B.First clamping piece 11A does not set the second clamping section 112A.The second of second intermediate plate 11B Region between clamping section 112B and first clamping piece 11A constitutes the second pinch zones 102.

Embodiment three

Embodiment three and the difference of embodiment one are:

As shown in figure 9, clamping region further includes third pinch zones 103, third pinch zones 103 are located at the first pinch zones 101 Proximal end, the minimum grip spacing of third pinch zones 103 is third spacing K3, and third spacing K3 is greater than the first spacing K1.Third Spacing K3 can make clamping region constitute the structure of " wide-narrow-wide " greater than, equal to or less than the second spacing K2.Third clamps Area 103 can provide certain yielding space in the proximal end of the first pinch zones 101, and tissue is avoided to strut clip 1.Third pinch zones 103 can be located in containing tube 210 or be located at outside containing tube 210.

Similar with the metering method of the first pinch zones, the second pinch zones, the length of third pinch zones is 0mm to 10mm, It preferably, can be using 0.01mm, 0.1mm, 0.1mm, 0.2mm, 0.5mm, 1mm, 2mm, 5mm, 8mm etc..Third spacing K3 is 0mm to 3mm, it is preferred that can be using 0.01mm, 0.1mm, 0.1mm, 0.2mm, 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm etc..

Be not limited to the present embodiment, it is also possible that third pinch zones 103 be located at the first pinch zones 101 and the second pinch zones 102 it Between, third spacing K3 is greater than the second spacing K2, and clamping region is made to constitute the structure of " wide-wider-narrow "；

Alternatively, third pinch zones 103, between the first pinch zones 101 and the second pinch zones 102, third spacing K3 is less than Second spacing K2 makes clamping region constitute the structure of " wide-in-narrow "；

Alternatively, the first pinch zones 101 are located at the distal end of the second pinch zones 102, third pinch zones 103 are located at the second pinch zones 102 proximal end, third spacing K3 are greater than the second spacing K2, and clamping region is made to constitute the structure of " narrow-wide-wider "；

Alternatively, the first pinch zones 101 are located at the distal end of the second pinch zones 102, third pinch zones 103 are located at the second pinch zones 102 proximal end, third spacing K3 make clamping region constitute the structure of " narrow-wide-in " less than the second spacing K2.

Example IV

The difference of example IV and embodiment one is:

As shown in Figure 10, the first clamping section 111A of first clamping piece 11A is equipped with notch 114A, and notch 114A can increase people Friction between body tissue and the first clamping section 111A, the folder that consolidation folder closes device close effect.

The first clamping section 111B of second intermediate plate 11B is equipped with notch 114B, and notch 114B can increase tissue and the Friction between one clamping section 111B, the folder that consolidation folder closes device close effect.

Notch 114A, 114B at least two, multiple notch 114A, 114B can further increase tissue and clip 1 It is excessive to alleviate tissue local stress for contact surface.As shown in Figure 10, notch 114A, 114B be symmetrical arranged (it is without being limited thereto, can also be with Asymmetric setting) it is symmetrical arranged, " arranged symmetrically " refers to: being symmetrical with the middle line between first clamping piece 11A and second intermediate plate 11B Axis, the upper first clamping section 111B of the first clamping section 111A, second intermediate plate 11B on first clamping piece 11A are symmetrical arranged, first clamping piece The notch 114B on notch 114A, second intermediate plate 11B on 11A is symmetrical arranged, above-mentioned " symmetrical " to refer to symmetrically or be similar to pair Claim, since foozle exists always, the asymmetry deviation as caused by foozle that allows that there are small.It is symmetrically arranged Notch 114A, 114B can cause " loosen, tighten, loosen, tighten ... " spaced oppressive force in 101 pairs of the first pinch zones tissue, Increase friction, consolidates folder and close effect.

It is not limited to the scheme of above-mentioned Figure 10, can also as shown in figure 11, notch 114A, 114B are round and smooth, notch 114A, 114B With first clamping section 111A, 111B rounding off, notch 114A, 114B, first clamping section 111A, 111B is avoided to cause tissue Damage, especially when the chucking power of clip 1 is larger, circle between notch 114A, 114B and first clamping section 111A, 111B and tissue Sliding contact surface is it is possible to prevente effectively from local pressure is excessive and causes tissue damage or secondary bleeding.Between notch 114A, 114B Maximum grip spacing be the 4th spacing K4, the 4th spacing K4 be greater than the first spacing K1, the 4th spacing K4 can greater than, equal to, Or less than the second spacing K2.

Embodiment five

Embodiment five and the difference of embodiment one are:

As shown in figure 16, the first pinch zones 101 are located at the distal end of the second pinch zones 102.

Clamp arm 10A includes intermediate plate 11A and the first clamping section 111A and the second clamping section 112A on intermediate plate 11A, First clamping section 111A is located at the distal end of the second clamping section 112A.Clamp arm 10B includes intermediate plate 11B and on intermediate plate 11B First clamping section 111B and the second clamping section 112B, the first clamping section 111B are located at the distal end of the second clamping section 112B.

Minimum grip of the minimum grip spacing (i.e. the first spacing K1) of first pinch zones 101 less than the second pinch zones 102 Spacing (i.e. the second spacing K2) when the first pinch zones 101 with lesser first spacing clamp tissue, is organized by biggish Clamping force can be used for stopping blooding；When the second pinch zones 102 with biggish second spacing clamp tissue, tissue can be ligatured, is consolidated Gu haemostatic effect.

Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance Shield all should be considered as described in this specification.

Above embodiments only express the several embodiments of the utility model, and the description thereof is more specific and detailed, but simultaneously The limitation to utility model patent range therefore cannot be interpreted as.It should be pointed out that for the ordinary skill people of this field For member, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this reality With novel protection scope.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (11)

1. a kind of folder closes device characterized by comprising mandrel, sheath and clip, the sheath are equipped with channel, the core It is located in the channel of the sheath, the mandrel is connect with the clip, and the clip includes at least two clamp arm, the folder When sub-folder closes, the region between two clamp arm constitutes clamping region, and the clamping region includes the first pinch zones and second The minimum grip spacing of pinch zones, first pinch zones is the first spacing, and the minimum grip spacing of second pinch zones is Second spacing, first spacing are less than second spacing；

Wherein, first pinch zones are located at the proximal end of second pinch zones；Alternatively, first pinch zones are located at described the The distal end of two pinch zones.

2. folder according to claim 1 closes device, which is characterized in that clamp arm described at least one of which includes intermediate plate, institute The side for stating intermediate plate towards first pinch zones is equipped with the first clamping section, between first clamping section and remaining described clamp arm Region constitute first pinch zones；

Or, clamp arm described at least one of which includes intermediate plate, the side of the intermediate plate towards second pinch zones is equipped with second Clamping section, the region between second clamping section and remaining described clamp arm constitute second pinch zones.

3. folder according to claim 2 closes device, which is characterized in that first clamping section is equipped with notch.

4. folder according to claim 3 closes device, which is characterized in that the notch is round and smooth, the notch and described first Clamping section rounding off.

5. folder according to claim 4 closes device, which is characterized in that the notch is at least two.

6. folder according to claim 4 closes device, which is characterized in that at least two intermediate plates are equipped with described first and clamp Portion and the notch, position of the notch at least two intermediate plates are identical or not identical.

7. folder according to claim 1 closes device, which is characterized in that the clamping region further includes third pinch zones, institute The minimum grip spacing for stating third pinch zones is third spacing, and the third spacing is greater than first spacing；Wherein:

First pinch zones are located at the proximal end of second pinch zones, and the third pinch zones are located at first pinch zones Proximal end, the third spacing are greater than, are less than or are equal to second spacing；

Alternatively, the third pinch zones, between first pinch zones and second pinch zones, the third spacing is big In or less than second spacing；

Alternatively, first pinch zones are located at the distal end of second pinch zones, the third pinch zones are located at second folder The proximal end in tight area, the third spacing are more than or less than second spacing.

8. folder according to claim 1 closes device, which is characterized in that the cross section of the clamp arm is U-shaped；

Or, the cross section of the clamp arm is c-type；

Or, the cross section of the clamp arm is 3 fonts；

Or, the cross section of the clamp arm is camber or linear type, the camber or the linear middle part are equipped with protrusion, described Protrusion is towards first pinch zones；

Or, the cross section of the clamp arm is arcuate.

9. folder according to any one of claims 1 to 8 closes device, which is characterized in that the length of first pinch zones is 0.1mm to 20mm, the first spacing K1 are 0.1mm to 1.2mm；

Alternatively, the length of second pinch zones is 0.01mm to 20mm, the second spacing K2 is 0.3mm to 3mm.

10. folder according to claim 7 closes device, which is characterized in that the length of the third pinch zones be 0mm extremely 10mm, the third spacing K3 are 0.3mm to 3mm.

11. folder according to any one of claims 1 to 8 closes device, which is characterized in that further include containing tube, control unit, institute It states control unit to dock with the proximal end of the mandrel, the sheath, the containing tube is docked with the distal end of the sheath, the storage Pipe is equipped with channel, and the mandrel is arranged in the channel of the containing tube, and the clip can completely or partially be accommodated in described In the channel of containing tube.