CN209404863U - Clamping device - Google Patents

Abstract

The utility model provides a kind of clamping device, including clip, and the clip includes at least two intermediate plates, and the intermediate plate is equipped with positioning region；Containing tube, the containing tube are equipped with channel；Mandrel；Wherein, the mandrel is set in the channel of the containing tube, and the mandrel is docked with the proximal end of the clip, and when the clip is located at first position, the positioning region and the containing tube cooperate, and the clip is made to maintain first to open distance.It can be precisely controlled the opening distance of clip, realize and be precisely controlled the multistage variation that clip opens distance.

Description

Clamping device

Technical field

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

But opening-closing course of the clip of conventional apparatus for ligating is according to the mobile distance of mandrel by medical worker It by virtue of experience estimates, the opening distance of clip cannot be precisely controlled, be less able to achieve and be precisely controlled the more of clip opening distance Grade variation.

Utility model content

Based on this, the utility model lies in that overcoming the deficiencies of existing technologies, a kind of clamping device is provided, can be precisely controlled The opening distance of clip is realized and is precisely controlled the multistage variation that clip opens distance.It is bright it is possible to further be provided to operator Aobvious feedback makes it experience clip to be positioned, and operator can easily grasp the state of clip.

Its technical solution is as follows:

A kind of clamping device, comprising: clip, including at least two intermediate plates, the intermediate plate are equipped with positioning region；Containing tube, institute Containing tube is stated equipped with channel；Mandrel；Wherein, the mandrel is set in the channel of the containing tube, the mandrel and the clip Proximal end docking, when the clip is located at first position, the positioning region and the containing tube cooperation, determine the clip Positioned at first position, the clip maintains first to open distance.

In one of the embodiments, the intermediate plate be equipped with bending part be the positioning region, make the opening of the intermediate plate away from From the outside that the direction of increase is the intermediate plate, the bending part bends the distal end of the intermediate plate outward.

The outside of the positioning region is equipped with convex in one of the embodiments, when the clip is located at described first When position, the distal edge of the convex and the containing tube is along cooperation.

The clip is set to open the inside of the reduced side intermediate plate of distance, the intermediate plate in one of the embodiments, It is additionally provided with reinforcing rib, the reinforcing rib is located at the inside of the bending part.

The positioning region is equipped with reinforcing rib in one of the embodiments,.

The reinforcing rib is identical as the material of the intermediate plate in one of the embodiments, the reinforcing rib and the folder The whole thickness that piece is constituted is greater than the thickness or width of the intermediate plate；Alternatively, the material of the reinforcing rib and the intermediate plate is not Together；Alternatively, the coefficient of elasticity of the reinforcing rib is greater than the coefficient of elasticity of the intermediate plate.

The intermediate plate is equipped with sliding slot in one of the embodiments, and the containing tube is equipped with positioning pin, and the positioning pin is stretched Enter in the sliding slot, the positioning pin is slidably matched with the sliding slot, and the sliding slot has breeze way, and the breeze way constitutes institute Positioning region is stated, when the clip is located at the first position, the positioning pin is located at the breeze way.

The sliding slot includes the first glissile segment and the second glissile segment in one of the embodiments, and the breeze way is located at Between first glissile segment and second glissile segment, first glissile segment and second glissile segment pass through the buffering Section is connected；Wherein, the positioning pin the glide direction of the breeze way, the positioning pin first glissile segment cunning There is angle, the positioning pin is in the glide direction of the breeze way, the positioning pin in second sliding between dynamic direction There is angle between the glide direction of section.

An intermediate plate is equipped with including the first positioning region and the second positioning region extremely in one of the embodiments, Few two positioning regions, second positioning region is located at the distal end of first positioning region；When the clip is located at first When setting, first positioning region and the containing tube cooperate, and the clip is made to be located in the first position, the clip dimension Hold the first opening distance；When the clip is located at the second position, second positioning region and the containing tube cooperate, and make described Clip is located in the second position, and the clip maintains second to open distance；Described first, which opens distance, is greater than described the Two open distance.

In one of the embodiments, when the clip is located at the third place, the positioning region is located at the containing tube Channel in, the clip is that third opens distance, and the third, which opens distance and is less than described first, opens distance.

The utility model has the beneficial effects that:

1, clamping device, including clip, containing tube and mandrel；Containing tube is equipped with channel, and mandrel is set to the channel of containing tube Interior, mandrel can proximally or distally slide in containing tube, and mandrel is docked with the proximal end of clip, and mandrel can drive when moving Clip is proximally or distal movement.Clip can stretch out the distal end of containing tube when opening.Clip can be accommodated in storage when being closed In the channel of pipe.

Clip includes at least two intermediate plates, and intermediate plate is equipped with positioning region；Wherein, when clip is located at first position, positioning region Cooperate with containing tube, clip made to be located in first position, clip it is in stable condition, slight perturbations cannot make the opening shape of clip State changes, so that clip be made to maintain first to open distance.Above-mentioned " positioning " refers to when clip to be maintained in first position Open distance, that this positioning can be is can not releasing, be also possible to can to release (such as: can be released by mobile clip Positioning or by other means releasing positioning).

If " positioning " can not release, including but not limited to following two situation: the first, proximally pull core Axis, the cooperation that cannot destroy positioning region and containing tube lock, and cannot release " positioning ", still, push mandrel that can solve to distal end Except the cooperation locking of positioning region and containing tube, " positioning " can be released；Second, proximally or the mobile mandrel in distal end cannot solve Except the cooperation locking of positioning region and containing tube, " positioning " cannot be released.

If " positioning " can release, including but not limited to following two situation: the first, proximally pull core Axis can drive clip proximal movement, and the cooperation for releasing positioning region and containing tube positions, to release " positioning "；Second, Proximally or the mobile mandrel in distal end can release positioning region and the cooperation of containing tube positions, to release " positioning ".But work as folder Son is " positioned " when first position, and clip can be with temporary stabilization in first position, and keeps first to open distance, is come from this time The slight perturbations of mandrel cannot destroy " positioning ".

Pass through " positioning ", on the one hand, clip accurately can stagnate or rest on first position, at this time the opening of clip away from From having been preset when positioning region is arranged, can be convenient operator's operation, accurately operation obtains preset opening distance Or open distance.On the other hand, operator may can feel positioning region and containing tube when clip is moved to first position Position clamping stagnation caused by cooperation, the feeling of this positioning clamping stagnation can assist helping operator to better implement clip precise positioning Clipping operation.

2, preferred, it is positioning region that intermediate plate, which is equipped with bending part, makes the opening of intermediate plate apart from the outer of the direction intermediate plate increased Side, bending part bend the distal end of intermediate plate outward.

When clip is from distal end proximal movement, clip is gradually closed, and the opening distance of clip gradually becomes smaller, until intermediate plate Bending part against the distal end of containing tube, bending part is contained pipe blocking at this time, can generate apparent stagnation, be maintained at clip First position keeps the opening distance of clip；

When clip continues proximal movement, intermediate plate is contained the tube wall compressing of pipe inwardly, between bending part and containing tube Positioning relation be released from, bending part can be received into the channel of containing tube, and the opening distance of clip gradually becomes smaller.

On the other hand, the bending part of setting bends intermediate plate outward by bending part, in the certain situation of intermediate plate length Under, the maximum opening distance that intermediate plate distal end is opened can be increased, it is thereby possible to reduce the length of clamping device, volume.

3, the outside of positioning region is equipped with convex, when clip is located at first position, the distal edge of convex and containing tube Along cooperation, when clip is in first position, when intermediate plate is positioned under the cooperation of positioning region and containing tube, convex can be consolidated Locating effect, outside protrusion of the convex relative to intermediate plate, when clip moves to the near end, needs to overcome the blocking of convex, Therefore, setting convex can make clip preferably be maintained at first position.

4, reinforcing rib can protect and maintain the bending state of bending part, when bending part is received into containing tube, add Strengthening tendons can oppress the bending state that intermediate plate destroys bending part to avoid containing tube inner wall.If making clip from first position to distally Movement, clip is stretched out from the distal end of containing tube, clip opens distance and becomes larger, when bending part is stretched out from the distal end of containing tube, Bending part still maintains bending state under the auxiliary of reinforcing rib, cooperates bending part with the distal end of containing tube again and determines clip Position.

5, positioning region is equipped with reinforcing rib, and reinforcing rib and positioning region cooperate intensity or rigidity for strengthening positioning region.Reinforce Muscle is located near positioning region, and reinforcing rib position can be in the inside of positioning region, outside or other directions.Reinforcing rib can be direct It is connected to positioning region；Alternatively, reinforcing rib is connected on the intermediate plate of positioning region proximal direction or on the intermediate plate of distal direction.Make clip Open the inside that the reduced side of distance is intermediate plate, it is preferred that the inside that reinforcing rib is located at positioning region is equipped with reinforcing rib.

6, reinforcing rib is identical as the material of intermediate plate, and the whole thickness that the reinforcing rib and the intermediate plate are constituted is greater than described The whole width that the thickness of intermediate plate or the reinforcing rib and the intermediate plate are constituted is greater than the width of the intermediate plate；Alternatively, reinforcing Muscle is different from the material of intermediate plate, improves the performance of clip material using the material of reinforcing rib, structure；Alternatively, the reinforcing rib Coefficient of elasticity be greater than the intermediate plate coefficient of elasticity, enhance the ability of the holding bending state of bending part.Preferably, reinforcing rib Memorial alloy can be used.

Can be using by the integrally manufactured molding mode of reinforcing rib and intermediate plate, can also use includes but is not limited to use glue Reinforcing rib is installed on intermediate plate by the mode of viscous, welding, riveting etc..May exist gap between reinforcing rib and intermediate plate, is also possible to It is bonded between reinforcing rib and intermediate plate.

It can be designed to that the curvature of reinforcing rib is greater than the curvature of positioning region, bending section is maintained by the reinforcing rib of deep camber Bending state.As shown in fig. 7, the axis curvature of a curve of reinforcing rib is greater than positioning region axis curvature of a curve or reinforcing rib The curvature on the surface in outside is greater than the curvature on the surface in the outside of positioning region.

7, intermediate plate is equipped with sliding slot, and containing tube is equipped with positioning pin, and positioning pin protrudes into sliding slot, and positioning pin can run through or not pass through Sliding slot is worn, positioning pin is in sliding fit with the sliding chute, and when mandrel drives intermediate plate proximal movement, positioning pin is slided in sliding slot, positioning The motion profile of the fiting constraint intermediate plate of pin and sliding slot drives intermediate plate to be gradually closed, and the closure angle and speed of intermediate plate are by positioning The relative position of pin and sliding slot determines.Sliding slot has breeze way, and breeze way constitutes positioning region, when clip is located at first position, Positioning pin is located at breeze way, breeze way can be it is gentle or curved or other shapes, as long as intermediate plate can be blocked Closure, so that intermediate plate is maintained first position.

8, sliding slot includes the first glissile segment and the second glissile segment, breeze way be located at the first glissile segment and the second glissile segment it Between, the first glissile segment and the second glissile segment are connected by breeze way；

Wherein, positioning pin has folder in the glide direction of breeze way, positioning pin between the glide direction of the first glissile segment Angle, positioning pin have angle in the glide direction of breeze way, positioning pin between the glide direction of the second glissile segment.

When positioning pin enters breeze way from the first glissile segment, constraint sudden change of the positioning pin by sliding slot, positioning pin can To stagnate in breeze way, so that clip can be located in first position.

9, an intermediate plate is equipped at least two positioning regions including the first positioning region and the second positioning region, the second positioning Portion is located at the distal end of the first positioning region；

Be equivalent to clip to be positioned by " two-stage ": when clip is located at first position, the first positioning region and containing tube cooperate, and make Clip is located in first position, and the distance that clip opens is the first opening distance, is equivalent to clip and is positioned by the first order；Work as folder When son is located at the second position, the second positioning region and containing tube cooperate, and clip is made to be located in the second position, the distance that clip opens Distance is opened for second, clip is equivalent to and is positioned by the second level；First, which opens distance, is greater than the second opening distance.

When clip includes more than two intermediate plates, more than two positioning regions can be set on same intermediate plate；Have two One or more positioning region is arranged in each intermediate plate for a above intermediate plate.

10, the positioning relation of positioning region and containing tube can be released by the movement of clip.Make clip from first position The positioning of proximal movement, clip is released from, and intermediate plate is gradually closed, and when clip is located at the third place, positioning region is located at storage In the channel of pipe, clip is that third opens distance, and third opens distance and opens distance less than first.In above-mentioned 9th, work as folder Son moves to the near end to reach the second position since first position, and positioning relation of the clip in first position is released from, presss from both sides Son is repositioned in the second position, and the second position is equivalent to a special case of the third place at this time.But not limited to this, third position Setting can be other than first position, can release any position that first position positions, as long as energy when clip is in the third place Release clip in the positioning relation of first position.

11, clamping device includes: clip, including at least two intermediate plates, and intermediate plate is equipped with reinforcing rib；Containing tube, containing tube are set There is channel；Mandrel；Wherein, mandrel is set in the channel of containing tube, and mandrel is docked with the proximal end of clip.Reinforcing rib is used for reinforcement clamp The rigidity or intensity of piece.For example, reinforcing rib can prevent intermediate plate from deforming；Alternatively, intermediate plate is received when clip passes in and out containing tube Receive the extruding of tube wall, reinforcing rib can prevent intermediate plate to be deformed and maintain the shape of intermediate plate script.

Wherein, the planform of reinforcing rib includes but is not limited to: (its of reinforcing rib is also manufactured including using similar approach His mode) reinforcing rib is relative to intermediate plate protrusion；Alternatively, all or part of reinforcing rib is embedded on intermediate plate；Alternatively, reinforcing rib is logical The mode for crossing the similar adhesion such as gluing or welding is connected on intermediate plate；Alternatively, the part of reinforcing rib fit in intermediate plate, reinforcing rib with There are gap or reinforcing rib all to fit in intermediate plate between intermediate plate, it is very close to each other between reinforcing rib and intermediate plate；Or reinforcing rib and Intermediate plate is made by an integral material.

12, the whole thickness that reinforcing rib and intermediate plate are constituted is constituted greater than the thickness of intermediate plate or reinforcing rib with intermediate plate whole The width of body is greater than the width of intermediate plate.Reinforcing rib can be directly mounted on intermediate plate or be integrally formed with intermediate plate, by reinforcing rib With the entirety of intermediate plate composition the thickness of intermediate plate itself or width increased, to play the role of protecting intermediate plate, a side The wear resistance of intermediate plate can be improved in face, and the coefficient of elasticity of intermediate plate on the other hand can be improved.

13, intermediate plate is equipped with bending part, and the outside for the direction intermediate plate for increasing the opening distance of intermediate plate, bending part makes intermediate plate Distal end bend outward.In the identical situation of intermediate plate length, the maximum of intermediate plate distal end can be increased and open distance, to reach To the effect for reducing clip overall volume and saving raw material.And bending part is equipped with reinforcing rib.

14, reinforcing rib is identical as the material of intermediate plate, is conducive to production.

15, reinforcing rib is different from the material of intermediate plate, improves the mechanical property of intermediate plate using the reinforcing rib of different materials；Or The coefficient of elasticity of person, reinforcing rib are greater than the coefficient of elasticity of intermediate plate, to increase the coefficient of elasticity of intermediate plate, preferably maintain intermediate plate Shape avoids intermediate plate from being destroyed deformation.

Wherein, " proximal end " described herein, " distal end ", refer to along mandrel length direction (or axis of mandrel) or Person is the direction that human body is protruded into along mandrel, 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 the overall structure figure of one clamping device of the utility model embodiment；

Fig. 2 is the partial view one of one clamping device distal end of the utility model embodiment；

Fig. 3 is the enlarged view of A in Fig. 2；

Fig. 4 is the structure chart that clip is located at first position in the utility model embodiment one；

Fig. 5 is the structure chart that clip is located at the second position in the utility model embodiment one；

Fig. 6 is the partial view one of two clamping device distal end of the utility model embodiment；

Fig. 7 is the enlarged view one of B in Fig. 6；

Fig. 8 is the enlarged view two of B in Fig. 6；

Fig. 9 is the enlarged view three of B in Fig. 6；

Figure 10 is the partial view two of two clamping device distal end of the utility model embodiment；

Figure 11 is the cross-sectional view one of A-A in Fig. 7；

Figure 12 is the partial view one of three clamping device distal end of the utility model embodiment；

Figure 13 is the enlarged drawing of C in Figure 12；

Figure 14 is the partial view two of three clamping device distal end of the utility model embodiment；

Figure 15 is the partial view of four clamping device distal end of the utility model embodiment；

Figure 16 is the structure chart of four intermediate plate of the utility model embodiment；

Figure 17 is the cross-sectional view one of four clamping device distal end of the utility model embodiment；

Figure 18 is the enlarged view of D in Figure 17；

Figure 19 is the cross-sectional view two of four clamping device distal end of the utility model embodiment；

Figure 20 is the enlarged view of E in Figure 19；

Figure 21 is the cross-sectional view three of four clamping device distal end of the utility model embodiment；

Figure 22 is the enlarged view of F in Figure 21；

Figure 23 is the structure chart one of five clamping device of the utility model embodiment；

Figure 24 is the structure chart two of five clamping device of the utility model embodiment.

Description of symbols:

1, clip, 10, intermediate plate, 12, clip tooth, the 13, first bending part, the 14, second bending part, 15, reinforcing rib, 16, positioning It is convex, 17, sliding slot, the 171, first glissile segment, 172, breeze way, the 173, second glissile segment；

2, containing tube, 21, positioning pin；

3, sheath, 31, mandrel；

41, handle, 42, sliding handle.

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 to 5, clamping device, including clip 1, containing tube 2, mandrel 31, sheath 3, handle 41 and sliding Handle 42.

Containing tube 2 is set to the distal end of sheath 3, and sheath 3 is equipped with channel, and mandrel 31 is arranged in the channel of sheath 3, mandrel 31 Proximal end with sliding handle 42 connect, the proximal end of sheath 3 is connect with handle 41, slide handle 42 be slidably matched with handle 41, containing tube 2 are equipped with channel, and mandrel 31 is set in the channel of containing tube 2, and mandrel 31 can proximally or distally slide in containing tube 2, core Axis 31 is docked with the proximal end of clip 1, and mandrel 31 can drive clip 1 proximally or distal movement when moving.Proximally or distally Sliding sliding handle 42, can be with moving mandrel 31 and clip 1 proximally or distal movement.Clip 1 can stretch out containing tube 2 when opening Distal end.Clip 1 can be accommodated in the channel of containing tube 2 when being closed.

Clip 1 includes two intermediate plates 10 in the present embodiment, and two intermediate plates 10 are oppositely arranged.There are two each intermediate plate 10 is set Positioning region, respectively the first bending part 13 and the second bending part 14.Second bending part 14 is located at the distal end of the first bending part 13.Folder The distal end of piece 10 is equipped with clip tooth 12, and the clip tooth 12 of two intermediate plates 10 is mutually twisted, and conducive to clamping tissue, prevents from loosening.

The opening distance of clip 1 is the distance of 10 distal openings of intermediate plate, is referred between two clip tooths 12 in the present embodiment Distance, as shown in Fig. 2, the maximum distance of opening of clip 1 is L0.As shown in figure 3, intermediate plate 10 is equipped with bending part in the present embodiment Positioning region, the outside (lateral direction as shown in Figure 2) for the direction intermediate plate 10 for increasing the opening distance of intermediate plate 10, first Bending part 13 bends the distal end of intermediate plate 10 outward, and the second bending part 14 bends the distal end of intermediate plate 10 again outward.

When clip 1 is from distal end proximal movement, clip 1 gradually enters containing tube 2 from distal end, and intermediate plate 10 is in containing tube 2 Inner wall compressing under be gradually closed, the opening distance of clip 1 gradually becomes smaller, until the positioning region of intermediate plate 10 is against containing tube 2 Distally, positioning region is contained the blocking of pipe 2 at this time, can generate apparent stagnation, stagnates clip 1 in current location, and retaining clip The open configuration of son 1；As shown in figure 4, the first bending part 13 cooperates with containing tube 2, storage when clip 1 is located at first position The first bending part 13 is blocked in the distal end of pipe 2, stagnates clip 1 in first position, at this time the opening between 1 two intermediate plates 10 of clip Distance opens distance L1 for first and maintains first to open distance L1, is equivalent to clip 1 and is positioned by the first order；Continue proximally Mandrel 31 is pulled, makes clip 1 from first position proximal movement, positioning of the clip 1 in first position is released from, and positioning region is drawn In the channel of dynamic income containing tube 2, intermediate plate 10 is gradually closed, as shown in figure 5, second is curved when clip 1 is located at the second position Folding part 14 and containing tube 2 cooperate, and the second bending part 14 is blocked in the distal end of containing tube 2, stagnate clip 1 in the second position, and tie up The second opening distance L2 is held, clip 1 is equivalent to and is positioned by the second level；Maximum opens distance L0 > first and opens distance L1 > the second Open distance L2.In this way, realizing that clip 1 is positioned by " two-stage ", operator can accurately operate clip 1 and obtain the first opening Distance L1, second open distance L2.

" positioning " is carried out to clip 1 by the first bending part 13 of setting, the second bending part 14, on the one hand, clip 1 can be with First position, the second position are accurately stagnated or rest on, can be convenient operator's operation, accurately operation obtains preset the One, which opens distance L1 or second, opens distance L2.On the other hand, the first bending part 13 or the second bending part 14 and 2 phase card of containing tube The vibration of conjunction can also pass to operator, and operator is made to be notably perceived that clip 1 is moved to first position, the second position, Accurately implement the operation that clip 1 clamps.

Since clip 1 is positioned at first position, proximally mandrel 31 is pulled to drive 1 proximal movement of clip, clip 1 leaves The positioning relation of first position, clip 1 in first position is released from, and the positioning region is located in the channel of the containing tube, fixed 1 location of clip after position is released from is considered as the third place, wherein clip 1 reaches during proximal movement To the second position, the second position is considered as one of embodiment of the third place.

Embodiment two

Embodiment two and the difference of embodiment one are:

As shown in Fig. 6 to 9, it is the first positioning region that intermediate plate 10, which is equipped with the first bending part 13, and the inside of the first bending part 13 is set There is reinforcing rib 15.Reinforcing rib 15 can protect and maintain the bending state of the first bending part 13, when the first bending part 13 is contained When entering in containing tube 2, reinforcing rib 15 can oppress the bending that intermediate plate 10 destroys the first bending part 13 to avoid 2 inner wall of containing tube State.When clip 1 is from first position distal movement, clip 1 is stretched out from the distal end of containing tube 2, clip 1 opens distance and becomes larger, when When first bending part 13 is stretched out from the distal end of containing tube 2, first bending part 13 still maintains bending under the auxiliary of reinforcing rib 15 State cooperates the first bending part 13 with the distal end of containing tube 2 again and positions clip 1.

As shown in fig. 7, reinforcing rib 15 is identical as the material of intermediate plate 10, the whole thickness that reinforcing rib 15 and intermediate plate 10 are constituted Greater than the thickness of intermediate plate 10, increase coefficient of elasticity by increasing the thickness of cross section, to improve 13 resistance of the first bending part Shape ability prevents the first bending part 13 to be contained the extrusion deformation of pipe 2.Preferably, the entirety that reinforcing rib 15 and intermediate plate 10 are constituted Thickness be greater than intermediate plate thickness 0.001mm to 3mm, preferably 0.005mm, 0.01mm, 0.02mm, 0.05mm, 0.1mm, 0.2mm,0.5 mm,1mm,1.5mm,2mm,2.5mm.But not limited to this, other schemes, reinforcing rib 15 and intermediate plate can also be used 10 material is different, it is preferable that reinforcing rib 15 uses memorial alloy, or using material more higher than 10 coefficient of elasticity of intermediate plate come Make reinforcing rib 15.

Can be using by reinforcing rib 15 and the integrally manufactured molding mode of intermediate plate 10, can also use includes but is not limited to adopt Reinforcing rib 15 is installed on intermediate plate 10 with the mode of gluing, welding, riveting etc..May exist between reinforcing rib 15 and intermediate plate 10 Gap is also possible to be bonded between reinforcing rib 15 and intermediate plate 10.

As shown in Figure 8,9, intermediate plate 10 is located at a part of 13 proximal end of the first bending part, the angle α with a part of distal end The angle of (angle in axis or generally axially direction) be 60 ° to 180 °, preferably 70 °, 80 °, 90 °, 100 °, 110 °, 120 °, 130 °, 140 °, 150 °, 160 or 170 °；A part of reinforcing rib proximal end, the angle β (axis with a part of distal end Or the generally axially angle in direction) angle be 60 ° to 180 °, preferably 70 °, 80 °, 90 °, 100 °, 110 °, 120 °, 130 °, 140 °, 150 °, 160 or 170 °.

Wherein, α<β, α=β or α>β.As shown in Figure 8,9, α < β or α=β, the intermediate plate setting of reinforcing rib fitting at this time. Preferably, α > β.It can also be expected that the curvature of reinforcing rib 15 is greater than the curvature of positioning region, tieed up by the reinforcing rib 15 of deep camber Hold the bending state of the first bending part 13.As shown in fig. 7, the axis curvature of a curve of reinforcing rib 15 is greater than the song of positioning region central axes The curvature on the surface in the outside of rate or reinforcing rib 15 is greater than the curvature on the surface in the outside of positioning region.

The shape of the cross section of intermediate plate 10 and reinforcing rib 15 includes but is not limited to shape as shown in figure 11.

As shown in Figure 8,9, reinforcing rib 15 is posted by the inside of the first bending part 13, reinforcing rib 15 and the first bending at this time (being not limited to the present embodiment, be also possible to partly overlap) is laminated in portion 13, very close to each other between reinforcing rib 15 and the first bending part 13. The whole thickness that reinforcing rib 15 and the first bending part 13 are constituted is greater than the thickness of the first bending part 13.

But it is not limited to Fig. 8, shown in 9, as long as reinforcing rib 15 can be installed on intermediate plate 10, only reinforcing rib 15 is a certain Part is connect with intermediate plate 10 or the first bending part 13, can there is gap, reinforcing rib 15 and first between reinforcing rib 15 and intermediate plate 10 There can also be gap between bending part 13；Reinforcing rib 15 is not limited to set on the inside of the first bending part 13, can also be set to first On the outside of bending part 13 or other either directions.

Embodiment three

Embodiment three and the difference of embodiment two are:

As shown in Figure 12 to 14, the outside of the first bending part 13 is equipped with convex 16, when clip 1 is located at first position, Intermediate plate 10 is positioned under positioning region and the cooperation of containing tube 2, and convex 16 is against the distal edge edge of containing tube 2, convex 16 Locating effect can be consolidated, outside protrusion of the convex 16 relative to intermediate plate 10 when clip 1 moves to the near end, needs to overcome The blocking of convex 16, therefore, setting convex 16 can make clip 1 preferably be maintained at first position.

In the present embodiment, auxiliary of the convex 16 as the first bending part 13 further strengthens the effect of " positioning " clip, But it is not limited to the present embodiment, the first bending part 13 can be not provided with, directly convex 16 is regard as positioning region, by convex 16 Regard one of embodiment of positioning region as, it is also possible to obtain the effect of " positioning " clip.

Example IV

The difference of example IV and embodiment one is:

As shown in Figure 15 to 22, intermediate plate 10 is equipped with sliding slot 17, and containing tube 2 is equipped with positioning pin 21, and positioning pin 21 protrudes into sliding slot In 17, positioning pin 21 passes through sliding slot 17, and positioning pin 21 is slidably matched with sliding slot 17, and sliding slot 17 includes the first glissile segment 171 and the Two glissile segments 173, breeze way 172 is between the first glissile segment 171 and the second glissile segment 173, the first glissile segment 171 and Two glissile segments 173 are connected by breeze way 172.The maximum distance of opening of position as shown in figure 17 clip 1 is L0, when 31 band of mandrel When dynamic 10 proximal movement of intermediate plate, positioning pin 21 is slided in sliding slot 17, the fiting constraint intermediate plate 10 of positioning pin 21 and sliding slot 17 Motion profile drives intermediate plate 10 to be gradually closed, the closure angle and speed of intermediate plate 10 by positioning pin 21 and sliding slot 17 opposite position Decision is set, when positioning pin 21 enters breeze way 172 from the first glissile segment 171, breeze way 172 constitutes positioning region, such as Figure 19,20 institutes Show, since positioning pin 21 has between the glide direction of the first glissile segment 171 in the glide direction of breeze way 172, positioning pin 21 There is angle, as shown in Figure 18,20, the motion profile sudden change of intermediate plate 10, positioning pin 21 is changed suddenly by the constraint of sliding slot 17 Become, and positioning pin 21 has between the glide direction of the second glissile segment 173 in the glide direction of breeze way 172, positioning pin 21 There is an angle, positioning pin 21 needs bigger external force that could enter the second glissile segment 173 from breeze way 172, therefore positioning pin 21 can be with It stagnates in breeze way 172, so that clip 1 can be located in first position.When the pulling force for applying bigger makes clip 1 proximally When movement, positioning pin 21 can be made, which to be detached from from breeze way 172 into the second glissile segment 173, makes clip 1 as shown in Figure 21,22 Positioning in first position is released from；The location of clip can when positioning pin 21 is located at any position of the second glissile segment 173 To regard the third place described in embodiment one as, when positioning pin 21 is detached from from breeze way 172 enters the second glissile segment 173, folder Son 1 enters the third place from first position, and positioning relation of the clip 1 in first position is released from.

Embodiment five

Embodiment five and the difference of embodiment one are:

In the present embodiment, the not set positioning region 13 of intermediate plate 10 is equipped with radian in the middle part of intermediate plate 10, and radian makes the distal end of intermediate plate 10 Outside lateral bend increases the maximum distance of opening of the distal end of clip in the case where not changing 10 length of intermediate plate.Intermediate plate 10 Middle part is equipped with reinforcing rib 15, and reinforcing rib 15 is used to improve the mechanical performance of intermediate plate 10.

As shown in figure 23, reinforcing rib 15 is located at the outside of intermediate plate 10, and it is biggish that reinforcing rib 15 is located at 10 bending degree of intermediate plate Position can greatly improve 10 mechanical performance of intermediate plate, protect the crooked radian of intermediate plate 10, the crooked radian of intermediate plate 10 is avoided to be squeezed Compressive strain.On the other hand, the wear resistance of intermediate plate 10 can be improved in reinforcing rib 15, when intermediate plate 10 takes in containing tube 2, intermediate plate 10 outside rubs with containing tube 2, is that reinforcing rib 15 and containing tube 2 rub first, with rubbing for reinforcing rib 15 and containing tube 2 It wipes and replaces adding friction of the intermediate plate 10 with containing tube 2 itself, to protect intermediate plate 10, reinforcing rib 15 can also select wear-resistant material It is made.

As shown in figure 24, reinforcing rib 15 is located at the inside of intermediate plate 10, and it is biggish that reinforcing rib 15 is located at 10 bending degree of intermediate plate Position can greatly improve 10 mechanical performance of intermediate plate, protect the crooked radian of intermediate plate 10, the crooked radian of intermediate plate 10 is avoided to be squeezed Compressive strain.

As shown in Figure 23,24, between the inner surface and outer surface of interior lateral direction upper clip 10 shown in paper away from It is width perpendicular to the distance between 10 both side surface of paper direction upper clip, reinforcing rib 15 and intermediate plate 10 are constituted from for thickness Whole thickness be greater than the thickness of intermediate plate 10 itself, increase the coefficient of elasticity of intermediate plate 10, can preferably maintain intermediate plate 10 Profile state, squeeze intermediate plate 10 external force revocation after, intermediate plate 10 can restore rapidly before profile state.

Reinforcing rib 15, which can be used, can also use memory from the identical material of intermediate plate 10 or different materials, reinforcing rib 15 Material.Reinforcing rib 15 can be integrally manufactured with intermediate plate 10, can also pass through welding or gluing or riveting or other modes It is connected on intermediate plate 10, the edge of intermediate plate 10 can also be made to bend to form reinforcing rib 15 by formative technologies such as metal plates.

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 (15)

1. a kind of clamping device characterized by comprising

Clip, including at least two intermediate plates, the intermediate plate are equipped with positioning region；

Containing tube, the containing tube are equipped with channel；

Mandrel；

Wherein, the mandrel is set in the channel of the containing tube, and the mandrel is docked with the proximal end of the clip, when the folder When son is located at first position, the positioning region and the containing tube cooperate, and the clip is made to be located in first position, the folder The distance that son opens is the first opening distance.

2. clamping device according to claim 1, which is characterized in that it is the positioning region that the intermediate plate, which is equipped with bending part, The outside for the direction intermediate plate for increasing the opening distance of the intermediate plate, the bending part keep the distal end of the intermediate plate outside Lateral bending folding.

3. clamping device according to claim 2, which is characterized in that the outside of the positioning region is equipped with convex, works as institute When stating clip and being located at the first position, the distal edge of the convex and the containing tube is along cooperating.

4. clamping device according to claim 2, which is characterized in that so that the clip is opened the reduced side of distance and press from both sides The inside of piece, the intermediate plate are additionally provided with reinforcing rib, and the reinforcing rib is located at the inside of the bending part.

5. clamping device according to claim 1, which is characterized in that the positioning region is equipped with reinforcing rib.

6. clamping device according to claim 5, which is characterized in that the reinforcing rib is identical as the material of the intermediate plate, The whole thickness that the reinforcing rib and the intermediate plate are constituted is greater than the thickness of the intermediate plate or the reinforcing rib and the intermediate plate The whole width of composition is greater than the width of the intermediate plate；Alternatively, the reinforcing rib is different from the material of the intermediate plate；Alternatively, The coefficient of elasticity of the reinforcing rib is greater than the coefficient of elasticity of the intermediate plate.

7. clamping device according to claim 1, which is characterized in that the intermediate plate is equipped with sliding slot, and the containing tube is equipped with Positioning pin, the positioning pin protrude into the sliding slot, and the positioning pin is slidably matched with the sliding slot, and the sliding slot has buffering Section, the breeze way constitutes the positioning region, and when the clip is located at the first position, the positioning pin is located at described slow Rush section.

8. clamping device according to claim 7, which is characterized in that the sliding slot includes the first glissile segment and the second sliding Section, the breeze way is between first glissile segment and second glissile segment, first glissile segment and described second Glissile segment is connected by the breeze way；

Wherein, the positioning pin is in the glide direction of the breeze way, the positioning pin in the sliding side of first glissile segment There is angle between, the positioning pin is in the glide direction of the breeze way, the positioning pin in second glissile segment There is angle between glide direction.

9. clamping device according to any one of claims 1 to 8, which is characterized in that it includes that intermediate plate, which is equipped with, At least two positioning regions including one positioning region and the second positioning region, second positioning region are located at first positioning region Distal end；

When the clip is located at first position, first positioning region and the containing tube cooperate, and position the clip In the first position, the distance that the clip opens is the first opening distance；

When the clip is located at the second position, second positioning region and the containing tube cooperate, and position the clip In the second position, the distance that the clip opens is the second opening distance；

Described first, which opens distance, is greater than the second opening distance.

10. clamping device according to any one of claims 1 to 8, which is characterized in that when the clip is located at the third place When, the positioning region is located in the channel of the containing tube, and the clip is that third opens distance, and the third is opened apart from small Distance is opened in described first.

11. a kind of clamping device characterized by comprising

Clip, including at least two intermediate plates, the intermediate plate are equipped with reinforcing rib；

Containing tube, the containing tube are equipped with channel；

Mandrel；

Wherein, the mandrel is set in the channel of the containing tube, and the mandrel is docked with the proximal end of the clip.

12. clamping device according to claim 11, which is characterized in that the entirety that the reinforcing rib and the intermediate plate are constituted Thickness be greater than the thickness of the intermediate plate or whole width that the reinforcing rib and the intermediate plate are constituted is greater than the intermediate plate Width.

13. clamping device according to claim 11, which is characterized in that the intermediate plate is equipped with bending part, makes the intermediate plate The direction that increases of opening distance be the intermediate plate outside, the bending part bends the distal end of the intermediate plate outward, institute Bending part is stated equipped with the reinforcing rib.

14. clamping device according to claim 11, which is characterized in that the material phase of the reinforcing rib and the intermediate plate Together.

15. clamping device according to claim 11, which is characterized in that the material of the reinforcing rib and the intermediate plate is not Together；Alternatively, the coefficient of elasticity of the reinforcing rib is greater than the coefficient of elasticity of the intermediate plate.