CN104248461B - Clamp, clamp pusher and hemostatic clamp - Google Patents

Clamp, clamp pusher and hemostatic clamp Download PDF

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Publication number
CN104248461B
CN104248461B CN201410496144.0A CN201410496144A CN104248461B CN 104248461 B CN104248461 B CN 104248461B CN 201410496144 A CN201410496144 A CN 201410496144A CN 104248461 B CN104248461 B CN 104248461B
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clamp
connecting rod
intermediate plate
projection
pipe
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CN104248461A (en
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许记分
伍文艳
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Anrei Medical HZ Co Ltd
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Anrei Medical HZ Co Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/122Clamps or clips, e.g. for the umbilical cord
    • A61B17/1227Spring clips
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B2017/12004Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Reproductive Health (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

The invention discloses clamp, clamp pusher and hemostatic clamp, this clamp includes intermediate plate, clamp pipe and connecting rod;Being provided with stop internal ring in the back segment pore of clamp pipe, stop internal ring locking plane formed behind, after intermediate plate is incorporated into clamp pipe, the anti-slop serrations of intermediate plate afterbody can form locking with locking plane snapping and coordinate, it is prevented that intermediate plate skids off forward;Clamp pipe jointly coordinates propelling movement intermediate plate to advance with connecting rod, and connecting rod front end is connected by demountable structure with intermediate plate afterbody;Connecting rod interlude is hollow structure, front and back are connected by two the first stupefied bars of inside elastic shrinkage deformation can be extruded, the outside of two the first stupefied bars is provided with the first projection, connecting rod rear has two the second stupefied bars that can be extruded the deformation of inside elastic shrinkage, and the outside of two the second stupefied bars is provided with the second projection。The technical program connect reliable, easy to assembly, easily operate。

Description

Clamp, clamp pusher and hemostatic clamp
Technical field
The invention belongs to medical instruments field, relate to the clamp in endoscopic surgery, clamp pusher and hemostatic clamp。
Background technology
Along with the development of endoscopic technic and other correlation techniques, Hemostasis through endoscopy has become as the first-selected Therapeutic Method of current digestive tract hemorrhage treatment。Endoscope hemostasis method conventional at present has laser coagulation, electrocoagulation, local injection hemostasis, herbal sprinkling method and clamp method etc.。Wherein, clamp method because of its traumatic little, anthemorrhagic speed soon, the feature such as bleeding event low, few intercurrent disease, determined curative effect again, it has also become digestive tract hemorrhage non-operative treatment is most effective, the method that has clinical value most。
In prior art, publication number is the hemostatic clamp that the patent documentations such as CN101087564, CN100569173, CN101112327 all have open clamp can separate with clamp pusher, but, prior art exists: it is unreliable that clamp is connected with clamp pusher, connects difficult and easy to fall off;The controllability of intermediate plate maximum open is poor, easy maloperation during clamping;Clamp is complicated with clamp pusher structure, installs the problems such as inconvenient。
Summary of the invention
In order to solve above-mentioned technical problem, an object of the present invention is to provide a kind of connection clamp reliable, easy to assembly, easy-operating。
The two of the purpose of the present invention be to provide a kind of and above-mentioned clamp with the use of clamp pusher。
The two of the purpose of the present invention are to provide a kind of hemostatic clamp, including above-mentioned clamp and clamp pusher。
The present invention is by the following technical solutions:
Clamp, including intermediate plate, clamp pipe and connecting rod;The two sides of tail of described intermediate plate is provided with anti-slop serrations, for holding intermediate plate, close intermediate plate and being provided with stop internal ring in the back segment pore of the clamp pipe of locking intermediate plate, stop internal ring locking plane formed behind, after intermediate plate is incorporated into clamp pipe, the anti-slop serrations of intermediate plate afterbody can form locking with locking plane snapping and coordinate, it is prevented that intermediate plate skids off forward;Described clamp pipe jointly coordinates propelling movement intermediate plate to advance with connecting rod, and connecting rod front end is connected by demountable structure with intermediate plate afterbody, and this demountable structure enables to connecting rod when applying separating force and separates release with intermediate plate;Connecting rod interlude is hollow structure, front and back are connected by two the first stupefied bars of inside elastic shrinkage deformation can be extruded, the outside of two the first stupefied bars is provided with the first projection, when the previous section of connecting rod is inserted in the back segment pore of clamp pipe, the locking plane of the first projection and clamp pipe forms the one-way locking preventing from releasing forward, connecting rod rear has two the second stupefied bars that can be extruded the deformation of inside elastic shrinkage, and the outside of two the second stupefied bars is provided with the second projection。
As preferably, two described the second stupefied bar front ends connect the interlude of connecting rod, and the rear end of two the second stupefied bars separates thus being formed elastic forked。Or preferably, two described the second stupefied bar closed at both ends。
As preferably, described intermediate plate is splayed, or in ∝ shape。
As preferably, the front end of described connecting rod is connected with the afterbody hook of intermediate plate by single crotch structure, and this crotch can be straightened or break, so that connecting rod separates release with intermediate plate。Or preferably, the front end of described connecting rod is connected with the afterbody hook of intermediate plate by two and half crotch structures, and two and half crotch structures fully can be opened under the effect of separating force, so that connecting rod separates release with intermediate plate。
As preferably, described locking plane is positioned at inside the back segment pore of clamp pipe, and the first projection of connecting rod can be contained in clamp pipe。
As preferably, described connecting rod being provided with in the outside of the first stupefied bar the protruding stop projection less than the first projection, stop that projection is positioned at before the first projection and both spacing are more than the thickness stopping internal ring on clamp pipe。
Clamp pusher, including flexible mandrel, remote spring pipe and bourdon tube, bourdon tube is set in outside flexible mandrel, the far-end of bourdon tube connects the near-end of remote spring pipe by transfer tube, near-end and the operating platform of bourdon tube and flexible mandrel connect, the far-end of described flexible mandrel is fixing connects a connecting seat, connect seat and there is the endoporus that can insert for the rear of connecting rod, connect and the interlude wall of seat has two windows connected with endoporus, connect in the endoporus of seat and be provided with the interior step face that the second projection hook with connecting rod rear coordinates;One for holding the far-end of the distal cap parcel remote spring pipe connecting seat and spacing clamp pipe。
As preferably, described connection seat includes front tube and rear connecting portion, front tube is in the endoporus being previously inserted into rear connecting portion, so, the rear end face of front tube forms interior step face, window is opened on rear connecting portion, and front tube and rear connecting portion are integrally forming again through being welded to connect, and rear connecting portion is fixing with flexible mandrel to be connected。
As preferably, the rear end face of described front tube is mounted to the window of rear connecting portion, and in connecting rod, the second projection is non-bulging in window after coordinating with the rear end face hook of front tube。
Described operating platform includes: the near-end of bourdon tube is connected with handle, and handle is installed runner and slip hands handle, and flexible mandrel is connected with slip hands fixing and can be rotated by runner driving。
A kind of hemostatic clamp, including clamp as above and clamp pusher, the rear of connecting rod inserts the endoporus connecting seat, and the second projection of connecting rod rear forms hook with the interior step face being connected seat and coordinates。
In the present invention, the interlude of connecting rod adopts two stupefied bars that can press contraction and projection cube structure, make the simpler convenience of assembling of clamp, after the front end of connecting rod is connected with intermediate plate afterbody, by connecting rod from penetrating before clamp pipe to passing below, making the rear of connecting rod and interlude can pass through clamp pipe by pressing the first projection and the second projection, the locking plane to the first projection with clamp pipe forms one-way locking, namely completes assembling。Further, adopting connecting rod rear to insert and connect seat, connect difficult drop-off, dismounting is also convenient for。There is simple and ingenious structure, connect the advantages such as operation reliable and stable, easy to assembly, easy, low cost of manufacture。
Accompanying drawing explanation
Fig. 1 is the structural representation of hemostatic clamp of the present invention;
Fig. 2 a is the structural representation of a kind of embodiment of intermediate plate of the present invention;
Fig. 2 b is the structural representation of intermediate plate another embodiment of the present invention;
Fig. 3 is the structural representation of clamp pipe of the present invention;
Fig. 4 a is the structural representation of a kind of embodiment of connecting rod of the present invention;
Fig. 4 b is the structural representation of connecting rod another embodiment of the present invention;
Fig. 5 a is the structural representation that the present invention connects seat;
Fig. 5 b is the assembling schematic diagram that the present invention connects seat;
Fig. 6 is the structural representation of distal cap of the present invention;
Fig. 7 is the structural representation of transfer tube of the present invention;
Fig. 8 is connecting rod and connects schematic diagram when seat assembles;
Fig. 9 is connecting rod and connects the schematic diagram after seat installs;
Figure 10 is connecting rod and connects schematic diagram when seat is separated;
Figure 11 be clamp pipe with connecting rod coordinate schematic diagram;
Figure 12 a is the operation chart (before separation) of a kind of embodiment of clamp of the present invention;
Figure 12 b is the operation chart (after separation) of a kind of embodiment of clamp of the present invention;
Figure 13 a is the operation chart (before separation) of clamp another embodiment of the present invention;
Figure 13 b is the operation chart (after separation) of clamp another embodiment of the present invention;
Figure 14 is the mounting structure schematic diagram of remote spring pipe。
Detailed description of the invention
Embodiment 1:
Clamp, including intermediate plate, clamp pipe and connecting rod;The two sides of tail of described intermediate plate is provided with anti-slop serrations, for holding intermediate plate, close intermediate plate and being provided with stop internal ring in the back segment pore of the clamp pipe of locking intermediate plate, stop internal ring locking plane formed behind, after intermediate plate is incorporated into clamp pipe, the anti-slop serrations of intermediate plate afterbody can form locking with locking plane snapping and coordinate, it is prevented that intermediate plate skids off forward;Described clamp pipe jointly coordinates propelling movement intermediate plate to advance with connecting rod, and connecting rod front end is connected by demountable structure with intermediate plate afterbody, and this demountable structure enables to connecting rod when applying separating force and separates release with intermediate plate;Connecting rod interlude is hollow structure, front and back are connected by two the first stupefied bars of inside elastic shrinkage deformation can be extruded, the outside of two the first stupefied bars is provided with the first projection, when the previous section of connecting rod is inserted in the back segment pore of clamp pipe, the locking plane of the first projection and clamp pipe forms the one-way locking preventing from releasing forward, connecting rod rear has two the second stupefied bars that can be extruded the deformation of inside elastic shrinkage, and the outside of two the second stupefied bars is provided with the second projection。
Clamp pusher, including flexible mandrel, remote spring pipe and bourdon tube, bourdon tube is set in outside flexible mandrel, the far-end of bourdon tube connects the near-end of remote spring pipe by transfer tube, near-end and the operating platform of bourdon tube and flexible mandrel connect, the far-end of described flexible mandrel is fixing connects a connecting seat, connect seat and there is the endoporus that can insert for the rear of connecting rod, connect and the interlude wall of seat has two windows connected with endoporus, connect in the endoporus of seat and be provided with the interior step face 215 that the second projection hook with connecting rod rear coordinates;One for holding the far-end of the distal cap parcel remote spring pipe connecting seat and spacing clamp pipe。
Described operating platform includes: the near-end of bourdon tube is connected with handle, and handle is installed runner and slip hands handle, and flexible mandrel is connected with slip hands fixing and can be rotated by runner driving。
A kind of hemostatic clamp, including clamp as above and clamp pusher, the rear of connecting rod inserts the endoporus connecting seat, and the second projection of connecting rod rear forms hook with the interior step face being connected seat and coordinates。
Being further described as follows in conjunction with accompanying drawing:
A kind of hemostatic clamp as shown in Figure 1, two products including separating: clamp 100 and clamp pusher 200。Both with the use of;Clamp 100 single use, clamp pusher 200 is reused。Clamp 100 is for the ligation of bio-tissue;Clamp pusher 200 is used for pushing clamp 100 to operating position, and operation clamp rotates, closes, release etc.。
Clamp 100 is made up of intermediate plate 110, clamp pipe 120, connecting rod 130。
Clamp pusher 200 by connecting seat 210, flexible mandrel 220, remote spring pipe 230, distal cap 240, transfer tube 250, bourdon tube 260, handle 270, runner 280, slip hands form 290 etc.。
Fig. 2 a is a kind of embodiment of intermediate plate, and in splayed, Fig. 2 b is the another embodiment of intermediate plate, in ∝ shape。Intermediate plate 110 is for grasp body tissue;When not closed, external force can be subject to produce a degree of recoverable elastic deformation, in order to via endoscope channel, be pushed to operating position;After its connected bar 130 post-tensioning takes in clamp pipe 120, it remains closed。Afterbody 112 both sides of intermediate plate 110 are provided with anti-slop serrations 111。
As it is shown on figure 3, clamp pipe 120 is used for holding intermediate plate 110, Guan Bi intermediate plate 110, locking intermediate plate 110;It jointly coordinates propelling movement intermediate plate 110 to advance with connecting rod 130 simultaneously。The front end mouth of pipe of clamp pipe 120 is inner conical surface 123, so that intermediate plate 110 is taken in, stop internal ring 122 it is provided with in the back segment pore of clamp pipe 120, stop internal ring 122 locking plane 121 formed behind, after intermediate plate 110 is incorporated into clamp pipe 120, the anti-slop serrations 111 of intermediate plate 110 afterbody can form locking with locking plane 121 snapping and coordinate, it is prevented that intermediate plate 110 skids off forward。
Connecting rod 130 for tingle 110, and for be connected seat 210 and form dismountable connection。A kind of embodiment of connecting rod as shown in fig. 4 a: the front end of connecting rod 130a has single crotch structure 136a, for the afterbody 112 of hook intermediate plate 110, makes connecting rod 130a be connected with intermediate plate 110。Crotch 136a can be straightened or break, so that connecting rod 130a separates release with intermediate plate 110。Connecting rod 130a interlude is hollow structure, connects front and back by two the first stupefied bars 133, and the first stupefied bar 133 can be extruded the deformation of inside elastic shrinkage。The outside of two the first stupefied bars 133 is provided with the first projection 134, and as shown in figure 11, when the previous section of connecting rod 130 is inserted in the back segment pore of clamp pipe 120, the locking plane 121 of the first projection 134 and clamp pipe 120 forms one-way locking, it is prevented that release forward。In addition, locking plane 121 is positioned at inside the back segment pore of clamp pipe 120, so make the first projection 134 can be contained in clamp pipe 120, be subject to external structure impact thus avoiding the first projection 134 to be exposed to outside clamp pipe 120 and cause one-way locking structural failure。Connecting rod 130a rear has two the second stupefied bar 131a, second stupefied bar 131a can be extruded the deformation of inside elastic shrinkage, two the second stupefied bar 131a front ends connect the interlude of connecting rod, the rear end of two the second stupefied bar 131a separates thus being formed elastic forked, and the outside of two the second stupefied bar 131a is provided with the second projection 132。
The front end of the another embodiment of connecting rod as shown in Figure 4 b: connecting rod 130b has two and half crotch structure 136b, for the afterbody 112 of hook intermediate plate 110, makes connecting rod 130b be connected with intermediate plate 110。Half crotch 137b is pulled to afterbody rear space and can fully open more greatly, and connecting rod 130b can be made to separate release with intermediate plate 110。In present embodiment, the structure of connecting rod 130b interlude is identical with the connecting rod 130a in above-mentioned embodiment。Connecting rod 130b rear has two second stupefied bar 131b, the second stupefied bar 131b of closed at both ends can be extruded the deformation of inside elastic shrinkage, and the outside of two the second stupefied bar 131b is provided with the second projection 132。
Structure for above-mentioned connecting rod is not limited to above two embodiment, at least can also be undertaken the leading portion in above two embodiment, interlude and rear being respectively combined the embodiment that formation is other。
In order to prevent maloperation, (connecting rod and the intermediate plate being connected with connecting rod are pulled, intermediate plate cannot be again turned in income clamp pipe by mistake), connecting rod is provided with the protruding stop projection 135 less than the first projection 134 in the outside of the first stupefied bar, stop that projection 135 is positioned at before the first projection 134 and both spacing are more than the thickness stopping internal ring 122 on clamp pipe, need the resistance stopping internal ring 122 overcome on certain clamp pipe during such connecting rod post-tensioning, be thus easy to operator and find in time to stop maloperation。
Connecting seat 210 for forming dismountable connection with connecting rod 130, connection seat 210 is fixing with flexible mandrel 220 to be connected, and is driven post-tensioning and advance by flexible mandrel 220。As shown in Fig. 5 a, Fig. 5 b, connect seat 210 and there is the endoporus 214 that can insert for the rear of connecting rod 130, connect and the interlude wall of seat 210 has two windows 216 connected with endoporus 214, connect in the endoporus 214 of seat 210 and be provided with interior step face 215, as shown in Figure 8, Figure 9, when the rear of connecting rod 130 inserts and connects seat 210, second projection 132 of connecting rod 130a/130b rear forms hook and coordinates with the interior step face 215 (this example is anchor ring) being connected seat 210, transmits back pull。As shown in Figure 10, during dismounting, finger can pass through window 216, presses inward against the second projection 132 on connecting rod 130a/130b so that the second stupefied bar 131a/131b is pressed contraction, in order to from connecting dismounting connecting rod 130a/130b seat 210。
Connect seat 210, removable it is divided into front tube 211 and 212 two parts of rear connecting portion, front tube 211 is in the endoporus being previously inserted into rear connecting portion 212, so, the rear end face of front tube 211 forms interior step face 215, and window 216 is opened on rear connecting portion 212, and two parts are integrally forming again through being welded to connect, to process, rear connecting portion 212 is fixing with flexible mandrel to be connected。The second projection in order to be further ensured that in connecting rod coordinates reliable and stable with the hook in the interior step face being connected seat, the rear end face of front tube 211 is mounted to the window 216 of rear connecting portion 212, and in connecting rod, the second projection is non-bulging in window 216 after hook coordinates。The second stupefied bar for the ease of squeeze flow bar rear elastically deforms inward and shrinks, tail end in connecting rod 130 is provided with chamfering inclined-plane, and/or it is formed with chamfer site 213 in the endoporus front end connecting seat 210, so facilitate the endoporus 214 that connecting rod passes through to connect seat 210 to insert and connect seat 210。
In prior art, intermediate plate is hooked on projection, and need to break projection root could discharge, and release power is excessive, and requires that bigger Free up Memory is to hold the fracture of projection。The present invention adopts single crotch structure or two and half crotch structures to be connected with intermediate plate afterbody, only need to stretch flat hook or pull half crotch, and after intermediate plate is tightened to clamp pipe completely, hook just can have enough Free up Memories, and release power is appropriate。
In the present invention, the interlude of connecting rod adopts two stupefied bars that can press contraction and projection cube structure, make the simpler convenience of assembling of clamp, after the front end of connecting rod is connected with intermediate plate afterbody, by connecting rod from penetrating before clamp pipe to passing below, making the rear of connecting rod and interlude can pass through clamp pipe by pressing the first projection 134 and the second projection 132, the locking plane 121 to the first projection 134 with clamp pipe 120 forms one-way locking, namely completes assembling。For the ease of assembling, the rear end face of the first projection 134 with the second projection 132 can be arranged to chamfer or similar transition structure, need not press during such grafting assembling and the first stupefied bar and the second stupefied bar can be made to produce to shrink so that connecting rod can pass clamp pipe。In the present invention, adopting connecting rod rear to insert and connect seat, connect difficult drop-off, dismounting is also convenient for。
Flexible mandrel 220, for being connected 290 with slip hands, transmits push-pull effort;And rotation can be driven by runner 280。
Remote spring pipe 230 is used for holding connection seat 210 and clamp pipe 120 afterbody。
Distal cap 240 is used for wrapping up remote spring pipe 230 far-end, it is prevented that bourdon tube scratch endoscopic forceps channel;Distal cap 240 has internal chamfering 241, it is simple to clamp pipe 120 afterbody is received into。
Transfer tube 250 is used for connecting remote spring pipe 230 and bourdon tube 260。
Bourdon tube 260 is used for being coated at flexible mandrel 220, and indirect Push clamp 110 is to operating position。
As shown in figure 14, remote spring pipe 230, bourdon tube 260 are connected with transfer tube 250 respectively, and connected mode can be welding, riveting connection etc.。It is simply firm to connect。It is enclosed within remote spring pipe 230 near-end, bourdon tube 260 far-end as it is shown in fig. 7, the far and near two ends of transfer tube 250 have outside thin-walled ring 251,252 respectively。Being cased with distal cap 240 outside the far-end of remote spring pipe 230, connected mode can be welding, riveting connection etc.。The smooth impulse-free robustness of far-end end face exposes。As shown in Figure 6, distal cap 240 is internal has chamfering 241, it is simple to connect seat 210, connecting rod 130 enters inside it。Distal cap 240 near-end has thin-walled ring 242, is enclosed within outward on remote spring pipe 230 far-end。
Handle 270 is used for installing bourdon tube 260, runner 280, slip hands 290, as the operating platform of clamp 110。
Runner 280 is used for driving flexible mandrel 220 to rotate。
Slip hands is used for push-and-pull flexibility mandrel 220 290。
When intermediate plate 110 is opened, as shown in Figure 12 a, Figure 12 b, clamp pipe is limited motionless by distal cap, by flexible mandrel, connect seat, connecting rod 132 can pull back intermediate plate 110 and take in clamp pipe 120 and (can experience the resistance stopping internal ring 122 to stopping projection 135 in drawing process, after overcoming this resistance, intermediate plate can be pulled completely into clamp pipe);As shown in Figure 13 a, Figure 13 b, when pulling back connecting tube further, intermediate plate closes, intermediate plate 110 is pulled and is tightened in clamp pipe, the anti-slop serrations 111 of intermediate plate 110 be hooked in the locking plane 121 of the Internal back end of clamp pipe 120 realize locking, it is prevented that intermediate plate 110 opposed jaws pipe 120 sliding forward and shake off。

Claims (10)

1. clamp, it is characterised in that include intermediate plate (110), clamp pipe (120) and connecting rod (130);Afterbody (112) both sides of described intermediate plate (110) are provided with anti-slop serrations (111), for holding intermediate plate (110), stop internal ring (122) it is provided with in the back segment pore of the clamp pipe (120) of Guan Bi intermediate plate (110) and locking intermediate plate (110), stop internal ring (122) locking plane (121) formed behind, after intermediate plate (110) is incorporated into clamp pipe (120), the anti-slop serrations (111) of intermediate plate (110) afterbody can form locking with locking plane (121) snapping and coordinate, prevent intermediate plate (110) from skidding off forward;Described clamp pipe (120) jointly coordinates propelling movement intermediate plate (110) to advance with connecting rod (130), connecting rod (130) front end is connected by demountable structure with intermediate plate (110) afterbody, and this demountable structure enables to connecting rod (130) when applying separating force and intermediate plate (110) separates release;Connecting rod (130) interlude is hollow structure, front and back are connected by two the first stupefied bars (133) of inside elastic shrinkage deformation can be extruded, the outside of two the first stupefied bars (133) is provided with the first projection (134), when the previous section of connecting rod (130) is inserted in the back segment pore of clamp pipe (120), the locking plane (121) of the first projection (134) and clamp pipe (120) forms the one-way locking preventing from releasing forward, connecting rod (130) rear has two the second stupefied bars (131) that can be extruded the deformation of inside elastic shrinkage, the outside of two the second stupefied bars (131) is provided with the second projection (132)。
2. clamp according to claim 1, it is characterised in that two described the second stupefied bar (131) front ends connect the interlude of connecting rod, and the rear end of two the second stupefied bars (131) separates thus being formed elastic forked。
3. clamp according to claim 1, it is characterised in that two described the second stupefied bar (131) closed at both ends。
4. clamp according to claim 1, it is characterised in that described intermediate plate (110) is in splayed, or is ∝ shape。
5. clamp according to claim 1, it is characterized in that, the front end of described connecting rod (130) is connected with afterbody (112) hook of intermediate plate (110) by single crotch structure, this crotch can be straightened or break, so that connecting rod (130) separates release with intermediate plate (110)。
6. clamp according to claim 1, it is characterized in that, the front end of described connecting rod (130) is connected with afterbody (112) hook of intermediate plate (110) by two and half crotch structures (136), two and half crotch structures (136) fully can be opened under the effect of separating force, so that connecting rod (130) separates release with intermediate plate (110)。
7. clamp according to claim 1, it is characterized in that, described connecting rod is provided with in the outside of the first stupefied bar the protruding stop projection (135) less than the first projection (134), stops that projection (135) is positioned at before the first projection (134) and both spacing are more than the thickness of the stop internal ring (122) on clamp pipe。
8. clamp pusher, including flexible mandrel (220), remote spring pipe (230) and bourdon tube (260), bourdon tube (260) is set in flexible mandrel (220) outside, the far-end of bourdon tube (260) connects the near-end of remote spring pipe (230) by transfer tube (250), near-end and the operating platform of bourdon tube (260) and flexible mandrel (220) connect, it is characterized in that, the far-end of described flexible mandrel (220) is fixing connects a connecting seat (210), connect seat (210) and there is the endoporus (214) that the rear of connecting rod (130) can be supplied to insert, this connecting rod (130) rear has two the second stupefied bars (131) that can be extruded the deformation of inside elastic shrinkage, the outside of two the second stupefied bars (131) is provided with the second projection (132), connect and the interlude wall of seat (210) has two windows (216) connected with endoporus (214), connect in the endoporus (214) of seat (210) and be provided with the interior step face (215) that the second projection (132) hook with connecting rod (130) rear coordinates;One is used for holding the far-end of the distal cap (240) parcel remote spring pipe (230) connecting seat (210) and spacing clamp pipe (120)。
9. clamp pusher according to claim 8, it is characterized in that, described connection seat (210) includes front tube (211) and rear connecting portion (212), front tube (211) is in the endoporus being previously inserted into rear connecting portion (212), so, the rear end face of front tube (211) forms interior step face (215), window (216) is opened on rear connecting portion (212), front tube (211) and rear connecting portion (212) are integrally forming again through being welded to connect, rear connecting portion (212) is fixing with flexible mandrel to be connected。
10. a hemostatic clamp, it is characterized in that, including the clamp according to any one of such as claim 1 to 7 and clamp pusher as claimed in claim 8 or 9, the rear of connecting rod (130) inserts the endoporus (214) connecting seat (210), and second projection (132) of connecting rod (130) rear forms hook with the interior step face (215) being connected seat (210) and coordinates。
CN201410496144.0A 2014-09-25 2014-09-25 Clamp, clamp pusher and hemostatic clamp Active CN104248461B (en)

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CN104248461A CN104248461A (en) 2014-12-31
CN104248461B true CN104248461B (en) 2016-06-22

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