CN209499838U

CN209499838U - It is a kind of to take object to clamp for the intravascular of blood vessel intervention operation

Info

Publication number: CN209499838U
Application number: CN201821511756.2U
Authority: CN
Inventors: 乔积民
Original assignee: Nanjing First Hospital
Current assignee: Nanjing First Hospital
Priority date: 2018-09-17
Filing date: 2018-09-17
Publication date: 2019-10-18
Anticipated expiration: 2028-09-17

Abstract

The utility model relates to field of mechanical technique, it is in particular a kind of to take object to clamp for the intravascular of blood vessel intervention operation, including conduit, one end of conduit is connected with control-rod, first handle and second handle are disposed on control-rod, conduit is provided with adjustable bight portion far from one end of control-rod, adjustable bending is provided with serrated pliers partially away from one end of conduit, the middle part surface of conduit offers the first thread eye, the surface of adjustable bight portion offers the second thread eye, adjustable bight portion is internally provided with telescopic rod, the inner wall of adjustable bight portion is provided with sliding rail, the surface of sliding rail is provided with several fixing glues, the utility model structure is simple, it is easy to use, pass through fixing glue and sliding rail, the stretching, extension of serrated pliers and the size of bore can be adjusted, it is convenient, efficiently clamp the seal wire in the intravascular and chambers of the heart, it is de- to carry bracket and spring ring etc. Instruments and articles.

Description

It is a kind of to take object to clamp for the intravascular of blood vessel intervention operation

Technical field

The utility model relates to field of mechanical technique, specially a kind of to take object to clamp for the intravascular of blood vessel intervention operation.

Background technique

Often there are following problems during Percutaneous Coronary Intervention at present, disadvantage is a lot of during solution: 1. Seal wire fracture: if PTCA seal wire in coronary artery, is tightly fitted in blood after common coronary artery bracket release by the fracture of a. PTCA seal wire On pipe inner membrance, disadvantage: increasing the surgery cost of patient, increases the risk of thrombus in stents and blood vessel blockage；B. if PTCA is led In aorta or subclavian artery or oar, arteria brachialis, needing will with first heart mesh basket seal wire or En snare catching device for silk fracture Seal wire is grabbed mend after take out, disadvantage: increasing the surgery cost of patient, and the difficulty for arresting PTCA seal wire is larger, if unsuccessfully needed outer Section's operation is taken out；

Carry 2. bracket is de-: bracket once de- carry needs that bracket is grabbed benefit with first heart mesh basket seal wire or En snare catching device It is taken out after firmly, disadvantage: increasing the surgery cost of patient, taken off and carry bracket thrombus easy to form, the difficulty for arresting bracket is larger, if Unsuccessfully surgical operation is needed to take out；

3. the de- load of embolism spring ring or the undesirable taking-up in position: needing with first heart mesh basket seal wire or En snare catching device Bolt match spring ring is grabbed and is taken out after mending, disadvantage: increasing the surgery cost of patient, arrests that difficulty is larger, and embolism spring ring is quickly Thrombus easy to form；

4. conduit discounting can not removed: need to separately puncture blood vessel all the way, need with first heart mesh basket seal wire or En snare catching device Conduit is grabbed from conduit head end and mends rear post-tensioning cooperation catheter tip rotation for conduit discounting releasing, disadvantage: increases patient's Pain and surgery cost, and thrombus easy to form, the difficulty for arresting conduit is larger, and the support force that can be provided after arresting is limited, If unsuccessfully surgical operation is needed to take out.

In consideration of it, it is proposed that a kind of take object to clamp for the intravascular of blood vessel intervention operation.

Utility model content

Object is taken to clamp for the intravascular of blood vessel intervention operation the purpose of this utility model is to provide a kind of, it is above-mentioned to solve The seal wire proposed in background technique, which is broken, or slippage, bracket take off load, embolism spring ring takes off load or position is undesirable needs taking-up, conduit Give a discount can not remove and the chambers of the heart in 3 D stereo situation downcomer and seal wire be not easy the problems such as arresting.

To achieve the above object, the utility model provides the following technical solutions:

It is a kind of to take object to clamp for the intravascular of blood vessel intervention operation, including conduit, one end of the conduit be connected with control Bar is disposed with first handle and second handle on the control-rod, and the one end of the second handle far from control-rod is close It is bonded with handle, the conduit is provided with adjustable bight portion far from one end of control-rod, and the adjustable bending is partially away from conduit One end is provided with serrated pliers, and the middle part surface of the conduit offers the first thread eye, and the surface of the adjustable bight portion opens up There is the second thread eye；

The surface of the serrated pliers is provided with tooth engaged, and the adjustable bight portion is internally provided with telescopic rod, it is described can The inner wall of bight portion is adjusted to be provided with sliding rail, the surface of the sliding rail is provided with several fixing glues, and the sliding rail and telescopic rod slide Connection, the telescopic rod offer the sliding slot being slidably connected with fixing glue at fixing glue；

The first handle includes shell, and the shell is internally provided with inner disc, and the inner surface of the shell is provided with Several first sawtooth, the outer surface of the inner disc are provided with several second sawtooth, the outer wall of the inside of the shell and inner disc it Between up and down two sides be provided with gear, the middle part surface of the inner disc offers threaded hole；

The control-rod is internally provided with rotating bar, and the rotating bar is slidably connected with control-rod, and the rotating bar is logical The first screw thread to be crossed to be threadedly coupled with first handle, the structure of the second handle is identical as first handle, and the one of the control-rod End is threadedly coupled by the second screw thread with second handle.

Preferably, the two sides of the gear respectively with the first sawtooth and the second engagement.

Preferably, the inside of the control-rod is hollow structure.

Preferably, the conduit is hollow tubular structure.

Preferably, one end of the rotating bar penetrates the inside of conduit.

Preferably, the adjustable bight portion is provided with guide rod close to one end of conduit.

Preferably, the telescopic rod has closely bonded torque spring, the torque spring close to one end upper surface of guide rod The other end closely bonded with guide rod, the telescopic rod is rotatablely connected close to one end lower surface of guide rod by hinge and guide rod.

Compared with prior art, easy to use the utility model has the beneficial effects that the utility model structure is simple, pass through Fixing glue and sliding rail, can adjust the stretching, extension of serrated pliers and the size of bore, easily and efficiently clamp the intravascular and chambers of the heart Interior seal wire de- carries the instruments and articles such as bracket and spring ring；First handle can control the flexible of serrated pliers, and second handle can So that serrated pliers change angle, convenient for the crawl of serrated pliers；First thread eye and the second thread eye can penetrate PTCA seal wire, make It is intravascular to take object pincers along PTCA seal wire smoothly into and out of entering blood vessel to target position, and reduce and intravascular take object pincers to vascular wall Damage.The utility model has very big use value, convenient for promoting.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is one of the structural schematic diagram of adjustable bight portion in the utility model；

Fig. 3 is the internal structure chart of first handle in the utility model；

Fig. 4 is the structural schematic diagram of control-rod, first handle and second handle in the utility model；

Fig. 5 is the combination diagram of control-rod, first handle and second handle in the utility model；

Fig. 6 is the second structural representation of adjustable bight portion in the utility model.

In figure: 1, conduit；11, the first thread eye；12, rotating bar；121, the first screw thread；2, control-rod；21, the second spiral shell Line；3, first handle；31, shell；311, the first sawtooth；32, inner disc；321, the second sawtooth；322, internal thread hole；33, tooth Wheel；4, second handle；5, handle；6, adjustable bight portion；61, serrated pliers；611, tooth engaged；62, the second thread eye；63, it stretches Bar；631, sliding rail；632, fixing glue；64, guide rod；641, torque spring.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for Convenient for description the utility model and simplify description, rather than the equipment of indication or suggestion meaning or element must have specifically Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features." several " are meant that two or two in the description of the present invention, More than, unless otherwise specifically defined.

Embodiment 1

A kind of to take object to clamp for the intravascular of blood vessel intervention operation, as shown in Figure 1, including conduit 1, conduit 1 is hollow tube Shape structure, one end of conduit 1 are connected with control-rod 2, and the inside of control-rod 2 is hollow structure, and the is disposed on control-rod 2 One handle 3 and second handle 4, second handle 4 have closely bonded handle 5 far from one end of control-rod 2, and conduit 1 is far from control-rod 2 one end is provided with adjustable bight portion 6, and adjustable bight portion 6 is provided with serrated pliers 61, the middle part of conduit 1 far from one end of conduit 1 Surface offers the first thread eye 11, and the surface of adjustable bight portion 6 offers the second thread eye 62.

In the present embodiment, the surface of conduit 1 and serrated pliers 61 is surrounded by polyurethane resin coating, surface coating hydrophilic polymer Object, polyurethane resin coating is with film-forming temperature is low, adhesive force is strong, wearability is good, hardness is big and chemicals-resistant, good weatherability Etc. superior functions, conduit 1 and serrated pliers 61 can be effectively prevent to damage vascular wall when passing in and out blood vessel.

As shown in Fig. 2, the surface of serrated pliers 61 is provided with tooth engaged 611, adjustable bight portion 6 is internally provided with telescopic rod 63, the inner wall of adjustable bight portion 6 is provided with sliding rail 631, and the surface of sliding rail 631 is provided with several fixing glues 632, sliding rail 631 with Telescopic rod 63 is slidably connected, and telescopic rod 63 offers the sliding slot being slidably connected with fixing glue 632 at fixing glue 632.

As shown in figure 3, first handle 3 includes shell 31, shell 31 is internally provided with inner disc 32, the inner surface of shell 31 Several first sawtooth 311 are provided with, the outer surface of inner disc 32 is provided with several second sawtooth 321, the inside of shell 31 and inner disc Two sides are provided with gear 33 up and down between 32 outer wall, and the two sides of gear 33 are nibbled with the first sawtooth 311 and the second sawtooth 321 respectively It closes, the middle part surface of inner disc 32 offers threaded hole 322.

As shown in Figure 4 and Figure 5, control-rod 2 is internally provided with rotating bar 12, and one end of rotating bar 12 penetrates conduit 1 Internal and be connected with telescopic rod 63, rotating bar 12 is slidably connected with control-rod 2, and rotating bar 12 passes through the first screw thread 121 and the One handle 3 is threadedly coupled, and the structure of second handle 4 is identical with first handle 3, one end of control-rod 2 by the second screw thread 21 and Second handle 4 is threadedly coupled.

In addition, rotating bar 12 is made of elastomeric material, there can be good bending property.

In the present embodiment, when rotating by rotation first handle 3, it is able to drive the rotation of gear 33, so that in inside Disk 32 rotates, and the internal thread hole rotation on inner disc 32 enables to rotating bar 12 to move forward, can control by screw thread Rotating bar 12 processed is flexible in the inside of conduit 1, to serrated pliers 61 be ejected to the external of conduit 1, so that serrated pliers 61 carry out Clipping operation；Control-rod 2 can be rotated by rotating second handle 4, so that serrated pliers 61 rotate, so that sawtooth Pincers 61 change angle orientation, and seal wire is penetrated from the first thread eye 11, is pierced by, allows the operator to from the second thread eye 62 Facilitate the disengaging for carrying out serrated pliers 61, while can be avoided 1 bending of conduit and damaging.

Embodiment 2

When specifically used, the rotational angle of serrated pliers 61 is smaller, and activity is inflexible, it has not been convenient to it uses, therefore, I Improvement is made to adjustable bight portion 6 on the basis of embodiment 1, as shown in fig. 6, adjustable bight portion 6 is close to one end of conduit 1 It is provided with guide rod 64, telescopic rod 63 has closely bonded torque spring 641, torque spring 641 close to one end upper surface of guide rod 64 The other end closely bonded with guide rod 64, telescopic rod 63 close to one end lower surface of guide rod 64 by hinge and guide rod 64 rotation connect It connects.

In the present embodiment, by the way that the connection between guide rod 64 and telescopic rod 63 is arranged, serrated pliers 61 is enabled to stretch Overturn when out by hinge, and can by torque spring 641 control overturning range, can activity freely, into The large range of clamping of row, flexibly uses convenient for operator.

Working principle of the utility model is: when using the device, can control serrated pliers 61 by rotating first handle 3 The length of conducting pipes 1, every to rotate first handle 3, gear 33 follows rotation, when rotating first handle 3, serrated pliers 61 It is slowly stretched out of conduit 1 along fixing glue 632 and sliding rail 631, jaw gradually magnifies, and opposite direction rotates first handle 3, pincers Mouth slowly closes up, and serrated pliers 61 are outer along fixing glue 632 and the slow pinch in of sliding rail 631 from conduit 1, and 61 maximum of serrated pliers is stretched Length degree is 1cm.

Crossing rotation second handle 4 can control the angle of the adjustable bight portion in 1 front end of conduit 6 with conduit 1, every to rotate the Two handles 4, gear 33 follow rotation, so that the angulation change of serrated pliers 61 leads to after adjustable bight portion 6 is angled The change of over-angle enables to the bite force of jaw stronger, and the article arrested is not easily to fall off, may be equally applicable for the first heart and is situated between Enter arresting for the hydrophilic seal wire of operation, facilitates the foundation of artery and vein track.

PTCA seal wire can along the two holes into and out of, can by be used for blood vessel intervention operation it is intravascular take object pincers along PCTA seal wire is implanted into operating position needed for guiding catheter (or angiography catheter) is sent into afterwards, passes through rotation first handle 3 and second-hand Handle 4 adjusts 61 extension elongation of serrated pliers and jaw size, angle, and recycling serrated pliers 61 retract after the article taken required for clamping To conduit 1, joint takes object pincers to withdraw together from guiding catheter (or angiography catheter) is inner for the intravascular of blood vessel intervention operation.

Wherein for blood vessel intervention operation it is intravascular take object pincers conduit length be 1.3m, outer diameter 2.0mm, wherein Conduit head end 10cm outer diameter is 1.5mm；It is completely new for blood vessel intervention operation it is intravascular take object pincers to be not used before, serrated pliers 61 It is separated with conduit 1 farthest, jaw opening is maximum, and the angle of adjustable bight portion 6 and conduit 1 is 45 °, is revolved counterclockwise using preceding elder generation Turn first handle 3 and second handle 4, serrated pliers 61 are reduced in conduit 1, and angle is adjusted to 0 °.

Basic principles, main features, and advantages of the present invention has been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Be only the utility model preference, be not intended to limit the utility model, do not departing from the spirit and scope of the utility model Under the premise of, the utility model also has various changes and improvements, these changes and improvements both fall within claimed it is practical In novel range.The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. a kind of take object to clamp for the intravascular of blood vessel intervention operation, including conduit (1), it is characterised in that: the conduit (1) One end is connected with control-rod (2), is disposed with first handle (3) and second handle (4) on the control-rod (2), and described Two handles (4) have closely bonded handle (5) far from the one end of control-rod (2), the one end of the conduit (1) far from control-rod (2) It is provided with adjustable bight portion (6), the adjustable bight portion (6) is provided with serrated pliers (61) far from the one end of conduit (1), described to lead The middle part surface of pipe (1) offers the first thread eye (11), and the surface of the adjustable bight portion (6) offers the second thread eye (62)。

2. according to claim 1 take object to clamp for the intravascular of blood vessel intervention operation, it is characterised in that: the serrated pliers (61) surface is provided with tooth engaged (611), being internally provided with telescopic rod (63) for the adjustable bight portion (6), described adjustable The inner wall of bight portion (6) is provided with sliding rail (631), and the surface of the sliding rail (631) is provided with several fixing glues (632), described Sliding rail (631) is slidably connected with telescopic rod (63), and the telescopic rod (63) offers at fixing glue (632) and fixing glue (632) sliding slot being slidably connected.

3. according to claim 1 take object to clamp for the intravascular of blood vessel intervention operation, it is characterised in that: described first-hand Handle (3) includes shell (31), and the shell (31) is internally provided with inner disc (32), and the inner surface of the shell (31) is provided with Several first sawtooth (311), the outer surface of the inner disc (32) are provided with several second sawtooth (321), the shell (31) Two sides are provided with gear (33) up and down between the internal and outer wall of inner disc (32), and the middle part surface of the inner disc (32) offers spiral shell Pit (322).

4. according to claim 1 take object to clamp for the intravascular of blood vessel intervention operation, it is characterised in that: the control-rod (2) be internally provided with rotating bar (12), the rotating bar (12) is slidably connected with control-rod (2), and the rotating bar (12) is logical The first screw thread (121) to be crossed to be threadedly coupled with first handle (3), the structure of the second handle (4) is identical as first handle (3), One end of the control-rod (2) is threadedly coupled by the second screw thread (21) with second handle (4).

5. according to claim 1 take object to clamp for the intravascular of blood vessel intervention operation, it is characterised in that: gear (33) It is engaged respectively with the first sawtooth (311) and the second sawtooth (321) two sides.

6. according to claim 1 take object to clamp for the intravascular of blood vessel intervention operation, it is characterised in that: control-rod (2) Inside be hollow structure.

7. according to claim 1 take object to clamp for the intravascular of blood vessel intervention operation, it is characterised in that: the conduit It (1) is hollow tubular structure.

8. according to claim 1 take object to clamp for the intravascular of blood vessel intervention operation, it is characterised in that: the rotating bar (12) one end penetrates the inside of conduit (1).

9. according to claim 1 take object to clamp for the intravascular of blood vessel intervention operation, it is characterised in that: the adjustable bending Partially (6) are provided with guide rod (64) close to the one end of conduit (1).

10. according to claim 2 take object to clamp for the intravascular of blood vessel intervention operation, it is characterised in that: described flexible Bar (63) has closely bonded torque spring (641) close to one end upper surface of guide rod (64), the torque spring (641) it is another End is closely bonded with guide rod (64), and the telescopic rod (63) passes through hinge and guide rod (64) close to one end lower surface of guide rod (64) Rotation connection.