CN108992125B

CN108992125B - Vascular clamp and clamping method thereof

Info

Publication number: CN108992125B
Application number: CN201811059715.9A
Authority: CN
Inventors: 李坚
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-12
Filing date: 2018-09-12
Publication date: 2023-04-25
Anticipated expiration: 2038-09-12
Also published as: CN108992125A

Abstract

The invention provides a vascular clamp which comprises a base, clamping arms and a clamping mechanism, wherein a lock hole, a pull rod channel and a fan-shaped groove are arranged in the base, the clamping mechanism is arranged in the base, and the clamping mechanism comprises a pull rod, a clamping head and a clamping hook. The vascular clamp provided by the invention solves the problem of inconvenient operation when closing a blood vessel in the prior art, has ingenious structural design and small volume, does not hurt tissues around the blood vessel, is very simple in operation of closing the blood vessel and loosening the blood vessel, is convenient for an operator to use, has good tensile property, does not damage the blood vessel, is not easy to damage in the use process, has high safety performance, is beneficial to locking the blood vessel and preventing the clamping arm from sliding, and increases the stability of the vascular clamp.

Description

Vascular clamp and clamping method thereof

Technical Field

The invention belongs to the technical field of medical appliances, and particularly relates to a vascular clamp and a clamping method thereof.

Background

In the course of surgery, when it is found that a lesion needs to be surgically excised, in order to ensure stable performance of the surgical procedure, it is necessary to temporarily close the corresponding blood vessel, and related researchers have developed vascular clamps for closing the blood vessel.

Such as: CN105054989B discloses a disposable vascular clamp, comprising a first clamping arm and a second clamping arm, wherein the inner end of the first clamping arm is elastically connected with the inner end of the second clamping arm, the outer end of the first clamping arm is provided with a clamping hook, the outer end of the second clamping arm is provided with a clamping seat matched with the clamping hook, the vascular clamp has good stability after clamping a blood vessel, and is not easy to damage in the use process, however, the space occupied by the two clamping arms is larger. CN201519174U discloses a vascular clamp for clamping human vascular clamps, including the clamp body, latch, pothook, cassette, vascular clamp and pothook seat, each part moulds plastics into an organic whole, and this vascular clamp is nevertheless convenient for doctor's operation, however, on the one hand because the arc hole outside receives very big bending stress, the junction is damaged easily, the fracture to lead to vascular clamp to drop, on the other hand because arc hole both sides position is very thin, the quality of arc hole department is difficult to stable control in the production process, produces the defective products easily.

Because of the deficiencies and inconvenience of use of the above products, in actual surgery, the tools and methods used by the surgeon to close the blood vessel are as follows: (1) The hemostatic forceps are used for temporarily clamping the blood vessel, so that the blood is prevented from flowing out; (2) ligating the blood vessel by suture knot technique; (3) The blood vessel is locked by combining the catheter knot with the hemostatic forceps.

For the first method, when the blood vessel is clamped by the hemostatic forceps, the operation is feasible for short time, but for long time operation, the hemostatic forceps are obviously unsuitable to be held by a special person for a long time, the hemostatic forceps are convenient to operate, and accidents are easy to occur in the using process; for the second method, if the thread is loosened or removed during the operation, internal bleeding is caused, and the wound healing is slower; in the third method, the knot tied by the catheter is not enough in tightness and easy to loosen, so that the tied knot needs to be further clamped by the hemostatic forceps, but the hemostatic forceps occupy large space, so that the convenience of operation is affected, and accidents are easy to occur in the using process.

In summary, it is necessary to design a vascular clip that is small in size and easy to use and disassemble to solve the problems associated with closing the blood vessel during surgery.

Disclosure of Invention

In order to solve the problem of inconvenient operation when closing a blood vessel in the operation process in the prior art, one of the purposes of the invention is to provide a vascular clamp.

Another object of the present invention is to provide a clamping method of the above vascular clamp.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

a vascular clip comprising:

a base in which is arranged

The lock hole is cylindrical and penetrates through the upper surface and the lower surface of the base;

the pull rod groove is parallel to the lock hole, an opening of the pull rod groove is arranged on the lower surface of the base, and the bottom of the pull rod groove is arranged in the base; and

the push rod movable cavity is arranged between the lock hole and the pull rod groove, a chuck opening which is used for communicating the push rod movable cavity with the lock hole is formed in one side, adjacent to the lock hole, of the push rod movable cavity, and a limit groove and a positioning hole which are used for communicating the push rod movable cavity with the pull rod groove are formed in one side, adjacent to the pull rod groove, of the push rod movable cavity;

clamping mechanism, said clamping mechanism comprising

The pull rod is positioned in the pull rod groove, the bottom of the pull rod is connected with the bottom of the pull rod groove through a spring, and a hook is arranged at the top of the pull rod;

the push rod is positioned in the push rod movable cavity, one end of the push rod is movably connected with the pull rod, the other end of the push rod is connected with a chuck, and the chuck is matched with the chuck opening; and

the positioning teeth are fixedly arranged on the pull rod, face the push rod movable cavity, are matched with the positioning holes, and are positioned in the moving stroke of the positioning teeth;

the clamping arm is positioned outside the base, and one end of the clamping arm is connected with the upper surface of the base.

Preferably, the shape of the base is an ellipsoid or a cylinder.

Preferably, the chuck includes a first hemispherical protrusion and a second hemispherical protrusion, and a gap for clamping the chuck arm is formed between the first hemispherical protrusion and the second hemispherical protrusion.

Preferably, the clamping arm is a circular silicone tube.

Preferably, the tail end of the clamping arm is conical.

The tapered tail end is convenient for the clamping arm to penetrate into and out of the lock hole.

Preferably, one end of the lock hole, which is positioned on the upper surface of the base, is provided with a bell mouth which is convenient for the clamp arm to penetrate.

The horn mouth is convenient for the clamping arm to penetrate.

The clamping method of the vascular clamp comprises the following steps: when the blood vessel needs to be closed, the base is placed below the blood vessel needing to be closed, the clamp arm bypasses the blood vessel, penetrates from the upper surface of the base at the position of the lock hole, after penetrating, the clamp arm and the upper surface of the base form a binding ring around the blood vessel, the size of the binding ring changes along with the movement of the clamp arm, the blood vessel is closed or released, the clamp arm penetrates through the lock hole, penetrates out of the lower surface of the base from the lock hole and penetrates through the hook, after the clamp arm is further tensioned by a user in the direction of the clamp arm, the hook moves in the direction of the user under the drive of the clamp arm, the pull rod simultaneously moves in the direction of the user, meanwhile, the push rod tends to be horizontal from an inclined state under the drive of the pull rod, the clamp head is squeezed into the lock hole and clamps the clamp arm in the lock hole, and the positioning teeth on the pull rod enter the positioning hole, and the blood vessel is locked.

The beneficial effects of the invention are that

1. The vascular clamp solves the problem of inconvenient operation when closing the blood vessel in the prior art, has ingenious structural design and small volume, does not hurt tissues around the blood vessel, has simple operation of closing the blood vessel and loosening the blood vessel, and is convenient for an operator to use;

2. the clamp arm is a circular silicone tube, has good tensile property, does not damage blood vessels, is not easy to damage in the use process, and has high safety performance;

3. set up the location tooth on the pull rod of vascular clamp, do benefit to the fixation after locking the blood vessel, increased vascular clamp stability of using, when needs loosen the blood vessel, only need to stimulate the arm lock again to the art person direction, make the location tooth shift out the back from the locating hole, the pull rod resets under the pulling force of spring, the push rod resumes to incline the state by the horizontality under the drive of pull rod simultaneously, chuck roll-off from the opening of lockhole this moment, the tie that arm lock and base upper surface formed becomes big, the blood vessel is loosened.

Drawings

Fig. 1 is a schematic cross-sectional structure of a vascular clamp of example 1.

Fig. 2 is a schematic cross-sectional structure of the vascular clamp of example 2.

Fig. 3 is a schematic cross-sectional view of the clip arm when clamped.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than those described herein, and similar modifications may be made by those skilled in the art without departing from the spirit of the invention, so that the invention is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The term "upper surface of the base" as used herein refers to the surface of the base that contacts the blood vessel when the blood vessel is closed; the lower surface of the base, as referred to herein, refers to the surface of the base that faces the operator.

Example 1

A vascular clip, as shown in fig. 1, comprising:

a base 10, wherein the base 10 is internally provided with

A lock hole 110, wherein the lock hole 110 is cylindrical, and the lock hole 110 is connected with the upper and lower surfaces of the base 10 in a penetrating manner;

a pull rod groove 130, wherein the pull rod groove 130 is parallel to the lock hole 110, an opening of the pull rod groove 130 is arranged on the lower surface of the base 10, and the bottom of the pull rod groove 130 is arranged in the base 10; and

the push rod movable cavity 160 is arranged between the lock hole 110 and the pull rod groove 130, a chuck opening 120 which is used for communicating the push rod movable cavity 160 with the lock hole 110 is arranged on one side of the push rod movable cavity 160 adjacent to the lock hole 110, and a limit groove 140 and a positioning hole 150 which are used for communicating the push rod movable cavity 160 with the pull rod groove are arranged on one side of the push rod movable cavity 160 adjacent to the pull rod groove;

clamping mechanism, said clamping mechanism comprising

The pull rod 210 is positioned in the pull rod groove 130, the bottom of the pull rod 210 is connected with the bottom of the pull rod groove 130 through a spring 220, and a hook 230 is arranged at the top of the pull rod 210;

the push rod 240 is located in the push rod movable cavity 160, one end of the push rod 240 is movably connected with the pull rod 210, the other end is connected with a chuck 250, and the chuck 250 is matched with the chuck opening 120; and

the positioning teeth 260 are fixedly arranged on the pull rod 210, the positioning teeth 260 face the push rod movable cavity 160, the positioning teeth 260 are matched with the positioning holes 150, and the positioning holes 150 are positioned in the moving stroke of the positioning teeth 260;

the clamping arm 30 is located outside the base 10, and one end of the clamping arm 30 is connected with the upper surface of the base 10.

The shape of the base 10 is an ellipsoid or a cylinder.

The collet 250 includes a first hemispherical protrusion and a second hemispherical protrusion forming a gap therebetween for gripping the collet arm 30.

The clamping arm 30 is a circular silicone tube.

The tail end of the arm 30 may be tapered (not shown) to facilitate the arm passing into and out of the locking aperture 110.

One end of the lock hole 110 located on the upper surface of the base 10 is provided with a bell mouth for facilitating penetration of the clamping arm 30.

The horn mouth is convenient for the clamping arm to penetrate.

Example 2

The vascular clamp provided in this example is different from the vascular clamp of embodiment 1 in that one end of the locking hole 110 located on the upper surface of the base 10 is provided with a bell mouth for facilitating penetration of the clamping arm 30, and the bell mouth is provided for facilitating penetration of the clamping arm 30 from the locking hole 110, as shown in fig. 2.

Example 3

The embodiment provides a clamping method of a vascular clamp, which specifically comprises the following steps:

when the blood vessel needs to be closed, the base 10 is placed below the blood vessel which needs to be closed, the clamp arm 30 bypasses the blood vessel, penetrates from the position of the lock hole 110 on the upper surface of the base 10, after penetrating, the clamp arm 30 and the upper surface of the base 10 form a binding ring around the blood vessel, the size of the binding ring changes along with the movement of the clamp arm 30, the blood vessel is closed or released, after the clamp arm 30 penetrates through the lock hole 110, penetrates out of the lower surface of the base 10 from the lock hole 110 and penetrates through the hook 230, after the clamp arm 30 is further pulled by a user towards the direction, the hook 230 moves towards the direction of the user under the driving of the clamp arm 30, the pull rod 210 simultaneously moves towards the direction of the user, meanwhile, the push rod 240 moves towards the horizontal direction from the inclined state under the driving of the pull rod 210, as shown in fig. 3, at the moment, the clamp 250 is squeezed into the lock hole 110 through the clamp opening 120, the clamp arm 30 in the lock hole 110, the positioning teeth 260 on the pull rod 210 enter the positioning hole 150, and the blood vessel is locked.

When the blood vessel needs to be loosened, the clamping arm 30 is pulled again in the direction of the operator, so that after the positioning teeth 260 are moved out of the positioning holes 150, the pull rod 210 is reset under the tension of the spring 220, meanwhile, the push rod 240 is driven by the pull rod 210 to return to the inclined state from the horizontal state, the clamping head 250 slides out from the clamping head opening 120, the binding ring formed by the clamping arm 30 and the upper surface of the base 10 is enlarged, and the blood vessel is loosened.

Claims

1. A vascular clip, comprising:

a base (10), wherein the base (10) is internally provided with

The lock hole (110) is cylindrical, and the lock hole (110) is communicated with the upper surface and the lower surface of the base (10) in a penetrating manner;

the pull rod groove (130), the pull rod groove (130) is parallel to the lock hole (110), an opening of the pull rod groove (130) is arranged on the lower surface of the base (10), and the bottom of the pull rod groove (130) is arranged in the base (10); and

the push rod movable cavity (160), the push rod movable cavity (160) is arranged between the lock hole (110) and the pull rod groove (130), a chuck opening (120) which is communicated with the push rod movable cavity (160) and the lock hole (110) is formed in one side, adjacent to the lock hole (110), of the push rod movable cavity (160), and a limit groove (140) and a locating hole (150) which are communicated with the push rod movable cavity (160) and the pull rod groove (130) are formed in one side, adjacent to the pull rod groove (130);

clamping mechanism, said clamping mechanism comprising

The pull rod (210) is positioned in the pull rod groove (130), the bottom of the pull rod (210) is connected with the bottom of the pull rod groove (130) through a spring (220), and a hook (230) is arranged at the top of the pull rod (210);

the push rod (240) is positioned in the push rod movable cavity (160), one end of the push rod (240) is movably connected with the pull rod (210), the other end of the push rod is connected with a chuck (250), and the chuck (250) is matched with the chuck opening (120); and

the positioning teeth (260) are fixedly arranged on the pull rod (210), the positioning teeth (260) face the push rod movable cavity (160), the positioning teeth (260) are matched with the positioning holes (150), and the positioning holes (150) are positioned in the moving stroke of the positioning teeth (260);

the clamping arm (30) is positioned outside the base (10), and one end of the clamping arm (30) is connected with the upper surface of the base (10).

2. Vascular clamp according to claim 1, characterized in that the base (10) is in the shape of an ellipsoid or cylinder.

3. The vascular clamp of claim 1, wherein the collet (250) includes a first hemispherical protrusion and a second hemispherical protrusion forming a gap therebetween for gripping the collet arm (30).

4. Vascular clamp according to claim 1, characterized in that the clamping arms (30) are circular silicone tubes.

5. Vascular clamp according to claim 1, characterized in that the trailing end of the clamping arm (30) is tapered.

6. Vascular clamp according to claim 1, characterized in that the locking hole (110) is provided at one end of the upper surface of the base (10) with a flare facilitating penetration of the clamping arm (30).