CN108992126B

CN108992126B - Vascular clamp

Info

Publication number: CN108992126B
Application number: CN201811059846.7A
Authority: CN
Inventors: 李坚
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-12
Filing date: 2018-09-12
Publication date: 2023-09-01
Anticipated expiration: 2038-09-12
Also published as: CN108992126A

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

Technical Field

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

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.

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 penetrates through the upper surface and the lower surface of the base;

the pull rod channel is parallel to the upper surface and the lower surface of the base, and one end of the pull rod channel is communicated with the lock hole; and

the fan-shaped groove is parallel to the lock hole, the bottom of the fan-shaped groove is communicated with the other end of the pull rod channel, the notch of the fan-shaped groove is arranged on the lower surface of the base, and the notch of the fan-shaped groove is further provided with a spring plate;

the clamping arm is arranged outside the base, and one end of the clamping arm is connected with the upper surface of the base;

the clamping mechanism comprises a pull rod, the pull rod is arranged in the pull rod channel, one end of the pull rod is provided with a chuck positioned in the lock hole, and the other end of the pull rod is provided with a clamping hook positioned in the fan-shaped groove.

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

An ellipsoid or cylinder shaped base avoids the possibility of injuring the perivascular tissue.

Further preferably, the edges of the ellipsoid are provided with a chamfer.

The chamfer arranged at the edge of the ellipsoid further avoids the possibility that the base hurts the tissue around the blood vessel.

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

The chuck is positioned in the lock hole and is driven by the pull rod to flexibly rotate in the lock hole.

Preferably, the clamping arm is a circular silicone tube.

The round silicone tube has good tensile property, no damage to blood vessels, difficult damage in the use process and high safety performance.

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

The tail end of the conical clamping arm is convenient for the clamping arm to penetrate in and out from 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 arranged to facilitate the penetration of the clamping arm from the lock hole.

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. the notch in the fan-shaped groove is provided with the elastic sheet, so that the clamp arm is prevented from sliding after the blood vessel is locked, and the stability of the blood vessel clamp in use is improved.

Drawings

Fig. 1 is a schematic structural view of a vascular clip.

Fig. 2 is a schematic cross-sectional view of the vascular clamp in the direction A-A.

Fig. 3 is a schematic view of a section of the vascular clamp in the direction B-B.

Fig. 4 is a schematic view of a clamping mechanism.

Fig. 5 is a schematic view of a cross section in the A-A direction of the vascular clamp of example 2.

Fig. 6 is a schematic view of a cross section in the A-A direction of the vascular clamp of example 3.

Fig. 7 is a schematic view of a cross section in the A-A direction of the vascular clamp of example 4.

Fig. 8 is a bottom view of the bottom of the base before the clip arms pass through the locking holes.

Fig. 9 is a schematic view of the position of the hook after the arm passes through the lock hole and the hook and is pulled toward the operator.

Fig. 10 is a bottom view of the bottom of the base after the clip arms pass through the locking holes.

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 figures 1, 2 and 3, comprising:

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

A lock hole 110, wherein the lock hole 110 is communicated with the upper surface and the lower surface of the base 10 in a penetrating way;

a pull rod channel 120, wherein the pull rod channel 120 is parallel to the upper and lower surfaces of the base 10, and one end of the pull rod channel 120 is communicated with the lock hole 110; and

the fan-shaped groove 130 is parallel to the lock hole 110, the groove bottom of the fan-shaped groove 130 is communicated with the pull rod channel 120, the notch of the fan-shaped groove 130 is arranged on the lower surface of the base 10, and the notch of the fan-shaped groove 130 is further provided with a spring plate 140;

the clamping arm 20, one end of the clamping arm 20 is connected with the upper surface of the base 10, and the clamping arm 20 is a circular silicone tube;

the clamping mechanism 30, as shown in fig. 4, the clamping mechanism 30 includes a pull rod 310, the pull rod 310 is disposed in the pull rod channel 120, one end of the pull rod 310 is provided with a chuck 320 located in the lock hole 110, the other end is provided with a hook 330 located in the fan-shaped groove 130, the chuck 320 includes a first hemispherical protrusion and a second hemispherical protrusion, a gap for passing through a clamping arm is formed between the first hemispherical protrusion and the second hemispherical protrusion, the chuck 320 is located in the lock hole 110, and is flexibly rotated in the lock hole 110 under the driving of the pull rod 310.

Example 2

The vascular clamp provided in this example is different from that of example 1 in that the edge of the ellipsoidal base 10 is provided with a chamfer as shown in fig. 5.

Example 3

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 20, and the bell mouth is provided for facilitating penetration of the clamping arm 20 from the locking hole 110, as shown in fig. 6.

Example 4

The vascular clamp provided in this example differs from the vascular clamp of example 1 in that the tail end of the clip arm 20 is tapered, and the tapered tail end facilitates the insertion and removal of the clip arm 20 from the locking hole 110, as shown in fig. 7.

Example 5

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

when the blood vessel needs to be closed, the clamping arm 20 penetrates from the inlet of the upper surface of the base 10 through the lock hole 110, a binding ring for closing the blood vessel is formed between the clamping arm 20 and the base 10, and before the clamping arm 20 penetrates into the lock hole, the clamping hook 330 on the clamping mechanism is positioned at the position shown in fig. 3, the clamping head 320 comprises a first hemispherical bulge and a second hemispherical bulge, and at the moment, a gap between the two hemispherical bulges is communicated with the lock hole 110 for the clamping arm 20 to penetrate through, as shown in fig. 8. After the arm clamp 20 penetrates the lock hole 110, the arm clamp 20 passes through the clamping hook 330, the arm clamp 20 is pulled towards the operator direction, the binding ring for closing the blood vessel between the arm clamp 20 and the base 10 is reduced, the blood vessel is closed due to the binding, the clamping hook 330 moves to the position of fig. 9 under the pulling of the arm clamp 20, the moving track of the clamping hook 330 is a sector smaller than 90 degrees as shown in fig. 10 in the bottom view, when the clamping hook 330 moves, the pull rod 310 drives the two hemispherical protrusions to rotate at the same time, after the two hemispherical protrusions rotate, the arm clamp 20 in the lock hole 110 is clamped by the gap between the two spherical protrusions and the lock hole 110, and then the arm clamp 20 is clamped by the elastic sheet 140 arranged at the notch of the fan-shaped groove 130, so that the arm clamp 20 is prevented from sliding, and the stability of the vascular clamp for closing the blood vessel is increased.

The vascular clamp provided by the invention 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. The clamp arm is a round 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. The notch in the fan-shaped groove is provided with the elastic sheet, so that the clamp arm is prevented from sliding after the blood vessel is locked, and the stability of the blood vessel clamp in use is improved.

Claims

1. A vascular clip, comprising:

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

A lock hole (110), wherein the lock hole (110) is communicated with the upper surface and the lower surface of the base (10) in a penetrating way;

the pull rod channel (120) is parallel to the upper surface and the lower surface of the base (10), and one end of the pull rod channel (120) is communicated with the lock hole (110); and

the fan-shaped groove (130) is parallel to the lock hole (110), the groove bottom of the fan-shaped groove (130) is communicated with the other end of the pull rod channel (120), the notch of the fan-shaped groove (130) is arranged on the lower surface of the base (10), and the notch of the fan-shaped groove (130) is further provided with a spring piece (140);

the clamping arm (20) is arranged outside the base (10), one end of the clamping arm (20) is connected with the upper surface of the base (10), and the tail end of the clamping arm (20) is conical;

the clamping mechanism (30), the clamping mechanism (30) comprises a pull rod (310), the pull rod (310) is arranged in the pull rod channel (120), one end of the pull rod (310) is provided with a clamping head (320) positioned in the lock hole (110), the other end of the pull rod is provided with a clamping hook (330) positioned in the fan-shaped groove (130), the clamping head (320) comprises a first hemispherical protrusion and a second hemispherical protrusion, and a gap for a clamping arm (20) to pass through is formed between the first hemispherical protrusion and the second hemispherical protrusion;

wherein, the lock hole (110) is located one end of the upper surface of the base (10) and is provided with a bell mouth which is convenient for the clamp arm (20) to penetrate.

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

3. Vascular clamp according to claim 1, characterized in that the clamping arms (20) are circular silicone tubes.