CN111772720A

CN111772720A - Vascular clamp

Info

Publication number: CN111772720A
Application number: CN202010658866.7A
Authority: CN
Inventors: 王成勇; ***
Original assignee: Guangdong University of Technology
Current assignee: Guangdong University of Technology
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2020-10-16

Abstract

The invention discloses a vascular clamp which comprises a first supporting part and a second supporting part which are separately arranged; a first operating part extending upward from a first end of the first support part, and a second operating part extending upward from a first end of the second support part; the first clamping part extends upwards from the second end of the first supporting part, the second clamping part extends upwards from the second end of the second supporting part, and the distance between the first clamping part and/or the second supporting part and a middle vertical plane between the first supporting part and the second supporting part is gradually increased upwards from the first supporting part or the second supporting part; the deformation part is connected with the extension end of the first clamping part and the extension end of the second clamping part, and the operation part can enable the deformation part to deform. The center of gravity of the vascular clamp is lower than that of the blood vessel when in use, so that the tissue damage caused by pulling and twisting can be reduced, and the volume does not occupy the visual field during operation.

Description

Vascular clamp

Technical Field

The invention relates to the technical field of medical instruments, in particular to a vascular clamp used in clinical operation.

Background

A vascular clamp refers to a device for continuously clamping a blood vessel for inhibiting the flow of blood in clinical operations. In plastic surgery, neurosurgery and microsurgery, blood vessels are delicate and vulnerable, with serious consequences of vascular injury. The existing vascular clamp generally comprises an upper clamp and a lower clamp, the upper clamp and the lower clamp are connected through a rotating shaft, so that the upper clamp and the lower clamp at the front end of the rotating shaft form a clamping part, and the upper clamp and the lower clamp at the rear end of the rotating shaft form a handheld part. The existing vascular clamp has the following problems:

(1) the operation steps are more. The existing hemostatic clamp needs to cut the tissue under the blood vessel, so that the longer blood vessel is dissociated and sutured again after operation, thereby increasing the operation time and the operation risk.

(2) The vascular clamp, whether made of metal or resin, has a high center of gravity, the size of the vascular clamp is far larger than the diameter of a blood vessel, the blood vessel can be obviously pulled and twisted during clamping, and the operation is influenced and the tissue is easily damaged; meanwhile, the bulky vascular clamp influences the operation during the operation and occupies an originally small operation visual field.

(3) The metal vascular clamp and the resin vascular clamp are not integrally formed, and the processing technology is multiple and complex.

Thus, existing vascular clamps are subject to improvement.

Disclosure of Invention

The invention aims to overcome the defects of multiple operation steps, easy pulling and twisting of blood vessels to cause tissue damage and large volume occupying the operation visual field in the application of the existing vascular clamp, and provides the vascular clamp.

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

a vascular clamp, comprising:

the supporting part comprises a first supporting part and a second supporting part which are separately arranged;

an operating part including a first operating part upwardly extended from a first end of the first support part and a second operating part upwardly extended from a first end of the second support part;

the clamping part comprises a first clamping part and a second clamping part, the first clamping part extends upwards from the second end of the first supporting part, the second clamping part extends upwards from the second end of the second supporting part, and the distance of the first clamping part and/or the second supporting part relative to a middle vertical plane between the first supporting part and the second supporting part is gradually increased upwards from the first supporting part or the second supporting part;

the deformation part is connected with the extension end of the first clamping part and the extension end of the second clamping part, and the operation part can enable the deformation part to deform.

Further, the bottom of the first supporting part and/or the second supporting part is provided with a horizontal supporting surface.

Furthermore, support anti-skidding lines are arranged on the horizontal support surface.

Further, the first operating portion and the second operating portion are provided with insertion holes into which an operating tool is inserted to make the first operating portion and the second operating portion move away from or approach to each other.

Further, the first operating portion extends upward from the first end of the first supporting portion to above the deformation portion, and the second operating portion extends upward from the first end of the second supporting portion to above the deformation portion.

Furthermore, clamping anti-skidding lines are arranged on the opposite surfaces of the first clamping portion and the second clamping portion.

Further, the first clamping part and the second clamping part form a taper angle of 5-25 degrees.

Further, the support portion, the operation portion, the clamping portion and the deformation portion are arranged according to the weight: deformation portion < clamping portion < operating portion < support portion.

Further, the vascular clamp is integrally formed.

Furthermore, the vascular clamp is made of amorphous alloy, and the surface of the vascular clamp is coated with an easy-adhesion coating.

Compared with the prior art, the invention has the beneficial effects that:

when the vascular clamp is used, the first clamping part and the second clamping part clamp a blood vessel together, the first supporting part and the second supporting part below the first clamping part and the second clamping part support the blood vessel, and the gravity center of the whole vascular clamp is lower than that of the blood vessel when the blood vessel is clamped, so that the pulling and damage to the blood vessel can be reduced; the whole small of vascular clamp, simultaneously, use the operation portion to operate the vascular clamp as the fulcrum when centre gripping blood vessel, can not block the field of vision when the operation, liberate operation space.

Drawings

FIG. 1 is a schematic structural view of a vascular clamp in accordance with one embodiment of the present invention;

FIG. 2 is a schematic structural view of a supporting skid-resistant line of a vascular clamp in accordance with one embodiment of the present invention;

FIG. 3 is a schematic structural view of a gripping skid resistant groove of a vascular clamp according to an embodiment of the present invention;

FIG. 4 is a schematic view of a vascular clamp according to one embodiment of the present invention in use;

fig. 5 is a schematic structural view of a vascular clamp according to another embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of the present invention.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically stated otherwise.

In the description of the present application, it should be noted that unless otherwise specifically stated or limited, the terms "connected," "communicating," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a connection through an intervening medium, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1 to 4, fig. 1 shows a structure of a vascular clamp according to an embodiment of the present invention, which includes a supporting portion, an operating portion, a clamping portion, and a deforming portion 4. The support portion, the operation portion, the holding portion, and the deformation portion 4 are preferably formed by integral molding. Specifically, the support part comprises a first support part 11 and a second support part 12 which are separately arranged, and when the blood vessel 5 is clamped, the first support part 11 and the second support part 12 provide support for the soft tissue 6 below the blood vessel 5, so that the blood vessel 5 is prevented from being pulled and operated. The operating portion includes a first operating portion 21 extending upward from a first end of the first support portion 11, and a second operating portion 22 extending upward from a first end of the second support portion 12. The clamping portion comprises a first clamping portion 31 extending upwards from the second end of the first supporting portion 11 and a second clamping portion 32 extending upwards from the second end of the second supporting portion 12, and the distance between the first clamping portion 31 and/or the second supporting portion and a middle vertical plane between the first supporting portion 11 and the second supporting portion 12 is gradually increased upwards from the first supporting portion 11 or the second supporting portion 12. The end of the first clamping portion 31 in the extending direction extending upwards from the second end of the first supporting portion 11 is the extending end of the first clamping portion 31, and similarly, the end of the second clamping portion 32 in the extending direction extending upwards from the second end of the second supporting portion 12 is the extending end of the second clamping portion 32. The deformable portion 4 is formed by connecting an extending end of the first clamping portion 31 and an extending end of the second clamping portion 32, and the deformable portion 4 is deformed by operating the first operating portion 21 and the second operating portion 22. For example, by moving the first operating portion 21 and the second operating portion 22 away from each other, the blood vessel 5 can be clamped by increasing the angle of the clamping opening 30 formed between the first end of the first supporting portion 11 and the first end of the second supporting portion 12 between the first clamping portion 31 and the second clamping portion 32, and then released so that the first operating portion 21 and the second operating portion 22 approach each other and return to the normal distance, thereby clamping the blood vessel 5. Optionally, the first and second clamping portions form a 5-25 ° taper angle, that is: the opening angle a of the nip 30 in the undeformed state is 5 to 25 °.

One possible implementation is: each of the first and

second operating portions

21 and 22 is provided with an insertion hole 2a into which an operating tool is inserted to move the first and second operating

portions

21 and 22 away from or toward each other. When in use, the opening forceps in the prior art are adopted, two small rods of the opening forceps are respectively inserted into the insertion holes 2a on the first operation part 21 and the second operation part 22 and are opened, so that the angle of the clamping opening 30 is increased, then the vascular clamp is placed above the blood vessel 5, the first supporting part 11 and the second supporting part 12 respectively contact with the soft tissue 6 below the blood vessel 5, then the opening forceps are loosened, the clamping opening 30 is reset, and the clamping operation is completed. On the contrary, when the vascular clamp is to be taken down, the opening 30 is opened by the opening clamp, and then the vascular clamp is taken down.

Referring to fig. 5, fig. 5 is a schematic structural diagram of another embodiment of the present invention. Specifically, the vascular clamp differs from that shown in fig. 1 in that: the first operating portion 21 extends upward from the first end of the first support portion 11 to above the deformation portion 4, and the second operating portion 22 extends upward from the first end of the second support portion 12 to above the deformation portion 4. In this way, the lengths of the first operating part 21 and the second operating part 22 are both longer than the first clamping part 31 and the second clamping part 32, when in operation, the free ends of the first operating part 21 and the second operating part 22 are directly clamped by forceps, the clamping opening 30 is spread, the vascular clamp is placed above the blood vessel 5, the first supporting part 11 and the second supporting part 12 contact with the soft tissue 6 below the blood vessel 5, and then the forceps are loosened, so that the clamping operation is completed. On the contrary, when the vascular clamp is to be taken down, the vascular clamp is taken down after the clamp opening 30 is opened by forceps. Optionally, the first operating portion 21 and the second operating portion 22 are respectively supported by the first supporting portion 11 and the second supporting portion to extend obliquely upward so that the first operating portion 21 and the second operating portion 22 form an included angle with an angle greater than 0 ° but smaller than 90 °, which can be supported by the clamping opening 30 more easily without occupying an operating field of view.

One possible implementation is: the bottom of the first support part 11 and/or the second support part 12 has a horizontal support surface so that the blood vessel clamp can stand stably when clamping the blood vessel 5. Optionally, the horizontal support surface is provided with support skid-proof grains 1a, as shown in fig. 2. The supporting anti-skid stripes 1a are formed by staggered oblique line stripes.

One possible implementation is: the opposite surfaces of the first clamping part 31 and the second clamping part 32 are provided with clamping antiskid lines 3 a. The clamping antiskid stripes 3a are composed of diagonal stripes which are arranged in a staggered mode, and are shown in figure 3.

One possible implementation is: the first and

second clamping portions

31 and 32 form a 5-25 ° cone angle.

One possible implementation is: the support portion, the operation portion, the clamping portion and the deformation portion 4 are arranged according to the weight: deformation portion 4< clamping portion < operating portion < support portion. Further lowering the center of gravity of the vascular clamp and reducing the pulling and the damage to the blood vessel 5.

One possible implementation is: the vascular clamp is made of amorphous alloy, and the surface of the vascular clamp is coated with an easily-adhered coating. The amorphous alloy has the characteristics of high strength and high toughness, is integrally formed by die casting, and is particularly suitable for medical thin-wall parts. The easy-adhesion coating can be a nano titanium coating, a calcium silicate ceramic coating and the like, and has an anti-skid effect on soft tissue adhesion.

The above description is only for the preferred embodiment of the present invention, but the present invention should not be limited to the embodiment and the disclosure of the drawings, and therefore, all equivalent or modifications that do not depart from the spirit of the present invention are intended to fall within the scope of the present invention.

Claims

1. A vascular clamp, comprising:

2. The vascular clip of claim 1, wherein: the bottom of the first supporting part and/or the second supporting part is provided with a horizontal supporting surface.

3. The vascular clip of claim 2, wherein: and the horizontal supporting surface is provided with supporting anti-skid grains.

4. The vascular clip of claim 1, wherein: the first operation portion and the second operation portion are provided with insertion holes into which an operation tool is inserted so that the first operation portion and the second operation portion are away from or close to each other.

5. The vascular clip of claim 1, wherein: the first operation part extends upwards to the upper side of the deformation part from the first end part of the first supporting part, and the second operation part extends upwards to the upper side of the deformation part from the first end part of the second supporting part.

6. The vascular clip of claim 1, wherein: and clamping anti-skid grains are arranged on the opposite surfaces of the first clamping part and the second clamping part.

7. The vascular clip of claim 1, wherein: the first clamping portion and the second clamping portion form a 5-25 degree taper angle.

8. The vascular clip of claim 1, wherein: the support portion, the operation portion, the holding portion, and the deformation portion are arranged in the order of weight, and the deformation portion < holding portion < operation portion < support portion.

9. The vascular clip of claim 1, wherein: the vascular clamp is integrally formed.

10. The vascular clip of claim 1, wherein: the vascular clamp is made of amorphous alloy, and the surface of the vascular clamp is coated with an easily-adhered coating.