Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
In the description of the embodiments of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only used for convenience in describing the embodiments of the present application and for simplification of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
Blood vessels refer to a series of conduits through which blood flows. Blood vessels are located throughout the body, except for the cornea, hair, nails, dentin, and epithelium. The blood vessels are classified into arterial blood vessels, venous blood vessels and capillary blood vessels according to different structural functions.
Vascular clamps are generally non-invasive, delicate surgical instruments used to intraoperatively clamp a blood vessel to block blood flow and secure the blood vessel, thereby assisting an operator in suturing the blood vessel during microsurgical procedures.
For example, when performing end-to-end anastomosis, it is often necessary to check the blood flow, for example, when the blood vessel is spurted vigorously, a vascular clamp is required to block the blood flow.
As a use scene, the use frequency of the vascular clamp in microsurgery and vascular surgery is high. When the blood vessel is repaired, the output blood of the anastomotic opening is reduced to the minimum under the condition that the tourniquet is used, and the blood still seeps in the lumen of the blood vessel to be anastomosed, so the bleeding can be completely blocked at the broken end of the blood vessel by using the vascular clamp, and the exploration and the anastomosis of the lumen of the blood vessel are facilitated. Another situation is that when the tourniquet is not used, the blood flow at the anastomotic end can be blocked by using a vascular clamp to stop bleeding.
Fig. 1 is a schematic structural diagram of a vascular clamp of the prior art, and as shown in fig. 1, the vascular clamp of the prior art generally includes an upper clamp arm 100, a hinge 200, and a lower clamp arm 300, wherein the upper clamp arm 100 is rotatably connected with the lower clamp arm 300 through the hinge 200; when the vascular anastomosis is performed, people pinch the tail part of the vascular clamp to open the clamping opening of the vascular clamp and send the vascular clamp to the position of a vascular cavity, then the tail part of the vascular clamp is released, the clamping opening of the vascular clamp is closed by the force of the elastic hinge 200 in the tail part of the vascular clamp, and finally the purpose of blocking blood flow is achieved.
However, because the upper clamping arm 100 of the existing vascular clamp is rotatably connected with the lower clamping arm 300 through the hinge 200, when the vascular clamp is closed, the blood vessel slides from the upper and lower arms of the blood vessel, the operation needs to be repeated, in the operation process, the hinge 200 can be clamped and pressed on the vascular adventitia, so that the injury of the vascular adventitia occurs, when the vascular clamp is taken down, the vascular anastomosis end is pulled, so that the suture line cuts the blood vessel wall, and the vascular anastomosis end is loosened and injured, so that the blood leakage of the anastomosis end occurs.
In order to solve the above problems, embodiments of the present application provide a vascular clamp, in which a body is configured as a disconnected annular structure, and a clamping mechanism is disposed on the body, so that the clamping mechanism is used for clamping a blood vessel in the annular structure, thereby at least solving the technical problem of injury of an adventitia of the blood vessel caused by a hinge in the existing vascular clamp;
the vascular clamps of the embodiments of the present application are described in detail below with reference to the various figures.
FIG. 2 is a schematic view of the body of the present embodiment at an angle; FIG. 3 is a schematic structural view of the body at another angle in the embodiment of the present application; fig. 4 is a schematic structural diagram of a vascular clamp according to an embodiment of the present application.
Referring to fig. 2-4, the embodiment of the present application provides a vascular clamp, which includes a body 1 and a clamping mechanism 2, wherein the body 1 is used as a main body part of the vascular clamp and is used for installing the clamping mechanism 2, and the body 1 is arranged into a ring-shaped structure, and the clamping mechanism 2 is arranged on the body 1, so that the clamping mechanism 2 is used for clamping a blood vessel in the ring-shaped structure; that is, in the embodiment of the present application, the annular structure is engaged with the clipping mechanism 2 to clip the blood vessel inside the annular structure, and for the convenience of understanding some examples in the present application, for example, in one embodiment, "clipping" may also be understood as "tightening"; compared with the prior art, this application embodiment conceives through the mode of avoiding using the hinge to solve current vascular clamp and cause the technical problem of adventitia damage because of the hinge, reduce the risk among the operation process, avoid pressing the adventitia tissue of blood vessel because of the card appears easily in the clearance that the hinge department of current vascular clamp exists, tractive blood vessel when withdrawing from the vascular clamp, still can take place because of the tearing condition appears in card pressure/tractive anastomosis end when serious.
For example, in practical use, the body 1 may be a columnar/tubular structure, and the body 1 may be formed into a ring structure by bending a columnar/tubular object.
It is understood that the "ring-shaped structure" herein refers to an object having a ring-shaped structure as a whole, for example, it may be a circular ring, a rectangle, etc., that is, the cross section of the body 1 may be a triangle, a square, a circle, etc.
In addition, in order to facilitate the removal of the vascular clamp after the use, 1 opening may be further provided on the body 1, that is, the annular structure may be a broken annular structure, so that people can take the vascular clamp of the embodiment of the present application out of a blood vessel through the opening; that is, the term annular structure as used herein specifically includes both broken annular structures and non-broken annular structures.
The broken ring-shaped structure may be a U-shaped structure, a broken ring-shaped structure, or another suitable structure, wherein if the broken ring-shaped structure is a broken ring-shaped structure, the broken position corresponds to an opening, so that the vascular clamp can be taken out from the blood vessel after the vascular clamp is used (e.g., after anastomosis).
It will be appreciated that the ring-shaped structure may also be non-broken, i.e. non-broken ring-shaped structure, e.g. cut directly with scissors or the like after anastomosis has ended; or the body 1 is arranged to be similar to a conventional clamp structure, so that after the anastomosis of the blood vessel is completed, people can open the clamp structure to take out the body 1.
With continued reference to fig. 2-4, at least a portion of the body 1 is helical. In practical use, when the blood vessel needs to be clamped, one end of the blood vessel can be inserted into the spiral body 1 so as to be convenient for clamping operation through the clamping mechanism 2, in other words, at least part of the body 1 is spiral, which is better than that of a hand of people, and the blood vessel is held by the hand, and the tighter the blood vessel is held, the tighter the blood vessel is correspondingly contracted; when the vascular clamp needs to be taken out, at least part of the body 1 is in a spiral shape, so that the body 1 is provided with an opening, and the vascular clamp can be rotated out from the blood vessel through the opening in a mode of integrally rotating the vascular clamp.
In addition, the spiral vascular clamp is equivalently sleeved on the blood vessel, so when the vascular clamp is taken out after anastomosis is finished, the vascular clamp is not worried about being unintentionally lost due to the tiny vascular clamp, and extra time is spent on searching.
The number of turns of the spiral is not limited herein, for example, the number of turns of the spiral body 1 may be 1.5 as shown in fig. 2-4, and of course, in other examples, the number of turns may be 1, 2, 3, etc., but the number of turns is not preferably too large, such as 10, because if the number of turns is too large, it takes time and labor to turn the blood vessel one turn until the blood vessel is turned out of the opening.
According to the embodiment of the application, at least part of the body 1 is in a spiral shape, so that people can take out the vascular clamp conveniently; in addition, at least part of the body 1 is spiral, so the surface is smooth, and the possibility of damaging blood vessels and/or soft tissues around the blood vessels and the like can be reduced in the using process; therefore, the vascular clamp can conveniently, quickly and nondestructively block and reoccurrent blood flow in the lumen, reduce the free length of the blood vessel to be anastomosed, can be placed and taken out under a microscope, and avoids the loss or omission of the vascular clamp through catheter connection.
With continued reference to fig. 2-4, the clipping mechanism 2 may include an air bag disposed on the body 1, the air bag being disposed along the extension direction of the ring structure; that is, for example, the balloon may be an arc structure/ring structure as a whole, and is disposed inside the body 1, and the volume of the balloon is controlled to substantially enclose the blood vessel located in the ring structure of the body 1, and after the volume of the balloon is continuously increased, the balloon will gradually squeeze the blood vessel until the blood squeezed into the blood vessel cannot be retained, so that after the volume of the balloon is continuously increased, the balloon will gradually squeeze the blood vessel until the blood vessel located in the ring structure is clamped.
This application embodiment is through at least part setting with the gasbag along the loop configuration extending direction to make the gasbag also form approximate arc structure/loop configuration, for example, exemplarily, can entangle the blood vessel, through the volume of control gasbag, with control blood vessel elasticity, compare in current vascular clamp, this application embodiment is that the clamp of blood vessel is closed through the gasbag realization, because the gasbag is soft usually the material, like rubber material, compare in conventional stainless steel material, can effectively reduce the damage to blood vessel.
In addition to the above examples, the clamping mechanism 2 may also have other suitable structures, fig. 5 is a schematic structural diagram of the blood vessel clamp according to the embodiment of the present application in other examples, as shown in fig. 5, for convenience of description, taking the body 1 as a U-shaped structure as an example, 1 through hole may be formed at one end of the U-shaped structure, and the clamping mechanism 2 having 1 rack-shaped structure may be connected at the other end of the U-shaped structure, and a strip body of the rack may be passed through the through hole, and the annular structure (U-shaped structure) may also be deformed by cooperation (e.g., engagement) between the teeth of the rack and the through hole, e.g., pulling the rack, so as to clamp the blood vessel in the annular structure (U-shaped structure).
Of course, in addition to the above-described clamping mechanism 2 having a rack-like structure, the clamping mechanism 2 having a rack-like structure may be replaced with a structure having a string-like shape or other suitable shape, as long as the U-shaped structure can be deformed and fixed (e.g., engaged) to clamp the blood vessel in the annular structure (U-shaped structure).
Fig. 6 is a schematic diagram of a vascular clamp according to an embodiment of the present invention, and referring to fig. 6, the vascular clamp according to the embodiment of the present invention may further include a balloon adjusting mechanism 3, the balloon adjusting mechanism 3 is communicated with the balloon, and the balloon adjusting mechanism 3 is configured to expand or contract the volume of the balloon.
The airbag adjusting mechanism 3 may include, for example, an injection device, or an insufflation device; for example, the liquid injection device, or the gas injection device, can be a conventional pump, so as to replace manual operation of inflating (liquid) and deflating (liquid) the airbag, and in addition, by arranging the liquid injection device, or the gas injection device, compared with manual operation of inflating (liquid) and deflating (liquid) the airbag, the control of the airbag volume can be realized more accurately.
It should be understood that the injection device and the insufflation device are only preferred, and in other examples, those skilled in the art can also set other suitable types according to actual needs, as long as the clamping closure of the blood vessel can be realized by changing the volume of the balloon.
FIG. 6 is a schematic diagram of a vascular clamp according to an embodiment of the present disclosure, which may further include a controller 4, wherein the controller 4 is connected to the infusion device, or the controller 4 is connected to, e.g., electrically connected to, the insufflation device; in actual use, the controller 4 is arranged, so that the control is convenient for people to control; for convenience of description, the balloon is taken as an example of the clamping mechanism 2 for detailed explanation, for example, the embodiment of the present application may set a predetermined value for clamping the blood vessel by the balloon on the controller 4, so that the balloon can clamp the blood vessel exactly, and the blood vessel is prevented from being damaged (e.g., crushed) due to the excessive volume of the balloon.
The vascular clamp provided by the embodiment of the application can also comprise a control valve, wherein the control valve is positioned between the air bag and the air bag adjusting mechanism 3 and is respectively communicated with the air bag and the air bag adjusting mechanism 3; in practical use, the volume of the air bag is controlled by adjusting the opening and closing of the control valve, so that the volume of the air bag is kept at a fixed size, and energy is saved.
The clamping mechanism 2 can be a clamping mechanism 2 made of silica gel; through the clamping mechanism 2 that sets up the silica gel material and make, because the silica gel material texture is softer, through clamping mechanism 2 and the vascular direct contact who makes the silica gel material, can prevent that clamping mechanism 2 from causing the damage to blood vessel and the soft tissue of vascular position department etc..
Compared with the existing vascular clamp made of stainless steel, the vascular clamp has the advantages that when the vascular clamp is in use, the situation that when the vascular clamp is in contact with a blood vessel, the surface of the existing vascular clamp made of stainless steel is smooth, so that the blood vessel is easy to fall off from the vascular clamp in the clamping process due to the fact that the blood vessel is clamped by the vascular clamp too smoothly can be effectively avoided, the situation that the blood vessel is repeatedly clamped due to the fact that the existing vascular clamp is too slippery can be avoided by arranging the clamping mechanism 2 made of silica gel, and in other words, the efficiency of the vascular clamp in use can be improved by arranging the clamping mechanism 2 made of silica gel; in addition, because the head of the existing vascular clamp has a tooth-shaped structure (not shown in fig. 1), the vascular clamp made of the silica gel material is not easy to damage the outer side wall of the blood vessel when being used.
It is understood that the body 1 of the vascular clamp provided in the embodiments of the present application may be a body 1 made of a conventional hard plastic material, a conventional stainless steel material, or the like.
The clamping mechanism 2 can be a clamping mechanism 2 made of transparent materials; in actual use, in order to facilitate people to observe whether the clamping mechanism 2 clamps the blood vessel and the degree of clamping (tightness degree), the clamping mechanism 2 is specially made of transparent material to form the clamping mechanism 2.
With continued reference to fig. 6, the vascular clamp provided in the embodiment of the present application may further include a communicating tube and scale marks 5, and the balloon is communicated with the balloon adjusting mechanism 3 through the communicating tube; the scale marks 5 are arranged on the side wall of the communicating pipe, and the scale marks 5 extend along the axial direction of the communicating pipe; in practical use, the scale marks 5 are arranged on the communicating pipe, and the purpose is mainly based on two aspects: firstly, because the liquid can flow through the liquid injection pipe in the liquid injection process of the liquid injection device, people can conveniently observe the amount of the liquid injected into the air bag by the liquid injection device, so that people can conveniently determine the preset value when the air bag is clamped and closed, and further the damage caused by too tight contraction of the blood vessel due to too large amount of the injected liquid is avoided by taking the preset value as a reference; secondly, people can be convenient for start and stop the priming device and refer to, for example, the accessible is observed scale mark 5 to control the start and stop of priming device.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.