阅读说明：本技术 多角度血管吻合固定装置 (Multi-angle blood vessel anastomosis fixing device ) 是由 葛鹏磊 陈晓芳 吴阳 党晓卫 张弓 高志强 于 2020-04-19 设计创作，主要内容包括：本发明公开了一种多角度血管吻合固定装置,包括装置主体,装置主体设置轨道,轨道上依次安装第一连杆及第二连杆,第一连杆及第二连杆均可在轨道上来回滑动；第一连杆的远端铰接第三连杆,第二连杆的远端铰接第四连杆；第三连杆的远端通过万向节连接第一血管夹,第四连杆的远端通过万向节连接第二血管夹。本发明提供的多角度血管吻合固定器,具有在直线轨道上可来回滑动的血管夹,可以持续、稳定地牵拉、固定血管壁,能清晰地显露血管断端的前后壁,可根据游离的血管情况和其走行角度选用合适的血管夹,通过在血管夹上设置支撑架,有撑开血管腔的功能,对血管内膜无损伤,还可以多角度固定,尤其是对于呈不同角度走行的血管的牵拉、固定。(The invention discloses a multi-angle blood vessel anastomosis fixing device which comprises a device main body, wherein the device main body is provided with a track, a first connecting rod and a second connecting rod are sequentially arranged on the track, and both the first connecting rod and the second connecting rod can slide back and forth on the track; the far end of the first connecting rod is hinged with a third connecting rod, and the far end of the second connecting rod is hinged with a fourth connecting rod; the far end of the third connecting rod is connected with the first vascular clamp through a universal joint, and the far end of the fourth connecting rod is connected with the second vascular clamp through a universal joint. The multi-angle blood vessel anastomosis fixator provided by the invention is provided with the blood vessel clamp which can slide back and forth on the linear track, can continuously and stably draw and fix the blood vessel wall, can clearly expose the front wall and the rear wall of the broken end of the blood vessel, can select a proper blood vessel clamp according to the condition of the free blood vessel and the running angle of the free blood vessel, has the function of opening the blood vessel cavity by arranging the supporting frame on the blood vessel clamp, has no damage to the intima of the blood vessel, can fix the blood vessel at multiple angles, and particularly can draw and fix the blood vessel running at different angles.)

1. A multi-angle blood vessel anastomosis fixing device is characterized by comprising a device main body, wherein the device main body is provided with a track, a first connecting rod and a second connecting rod are sequentially arranged on the track, and the first connecting rod and the second connecting rod can slide back and forth on the track; the far end of the first connecting rod is hinged with a third connecting rod, and the far end of the second connecting rod is hinged with a fourth connecting rod; the far end of the third connecting rod is connected with the first vascular clamp through a universal joint, and the far end of the fourth connecting rod is connected with the second vascular clamp through a universal joint.

2. The multi-angle blood vessel anastomosis fixing device according to claim 1, wherein grooves for placing suture support frames are formed in the clamp bodies of the first blood vessel clamp and the second blood vessel clamp, and the suture support frames are connected in the grooves through hinges.

3. The multi-angle blood vessel anastomosis fixing device according to claim 1, wherein the rail is a linear groove formed in the device body, linear gear teeth are formed at the bottom of the linear groove, gears engaged with the gear teeth are mounted at the ends of the first connecting rod and the second connecting rod through gear shafts, and two ends of each gear shaft are mounted in strip-shaped hollowed holes formed in the side walls of the linear groove.

4. The multi-angle blood vessel anastomosis fixing device according to claim 3, further comprising a knob disposed outside the device body, wherein the knob is connected to one end of the gear shaft, and the knob is used for driving the gear to rotate so as to drive the connecting rod to move back and forth on the rail.

5. The multi-angle vascular anastomosis fixation device of claim 1, wherein a fastening nut is disposed at a hinge joint of the distal end of the first link and the third link, and a fastening nut is disposed at a hinge joint of the distal end of the second link and the fourth link.

6. The multi-angle vaso-anastomotic fixation device of claim 1, wherein the universal joint provides a tight fit connection between the distal end of the third link and the first vascular clamp, and wherein the universal joint provides a tight fit connection between the distal end of the fourth link and the second vascular clamp.

7. The multi-angle vaso-anastomotic fixation device according to claim 1, wherein the distal end of the third link is detachably connected to the first vascular clamp by a universal joint, and the distal end of the fourth link is detachably connected to the second vascular clamp by a universal joint.

8. The multi-angle vaso-anastomotic fixation device of claim 7, wherein the first vascular clamp is a vessel end vascular clamp or a vessel sidewall vascular clamp and the second vascular clamp is a vessel end vascular clamp or a vessel sidewall vascular clamp.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a multi-angle blood vessel anastomosis fixing device.

Background

It is known that in the case of vascular-related surgery, it is often necessary to cut a certain length of the vessel, then to draw the two severed ends together and then to perform end-to-end anastomosis. In portal hypertension or other special cases, it is also often necessary to perform an end-to-end or end-to-side anastomosis of two different vessels for the purpose of shunting or diverting flow. At present, when a main scalpel performs anastomosis at the end or the end side of a blood vessel, two vascular clamps are required to be clamped at the two ends of the blood vessel respectively, one assistant draws the vascular clamps together with two hands, and the other assistant lifts the blood vessel wall with the vascular clamps to expose the lumen, so that a fine anastomosis operation can be performed. When anastomosis is carried out, an assistant needs to adjust the angle of the blood vessel clamp in due time, and particularly when two blood vessels which do not run at 180 degrees are anastomosed, if the two hands of the assistant cannot rotate and fix the blood vessel clamp in a very coordinated and consistent manner so as to clearly expose the front wall and the rear wall of the blood vessel and keep a certain time, the consistency of the suture needle distance cannot be ensured, the blood vessel wall is very easy to tear, the blood vessel is twisted, and the chances of lumen stenosis and thrombus formation are increased.

At present, the prior art adopts the technical proposal that a microsurgical blood vessel retractor (publication number: CN 105769270A) and a fixing and suture auxiliary component (publication number: CN 205163141U) for blood vessel anastomosis are disclosed and patented. The prior art designs are directed to the problem that after a blood vessel is cut off, two cut ends are pulled and fixed together by a device, and the designs only can relatively conveniently perform anastomosis of the front wall of the blood vessel and are not suitable for exposure and anastomosis of the rear wall. Moreover, the lumen of the broken end of the blood vessel is in a hollow and flat state when no blood is full, although some patents design the supporting devices used in the lumen of the blood vessel, all of them can cause different degrees of damage to the lumen intima, and when the suturing is finished, the device is difficult to take out from the lumen of the blood vessel, so the feasibility of the practical operation of the devices is poor. In addition, no suitable design for fixing the broken ends of two blood vessels running at an angle other than 180 degrees exists at present.

Therefore, the existing blood vessel anastomosis fixator can not pull and fix two blood vessels under various running conditions more flexibly, more effectively, more safely and more conveniently.

Disclosure of Invention

In view of the above problems in the prior art, the present invention provides a multi-angle blood vessel anastomosis fixing device, which can continuously and stably pull and fix the blood vessel wall, can clearly expose the front and rear walls of the broken end of the blood vessel, has the function of opening the blood vessel lumen, has no damage to the blood vessel intima, and can fix at multiple angles, especially to the blood vessels running at different angles.

In order to solve the technical problems, the invention adopts the following technical scheme:

a multi-angle blood vessel anastomosis fixing device comprises a device main body, wherein the device main body is provided with a track, a first connecting rod and a second connecting rod are sequentially arranged on the track, and both the first connecting rod and the second connecting rod can slide back and forth on the track; the far end of the first connecting rod is hinged with a third connecting rod, and the far end of the second connecting rod is hinged with a fourth connecting rod; the far end of the third connecting rod is connected with the first vascular clamp through a universal joint, and the far end of the fourth connecting rod is connected with the second vascular clamp through a universal joint.

Preferably, grooves for placing suture support frames are formed in the clamp bodies of the first vascular clamp and the second vascular clamp, and the suture support frames are connected in the grooves through hinges.

Preferably, the rail is a linear groove formed in the device body, linear gear teeth are formed in the bottom of the linear groove, gears meshed with the gear teeth are mounted at the end portions of the first connecting rod and the second connecting rod through gear shafts, and two ends of each gear shaft are mounted in strip-shaped hollowed holes formed in the side walls of the linear groove.

Preferably, the multi-angle blood vessel anastomosis fixing device further comprises a knob arranged outside the device body, the knob is connected with one end of the gear shaft, and the knob is used for driving the gear to rotate so as to drive the connecting rod to move back and forth on the track.

Preferably, a fastening nut is arranged at a hinge joint of the distal end of the first connecting rod and the third connecting rod, and a fastening nut is arranged at a hinge joint of the distal end of the second connecting rod and the fourth connecting rod.

Preferably, the universal joint forms a tight fit connection between the distal end of the third link and the first vascular clamp, and the universal joint forms a tight fit connection between the distal end of the fourth link and the second vascular clamp.

Preferably, the distal end of the third link is detachably connected with the first vascular clamp through a universal joint, and the distal end of the fourth link is detachably connected with the second vascular clamp through a universal joint.

Preferably, the first vascular clamp is a vessel end vascular clamp or a vessel side wall vascular clamp, and the second vascular clamp is a vessel end vascular clamp or a vessel side wall vascular clamp.

Compared with the prior art, the multi-angle blood vessel anastomosis fixator provided by the invention has the beneficial effects that the blood vessel wall can be continuously and stably pulled and fixed through the blood vessel clamp which is arranged on the linear track and can slide back and forth, the front wall and the rear wall of the broken end of the blood vessel can be clearly exposed, the straight blood vessel clamp or the curved blood vessel clamp can be selected according to the condition of free blood vessels and the running angle of the blood vessels, the blood vessel clamp is provided with the support frame, the function of expanding the blood vessel cavity is realized, the intima of the blood vessel is not damaged, and the multi-angle fixation can be realized, particularly the pulling and the fixation of the blood vessels running at different angles can be realized.

Drawings

Fig. 1 is a front view of an embodiment of the present invention.

Fig. 2 is a schematic perspective exploded view of an embodiment of the present invention.

Fig. 3 is a side view of an embodiment of the present invention.

Fig. 4 is a perspective view of an intraoperative (end-to-end anastomosis) condition of an embodiment of the present invention.

FIG. 5 is a perspective view of another intraoperative condition (end-to-end anastomosis) of an embodiment of the present invention.

FIG. 6 is a schematic view of the connection of the support rod, the suture with the needle and the severed end of the blood vessel in an intraoperative state in accordance with an embodiment of the present invention.

Description of reference numerals:

1-device body 11-linear groove 12-gear 13-gear teeth 14-hollowed hole 15-gear shaft 21-first connecting rod 22-second connecting rod 31-third connecting rod 32-fourth connecting rod 4-knob 5-fastening nut 6-hinge 7-universal joint 81-first vascular clamp 82-second vascular clamp 83-support frame 84-suture with needle 100-vascular broken end 101-anterior wall 102-posterior wall 103-lateral wall.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially in general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

Referring to fig. 1 to 6, the present invention provides a multi-angle blood vessel anastomosis fixing device, including a device main body 1, wherein the device main body 1 is provided with a track, a first connecting rod 21 and a second connecting rod 22 are sequentially installed on the track, and both the first connecting rod 21 and the second connecting rod 22 can slide back and forth on the track; the distal end of the first connecting rod 21 is hinged with a third connecting rod 31, and the distal end of the second connecting rod 22 is hinged with a fourth connecting rod 32; the distal end of the third connecting rod 31 is connected with the first vascular clamp 81 through the universal joint 7, the distal end of the fourth connecting rod 32 is connected with the second vascular clamp 82 through the universal joint 7, specifically, the device body 1 can be in a cuboid shape or an arc shape to reduce edges and corners so as to relieve the oppression on tissues, a metal material can be adopted, the first connecting rod 21 is hinged with the third connecting rod 31, and the second connecting rod 22 is hinged with the fourth connecting rod 32 so as to enable the vascular clamps to fix blood vessels which are in different angle directions in an operation by forming various different angles according to requirements through the rotation of the connecting rods.

Specifically, referring to fig. 3, in this embodiment, the track is a linear groove 11 formed in the device body 1, linear gear teeth 13 are formed at the bottom of the linear groove 11, the end portions of the first link 21 and the second link 22 are both mounted on a gear 12 engaged with the gear teeth 13 through a gear shaft 15, and both ends of the gear shaft 15 are mounted in strip-shaped hollowed holes 14 formed in the side walls of the linear groove 11. Through the structure, the action of the first connecting rod 21 and the second connecting rod 22 on the track can be controlled accurately, so that the distance between the vascular clamps can be controlled, and better surgical effect can be achieved.

Specifically, the multi-angle blood vessel anastomosis fixing device further comprises a knob 4 arranged outside the device main body 1, wherein the knob 4 is connected with one end of a gear shaft 15 and used for driving the gear 12 to rotate so as to drive the connecting rod to move back and forth on the track.

Specifically, referring to fig. 3, a fastening nut 5 is disposed at a hinge joint between the distal end of the first link 21 and the third link 31, and a fastening nut 5 is disposed at a hinge joint between the distal end of the second link 22 and the fourth link 32. With this configuration, after the third link 31 and the fourth link 32 are rotated by a predetermined angle about the hinge shaft 6, the third link 31 and the fourth link 32 can be locked by the fastening nut 5, and the angular position of the third link 31 and the fourth link 32 can be maintained, thereby further stabilizing the anastomosis operation of the blood vessels.

Specifically, the universal joint 7 forms a tight fit connection between the distal end of the third link 31 and the first vascular clamp 81, and the universal joint 7 forms a tight fit connection between the distal end of the fourth link 32 and the second vascular clamp 82. The vascular clamp is connected with the connecting rod through the universal joint 7, so that the vascular clamp can be conveniently rotated to any proper angle when in use, the vascular broken ends 100 in any direction can be clamped, the two vascular broken ends 100 can be conveniently operated to be anastomotic, the front wall 101 or the rear wall 102 of the blood vessel can be conveniently exposed, the suture operation of a doctor can be conveniently carried out, and the vascular clamp can also adopt other structures which can realize the rotation at any angle besides the universal joint 7, such as flexible metal materials and the like.

Further, referring to fig. 4 to 6, grooves for placing suture support frames 83 are respectively arranged on the clip bodies of the first vascular clip 81 and the second vascular clip 82, the suture support frames 83 are connected with the grooves through hinges, the suture support frames 83 are used for placing and supporting sutures with needles 84, the blood vessel needles are respectively arranged at the two ends of the sutures with needles 84, wherein the surface of the support frame 83 is provided with threads, the front hinge tube wall is used, the support frame 83 is positioned in the groove of the vascular clip, when in use, the hinges are opened to enable the support frame 83 to stand up or be vertical to the vascular clip, the sutures can be hung on the support frame 83 to open empty vascular cavities, the number of the sutures is three in this embodiment, the three sutures 84 with needles are respectively sewed on the two side walls 103 and the front wall 101 of the blood vessel, then are hung on the support frame 83 to open the empty vascular cavities, so that the back wall 102 of the blood vessel is not sewed, moreover, the three sutures can be directly knotted at corresponding positions as reserved sutures, and redundant blood vessel damage can not be caused. Through the structure, when the vascular clamp is used for anastomosing two vascular broken ends 100, the suture can prop up the vascular broken ends 100 at two sides through the support frame 83, and the suture is more convenient for a doctor to suture.

Preferably, the distal end of the third link 31 is detachably connected to the first vascular clamp 81 through a universal joint 7, and the distal end of the fourth link 32 is detachably connected to the second vascular clamp 82 through a universal joint 7.

Further, in order to accommodate different surgical situations, such as an anastomosis of two vessels running at angles other than 180 °, the first vessel clamp 81 is a vessel end vessel clamp or a vessel side wall vessel clamp, and the second vessel clamp 82 is a vessel end vessel clamp or a vessel side wall vessel clamp. The vascular clamp at the end part of the blood vessel can directly clamp the end part of the broken end 100 of the blood vessel in a straight line direction, and is used for the situation that one broken end is separated by a certain length and two broken ends of the blood vessel to be anastomosed can be separated by enough length; the blood vessel side wall blood vessel clamp capable of walking in the arc shape is provided with a clamp body matched with the blood vessel side wall, the side wall of the blood vessel can be directly clamped, or the blood vessel side wall blood vessel clamp can be used for clamping the broken end of the free blood vessel broken end 100 when the broken end is short, and through the structure, the end part of the blood vessel in the straight line direction and the side wall of another blood vessel can be subjected to end-side anastomosis operation after being drawn together. By such a structure, the vascular clamp can be replaced properly according to different intraoperative conditions.

Specifically, the multi-angle blood vessel anastomosis fixing device of the invention is used as follows, referring to fig. 4 and 6, the blood vessel shape angles in the figure are basically consistent, therefore, two blood vessel broken ends 100 blood vessel clamps are selected, then the positions of the first connecting rod 21 and the second connecting rod 22 are adjusted, the angle between the first connecting rod 21 and the third connecting rod 31 is adjusted and then fixed, the angle between the second connecting rod 22 and the fourth connecting rod 32 is adjusted and then fixed, then the two broken ends of the blood vessel are clamped by the two blood vessel broken ends 100 blood vessel clamps and are pulled together and fixed in a corresponding state to be anastomosed, then the supporting frame 83 is opened, and the two side walls 103 and the front wall 101 of the two blood vessels are sutured and suspended by the suture thread 84 with the needle to open the empty blood vessel cavity. When the anterior wall 101 and the posterior wall 102 of the blood vessel are sutured, the universal joint 7 connected between the vascular clamp and the third connecting rod 31 or the fourth connecting rod 32 can be independently adjusted to enable the vascular clamp to rotate by an angle of about 30-45 degrees to expose the anterior wall 101 and the posterior wall 102 of the blood vessel, so that the anterior wall 101 and the posterior wall 102 of the blood vessel can be sutured more conveniently, and the situation that the anterior wall 101 of the blood vessel is sutured together with the posterior wall 102 of the blood vessel by mistake is not easy to occur.

In another embodiment of the intra-operative situation, referring to fig. 5 and 6, the blood vessel shape angles in the figure are not consistent, so a blood vessel broken end 100 blood vessel clamp is selected, a blood vessel side blood vessel clamp is selected, the broken end of the wall of one blood vessel is clamped and drawn by the blood vessel side blood vessel clamp, the broken end of the other blood vessel is clamped by the blood vessel broken end 100 blood vessel clamp and then rotated by a certain angle to form a state to be anastomosed with the broken end of the wall of the blood vessel, then the subsequent blood vessel suture operation is carried out by the support frame 83 and the suture thread with needle 84, when the front wall 101 and the back wall 102 of the blood vessel need to be exposed, the rotation direction of the blood vessel clamp is adjusted by the universal joint 7, and then the suture is carried out, it is noted that when the front wall 101 and the two side walls 103 of the blood vessel are propped up by the suture thread with needle 84, the back wall 102 of the blood vessel does not need to be propped, the arrangement is more reasonable and is very suitable for the actual operation of the operation.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.