CN114145799A - Vascular occlusion anastomosis device - Google Patents

Abstract

The invention provides a blood vessel blocking anastomosis device, and relates to the technical field of medical instruments. A blood vessel blocking anastomosis device comprises a blocking forceps body and an auxiliary anastomosis component arranged on the blocking forceps body; the blocking forceps body comprises two forceps arms, one end of each forceps arm is connected with a handle, the other end of each forceps arm is connected with a blocking block, the two forceps arms are connected at positions close to the handles through hinges, and connecting shafts are arranged above the hinges; the auxiliary anastomosis assembly comprises a pair of anastomosis forceps and a pair of anastomosis rings installed in the pair of anastomosis forceps, the anastomosis forceps comprise a connecting buckle, a threaded telescopic rod and a forceps clip, and the connecting buckle is movably connected with the connecting shaft; one end of the threaded telescopic rod is connected with the connecting buckle, and the other end of the threaded telescopic rod is connected with the forceps holder; according to the invention, the blocking forceps body and the auxiliary anastomosis component are arranged into an integral structure, so that the blood vessel anastomosis can be immediately carried out after the blood vessel blood flow is blocked, an assistant does not need to hold a plurality of instruments for a long time, the time cost is saved, the uneven force caused by long-time pulling is avoided, and the risk of blood vessel anastomosis is reduced.

Description

Vascular occlusion anastomosis device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a blood vessel blocking anastomosis device.

Background

Organ transplantation is a complicated operation of transplanting a healthy organ of a person into a patient in order to replace the organ of the patient that has lost function due to disease. With the continuous improvement of organ transplantation operation technology and perioperative treatment level, the survival rate and the quality of life of organ transplantation patients are remarkably improved, and the organ transplantation technology becomes a recognized effective means for treating various end-stage organ diseases.

The manual operation anastomosis blood vessel operation has high difficulty, high manpower cost such as training and the like, long time for anastomosis, weak anastomosis and the like, and the blood vessel anastomat can solve the problems; the current blood vessel anastomat generally occupies a large space, which is inconvenient when blood vessels of some special parts are anastomosed (such as when liver transplantation blood vessels are anastomosed). The existing blood vessel anastomat has low utilization degree of the broken ends of blood vessels, the anastomosis of the end ends of the blood vessels in the operation needs to use blood vessel blocking forceps on the blood vessels on two sides respectively to block the blood flow, then the position and the distance of the longitudinal axis of the blood vessels on the two sides are fixed manually by an assistant, the anastomosis can be performed after the anastomosis is good, the operations need to be completed by the assistant holding the two blood vessel blocking forceps for a long time, the required time is long, the operation is inconvenient, and particularly in the anastomosis of the blood vessels with high tension, the force of the assistant is uneven due to long-time traction, the anastomosis failure is caused, or the anastomosis blood vessels are twisted and narrowed, and the unsmooth blood flow can be caused finally. And the blocking forceps and the anastomat need to occupy a long section of the broken end of the blood vessel together, and the blood vessel anastomats can not be used when the length of the broken end of the blood vessel needing to be anastomosed is insufficient.

Such as: in the liver transplantation operation, the most difficult and most technically demanding part of new liver implantation after hepatectomy is the anastomosis reconstruction of the superior vena cava and the inferior vena cava of the liver of a receptor in a classical operation mode, and has decisive significance for the success rate of the operation and the postoperative recovery. Because the receptor end of the hepatic superior and inferior vena cava is difficult to be left long and easy to retract, the calibers are different from 1 cm to 3cm, and the anastomosis of the existing instruments cannot be implemented. At present, the universal method in the world is still manual continuous eversion suture, due to the narrow space, the deep position, the difficult operation, the time and labor consumption, and the average time of 35 to 45 minutes, the liver-free period in the operation is long, the influence on important organs such as heart, lung and kidney is large, the quality control is influenced by the technique of an operator, the postoperative bleeding and postoperative anastomotic stenosis and other complications are easy to occur, and the method is the most critical part in the difficulty of the liver transplantation operation. The design can further reduce the occupied space, and the blocking forceps and the blood vessel anastomat are designed together, so that the problems can be effectively solved.

Therefore, in order to overcome the defects in the prior art, it is necessary to provide a vascular occlusion anastomosis device which has a simple structure, a high anastomosis degree and high practicability.

Disclosure of Invention

The invention aims to provide a blood vessel blocking anastomosis device, which can provide a solution for the defects of difficult operation, blood vessel distortion, stenosis or unsmooth blood flow and the like of the blood vessel anastomosis device in the prior art, and has the characteristics of simple structure, high anastomosis degree, strong practicability and the like.

The embodiment of the invention is realized by the following steps:

a blood vessel blocking anastomosis device comprises a blocking forceps body and an auxiliary anastomosis component arranged on the blocking forceps body; the blocking forceps comprise a blocking forceps body and a blocking forceps body, wherein the blocking forceps body comprises two forceps arms, one end of each forceps arm is connected with a handle, the other end of each forceps arm is connected with a blocking block, the two forceps arms are connected close to the handles through hinges, and a connecting shaft is arranged above the hinges; when the blood vessel repair device is used, a doctor holds the handle, places the blocking block at the bleeding part of the blood vessel, and temporarily clamps the bleeding blood vessel so as to perform subsequent blood vessel repair;

the auxiliary anastomosis assembly comprises a pair of anastomosis forceps and a pair of anastomosis rings installed in the pair of anastomosis forceps, the anastomosis forceps comprise a connecting buckle, a threaded telescopic rod and a forceps clip, and the connecting buckle is movably connected with the connecting shaft; one end of the threaded telescopic rod is connected with the connecting buckle, and the other end of the threaded telescopic rod is connected with the forceps clip; the anastomosis ring is disposed within the jaw pair. The connecting buckle is movably connected with the connecting shaft, so that the anastomosis forceps can rotate freely, when the blocking forceps are used, the anastomosis forceps are rotated to one side, the operation of the blocking forceps is not influenced, and after the blocking forceps block blood flow, the anastomosis forceps are rotated to the blood vessel blocking position for anastomosis; the threaded telescopic rod is used for adjusting the length of the anastomosis forceps, when the anastomosis forceps are used, the anastomosis part of the anastomosis forceps can extend to a blood vessel blocking part, and when the anastomosis forceps are not used, the anastomosis forceps can be contracted to the shortest length, so that the use of the blocking forceps body is prevented from being influenced; when the device is used, the blocking forceps body is placed at a blood vessel cut-off position to block blood flow, the length of the forceps holder is adjusted through the threaded telescopic rod to enable the forceps holder to rotate to the blood vessel cut-off position, one of the anastomosis forceps is rotated to a first cut-off end of the blood vessel, penetrates through the blood vessel and turns the blood vessel outwards, the other anastomosis forceps is rotated to a second cut-off end of the blood vessel, penetrates through the blood vessel and turns the blood vessel outwards, the two anastomosis forceps are pressed, the blocking forceps body and the anastomosis forceps are removed after a pair of anastomosis rings are anastomosed, and the anastomosis of the blood vessel is completed.

In some embodiments of the present invention, the forceps holder includes a first arm and a second arm, one end of the first arm and one end of the second arm are connected to one end of the threaded telescopic rod, the other end of the first arm is provided with a first blade, the other end of the second arm is provided with a second blade, and the first blade and the second blade correspond to each other up and down and are matched with the anastomosis ring in size; before the vascular occlusion anastomosis is carried out, the first clamping arm and the second clamping arm are pulled apart, and the anastomosis ring is respectively arranged between the first clamp piece and the second clamp piece.

In some embodiments of the present invention, the inner side wall of the first clip is provided with a groove, and the outer side wall of the anastomosis ring is provided with a protrusion which is engaged with the groove; pull open first arm lock with behind the second arm lock, will the arch of anastomosing ring corresponds the recess of first tong slice is packed into it closes to coincide ring withdrawal power first arm lock with the second arm lock, the arch of anastomosing ring with the recess is anastomosed, is convenient for press from both sides tightly through the arch the anastomosing ring prevents to press from both sides askewly, aligns when being favorable to follow-up anastomosing, and can avoid rotating blood vessel angle when coinciding, leads to the blood vessel distortion.

In some embodiments of the present invention, a spring is disposed between the first clamping arm and the second clamping arm; the spring enables the first clamping arm and the second clamping arm to be tightened in a natural state, and when the anastomosis ring is installed in the spring, the anastomosis ring is enabled to be kept stable on the anastomosis forceps and is not easy to fall off to influence the operation.

In some embodiments of the present invention, the connection portion of the spring and the first clamping arm and the connection portion of the spring and the second clamping arm respectively protrude outward to form corresponding protruding portions, when the length of the spring is longer, a larger elastic force is generated to affect the tightening of the first clamping arm and the second clamping arm, and the protruding portions are arranged to eliminate the effect of the length of the spring.

In some embodiments of the present invention, the two connecting buckles of the pair of anastomosis forceps are hinged and sleeved on the connecting shaft, the connecting buckles are connected in a hinged manner, and the two anastomosis forceps can rotate freely.

In some embodiments of the present invention, the connecting shaft is provided with a thread and a nut for fixing the connecting buckle, and the nut is adapted to the thread. On one hand, after the connecting buckle is sleeved on the connecting shaft, the screw cap is screwed down, the connecting buckle can be fixed, and before the blood vessel is anastomosed, when the occlusion forceps body is used, the phenomenon that the blood vessel occlusion is influenced by the rotation of the anastomosis forceps around is avoided; on the other hand, the anastomosis forceps can be replaced by adopting a threaded connection mode, and the anastomosis forceps and the anastomosis ring with the size suitable for the blood vessel can be flexibly selected.

In some embodiments of the present invention, a plurality of anastomosis needles and anastomosis holes are disposed on two anastomosis surfaces of the pair of anastomosis rings, wherein the anastomosis needles correspond to the anastomosis holes one to one; the anastomosis rings can be tightly anastomosed, so that the two anastomosis rings are prevented from being dislocated in the operation process, and the blood vessel is prevented from being distorted or anastomosed unsuccessfully.

In some embodiments of the present invention, the above-mentioned anastomosis needle is conical, or the anastomosis needle is conical, and the top of the anastomosis needle is provided with a barb portion; the diameter of the needle point of the conical anastomosis needle is smaller, so that the conical anastomosis needle can be conveniently inserted into the corresponding anastomosis hole; the top of the anastomosis needle is provided with a barb part, which is convenient for further fixation after anastomosis.

In some embodiments of the present invention, the anastomosis needle is made of stainless steel or plastic.

Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:

the invention has simple structure, high vascular anastomosis degree and strong practicability; the blocking forceps comprise a blocking forceps body and an auxiliary anastomosis component arranged on the blocking forceps body; the blocking forceps comprise a blocking forceps body and a blocking forceps body, wherein the blocking forceps body comprises two forceps arms, one end of each forceps arm is connected with a handle, the other end of each forceps arm is connected with a blocking block, the two forceps arms are connected close to the handles through hinges, and a connecting shaft is arranged above the hinges; the auxiliary anastomosis assembly comprises a pair of anastomosis forceps and a pair of anastomosis rings installed in the pair of anastomosis forceps, the anastomosis forceps comprise a connecting buckle, a threaded telescopic rod and a forceps clip, and the connecting buckle is movably connected with the connecting shaft; one end of the threaded telescopic rod is connected with the connecting buckle, and the other end of the threaded telescopic rod is connected with the forceps clip; the anastomosis ring is disposed within the jaw pair. When the device is used, the blocking forceps body is placed at a disconnected part of a blood vessel to block blood flow, the length of the forceps jaws is adjusted through the threaded telescopic rod to enable the forceps jaws to rotate to the disconnected part of the blood vessel, one of the anastomosis forceps is rotated to a first disconnected end of the blood vessel, the blood vessel is penetrated through the blood vessel and turned outwards, the other anastomosis forceps is rotated to a second disconnected end of the blood vessel, the blood vessel is penetrated through the blood vessel and turned outwards, the two anastomosis forceps are pressed, and after a pair of anastomosis rings are anastomosed, the blocking forceps body and the anastomosis forceps are removed to complete anastomosis of the blood vessel; the connecting buckle is movably connected with the connecting shaft, so that the anastomosis forceps can rotate freely, when the blocking forceps body is used, the anastomosis forceps rotate to one side, the operation of the blocking forceps body is not influenced, and after the blocking forceps body blocks blood flow, the anastomosis forceps are rotated to the blood vessel blocking position for anastomosis; the threaded telescopic rod is used for adjusting the length of the anastomosis forceps, when the anastomosis forceps are used, the anastomosis part of the anastomosis forceps can extend to a blood vessel blocking part, and when the anastomosis forceps are not used, the anastomosis forceps can be contracted to the shortest length, so that the use of the blocking forceps body is prevented from being influenced; according to the invention, the blocking forceps body and the auxiliary anastomosis assembly are arranged into an integral structure, so that subsequent vascular anastomosis operation can be immediately carried out after vascular blood flow is blocked, various surgical instruments are not required, an assistant is not required to hold a plurality of instruments for a long time, the time cost is saved, the anastomosis failure caused by uneven force due to long-time pulling is avoided, the operation steps are simplified, and the risk of vascular anastomosis is reduced. Compared with other common vascular anastomats, the anastomosis device shortens the distance between the blocking forceps and the vascular anastomosis device, reduces the occupied space, can reduce the requirement on the length of the broken end of the blood vessel during vascular anastomosis by using the vascular anastomat during operation, reduces the loss of the broken end of the blood vessel during anastomosis, and improves the anastomosis result.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic perspective view of a vascular occlusion anastomosis device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an anastomosis-assist assembly in accordance with an embodiment of the present invention;

figure 3 illustrates a structural view of an anastomosis ring in accordance with an embodiment of the present invention;

fig. 4 is a schematic structural view of the anastomosis needle according to the embodiment of the present invention.

Reference numerals: 1. blocking the forceps body; 2. a clamp arm; 3. a handle; 4. a blocking block; 5. a connecting shaft; 6. anastomosis forceps; 7. anastomosing the ring; 8. a connecting buckle; 9. a threaded telescopic rod; 10. clamping jaws; 11. a first clamp piece; 12. a second clamp piece; 13. a groove; 14. a protrusion; 15 springs; 16. a nut; 17. an anastomosis needle; 18. fitting the holes; 19. and (4) chamfering the hook part.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" represents at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, 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. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

Referring to fig. 1 to 4, fig. 1 is a schematic perspective view illustrating a blood vessel occlusion anastomosis device according to an embodiment of the present invention, fig. 2 is a sectional view illustrating an auxiliary anastomosis component according to an embodiment of the present invention, fig. 3 is a schematic structural view illustrating an anastomosis ring according to an embodiment of the present invention, and fig. 4 is a schematic structural view illustrating an anastomosis needle according to an embodiment of the present invention, in an embodiment of the present invention, a blood vessel occlusion anastomosis device specifically includes: the blocking forceps comprise a blocking forceps body 1 and an auxiliary anastomosis component arranged on the blocking forceps body 1; the blocking forceps body 1 comprises two forceps arms 2, one end of each forceps arm 2 is connected with a handle 3, the other end of each forceps arm 2 is connected with a blocking block 4, the two forceps arms 2 are connected at positions close to the handles 3 through hinges, and a connecting shaft 5 is arranged above the hinges; when in use, a doctor holds the handle 3, places the blocking block 4 at the bleeding part of the blood vessel, and temporarily clamps the bleeding blood vessel so as to carry out subsequent blood vessel repair; the blocking block 4 may be a strip shape, and can block blood flow of blood vessels of various sizes to clamp the blood flow of the blood vessels.

The auxiliary anastomosis assembly comprises a pair of anastomosis forceps 6 and a pair of anastomosis rings 7 arranged in the pair of anastomosis forceps 6, the anastomosis forceps 6 comprise a connecting buckle 8, a threaded telescopic rod 9 and a forceps holder 10, and the connecting buckle 8 is movably connected with the connecting shaft 5; one end of the threaded telescopic rod 9 is connected with the connecting buckle 8, and the other end is connected with the forceps holder 10; the connecting buckle 8 is movably connected with the connecting shaft 5, so that the anastomosis forceps 6 can freely rotate, when the blocking forceps are used, the anastomosis forceps 6 rotate to one side, the operation of the blocking forceps is not influenced, and after the blocking forceps block blood flow, the anastomosis forceps 6 rotate to the blood vessel blocking position for anastomosis; the threaded telescopic rod 9 is used for adjusting the length of the anastomosis forceps 6, when the anastomosis forceps 6 are used, the anastomosis part of the anastomosis forceps 6 can extend to the blood vessel blocking part, and when the anastomosis forceps 6 are not used, the anastomosis forceps 6 can be contracted to the shortest length, so that the use of the blocking forceps body 1 is prevented from being influenced; when the device is used, the blocking forceps body 1 is placed at a blood vessel cut-off position to block blood flow, the length of the forceps holder 10 is adjusted through the threaded telescopic rod 9 to enable the forceps holder to rotate to the blood vessel cut-off position, one anastomosis forceps 6 is rotated to a first cut-off end of the blood vessel, penetrates through the blood vessel and turns the blood vessel outwards, the other anastomosis forceps 6 is rotated to a second cut-off end of the blood vessel, penetrates through the blood vessel and turns the blood vessel outwards, the two anastomosis forceps 6 are pressed, the blocking forceps body 1 and the anastomosis forceps 6 are removed after a pair of anastomosis rings 7 are anastomosed, and the blood vessel anastomosis is completed. Wherein, two connecting buckles 8 of the pair of anastomosis forceps 6 are hinged and sleeved on the connecting shaft 5, the connecting buckles 8 are connected in a hinged mode, and the two anastomosis forceps 6 can rotate freely.

Furthermore, the connecting shaft 5 is provided with a thread and a nut 16 for fixing the connecting buckle 8, and the nut 16 is matched with the thread. On one hand, after the connecting buckle 8 is sleeved on the connecting shaft 5, the screw cap 16 is screwed down, the connecting buckle 8 can be fixed, and before the blood vessel is anastomosed, when the occlusion forceps body 1 is used, the phenomenon that the blood vessel occlusion is affected by the rotation of the anastomosis forceps 6 at four positions is avoided; on the other hand, the anastomosis forceps 6 can be replaced by adopting a threaded connection mode, and the anastomosis forceps 6 and the anastomosis ring 7 with proper blood vessel sizes can be flexibly selected.

It should be noted that the threaded telescopic rod 9 is provided with a scale, and when the anastomosis forceps 6 are extended or retracted, the scale can be extended or retracted correspondingly, and when one anastomosis forceps 6 is extended to a required length, the scale can be extended correspondingly to the other anastomosis forceps 6, so that the phenomenon that the two anastomosis forceps 6 are not consistent in extension length, which causes blood vessel anastomosis distortion or anastomosis failure is avoided.

In an embodiment of this embodiment, the forceps holder 10 includes a first arm and a second arm, one end of the first arm and one end of the second arm are connected to one end of the threaded telescopic rod 9, the other end of the first arm is provided with a first blade 11, the other end of the second arm is provided with a second blade 12, and the first blade 11 and the second blade 12 correspond to each other up and down and are adapted to the size of the anastomosis ring 7; before the vascular occlusion anastomosis is performed, the first and second clip arms are pulled apart, and the anastomosis ring 7 is respectively inserted between the first and second jaws 11, 12.

Furthermore, the inner side wall of the first clamp piece 11 is provided with a groove 13, and the outer side wall of the anastomosis ring 7 is provided with a bulge 14 anastomotic with the groove 13; after the first clamping arm and the second clamping arm are pulled open, the bulge 14 of the anastomosis ring 7 corresponds to the groove 13 of the first clamp piece 11, the anastomosis ring 7 is loaded into the groove to close the first clamping arm and the second clamping arm by withdrawing force, the bulge 14 of the anastomosis ring 7 is anastomosed with the groove 13, the anastomosis ring 7 is convenient to clamp through the bulge 14, askew clamping is prevented, alignment is facilitated during subsequent anastomosis, and the blood vessel angle can be prevented from rotating during anastomosis, so that blood vessel distortion is caused.

It should be noted that the two anastomosis forceps 6 have the same length and size, and correspond to each other at any position, the two anastomosis forceps 6 can be attached to each other, and when they are attached to each other, the grooves 13 on the first forceps piece 11 are completely overlapped, so that the relative positions of the pair of anastomosis rings 7 clamped by the two anastomosis forceps 6 are fixed, thereby enabling the anastomosis needles 17 and the anastomosis holes 18 to correspond to each other one by one, and avoiding the distortion of the blood vessel during anastomosis.

In an embodiment as one of the embodiments, a spring 15 is disposed between the first clamping arm and the second clamping arm; the spring 15 tightens the first clamping arm and the second clamping arm in a natural state, and when the anastomosis ring 7 is loaded into the spring, the anastomosis ring 7 is kept stable on the anastomosis forceps 6 and is not easy to fall off to influence the operation.

Further, spring 15 forms corresponding bellying with the junction of first arm lock and second arm lock protrusion to the outside respectively, can produce great elasticity when spring 15 length is longer, influences first arm lock and the tightening up of second arm lock, sets up the influence that the bellying can eliminate spring 15 length.

In an embodiment as an embodiment of the present invention, a plurality of corresponding anastomosis needles 17 and anastomosis holes 18 are provided on two anastomosis surfaces of the pair of anastomosis rings 7, wherein the anastomosis needles 17 correspond to the anastomosis holes 18 one by one; the anastomosis rings 7 can be tightly anastomosed, and the phenomenon that the two anastomosis rings 7 are dislocated in the operation process to cause the distortion of blood vessels or the failure of anastomosis is avoided.

It should be noted that the above-mentioned anastomosis needle 17 is conical, or the anastomosis needle 17 is conical, and the top of the anastomosis needle 17 is provided with a barb portion 19; the diameter of the needle point of the conical anastomosis needle 17 is smaller, so that the conical anastomosis needle can be conveniently inserted into the corresponding anastomosis hole 18; the top of the anastomotic needle 17 is provided with a barb part 19 for further fixation after anastomosis.

In one embodiment of this embodiment, the anastomosis needle 17 is made of stainless steel or plastic; preferably, the anastomosis needle 17 is made of plastic, and when the anastomosis needle 17 is made of plastic, the anastomosis needle 17 may have elasticity, and when the top of the anastomosis needle 17 has the barb portion 19, the anastomosis needle 17 is inserted into the anastomosis hole 18, and the anastomosis needle 17 is not easy to slip out of the anastomosis hole 18, so as to facilitate further fixation after anastomosis.

The working principle and the beneficial effects of the invention are as follows:

the invention is characterized in that the blocking forceps comprise a blocking forceps body 1 and an auxiliary anastomosis component arranged on the blocking forceps body 1; the blocking forceps body 1 comprises two forceps arms 2, one end of each forceps arm 2 is connected with a handle 3, the other end of each forceps arm 2 is connected with a blocking block 4, the two forceps arms 2 are connected at positions close to the handles 3 through hinges, and a connecting shaft 5 is arranged above the hinges; the auxiliary anastomosis assembly comprises a pair of anastomosis forceps 6 and a pair of anastomosis rings 7 arranged in the pair of anastomosis forceps 6, the anastomosis forceps 6 comprise a connecting buckle 8, a threaded telescopic rod 9 and a forceps holder 10, and the connecting buckle 8 is movably connected with the connecting shaft 5; one end of the threaded telescopic rod 9 is connected with the connecting buckle 8, and the other end is connected with the forceps holder 10; the anastomosis ring is disposed within the jaw pair. When the device is used, the blocking forceps body 1 is placed at a blood vessel cut-off position to block blood flow, the length of the forceps holder 10 is adjusted through the threaded telescopic rod 9 to enable the forceps holder to rotate to the blood vessel cut-off position, one anastomosis forceps 6 is rotated to a first cut-off end of the blood vessel, penetrates through the blood vessel and turns the blood vessel outwards, the other anastomosis forceps 6 is rotated to a second cut-off end of the blood vessel, penetrates through the blood vessel and turns the blood vessel outwards, the two anastomosis forceps 6 are pressed, and the blocking forceps body 1 and the anastomosis forceps 6 are removed after a pair of anastomosis rings 7 are anastomosed to complete blood vessel anastomosis; the connecting buckle 8 is movably connected with the connecting shaft 5, so that the anastomosis forceps 6 can freely rotate, when the blocking forceps are used, the anastomosis forceps 6 rotate to one side, the operation of the blocking forceps is not influenced, and after the blocking forceps block blood flow, the anastomosis forceps 6 rotate to the blood vessel blocking position for anastomosis; the threaded telescopic rod 9 is used for adjusting the length of the anastomosis forceps 6, when the anastomosis forceps 6 are used, the anastomosis part of the anastomosis forceps 6 can extend to the blood vessel blocking part, and when the anastomosis forceps 6 are not used, the anastomosis forceps 6 can be contracted to the shortest length, so that the use of the blocking forceps body 1 is prevented from being influenced; according to the invention, the blocking forceps body 1 and the auxiliary anastomosis assembly are arranged into an integral structure, so that subsequent vascular anastomosis operation can be immediately carried out after vascular blood flow is blocked, various surgical instruments are not required, an assistant is not required to hold a plurality of instruments for a long time, the time cost is saved, anastomosis failure caused by uneven force due to long-time pulling is avoided, the operation steps are simplified, and the risk of vascular anastomosis is reduced. Compared with other common vascular anastomats, the anastomosis device shortens the distance between the blocking forceps and the vascular anastomosis device, reduces the occupied space, can reduce the requirement on the length of the broken end of the blood vessel during vascular anastomosis by using the vascular anastomat during operation, reduces the loss of the broken end of the blood vessel during anastomosis, and improves the anastomosis result.

As an example, the medical staff installs the auxiliary anastomosis assembly on the occlusion forceps body 1, and adjusts the length of the anastomosis forceps 6 so that the anastomosis forceps can rotate to the blood vessel occlusion part of the occlusion forceps body 1; a group of anastomosis rings 7 with proper sizes are selected according to the actual condition of the blood vessel (whether the anastomosis rings 7 can be just anastomosed is tested in advance), the positions of the anastomosis rings are determined by the convex parts on the anastomosis rings 7 corresponding to the grooves 13 of the first forceps pieces 11, and the anastomosis rings are arranged in the anastomosis forceps 6, so that the anastomosis rings 7 can be aligned with pinholes, and the blood vessel distortion is avoided; the blocking block 4 of the blocking forceps body 1 is placed at a blood vessel cut-off position to clamp a blood vessel, after the blocking forceps body 1 blocks blood flow, the first anastomosis forceps 6 is rotated to the blood vessel cut-off end and is close to the blood flow cut-off position, the hollow part of the anastomosis ring 7 passes through the blood vessel cut-off end and turns the blood vessel outwards, the second anastomosis forceps 6 is rotated to the position close to the first anastomosis forceps 6, a venous blood vessel passes through the second anastomosis forceps 6 and turns the venous blood vessel outwards, the second anastomosis forceps 6 tightly press the first anastomosis forceps 6 to enable the two anastomosis rings 7 to be anastomosed, the blocking forceps body 1 and the two anastomosis forceps 6 are removed to ensure that the anastomosis rings 7 are tightly anastomosed and cannot leak blood, finally, the screw cap 16 is unscrewed, and the auxiliary anastomosis component is detached.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A blood vessel blocking anastomosis device is characterized by comprising a blocking forceps body and an auxiliary anastomosis component arranged on the blocking forceps body;

the blocking forceps comprise a blocking forceps body and a blocking forceps body, wherein the blocking forceps body comprises two forceps arms, one end of each forceps arm is connected with a handle, the other end of each forceps arm is connected with a blocking block, the two forceps arms are connected close to the handles through hinges, and a connecting shaft is arranged above the hinges;

the auxiliary anastomosis assembly comprises a pair of anastomosis forceps and a pair of anastomosis rings installed in the pair of anastomosis forceps, the anastomosis forceps comprise a connecting buckle, a threaded telescopic rod and a forceps clip, and the connecting buckle is movably connected with the connecting shaft; one end of the threaded telescopic rod is connected with the connecting buckle, and the other end of the threaded telescopic rod is connected with the forceps clip; the anastomosis ring is disposed within the jaw pair.

When the device is used, the blocking forceps body is placed at a blood vessel cut-off position to block blood flow, the length of the forceps holder is adjusted through the threaded telescopic rod to enable the forceps holder to rotate to the blood vessel cut-off position, one of the anastomosis forceps is rotated to a first cut-off end of the blood vessel, penetrates through the blood vessel and turns the blood vessel outwards, the other anastomosis forceps is rotated to a second cut-off end of the blood vessel, penetrates through the blood vessel and turns the blood vessel outwards, the two anastomosis forceps are pressed, the blocking forceps body and the anastomosis forceps are removed after a pair of anastomosis rings are anastomosed, and the anastomosis of the blood vessel is completed.

2. The vascular occlusion anastomosis device according to claim 1, wherein the jaws comprise a first clamping arm and a second clamping arm, one end of the first clamping arm and one end of the second clamping arm are connected to one end of the threaded telescopic rod, the other end of the first clamping arm is provided with a first jaw piece, the other end of the second clamping arm is provided with a second jaw piece, and the first jaw piece and the second jaw piece are vertically corresponding to each other and are matched with the anastomosis ring in size.

3. The vascular occlusion anastomosis device of claim 2, wherein said first jaw member has a recess formed in an inner sidewall thereof, and said anastomosis ring has a projection formed on an outer sidewall thereof for engaging with said recess.

4. The vaso-occlusive anastomosis device of claim 3, wherein a spring is disposed between said first and second clamp arms.

5. The vascular occlusion anastomosis device of claim 4, wherein the spring projects outwardly at the junction of the first and second clip arms, respectively, to form corresponding projections.

6. The vascular occlusion anastomosis device according to claim 1, wherein two connecting buckles of a pair of said anastomosis forceps are hinged and sleeved on said connecting shaft.

7. The vessel occlusion anastomosis device according to claim 6, wherein said connection shaft is provided with a thread and a nut for fixing said connection fastener, said nut being adapted to said thread.

8. The vascular occlusion anastomosis device according to claim 1, wherein a plurality of corresponding anastomosis needles and anastomosis holes are provided on two anastomosis surfaces of a pair of said anastomosis rings, wherein said anastomosis needles correspond to said anastomosis holes one to one.

9. The vaso-occlusive anastomosis device according to claim 8, wherein said anastomosis needle is conical;

or the anastomosis needle is conical, and the top of the anastomosis needle is provided with a barb part.

10. The vaso-occlusive anastomosis device according to claim 9, wherein said anastomosis needle is of stainless steel or plastic material.

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