CN216021218U - Blood vessel anastomosis clamp and adhesion piece thereof - Google Patents

Abstract

A blood vessel anastomosis clamp and a bonding sheet thereof comprise an elastic connecting piece, a bonding sheet, a pipe clamp and a clamping part; the utility model connects the inlet end of the pipe clamp in the anastomat with the outlet end of the medical negative pressure suction device, then arranges two large and small blood vessel adhesion sheets for blood vessel adhesion in the groove at the far end, and closes the blood vessel to be anastomosed, so that the far end mouths of the pipe clamps at the two sides are close to each other, and the two adhesion sheets are enclosed, thereby realizing the adhesion anastomosis of the two disconnected blood vessels.

Description

Blood vessel anastomosis clamp and adhesion piece thereof

Technical Field

The utility model belongs to the technical field of medical equipment, and particularly relates to a vascular anastomosis clamp and an adhesion sheet thereof.

Background

The key of microsurgery lies in the quality of vascular anastomosis, and the existing vascular anastomosis method mainly comprises vascular suture anastomosis, a vascular anastomat method, a vascular adhesive method and laser vascular anastomosis; the vascular anastomat method comprises a magnetic tube method, an anastomosis clamp method and a needle ring method.

The magnetic tube method is characterized in that a pair of specially designed magnetic rings are utilized to enable the broken ends of blood vessels to be attracted together, so that the purpose of blood vessel anastomosis is achieved;

the anastomosis principle of the blood vessel anastomosis clamp is that the anastomosis clamp enables the cut ends of the blood vessels which are turned outwards to be tightly attached together through mechanical force without piercing the blood vessel wall, so that the inner membrane of the blood vessel is smoother, but the turning outwards and the alignment operation of the cut ends of the blood vessels need additional instrument assistance, the operation is not simple and convenient enough, and the auxiliary anastomosis instrument has a complex structure and cannot be reused; the clamping force is difficult to control, the danger of fistula and even cracking is caused when the clamping force is light, and the stenosis of the lumen is possibly caused when the clamping force is heavy; VCS, which is a non-absorbent material, can cause the blood vessels to lose growth and contraction functions, and therefore cannot be used for children;

the needle ring method is characterized by that on the anastomosis ring (also called anastomosis wheel) several fine needles and small holes are uniformly arranged in a ring form, and are cross-arranged into one circle, before anastomosis the broken ends of blood vessel are respectively outwards-turned and hung on two anastomosis rings, then the anastomosis rings are jogged and closed. The current anastomat principle applied in clinic belongs to a needle ring method; however, the blood vessel accompanied with atherosclerosis is easy to tear, and the needle ring method is not suitable to be applied;

in the blood vessel adhesive method, because the blood vessels to be anastomosed are all in a collapsed state, in order to avoid intravascular stenosis and even adhesion occlusion caused by using an adhesive, a blood vessel stent is required to be used when the blood vessels are anastomosed by the medical adhesive method, and then the blood vessels are connected by smearing an adhesive, but the penetration of the adhesive easily causes thrombosis in the use process; the compound type is represented by albumin-glutaraldehyde glue, and has obvious cytotoxicity, potential infection risk and tissue fibrosis risk.

The manual suture is still used as the main part in clinical vascular anastomosis, and the suture method in clinical operation is the basic method of small vascular anastomosis at present; however, the suture is often exposed in the vascular cavity by the method, so that the vessel wall is easy to shrink, and the stenosis of the vessel, the blood flow obstruction and the intimal thickening of the vessel are caused mutually; the reduction of the blood vessel cavity with small caliber can cause the blockage of blood flow to a greater extent, and in addition, the suturing time is long, and the operation is difficult when the vaginal surface of the blood vessel wall is anastomosed; meanwhile, the existing anastomat is high in manufacturing cost and complex in structure, so that the suturing operation process of the blood vessel is complex, and the requirement of the blood vessel suturing operation on operators is high.

Disclosure of Invention

In order to make up for the defects of the prior art, the utility model provides a vascular anastomosis clamp and an adhesion sheet thereof. The utility model is mainly used for solving the problems of complex structure and high cost of the existing anastomat and the problems of complex operation, high operation difficulty and high requirement on operators of the existing anastomat.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a blood vessel anastomosis clamp and a bonding sheet thereof comprise an elastic connecting piece, a bonding sheet and a pipe clamp; the pipe clamps are symmetrically arranged on two sides of the elastic connecting piece; the pipe clamp is fixedly connected with the elastic connecting piece; one pipe clamp distal end opening is provided with a first groove; a second groove is formed in the other pipe clamp far-end opening; the first groove and the second groove are arc-shaped structures; the radian of the first groove is greater than that of the second groove; the radius of the first groove is the same as that of the second groove; the sum of radians of the first groove and the second groove is a circumference; a clamping component is arranged on the side of the far end of the pipe clamp; the clamping component is connected with the pipe clamp; the inlet end of the pipe clamp far away is communicated with an external medical negative pressure suction device; the adhesion sheet is of an arc-shaped structure and is used for adhering, fixing and supporting a blood vessel; through holes are uniformly arranged on the adhesive sheet at intervals; the adhesive sheet is connected with a silk thread; the silk thread is fixedly connected with the adhesion sheet.

When the anastomat works, because the existing anastomat is high in manufacturing cost and complex in structure, the suturing operation process of the blood vessel is further complex, the requirement of the blood vessel suturing operation on operators is high, when the anastomosis clamp provided by the scheme is used for performing the blood vessel anastomosis, the inlet end of the pipe clamp in the anastomat is firstly communicated with the outlet end of the medical negative pressure suction device, and then the inside of the pipe clamp can be in a negative pressure state through the medical negative pressure device in the process of performing the blood vessel anastomosis, because the first groove and the second groove are respectively arranged at one end part of the pipe clamp, before the anastomosis is performed, the adhesion pieces for adhering the blood vessel are arranged in the first groove and the second groove (the adopted adhesion pieces are matched with the corresponding grooves, namely the area of the adhesion pieces in the first groove is larger than that of the adhesion pieces in the second groove, the adhesion pieces in the first groove are the first adhesion pieces, the adhesive sheet in the second groove is a second adhesive sheet, under the action of negative pressure in the pipe clamp, the adhesive sheet (comprising the first adhesive sheet and the second adhesive sheet) is completely attached to the first groove and the second groove, then the far end of the pipe clamp provided with the groove of the blood vessel anastomosis clamp is close to a blood vessel to be anastomosed, a medical worker holds the micro-forceps to adhere the broken end of one side of the dissociated blood vessel to the half side (for example, the end a shown in figure 6) in the first adhesive sheet, due to the through hole formed in the adhesive sheet, the negative pressure in the pipe clamp can penetrate through the adhesive sheet to act on the blood vessel to be anastomosed, so that the blood vessel to be anastomosed is adsorbed in the first groove, the blood vessel on the other side is placed on the other half side (for example, the end b shown in figure 6) of the first adhesive sheet, then extrusion force is applied to the elastic piece, and the pipe clamps on the two sides are close to each other, the second adhesive sheet is close to the first adhesive sheet, so that the first adhesive sheet and the second adhesive sheet surround, and the two disconnected blood vessels are clamped by the adhesive sheets to realize the adhesive anastomosis of the disconnected blood vessels; meanwhile, in the process of closing, the blood vessels at the two broken ends are enabled to pass through 1-2mm in the axial direction, then after the pipe clamps are combined, along with the elastic retraction of the blood vessels, the broken ends of the blood vessels passing through the closing can be automatically closed and compacted, then the negative pressure device is closed, the pipe clamps are loosened to check whether the adhesion between the negative surface of the blood vessel wall and the adhesion sheet is tight, the closing condition of the negative surface of the blood vessel wall and whether the adhesion agent is remained in the blood vessel cavity, and two needles (used for preventing the adhesion agent from leaking) can be sutured on the positive surface of the broken blood vessel wall; if there is slight adhesion between the recess of discovery blood vessel adhesion piece and vascular clamp suction head, it can with unclamping the return bend clamp with the assistance of small vessel forceps, this dress simple structure, and easy operation is thrifty time and art person's energy, thereby the anastomotic needle line alleviates the damage to the vascular wall and the remaining incidence that reduces the postoperative thrombus less, because the anastomotic clamp's in this scheme simple structure, and then make the production low in manufacturing cost who anastomoses the clamp, make simultaneously because easy operation, the requirement to the user reduces, and then increased the application scope that the vascular anastomotic clamp was pressed from both sides.

Preferably, the adhesive sheet is made of biodegradable material; the connected silk thread may also be changed to an absorbable thread for clinical use. In the working process, as the part of the connecting line of the adhesion piece is in vivo after anastomosis, the used adhesion piece can not harm the health of human body, the adhesion piece and the absorbable line are made of biodegradable materials (such as polylactic acid, glycolic acid polymeric material and the like), and then the adhesion piece and the connecting line can be discharged out of the body along with the metabolism of the human body along with the healing of a wound after the blood vessel anastomosis, thereby ensuring the health of the human body, and simultaneously, the adhesion piece does not need to be taken out for a secondary operation, thereby leading the anastomosis operation to be simpler and more convenient and further enhancing the practicability, the adhesion piece in the scheme firstly fixes the silk thread (which can adopt the silk thread or the absorbable line used clinically) on a mould during the manufacturing process, then the granular polylactic acid material is placed on the mould, and the aggregated lactic acid material is heated (the temperature is between 100 ℃ and 180 ℃) through heating tools such as a hot air gun and the like, so that the polylactic acid material is melted and enters the die, and is connected with the anastomotic line in a hot melting way to form an integral structure; and then placing the die and the adhesive sheet in sterile hot water for soaking and demolding, and then trimming the adhesive sheet through a tool to form the adhesive sheet.

Preferably, the clamping member includes a connecting member and a clamping member; one end of the pipe clamp is provided with the connecting piece; the connecting piece is fixedly connected with the pipe clamp; the connecting piece is arranged in a hollow mode, the clamping piece is arranged inside the connecting piece, and a clamping groove is formed in the middle of the clamping piece; notches are symmetrically formed in the connecting piece; the notch is superposed with the clamping groove.

The during operation, because carrying out the anastomotic in-process of blood vessel, the gesture that the anastomotic clamp will be put is not necessarily fixed, and one side at anastomotic in-process adhesion piece is the negative pressure, consequently in order to guarantee the better form of keeping of the anastomotic in-process adhesion piece can stabilize, consequently in this scheme, be provided with clamping part simultaneously and be provided with the connecting wire on adhesion piece through two distal end sides at the pipe clamp, when carrying out the preoperative preparation of adhesion piece, place into the inside back of recess with adhesion piece, inside the draw-in groove with adhesion any line card on the upper side at the clamping part, and then increased adhesion piece's stability, and then reduced the risk that adhesion piece appears the position removal in the operation process, and then improved the reliability of anastomotic clamp in operation process, and then improved the convenience of use of anastomotic clamp.

Preferably, the clamping piece is made of elastic high-temperature-resistant materials.

During operation, because the clamp that coincide is medical equipment, and for reuse's surgical instruments, consequently all should disinfect before using at every turn, and to surgical instruments's disinfection means, what present mostly adopted is high temperature disinfection, consequently makes the clamping piece through the material that adopts high temperature resistant material in the scheme, and then when disinfecting to the clamp that coincide, guarantees that the clamping piece does not warp because of high temperature, and then has guaranteed that the clamping function of clamping piece self is not destroyed, and then has increased the adaptability of the clamp that coincide.

Preferably, the adhesion sheet is coated with sodium hyaluronate on the surface close to the pipe clamp groove.

During operation, before carrying out the operation, can paint medical sodium hyaluronate solution (executing Pepper) in being close to pipe clamp distal end recess one side of adhesion piece, make direct contact not between adhesion piece and the pipe clamp, and then prevent the in-process of carrying out the operation, organize liquid, adhesive and blood enter into between adhesion piece and the pipe clamp, and then prevent to organize liquid and blood and make adhesion piece and pipe clamp adhesion serious, and then prevent to lead to adhesion piece not hard up when loosening the pipe clamp because of the adhesion, through painting sodium hyaluronate solution, and then prevent when loosening the pipe clamp, adhesion piece is in the pipe clamp adhesion, and then improve the success rate of operation, and then increased the practicality of blood vessel anastomosis pincers.

Preferably, the side of the adhesion sheet adhered to the blood vessel is coated with a biological adhesive.

When the adhesive sheet works, the biological adhesive (which can be surgical adhesive and fibrin; one of the biological adhesives is WAB biological adhesive which is extracted from biological tissues by using modern engineering technology, is a high-purity biological enzyme preparation subjected to antigen treatment and filtration sterilization, mainly contains protein and polypeptide, has multiple functions of adhesion, pain relieving, bleeding stopping, healing promotion, scar hyperplasia inhibition and the like, contains multiple antibacterial components in WAB, can prevent the reproduction of bacteria in an incision, thereby preventing the infection and suppuration of the incision and improving the first-level suture rate of the incision, has simple and easily mastered operation, reduces the incision pain after operation, does not need disinfection and replacement, and thread removal, shortens the recovery period after operation), further ensures that the adhesive sheet can be firmly adhered to the outer wall of a blood vessel, further ensures that the anastomotic part of the blood vessel can be completely adhered to the adhesive sheet, so that the blood vessel can keep the filling state at the anastomotic site, thereby preventing the imagination of thrombus and inflammatory reaction at the anastomotic site and further improving the success rate of the operation.

The utility model has the following beneficial effects:

1. in the utility model, because the existing anastomat has high manufacturing cost and complex structure, the suturing operation process of the blood vessel is further complex, and the requirement of the blood vessel suturing operation on operators is higher, when the anastomosis clamp provided by the scheme is used for performing the blood vessel anastomosis, the inlet end of the pipe clamp in the anastomat is firstly communicated with the outlet end of the medical negative pressure device, and then the interior of the pipe clamp can be in a negative pressure state through the medical negative pressure device in the process of performing the blood vessel anastomosis, because the first groove and the second groove are respectively arranged at one end part of the pipe clamp, the adhesion sheets for adhering the blood vessel are arranged in the first groove and the second groove before the anastomosis is performed (the adopted adhesion sheets are matched with the corresponding grooves in nature, namely the area of the adhesion sheets in the first groove is larger than that of the adhesion sheets in the second groove, the adhesion sheets in the first groove are the first adhesion sheets, the adhesive sheet in the second groove is a second adhesive sheet, under the action of negative pressure inside the pipe clamp, the adhesive sheet (comprising the first adhesive sheet and the second adhesive sheet) is completely attached to the first groove and the second groove, then one end of the pipe clamp of the blood vessel anastomosis clamp, which is provided with the groove, is close to a blood vessel to be anastomosed, medical personnel hold the micro-forceps to adhere the broken end of one side of the dissociated blood vessel to the half side (for example, the end a shown in figure 6) in the first adhesive sheet, and due to the through hole arranged on the adhesive sheet, the negative pressure inside the pipe clamp can penetrate through the adhesive sheet to act on the blood vessel to be anastomosed, so that the blood vessel to be anastomosed is adsorbed in the first groove, the other half of the blood vessel on the other side is placed at the end (for example, the end b shown in figure 6) of the first adhesive sheet, and then extrusion force is applied to the elastic piece, so that the pipe clamps on the two sides are close to each other, the second adhesive sheet is close to the first adhesive sheet, so that the first adhesive sheet and the second adhesive sheet surround, and the two disconnected blood vessels are clamped by the adhesive sheets to realize the anastomosis of the disconnected blood vessels; meanwhile, in the process of closing, the blood vessels at the two broken ends are enabled to pass through 1-2mm in the axial direction, then after the pipe clamps are combined, along with the elastic retraction of the blood vessels, the broken ends of the blood vessels passing through the closing can be automatically closed and compacted, then the negative pressure device is closed, the pipe clamps are loosened to check whether the adhesion between the negative surface of the blood vessel wall and the adhesion sheet is tight, the closing condition of the negative surface of the blood vessel wall and whether the adhesion agent is remained in the blood vessel cavity, and two needles (used for preventing the adhesion agent from leaking) can be sutured on the positive surface of the broken blood vessel wall; if there is slight adhesion between the recess of discovery blood vessel adhesion piece and vascular clamp suction head, it can with unclamping the return bend clamp with little vessel forceps is supplementary, this dress simple structure, and easy operation is thrifty time and art person's energy, thereby the anastomotic needle line alleviates the damage to the vascular wall and the remaining incidence that has reduced the postoperative thrombus less, because the anastomotic clamp's in this scheme simple structure, and then make the production low in manufacturing cost of anastomotic clamp, make simultaneously because easy operation, the requirement to the user reduces, and then increased the application scope that the vascular anastomotic clamp was pressed from both sides.

2. In the utility model, because the part of the adhesion piece and the anastomosis line exists in vivo after anastomosis, the used adhesion piece can not harm the health of human body, the adhesion piece and the connecting line are made of biodegradable materials (such as polylactic acid, glycolic acid polymeric material and the like), and then after vascular anastomosis, the adhesion piece and the connecting line can be discharged out of the body along with the metabolism of the human body along with the healing of wounds, so that the health of the human body is ensured, meanwhile, the adhesion piece does not need to be taken out for a secondary operation, so that the anastomosis operation is simpler and more convenient, and the practicability is enhanced, in the manufacturing process of the adhesion piece in the scheme, the silk thread (which can be a clinically used silk thread or an absorbable thread) is firstly fixed on a mould, then the granular polylactic acid material is placed on the mould, and the gathered lactic acid material is heated (the temperature is between 100 ℃ and 180 ℃) through heating tools such as a hot air gun and the like, so that the polylactic acid material is melted and enters the die, and is connected with the silk thread in a hot melting way to form an integral structure; and then placing the die and the adhesive sheet in sterile hot water for soaking and demolding, and then trimming the adhesive sheet through a tool to form the adhesive sheet.

3. In the utility model, because the posture of the anastomosis clamp to be placed is not fixed and one side of the adhesion piece is negative pressure in the anastomosis process, in order to ensure that the adhesion piece can stably maintain a better shape in the anastomosis process, in the scheme, the clamping parts are arranged at the two ends of the pipe clamp, and the connecting line is arranged on the adhesion piece.

4. In the utility model, as the anastomosis clamp is medical equipment and is a recyclable surgical tool, disinfection treatment is required before each use, and high-temperature disinfection is mostly adopted for the disinfection means of surgical instruments, so that the clamping piece is made of a high-temperature-resistant material in the scheme, and further, when the anastomosis clamp is disinfected, the clamping piece is prevented from deforming due to high temperature, the clamping function of the clamping piece is prevented from being damaged, and the adaptability of the anastomosis clamp is improved.

5. Before an operation, a medical sodium hyaluronate solution (Pepper) can be coated on one side of the adhesion piece close to the pipe clamp, so that the adhesion piece is not in direct contact with the pipe clamp, tissue fluid, an adhesive and blood are prevented from entering between the adhesion piece and the pipe clamp in the operation process, the adhesion of the adhesion piece and the pipe clamp is further prevented from being serious due to the tissue fluid and the blood, the adhesion piece is further prevented from being loosened due to adhesion when the pipe clamp is loosened, the adhesion piece is prevented from being adhered to the pipe clamp when the pipe clamp is loosened by coating the sodium hyaluronate solution, the success rate of the operation is further improved, and the practicability of the blood vessel anastomosis forceps is further improved.

Drawings

The utility model will be further explained with reference to the drawings.

FIG. 1 is a schematic view of a first overall structure of a vascular anastomosis clip in accordance with the present invention;

FIG. 2 is a view showing the opened state of the vascular anastomosis clamp of the present invention;

FIG. 3 is a view showing the state in which the vessel-anastomotic clamp of the present invention is closed;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic view of the structure of the clamping member of the present invention;

FIG. 6 is a schematic view of the first embodiment of the present invention;

FIG. 7 is a schematic view of the second embodiment of the present invention;

in the figure: the clamp comprises an elastic piece 1, a pipe clamp 2, a first groove 3, a second groove 4, a clamping part 5, an adhesion sheet 6, a connecting line 7, a through hole 8, a connecting piece 9, a clamping piece 10 and a clamping groove 11.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1 to 7, a vascular anastomosis clip and an adhesive sheet 6 thereof comprise an elastic member 1, an adhesive sheet 6) and a tube clip 2; the two ends of the elastic piece 1 are symmetrically provided with the pipe clamps 2; the pipe clamp 2 is fixedly connected with the elastic piece 1; one end of the pipe clamp 2 is provided with a first groove 3; one end of the other pipe clamp 2 is provided with a second groove 4; the first groove 3 and the second groove 4 are arc-shaped structures; the radian of the first groove 3 is greater than that of the second groove 4; the radius of the first groove 3 is the same as that of the second groove 4; the sum of radians of the first groove 3 and the second groove 4 is a circumference; a clamping component 5 is arranged on one side of the pipe clamp 2; the clamping part 5 is connected with the pipe clamp 2; one end of the pipe clamp 2, which is far away from the clamping part 5, is communicated with an external medical negative pressure suction device; the adhesive sheet 6 is of an arc-shaped structure, and the adhesive sheet 6 is used for fixing and supporting a blood vessel; through holes 8 are uniformly arranged on the adhesive sheet 6 at intervals; the four corner positions of the adhesive sheet 6 are uniformly provided with anastomotic lines 7; one end of the anastomotic line 7 is fixedly connected with the adhesion sheet 6.

When the anastomat works, because the existing anastomat is high in manufacturing cost and complex in structure, the suturing operation process of blood vessels is further complex, the requirement of a blood vessel suturing operation on operators is high, when the anastomosis clamp provided by the scheme is used for performing blood vessel anastomosis, the inlet end of the pipe clamp 2 in the anastomat is firstly communicated with the outlet end of the medical negative pressure device, and then the interior of the pipe clamp 2 can be in a negative pressure state through the negative pressure device in the process of performing the blood vessel anastomosis, because the far-end port of the pipe clamp 2 is respectively provided with the first groove 3 and the second groove 4, before the anastomosis is performed, the adhesion sheets 6 for blood vessel adhesion are placed in the first groove 3 and the second groove 4 (the adopted adhesion sheets 6 are matched with the corresponding grooves in a nature, namely the area of the adhesion sheets 6 in the first groove 3 is larger than that of the adhesion sheets 6 in the second groove 4, the adhesion sheets 6 in the first groove 3 are first adhesion sheets, the adhesive sheet 6 in the second groove 4 is a second adhesive sheet, under the action of negative pressure inside the tube clamp 2, the adhesive sheet 6 (including the first adhesive sheet and the second adhesive sheet) is completely attached to the first groove 3 and the second groove 4, then one end of the tube clamp 2 provided with the groove of the blood vessel anastomosis forceps is close to a blood vessel to be anastomosed, a medical worker holds the micro forceps to adhere the broken end of one side of the dissociated blood vessel to one half side (for example, the end a shown in figure 6) in the first adhesive sheet 6, due to the through hole 8 arranged on the adhesive sheet 6, the negative pressure inside the tube clamp 2 can penetrate through the adhesive sheet 6 to act on the blood vessel to be anastomosed, so that the blood vessel to be anastomosed is adsorbed in the first groove 3, and the blood vessel on the other side is placed on the other half side (for example, the end b shown in figure 6) of the first adhesive sheet, then, extrusion force is applied to the elastic piece 1, so that the pipe clamps 2 on the two sides are close to each other, the second adhesion piece is close to the first adhesion piece, the first adhesion piece and the second adhesion piece are enclosed, and the two disconnected blood vessels are clamped by the adhesion pieces 6 to realize the anastomosis of the disconnected blood vessels; meanwhile, in the process of closing, the blood vessels at the two broken ends are enabled to pass through 1-2mm in the axial direction, then after the pipe clamps 2 are combined, the broken ends of the blood vessels passing through the closing can be automatically closed and compacted along with the elastic retraction of the blood vessels, then the negative pressure device is closed, the pipe clamps 2 are loosened to check whether the adhesion between the negative surface of the blood vessel wall and the adhesion sheet 6 is tight, the closing condition of the negative surface of the blood vessel wall and whether the residual adhesive exists in the blood vessel cavity, and two needles (used for preventing the leakage of the adhesive) can be sewn on the positive surface of the broken blood vessel wall; if there is slight adhesion between the recess of discovery blood vessel adhesion piece 6 and vascular clamp 2 suction heads, supplementary in order to loosen curved tube clamp 2 with little vessel forceps can, this dress simple structure, moreover, the operation is simple, thrifty time and operator's energy, thereby the anastomotic needle line alleviates the damage to the vascular wall and remains of line and has reduced the incidence of postoperative thrombus less, because the anastomotic clamp's in this scheme simple structure, and then make the production low in manufacturing cost who anastomoses the clamp, make simultaneously because easy operation, the requirement to the user reduces, and then increased the application scope that the blood vessel anastomotic clamp pressed from both sides.

The adhesive sheet 6 is made of biodegradable material; the anastomotic line 7 is made of biodegradable materials.

In the working process, after anastomosis, the part of the adhesion sheet 6 and the anastomosis line 7 is in vivo, so the used adhesion sheet 6 cannot harm the health of a human body, the adhesion sheet 6 and the anastomosis line 7 are made of biodegradable materials (such as polylactic acid, glycolic acid polymeric materials and the like), and then after the blood vessel anastomosis, along with the healing of a wound, the adhesion sheet 6 and the anastomosis line 7 can be discharged out of the body along with the metabolism of the human body, so the health of the human body is ensured, meanwhile, the anastomosis operation is simpler and more convenient without taking out for a secondary operation, and the practicability is further enhanced, in the manufacturing process of the adhesion sheet 6 in the scheme, the anastomosis line 7 (which can adopt clinically used silk threads or absorbable lines) is firstly fixed on a mould, then granular polylactic acid materials are placed on the mould, and heating tools such as a hot air gun are used, heating the gathered lactic acid material (the temperature is between 100 and 180 ℃) so as to melt the polylactic acid material, then enabling the polylactic acid material to enter the die, and simultaneously connecting the polylactic acid material and the anastomosis line 7 in a hot melting manner to form an integral body; then, the die and the adhesive sheet 6 are placed in sterile hot water for soaking and demolding, and then the adhesive sheet 6 is trimmed by a tool to form the adhesive sheet 6.

As shown in fig. 1 to 5, the clamping member 5 includes a connecting member 9 and a clamping member 10; one end of the pipe clamp 2 is provided with the connecting piece 9; the connecting piece 9 is fixedly connected with the pipe clamp 2; the connecting piece 9 is arranged in a hollow mode, the clamping piece 10 is arranged inside the connecting piece 9, and a clamping groove 11 is formed in the middle of the clamping piece 10; notches are symmetrically formed in the connecting piece 9; the notch coincides with the card slot 11.

The during operation, because at the anastomotic in-process of carrying out the blood vessel, the gesture that coincide pincers will be put is not necessarily fixed, and be the negative pressure in anastomotic in-process adhesion piece 6 one side, consequently in order to guarantee the better form of keeping that adhesion piece 6 can stabilize at anastomotic in-process, consequently in this scheme, be provided with clamping part 5 simultaneously at adhesion piece 6 through the both ends at pipe clamp 2 and be provided with connecting wire 7 on this scheme, when carrying out adhesion piece 6 preoperative preparation, place adhesion piece 6 into inside the back of recess, connecting wire joint on with adhesion piece is inside clamping groove 11 of clamping piece 10, and then increased adhesion piece 6's stability, and then reduced the risk that adhesion piece 6 appears the position removal in the operation process, and then improved the reliability of anastomotic clamp in the operation process, and then improved the convenience of use of anastomotic clamp.

The clamping member 10 is made of an elastic high-temperature resistant material.

During operation, because the anastomosis clamp is medical equipment and is a reusable surgical tool, the anastomosis clamp should be disinfected before being used each time, and the disinfection means for surgical instruments is high-temperature disinfection, so that the clamping piece 10 is made of a material made of a high-temperature-resistant material in the scheme, and further when the anastomosis clamp is disinfected, the clamping piece 10 is guaranteed not to deform due to high temperature, the clamping function of the clamping piece 10 is guaranteed not to be damaged, and the adaptability of the anastomosis clamp is improved.

One side of the adhesive sheet 6 is coated with sodium hyaluronate.

During operation, before carrying out the operation, can paint medical sodium hyaluronate solution (executing Pepper) in the one side that is close to pipe clamp 2 of adhesion piece 6, make direct contact not between adhesion piece 6 and pipe clamp 2, and then prevent the in-process of carrying out the operation, organize liquid, adhesive and blood enter into between adhesion piece 6 and the pipe clamp 2, and then prevent that organize liquid and blood to make adhesion piece 6 serious with 2 adhesions of pipe clamp, and then prevent to lead to adhesion piece 6 not hard up because of the adhesion when loosening pipe clamp 2, through painting sodium hyaluronate solution, and then prevent when loosening pipe clamp 2, adhesion piece 6 is in 2 adhesions of pipe clamp, and then improve the success rate of operation, and then increased the practicality of the anastomotic clamp of blood vessel.

The other side of the adhesive sheet 6 is coated with biological adhesive.

When the biological adhesive is in work, the other side surface of the adhesive sheet 6 is coated with a biological adhesive.

When the operation is carried out, biological adhesive (can be surgical adhesive and fibrin; one of the biological adhesive is WAB biological adhesive which is extracted from biological tissues by using modern engineering technology, is a high-purity biological enzyme preparation subjected to antigen treatment and filtration sterilization, mainly contains protein and polypeptide, has multiple functions of adhesion, pain relieving, bleeding stopping, healing promotion, scar hyperplasia inhibition and the like, contains multiple bacteriostatic components in WAB, can prevent the reproduction of bacteria in an incision, thereby preventing the infection and suppuration of the incision and improving the grade A suture rate of the incision, has simple and easily mastered operation, reduces the incision pain after the operation, does not need to disinfect, change medicines and remove threads, shortens the recovery period after the operation), further ensures that the adhesive sheet 6 can be firmly adhered to the outer wall of a blood vessel, and further ensures that the anastomotic part of the blood vessel can be completely adhered to the adhesive sheet 6, so that the blood vessel can keep the filling state at the anastomotic site, thereby preventing the imagination of thrombus and inflammatory reaction at the anastomotic site and further improving the success rate of the operation.

When the anastomat works, because the existing anastomat is high in manufacturing cost and complex in structure, the suturing operation process of blood vessels is further complicated, and the requirement of a blood vessel suturing operation on an operator is high, when the anastomosis clamp provided by the scheme is used for performing blood vessel anastomosis, the inlet end of the pipe clamp 2 in the anastomat is firstly communicated with the outlet end of the medical negative pressure device, and then the interior of the pipe clamp 2 can be in a negative pressure state through the negative pressure suction device in the process of performing the blood vessel anastomosis, because the first groove 3 and the second groove 4 are respectively arranged at the far end opening of the pipe clamp 2, before the anastomosis is performed, the adhesion pieces 6 for blood vessel adhesion are arranged in the first groove 3 and the second groove 4 (the adopted adhesion pieces 6 are matched with the corresponding grooves in a nature, namely the area of the adhesion pieces 6 in the first groove 3 is larger than that of the adhesion pieces 6 in the second groove 4, the adhesion pieces 6 in the first groove 3 are first adhesion pieces, the adhesion piece 6 in the second groove 4 is a second adhesion piece, under the action of negative pressure inside the tube clamp 2, the adhesion piece 6 (comprising the first adhesion piece and the second adhesion piece) is completely attached to the first groove 3 and the second groove 4, then the end, provided with the groove, of the tube clamp 2 of the blood vessel anastomosis clamp is close to a blood vessel to be anastomosed, a medical worker holds the micro-forceps to adhere the broken end of one side of the dissociated blood vessel to the half side (for example, the end a shown in figure 6) in the first adhesion piece 6, due to the through hole 8 arranged on the adhesion piece 6, the negative pressure inside the tube clamp 2 can penetrate through the adhesion piece 6 to act on the blood vessel to be anastomosed, so that the blood vessel to be anastomosed is adsorbed in the adhesion piece 6 of the first groove, the blood vessel on the other side is placed on the other half side (for example, the end b shown in figure 6) of the first adhesion piece, then, extrusion force is applied to the elastic piece 1, so that the pipe clamps 2 on the two sides are close to each other, the second adhesion piece is close to the first adhesion piece, the first adhesion piece and the second adhesion piece are enclosed, and the two disconnected blood vessels are clamped by the adhesion pieces 6 to realize the anastomosis of the disconnected blood vessels; meanwhile, in the process of closing, the blood vessels at the two broken ends are enabled to pass through 1-2mm in the axial direction, then after the pipe clamps 2 are combined, the broken ends of the blood vessels passing through the closing can be automatically closed and compacted along with the elastic retraction of the blood vessels, then the negative pressure device is closed, the pipe clamps 2 are loosened to check whether the adhesion between the negative surface of the blood vessel wall and the adhesion sheet 6 is tight, the closing condition of the negative surface of the blood vessel wall and whether the residual adhesive exists in the blood vessel cavity, and two needles (used for preventing the leakage of the adhesive) can be sewn on the positive surface of the broken blood vessel wall; if slight adhesion exists between the blood vessel adhesion sheet 6 and the groove of the blood vessel clamp 2 suction head, the small blood vessel clamp is used for assisting to loosen the curved tube clamp 2, the device has a simple structure, is simple to operate, saves time and energy of an operator, reduces damage to a blood vessel wall and residue of a wire for an anastomotic needle and a wire, and reduces incidence of postoperative thrombus; because the part of the adhesion sheet 6 and the anastomotic line 7 is in vivo after anastomosis, the used adhesion sheet 6 can not harm the health of human body, therefore, the adhesion sheet 6 and the anastomotic line 7 are made of biodegradable materials (such as polylactic acid, glycolic acid polymeric material, etc.), and then the adhesion sheet 6 and the anastomotic line 7 can be discharged out of the body along with the metabolism of human body along with the healing of wound after the blood vessel anastomosis, thereby ensuring the health of human body, meanwhile, the adhesion sheet 6 in the scheme does not need to be taken out for the secondary operation, thereby leading the anastomosis operation to be simpler and more convenient and further enhancing the practicability, in the manufacturing process of the adhesion sheet 6, the anastomotic line 7 (which can adopt clinically used silk threads or absorbable lines) is firstly fixed on a mould, then granular polylactic acid material is placed on the mould, the lactic acid material is heated (the temperature is between 100 ℃ and 180 ℃) through heating tools such as a hot air gun, so that the polylactic acid material is melted and enters the die, and is connected with the anastomosis line 7 in a hot melting way to form an integral structure; then, the die and the adhesive sheet 6 are placed in sterile hot water for soaking and demolding, and then the adhesive sheet 6 is trimmed by a tool to form the adhesive sheet 6.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (6)

1. A blood vessel anastomosis clamp and an adhesive sheet thereof are characterized in that: comprises an elastic piece (1), an adhesive sheet (6) and a pipe clamp (2); the two ends of the elastic piece (1) are symmetrically provided with the pipe clamps (2); the pipe clamp (2) is fixedly connected with the elastic piece (1); one pipe clamp (2) is provided with a first groove (3) at the distal end part; a second groove (4) is formed in the far end of the other pipe clamp (2); the first groove (3) and the second groove (4) are arc-shaped structures; the radian of the first groove (3) is greater than that of the second groove (4); the radius of the first groove (3) is the same as that of the second groove (4); the sum of the radians of the first groove (3) and the second groove (4) is a circumference; a clamping component (5) is arranged on one side of the pipe clamp (2); the clamping component (5) is connected with the pipe clamp (2); the inlet end of the pipe clamp (2) is communicated with a medical negative pressure suction device; the adhesive sheet (6) is of an arc-shaped structure, and the adhesive sheet (6) is used for adhering, fixing and supporting a blood vessel; through holes (8) are uniformly arranged on the adhesive sheet (6) at intervals; the adhesive sheet (6) is connected with an anastomosis line (7); one end of the anastomotic line (7) is fixedly connected with the adhesion sheet (6).

2. The vascular anastomosis clip and the adhesive wafer thereof according to claim 1, wherein: the adhesive sheet (6) is made of biodegradable material.

3. The vascular anastomosis clip and the adhesive wafer thereof according to claim 2, wherein: the clamping part (5) comprises a connecting piece (9) and a clamping piece (10); the connecting piece (9) is arranged on the side of the far end of the pipe clamp (2); the connecting piece (9) is fixedly connected with the pipe clamp (2); the connecting piece (9) is arranged in a hollow mode, the clamping piece (10) is arranged inside the connecting piece (9), and a clamping groove (11) is formed in the middle of the clamping piece (10); notches are symmetrically formed in the connecting piece (9); the notch is superposed with the clamping groove (11).

4. The vascular anastomosis clip and the adhesive wafer thereof according to claim 3, wherein: the clamping piece (10) is made of elastic high-temperature-resistant materials.

5. The vascular anastomosis clip and the adhesive wafer thereof according to claim 4, wherein: one side of the adhesive sheet (6) is coated with sodium hyaluronate.

6. The vascular anastomosis clip and the adhesive wafer thereof according to claim 5, wherein: the other side surface of the adhesive sheet (6) is coated with biological adhesive.

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