CN113040848A

CN113040848A - Isolated severed limb blood vessel anastomosis device

Info

Publication number: CN113040848A
Application number: CN202110300615.6A
Authority: CN
Inventors: 杨璟辉; 郑鳕洋; 王纪渊
Original assignee: Shanghai Changzheng Hospital
Current assignee: Shanghai Changzheng Hospital
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-06-29

Abstract

The invention discloses an isolated vascular anastomosis device for severed limbs. Rods, positioning rods, sliders, threaded holes, card seats, positive and negative threaded rods, knobs, bases and card slots. The beneficial effects of the invention are as follows: there are several non-damaged vascular clamps, which are replaceable devices, respectively composed of a rotating splint and a fixed splint. In order to adapt to the needs of vascular anastomosis under different sizes and conditions, the occlusal parts of the rotating splint and the fixed splint are both non-damaged structures with no ribs or patterns on the inside, which is convenient for stably holding the blood vessel and avoiding damage to the blood vessel wall. The positioning rod is a square straight rod. The structure prevents the rotation and deviation of the blood vessel clip, and the positive and negative threaded rods are connected with the slider in a threaded rotation, so that the sliders at both ends move toward each other to realize the blood vessel anastomosis connection.

Description

Isolated severed limb blood vessel anastomosis device

Technical Field

The invention relates to a blood vessel anastomosis device, in particular to an isolated amputated limb blood vessel anastomosis device, and belongs to the technical field of medical and research equipment.

Background

The blood vessels are a series of channels through which blood flows, except for cornea, hair, nails, dentin and epithelium, the blood vessels are distributed throughout the body, and are divided into three types, namely arterial blood vessels, venous blood vessels and capillary blood vessels according to different structural functions, the blood vessels of the body are communicated with one another directly between the arteries, veins and even between the arteries and veins except for the arteries, capillaries and veins, so that vascular anastomosis is formed, and medical and research personnel need to communicate broken or blocked blood vessels in tissues to restore partial functions of isolated amputated limbs when researching the isolated amputated limbs of organisms. The broken end of the blood vessel of the amputated limb (finger) usually has a certain degree of retraction along with the fracture of muscles or tendons, when the anastomosis is performed after the trimming treatment of the stump of the blood vessel, the distortion of the blood vessel wall is easily caused by traction, and the local avulsion and damage of the blood vessel wall are easily caused by the traditional two-point or three-point fixed suture method on the basis of larger tension of the blood vessel, so that the complications of postoperative anastomotic bleeding, intravascular thrombosis, vascular stenosis and even occlusion and the like are increased, and the success rate of in-vitro short limb (finger) repair is influenced. Therefore, avoiding vessel distortion and relieving vessel tension is the key to short limb (finger) vessel anastomosis, and this research procedure is often accomplished by vessel anastomosis devices.

The existing blood vessel anastomosis device is simple in structure, firstly, the traditional isolated amputated limb (finger) blood vessels are often anastomosed by suturing, although the blood vessels can be communicated, the suturing process is complex, and particularly when the blood vessels face to the conditions of thin blood vessels, blood vessels with thin wall, hardened blood vessels and the like, the suturing is more complex and difficult, more complications exist, and the operation difficulty of medical and research personnel is greatly increased; secondly, the height and the angle of the used vascular clamp are certain, or the type and the size of the vascular clamp cannot be selected, and the vascular clamp cannot be adjusted according to the actual operation condition, so that more limitations exist; thirdly, the square positioning rod is not arranged on the lower threaded rod, so that the rotation deviation of the vascular clamp is easily caused, and the in-vitro severed limb (finger) vascular anastomosis ends at two ends cannot be in parallel vertical planes, so that the vascular distortion is easily caused; fourthly, the operation of the partial blood vessel anastomosis device is complex, inconvenient and independent operation is not beneficial to improving the anastomosis efficiency.

Disclosure of Invention

The invention aims to solve the problems and provide an isolated severed limb vascular anastomosis device.

The invention realizes the purpose through the following technical scheme: an in-vitro severed limb blood vessel anastomosis device comprises a nondestructive blood vessel clamp, a rotating clamp plate, a pressing plate, a fixed clamp plate, a connecting lug, a connecting shaft, a spring, an upper threaded rod, a limiting hole, an adjusting sleeve, a lower threaded rod, a positioning rod, a sliding block, a threaded hole, a clamping seat, a positive threaded rod, a negative threaded rod, a knob, a base and a clamping groove; the vascular clamp without damage, the upper threaded rod, the adjusting sleeve, the lower threaded rod, the slider, the positive and negative threaded rods and the base form a main body structure of the device, the vascular clamp without damage comprises a rotating splint and a fixed splint, a pressing plate is arranged at the bottom end of the rotating splint, the connecting lugs are correspondingly arranged on the inner faces of the rotating splint and the fixed splint, the rotating splint and the fixed splint are connected by a connecting shaft passing through a central hole of the connecting lug, the spring is sleeved on the connecting shaft, the upper threaded rod is welded and fixed at the bottom end of the fixed splint, the limiting hole is arranged at the center of the bottom surface of the upper threaded rod, the adjusting sleeve is sleeved at the lower end of the upper threaded rod, the lower threaded rod is in threaded connection with the lower end of the adjusting sleeve, the positioning rod is arranged at the center of the upper end of, the base is provided with a clamping groove, the base is provided with a clamping seat, the clamping seat is welded on the bottom surface of the sliding block, the positive and negative threaded rod is connected with the sliding block through a threaded hole, the knob is arranged at the outer end of the positive and negative threaded rod, the middle of the upper end of the base is provided with the clamping groove, and the sliding block is arranged in the clamping groove through the clamping seat and is.

Preferably, in order to be convenient for stably clamping different isolated severed limb blood vessels, the atraumatic vascular forceps are provided with a plurality of replaceable devices, and the occlusion parts of the rotating splint and the fixed splint of the atraumatic vascular forceps are of an atraumatic structure without inner side ribs or patterns.

Preferably, in order to facilitate the adjustment of the vascular clamp to adapt to different angles, the tail end of the fixed clamping plate is connected with the sleeve shaft through a universal joint and is provided with a fixed locking structure, and the fixed clamping plate can rotate in different directions up, down, left and right within a certain angle.

Preferably, in order to prevent the rotation deviation of the vascular forceps without damage, the positioning rod is arranged in the limiting hole and is of a square straight rod structure.

Preferably, in order to enable the sliding blocks at the two ends to move inwards in opposite directions through the positive and negative threaded rods so as to achieve anastomotic connection of the severed limb blood vessel in vitro, the positive and negative threaded rods penetrate through the sliding blocks, and the positive and negative threaded rods are in threaded rotary connection with the sliding blocks through threaded holes.

Preferably, in order to enable the sliding block to slide stably on the base, the clamping seat is clamped and arranged in the clamping groove, and the sliding block is connected with the base through the clamping seat and the clamping groove in a sliding groove mode.

The invention has the beneficial effects that: this isolated limb blood vessel anastomosis device reasonable in design, the blood vessel presss from both sides a plurality of, for replaceable device, and the rotation splint of blood vessel clamp all are the not damaged structure with the solid fixed splint inboard, stabilize centre gripping isolated limb (indicate) blood vessel under the different conditions of being convenient for to can effectively avoid the damage of vascular wall. Compress tightly simultaneously and press the clamp plate, realize rotating splint and solid fixed splint and to the spring extrusion, and then can make things convenient for the fixed blood vessel of stable centre gripping. The vascular clamp is connected with the sleeve shaft through the universal joint at the tail end of the fixed clamping plate and is provided with a fixed locking structure, so that the vascular clamp can rotate in different directions within a certain angle, the position of the vascular clamp can be conveniently adjusted according to the vascular condition and the specific condition of the injury of the short limb (finger) in vitro, and the vascular anastomosis requirement under different conditions can be met. Go up the screw thread opposite direction of threaded rod and lower threaded rod, and the adjusting collar all is the screw thread rotation with last threaded rod and lower threaded rod and is connected, the adjusting collar inner wall is equipped with the screw thread that corresponds with last threaded rod and lower threaded rod simultaneously, through rotating the adjusting collar, realize the lift of threaded rod, and then be convenient for adjust the height of both ends vascular clamp, spacing downthehole is arranged in to the locating lever, and the locating lever is square straight-bar structure, can prevent the vascular clamp rotatory skew, thereby can ensure that the amputative limb vascular anastomosis of the separation at both ends holds in parallel vertical plane, positive and negative threaded rod passes the slider, and positive and negative threaded rod is the screw thread rotation with the slider through the screw hole and is connected, the slider that makes both ends can be inward relative motion through positive and negative threaded rod in order to. After the vascular clip stabilizes centre gripping vascular disconnected end, it is close to make the identical mouthful of blood vessel be close to through positive and negative threaded rod, can make the even atress of vascular disconnected end, and alleviate vascular tension to a certain extent, can effectively avoid traditional fixed point suture method to lead to the defect that the vascular wall tears to take off easily also to make things convenient for doctors and researchers to operate the use simultaneously, the cassette card is put and is settled in the draw-in groove, and the slider is the draw-in groove through cassette and draw-in groove with the base and is connected, can make the slider steadily slide on the base, and then make the blood vessel at both ends slowly be close to and kis. The invention has simple and clear operation, can be independently operated by a single person, creates a stable anastomosis environment for the anastomosis of the isolated short limb (finger) blood vessel, and improves the accuracy and the efficiency of the blood vessel anastomosis.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the atraumatic vascular clamp of the present invention;

FIG. 3 is a schematic view of the spring structure of the present invention;

FIG. 4 is a schematic view of the connection structure of the upper threaded rod and the lower threaded rod of the present invention;

FIG. 5 is a schematic view of the connection structure of the slider and the base according to the present invention.

In the figure: 1. the nondestructive vascular clamp comprises a nondestructive vascular clamp body, 2, a rotating splint, 3, a pressing plate, 4, a fixing splint, 5, a connecting lug, 6, a connecting shaft, 7, a spring, 8, an upper threaded rod, 9, a limiting hole, 10, an adjusting sleeve, 11, a lower threaded rod, 12, a positioning rod, 13, a sliding block, 14, a threaded hole, 15, a clamping seat, 16, a positive and negative threaded rod, 17, a knob, 18, a base, 19 and a clamping groove.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Referring to fig. 1 to 5, an anastomosis device for an isolated severed limb blood vessel comprises a non-traumatic blood vessel forceps 1, a rotary splint 2, a pressing plate 3, a fixed splint 4, a connecting lug 5, a connecting shaft 6, a spring 7, an upper threaded rod 8, a limiting hole 9, an adjusting sleeve 10, a lower threaded rod 11, a positioning rod 12, a sliding block 13, a threaded hole 14, a clamping seat 15, a positive and negative threaded rod 16, a knob 17, a base 18 and a clamping groove 19; the vascular pincers of not damaged 1, go up threaded rod 8, adjusting collar 10, lower threaded rod 11, slider 13, positive and negative threaded rod 16 and base 18 constitute the device's major structure, vascular pincers of not damaged 1 comprises rotating splint 2 and solid fixed splint 4, the bottom of rotating splint 2 is equipped with pressing plate 3, engaging lug 5 corresponds the setting and rotates splint 2 and solid fixed splint 4 inner face, just rotating splint 2 and solid fixed splint 4 pass the centre bore of engaging lug 5 through connecting axle 6 and connect, spring 7 overlaps on connecting axle 6, go up threaded rod 8 welded fastening in the bottom of solid fixed splint 4, spacing hole 9 is seted up in 8 bottom surfaces center departments of last threaded rod, adjusting collar 10 covers the lower extreme of last threaded rod 8, threaded rod 11 threaded connection is at adjusting collar 10 lower extreme down, locating lever 12 sets up in 11 upper end center departments of threaded rod down, the slider 13 is welded and fixed at the bottom end of the lower threaded rod 11, the threaded hole 14 is formed in the center of the side face of the slider 13, the clamping seat 15 is welded on the bottom face of the slider 13, the forward and reverse threaded rod 16 is connected with the slider 13 through the threaded hole 14, the knob 17 is arranged at the outer end of the forward and reverse threaded rod 16, the clamping groove 19 is formed in the center of the upper end of the base 18, and the slider 13 is connected with the base 18 through the clamping seat 15 in the clamping groove 19.

The nondestructive vascular forceps 1 are provided with a plurality of nondestructive vascular forceps 1, the occlusion parts of the rotating splint 2 and the fixed splint 4 of the nondestructive vascular forceps 1 are of nondestructive structures without ribs or patterns on the inner sides, so that isolated severed limb blood vessels can be stably clamped conveniently, the pressing plate 3 is pressed simultaneously, the rotating splint 2 and the fixed splint 4 can extrude the spring 7, and further blood vessels can be stably clamped conveniently and fixedly, the tail end of the fixed splint 4 is connected with a sleeve shaft through a universal joint and is provided with a fixed locking structure, the blood vessels can rotate in different directions from top to bottom and from left to right within a certain angle, the position of the vascular forceps can be adjusted conveniently according to blood vessel conditions and the specific conditions of isolated severed limb (finger) damage, so as to adapt to blood vessel anastomosis requirements under different conditions, the positioning rod 12 is arranged in the limiting hole 9, the positioning rod 12 is of a square straight rod structure, the nondestructive vascular forceps 1 can be prevented from rotating and deviating, and therefore the isolated, the positive and negative threaded rod 16 passes slider 13, and positive and negative threaded rod 16 is the screw thread rotation with slider 13 through screw hole 14 and is connected, make the slider 13 at both ends can be inwards through positive and negative threaded rod 16 and move in opposite directions in order to realize that the isolated limb of fractured limb blood vessel is anastomotic to be connected together, after harmless vascular forceps 1 stabilizes the centre gripping vascular broken end, make the blood vessel anastomotic stoma be close to through positive and negative threaded rod, can make the even atress of vascular broken end, and alleviate vascular tension to a certain extent, can effectively avoid the defect that traditional fixed point suture method leads to the vascular wall to tear easily and take off, also make things convenient for doctors and researchers to operate and use simultaneously, cassette 15 card is put and is settled in draw-in groove 19, and slider 13 and base 18 are the draw-in groove type through cassette 15 and draw-in groove 19 and are connected, can make slider 13 steadily slide on base 18.

The working principle is as follows: when the isolated severed limb vascular anastomosis device is used, firstly, the nondestructive vascular forceps 1 is assembled through the rotating splint 2, the fixed splint 4, the connecting lug 5, the connecting shaft 6 and the spring 7, then the upper threaded rod 8 is welded and fixed at the bottom end of the fixed splint 4, then the upper threaded rod 8 is connected with the lower threaded rod 11 welded with the sliding block 13 through the adjusting sleeve 10, meanwhile, the positioning rod 12 is inserted into the limiting hole 9, finally, the positive and negative threaded rod 16 is in threaded connection with the sliding block 13 through the threaded hole 14, the fixed knob 17 is welded at the outer end of the positive and negative threaded rod 16, then the sliding block 13 is clamped and arranged in the clamping groove 19 of the base 18 through the clamping seat 15, during the process, the pressing plate 3 is pressed, the rotating splint 2 and the fixed splint 4 extrude the spring 7, namely, the isolated severed limb vascular can be stably clamped and fixed in the arc-shaped grooves of the, and then rotate adjusting collar 10, the lift of threaded rod 8 is gone up in the realization, thereby adjust both ends not damaged vascular pincers 1 to suitable height, rethread knob 17 rotates positive and negative threaded rod 16, the slider 13 that makes both ends is the inward relative motion in order to realize that the isolated limb blood vessel anastomoses and links together, the square locating lever 12 that sets up simultaneously can prevent not damaged vascular pincers 1 rotational deviation, thereby can ensure that the isolated limb blood vessel anastomoses end at both ends is in the vertical plane of parallel, make the blood vessel coincide completely.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An isolated vascular anastomosis device for amputated limbs, characterized in that: comprising a non-invasive vascular clamp (1), a rotating splint (2), a pressing plate (3), a fixed splint (4), a connecting ear (5), a connecting Shaft (6), spring (7), upper threaded rod (8), limit hole (9), adjusting sleeve (10), lower threaded rod (11), positioning rod (12), slider (13), thread A hole (14), a card seat (15), a positive and negative threaded rod (16), a knob (17), a base (18) and a card slot (19); the non-invasive vascular forceps (1), the upper threaded rod (8) ), adjustment sleeve (10), lower threaded rod (11), slider (13), positive and negative threaded rod (16) and base (18) constitute the main structure of the device, and the non-invasive vascular clamp (1) consists of The rotating splint (2) and the fixed splint (4) are composed, the bottom end of the rotating splint (2) is provided with a pressing plate (3), and the connecting ears (5) are correspondingly arranged on the rotating splint (2) and the fixed splint ( 4) The inner surface, and the rotating splint (2) and the fixed splint (4) are connected through the connecting shaft (6) through the central hole of the connecting ear (5), and the spring (7) is sleeved on the connecting shaft (6) The upper threaded rod (8) is welded and fixed to the bottom end of the fixed splint (4), the limit hole (9) is opened at the center of the bottom surface of the upper threaded rod (8), and the adjustment sleeve (10) is sleeved At the lower end of the upper threaded rod (8), the lower threaded rod (11) is threadedly connected to the lower end of the adjusting sleeve (10), the positioning rod (12) is arranged at the center of the upper end of the lower threaded rod (11), and the slider ( 13) Welding and fixing on the bottom end of the lower threaded rod (11), the threaded hole (14) is opened at the center of the side surface of the slider (13), the clamping seat (15) is welded on the bottom surface of the slider (13), and the positive The reverse threaded rod (16) is connected with the slider (13) through the threaded hole (14), the knob (17) is arranged on the outer end of the positive and reverse threaded rod (16), and the center of the upper end of the base (18) is provided with a A card slot (19) is provided, and the slider (13) is placed in the card slot (19) through the card seat (15) to connect with the base (18).

2 . The device according to claim 1 , characterized in that: there are several non-damaged vascular clamps (1), and the rotating splints (2) of the non-damaged vascular clamp (1) and The occlusal parts of the fixed splint (4) are all non-damaged structures without ribs or patterns on the inner side.

3. An isolated limb vascular anastomosis device according to claim 1, characterized in that: the end of the fixed splint (4) is connected with the sleeve shaft by a universal joint, and is equipped with a fixed locking structure, which can be used in Rotate in different directions up, down, left and right within a certain angle.

4. An isolated limb vascular anastomosis device according to claim 1, characterized in that: the positioning rod (12) is placed in the limit hole (9), and the positioning rod (12) is a square straight rod structure.

5. An anastomosis device for isolated limbs according to claim 1, characterized in that: the positive and negative threaded rods (16) pass through the sliding block (13), and the positive and negative threaded rods (16) are connected to the sliding block (16). The block (13) is threadedly connected through the threaded hole (14).

6. An isolated limb vascular anastomosis device according to claim 1, characterized in that: the clip seat (15) is clamped and placed in the clip slot (19), and the slider (13) is connected to the base ( 18) The card seat (15) and the card slot (19) are connected in a chute-like manner.