CN111870391A

CN111870391A - Artificial blood vessel ring constriction device

Info

Publication number: CN111870391A
Application number: CN202010673804.3A
Authority: CN
Inventors: 赵龙; 杨文宇
Original assignee: Ningbo Huamei Hospital University of CAS
Current assignee: Ningbo Huamei Hospital University of CAS
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2020-11-03

Abstract

The invention discloses an artificial blood vessel ring constriction device, which comprises a hinge ring, wherein a plurality of groups of connecting rods are hinged on the hinge ring, one end, away from the hinge ring, of each connecting rod is fixedly provided with a metal plate for expanding an artificial blood vessel, the metal plates are parallel to the axial lead of the hinge ring, the hinge ring is provided with a contraction device for expanding the plurality of groups of metal plates, and the artificial blood vessel ring constriction device can expand the metal plates on a plurality of surfaces at the same time through the contraction device, so that the blood vessel can be expanded by the metal plates, the operation is simple, and certain efficiency can be improved.

Description

Artificial blood vessel ring constriction device

Technical Field

The invention relates to the technical field of medical instruments, in particular to an artificial blood vessel ring contraction device.

Background

When the aortic dissection is treated by the great cardiac vascular surgery, a section of artificial blood vessel needs to be replaced, and the diameter of the artificial blood vessel is matched with the diameter of the blood vessel of a human body. Because the blood vessels are often diseased, causing the tissues to be fragile, manual anastomosis requires a high suturing technique. A commonly used vascular anastomosis technique is the "sandwich" technique, i.e.: the external layer is felt sheet, the middle blood vessel is self blood vessel, and the internal layer is artificial blood vessel. To facilitate anastomosis, it is often necessary to invert the prosthesis inwardly to fit into the native vessel, which is easily done with a straight vessel, but in the case of a bifurcated prosthesis with 4, inversion inwardly is substantially impossible. The direct use of the non-overturned 4-branch artificial blood vessel and the blood vessel of the patient for sandwich anastomosis not only needs more anastomosis time, but also has unsatisfactory anastomosis effect.

At present, the mainstream method is that straight blood vessels are turned inwards for anastomosis, and 4-branch blood vessels are directly anastomosed, so that more anastomosis time is needed, and the anastomosis effect is not satisfactory, therefore, an artificial blood vessel ring contraction device is provided.

Disclosure of Invention

The present invention is directed to an artificial blood vessel constriction device, which solves the above problems of the background art.

In order to achieve the purpose, the invention provides the following technical scheme: artificial blood vessel ring contracts ware, including the articulated ring, articulated on the articulated ring have the multiunit connecting rod, the connecting rod is kept away from the one end of articulated ring is fixed with the metal sheet that is used for strutting the artificial blood vessel, just the metal sheet with the axial lead of articulated ring is parallel, the articulated ring is provided with the multiunit the metal sheet carries out open constriction device.

Preferably, the retractor comprises a hinge piece fixed on the connecting rod, folding rods hinged on the hinge piece, and a hinge plate for hinging the ends of the multiple groups of folding rods away from the hinge piece together, a sliding rod is inserted on the hinge ring in a sliding manner, one end of the sliding rod penetrates through the hinge ring and is fixedly connected with one side of the hinge plate, and an elastic element is fixed between the hinge ring and the hinge plate.

Preferably, a handle is fixed at one end of the sliding rod, which is far away from the hinged plate, and a pushing device capable of driving the hinged ring to slide on the sliding rod is installed on the handle.

Preferably, a sliding groove is formed in the sliding rod, the pushing device comprises a hinged groove formed in the handle, a hinged shaft is connected to the hinged groove in a rotating mode, a vertical rod is fixed on the hinged shaft, an arc-shaped frame is fixed on one side of the top of the vertical rod, and the free end of the arc-shaped frame penetrates through the sliding groove and is in sliding connection with the groove wall of the sliding groove.

Preferably, a pressing plate is fixed on the vertical rod and is convenient for the manual rotation of the vertical plate, so that the arc-shaped plate drives the hinge rod to slide on the sliding rod.

Preferably, the pressing plate is provided with anti-slip lines, so that the friction force between the pressing plate and an operator is increased.

Preferably, one side of the handle, which is far away from the hinge groove, is fixed with a support ring which is convenient for an operator to support, so that the handle is convenient to support.

Preferably, the elastic part adopts an annular spring which is sleeved on the sliding rod, so that the resetting work can be effectively carried out.

Compared with the prior art, the invention has the beneficial effects that:

the invention can simultaneously open the metal plates on a plurality of surfaces through the contraction device, namely, the metal plates can expand the blood vessel, the operation is simple, and certain efficiency can be improved.

Drawings

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

FIG. 2 is a schematic view of another overall orientation structure of the present invention;

FIG. 3 is an enlarged view of area A of FIG. 2;

FIG. 4 is a schematic front view of the present invention;

FIG. 5 is a schematic side view of the present invention.

In the figure: 1-a hinge ring; 2-a connecting rod; 3-a metal plate; 4-a shrinking device; 5-a hinge member; 6-folding the rod; 7-a hinged plate; 8-a slide bar; 9-an elastic member; 10-a handle; 11-a pushing device; 12-a sliding groove; 13-a hinge recess; 14-a jointed shaft; 15-vertical rod; 16-an arc-shaped frame; 17-pressing plate; 18-anti-skid lines; 19-a support ring; 20-ring spring.

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. 1-5, the present invention provides the following technical solutions: artificial blood vessel ring contracts ware, including articulated ring 1, articulated on the articulated ring 1 have multiunit connecting rod 2, connecting rod 2 keeps away from the one end of articulated ring 1 is fixed with the metal sheet 3 that is used for strutting the artificial blood vessel, just metal sheet 3 with the axial lead of articulated ring 1 is parallel, articulated ring 1 is provided with the multiunit metal sheet 3 carries out open constriction device 4.

Through inserting multiunit metal sheet 3 in the blood vessel, eight can be preferred to metal sheet 3 here, can guarantee that every part of blood vessel can evenly open, mainly expandes connecting rod 2 through the telescoping device, because every group connecting rod 2 corresponds a set of metal sheet 3, and the expansion of every group connecting rod 2 all is gone on simultaneously, so can open eight group metal sheets 3 simultaneously through the telescoping device.

The retractor 4 comprises a hinge piece 5 fixed on the connecting rod 2, folding rods 6 hinged on the hinge piece 5 and a hinge plate 7 for hinging the ends of the multiple groups of folding rods 6 away from the hinge piece 5 together, a sliding rod 8 is inserted on the hinge ring 1 in a sliding manner, one end of the sliding rod 8 penetrates through the hinge ring 1 and is fixedly connected with one side of the hinge plate 7, and an elastic element 9 is fixed between the hinge ring 1 and the hinge plate 7.

A handle 10 is fixed at one end of the sliding rod 8 far away from the hinged plate 7, and a pushing device 11 capable of driving the hinged ring 1 to slide on the sliding rod 8 is installed on the handle 10.

The sliding rod 8 is provided with a sliding groove 12, the pushing device 11 comprises a hinged groove 13 arranged on the handle 10, a hinged shaft 14 is rotatably connected in the hinged groove 13, a vertical rod 15 is fixed on the hinged shaft 14, an arc-shaped frame 16 is fixed on one side of the top of the vertical rod 15, and the free end of the arc-shaped frame 16 penetrates through the sliding groove 12 and is in sliding connection with the groove wall of the sliding groove 12.

Here, in order to ensure the resetting of the eight groups of metal plates 3, that is, under normal conditions, the circle center of the eight groups of metal plates 3 is located on the same horizontal line with the hinge ring 1, a torsion spring is arranged in the hinge groove 13, that is, when the arc-shaped rod pushes the hinge ring 1 to move to a certain position on the sliding rod 8, the blood vessel is open, and when the arc-shaped rod is not needed, the vertical rod 15 can be restored to the vertical state through the elastic member 9 and the reset spring.

A pressing plate 17 is fixed on the vertical rod 15.

The pressing plate 17 is provided with anti-skid grains 18.

A support ring 19 for supporting an operator is fixed to a side of the handle 10 away from the hinge recess 13.

The elastic piece 9 adopts an annular spring 20, and the annular spring 20 is sleeved on the sliding rod 8.

The working principle is further explained, firstly, the initial state of the eight groups of metal plates 3 is parallel to the axial direction of the hinge ring 1, i.e. the side view of the eight groups of metal plates 3 is a circle and is concentric with the center of the hinge ring 1, then the metal plates 3 are inserted into the blood vessel, the pressing plate 17 is pressed manually, the pressing plate 17 is positioned at one end of the handle 10 and rotates in the hinge groove 13 through the hinge shaft 14, the vertical rod 15 drives the arc-shaped frame 16 to slide in the slide groove 12, the arc-shaped frame 16 can adopt a structure similar to a ring, the specific structure can refer to the description drawing, the arc-shaped frame 16 rotates to push the hinge ring 1 to move on the slide rod 8, the hinge ring 1 presses the ring spring 20, and because the hinge plate 7 is hinged with the connecting rod 2 through the folding rod 6, and because each group of folding rods 6 is correspondingly hinged with one group of connecting rods 2, therefore, when the eight groups of folding rods 6 are folded, the eight groups of connecting rods 2 can be driven to open at the same time, and the eight groups of connecting rods 2 open at the same time, namely, the eight groups of metal plates 3 open at the same time.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Artificial blood vessel ring contracts ware, including articulated ring (1), articulated on articulated ring (1) have multiunit connecting rod (2), connecting rod (2) are kept away from the one end of articulated ring (1) is fixed with metal sheet (3) that are used for strutting artificial blood vessel, just metal sheet (3) with the axial lead of articulated ring (1) is parallel, articulated ring (1) is provided with the multiunit metal sheet (3) carry out open constriction device (4).

2. The artificial vascular ring compressor of claim 1, wherein: the retractor device (4) comprises a hinge piece (5) fixed on the connecting rod (2), folding rods (6) hinged on the hinge piece (5) and hinge plates (7) used for hinging the ends of the folding rods (6) away from the hinge piece (5) together;

the hinge joint ring (1) is slidably inserted with a sliding rod (8), one end of the sliding rod (8) penetrates through the hinge joint ring (1) and is fixedly connected with one side of the hinge joint plate (7), and an elastic element (9) is fixed between the hinge joint ring (1) and the hinge joint plate (7).

3. The artificial vascular ring compressor of claim 2, wherein: one end, far away from the hinged plate (7), of the sliding rod (8) is fixedly provided with a handle (10), and a pushing device (11) capable of driving the hinged ring (1) to slide on the sliding rod (8) is mounted on the handle (10).

4. The artificial vascular ring compressor of claim 3, wherein: the novel handle is characterized in that a sliding groove (12) is formed in the sliding rod (8), the pushing device (11) comprises a hinged groove (13) formed in the handle (10), a hinged shaft (14) is connected to the hinged groove (13) in a rotating mode, a vertical rod (15) is fixed on the hinged shaft (14), an arc-shaped frame (16) is fixed on one side of the top of the vertical rod (15), and the free end of the arc-shaped frame (16) penetrates through the sliding groove (12) and is in sliding connection with the groove wall of the sliding groove (12).

5. The artificial vascular ring compressor of claim 4, wherein: and a pressing plate (17) is fixed on the vertical rod (15).

6. The artificial vascular ring compressor of claim 5, wherein: the pressing plate (17) is provided with anti-skid grains (18).

7. The artificial vascular ring compressor of claim 6, wherein: a supporting ring (19) which is convenient for an operator to support is fixed on one side of the handle (10) far away from the hinge groove (13).

8. The artificial vascular ring compressor of claim 2, wherein: the elastic piece (9) adopts an annular spring (20), and the annular spring (20) is sleeved on the sliding rod (8).