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Means used for blood vessel prosthesis and reconstruction

A reconstructor and blood vessel technology, applied in surgical instruments, medical science, surgery, etc., can solve the problems of single clip shape, simple and time-consuming operation, blood oozing, etc., and achieve the effect of preventing avulsion and dispersing pressure.

Inactive Publication Date: 2007-04-18
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its main technical feature is that the memory titanium alloy C-shaped vascular clip clamps the wound edge of the blood vessel, the operation is simple and time-consuming, it is non-penetrating and non-invasive, the closed edge of the anastomotic stoma is not permanent, and it is flexible and changeable, suitable for various vascular reconstructions. Similar to closed anastomosis operation, but the C-shaped memory titanium clip is fixed by combined force, the clip shape is single, and it cannot be closed reliably for thick-walled or sclerotic blood vessels. During the operation, 3 to 4 stitches must be hand-sewed in advance as auxiliary traction lines, and when clipping An assistant must cooperate with the traction. In addition, VCS is used for upper clipping. The distance between the clips of the closing clips can be visually checked by the surgeon. It cannot be uniform, standardized, and accurate, and it is easy to cause bleeding.

Method used

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  • Means used for blood vessel prosthesis and reconstruction
  • Means used for blood vessel prosthesis and reconstruction
  • Means used for blood vessel prosthesis and reconstruction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1. When performing vessel end-to-end anastomosis reconstruction, as shown in FIG. 9 , firstly, according to the general principle of vessel anastomosis, two sections of blood vessels (38) are trimmed to match the size of the anastomotic edge. According to the outer diameter of the anastomotic edge of the two vessels, select a pair of cylindrical vessel eversion adapters (1) of appropriate size. For example, if the outer diameter of the anastomotic edge is 2 mm, choose a cylindrical vessel with an outer diameter of 2.2 mm in the small group. Turn out the coupler (1). Open the two half-rings (6) of a pair of cylindrical blood vessel valgus abutment device (1) and put them into the stump of a blood vessel (38) to be anastomosed, straighten out the direction of the blood vessel (38), and close the two half rings Make to embrace the blood vessel (38) segment to be anastomosed. Hold a pair of handles (5) in one hand, clamp the edge of the broken end of the blood v...

Embodiment 2

[0038] Embodiment 2. When carrying out end-to-side anastomotic reconstruction of blood vessels, as shown in Figure 11, select a pair of ring-shaped vessel eversion abutment devices (1) of suitable size according to the external dimensions of the anastomotic edges of two sections of blood vessels, for example, If the outer diameter of the vascular anastomotic edge is 2 mm, a pair of circular vessel eversion abutment devices (1) with an outer diameter of 2.2 mm in the small group are selected. The operation process is the same as that of the cylindrical valgus valgus coupler (1). Note that the two pairs of 4 handles (5) held by the hand must first be fitted with each other as shown in the D-D section in Figure 11. Select the toothed U-shaped closing clip (3) to clip and close the edge of the everted vessel (39). The clamping edge distance requires the same standard as that of the cylindrical vessel eversion coupler (1). The error correction operation is the same as the error co...

Embodiment 3

[0039] Embodiment 3. When carrying out blood vessel repairing and forming, as shown in Figure 13, earlier measure blood vessel (38) wound internal diameter with measuring tool, patch (40) is trimmed into the elongate equiangular octagon patch slightly wider than blood vessel wound. slices (40). The major axis of the elongated equiangular octagon patch (40) is slightly longer than the inner diameter of the major axis of the blood vessel wound. According to the inner diameter of the blood vessel wound, select a pair of frame-shaped vessel eversion coupler (1) of suitable size. 1). Hold the stainless steel wing (10) in hand and slide left and right along the round rod (12), so that the distance between the two halves of the frame-shaped vascular valgus coupler (1) is slightly larger than the inner diameter of the long axis of the blood vessel wound, hold the stainless steel wing (10) in one hand, Use the other hand to clamp the edge of the broken end of the blood vessel with va...

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Abstract

A device for repairing and reshaping blood vessel is composed of a blood vessel flanging-butt connecting unit for two segments of blood vessel, a U-shaped closing clamp, for clamping the flanged edges of said two segments of blood vessel to be butt connected, a closing clamp releasing unit for releasing said U-shaped closing clamp to said flanged edges, and a pair of clamp detaching pliers for detaching the error clamp.

Description

1. Technical field [0001] The present invention relates to surgical medical instruments, in particular to a set of non-penetrating blood vessel eversion clip edge closure devices, ie, blood vessel repair and reconstruction devices, used in blood vessel repair and reconstruction operations. 2. Technical background [0002] Vascular repair and reconstruction surgery mainly involves various anastomosis and repair of blood vessels. The operation methods mainly fall into the following categories: manual suture method, and special instrument anastomosis method. Manual suturing has the advantages of simple tools, classic and mature techniques, and a wide range of applications. However, suturing skills are extremely demanding for doctors. , It is also impossible to make no mistakes in every operation. In large-scale vascular surgery, doctors spend a lot of time and energy on vascular repair and anastomosis, and the repair and anastomosis time directly determines the total operatio...

Claims

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Application Information

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IPC IPC(8): A61B17/11A61L17/10
Inventor 郑晓兵刘长建陶鹏德
Owner NANJING UNIV
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