CN210541719U

CN210541719U - Developing embolectomy support

Info

Publication number: CN210541719U
Application number: CN201920481888.3U
Authority: CN
Inventors: 孔令涛; 林彦廷; 张新波
Original assignee: Hemu China Biological Engineering Co ltd
Current assignee: Hemu China Biological Engineering Co ltd
Priority date: 2019-04-11
Filing date: 2019-04-11
Publication date: 2020-05-19
Anticipated expiration: 2029-04-11

Abstract

The utility model provides a develop and get and tie support, main part including network structure, the main part includes a plurality of closed net unit, has between the closed net unit to be no less than 2 tie points, is the arm of main part between the adjacent tie point, its characterized in that: be equipped with the breach on being no less than 1 arm, breach department cover has the tubulose development component, the length of tubulose development component on the length direction of arm is greater than the length of breach. The beneficial effects of the utility model are that owing to adopt above-mentioned technical scheme, the development effect of thrombectomy support is good, and the smooth nature on support surface is good, and development component is higher with the stability of being connected between.

Description

Developing embolectomy support

Technical Field

The utility model relates to the technical field of medical equipment, specifically a thrombectomy support with develop function.

Background

The stroke is divided into ischemic stroke and hemorrhagic stroke, wherein the ischemic stroke accounts for 70 to 80 percent. In patients with ischemic stroke, the consequences caused by intracranial large vessel occlusion caused by various reasons are the most serious and have been the difficulty of treatment, and the current treatment methods comprise intravenous drug thrombolysis, arterial drug thrombolysis, intravascular mechanical thrombus removal, combined use of several methods and the like. The artery and vein thrombolysis is a conventional method for treating acute ischemic stroke, but the method has high requirements on a treatment time window, strictly requires that a patient arrives in a hospital to receive related treatment within 3-4.5 hours from illness, has a plurality of limitations on medicines, and has low blood vessel recanalization rate of the acute ischemic stroke caused by the most serious large blood vessel occlusion.

Mechanical arterial thrombectomy devices have gained widespread attention because of the following advantages: rapid recanalization, lower bleeding conversion and a prolonged stroke intervention time window. Has satisfactory clinical effect on the revascularization of acute ischemic stroke caused by the occlusion of large blood vessels.

Mechanical embolectomy devices are generally invisible under X-rays due to the use of materials with multiple physical property requirements, and in order to accurately position the position of the embolectomy device in the blood vessel, it is generally necessary to add an X-ray visible visualization element to the embolectomy stent to assist in positioning.

Patent CN 107080568A discloses a marker attachment of a vascular device, which reserves a plurality of protruding mounting protrusions on a mesh-like stent for mounting a visualization element, and patent CN 207768466U also discloses a full-visualization embolectomy stent and a thrombus extraction device, however, the visualization element has a certain influence on the smoothness of the surface of the embolectomy stent. In addition, the stability of the connection between the developer member and the tampon support needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a thrombectomy support with development function, the smooth nature on support surface is good, and development element is higher with the stability of being connected between.

The technical scheme of the utility model is that:

the utility model discloses an in the scheme, a develop and get and tie support, main part including network structure, the main part includes a plurality of closed net unit, has between the closed net unit and is no less than 2 tie points, is the arm of main part between the adjacent tie point, is no less than 1 and is equipped with the breach on the arm, breach department cover has tubulose development component, tubulose development component is greater than the length of breach in the length direction of arm.

Direct with developing element cover on the arm in this scheme, set up the developing arm or the ring that are used for placing developing element alone in addition in the support main part in comparing prior art, developing bolt support has better wholeness, and developing element can not regard as protruding "foreign matter", and its surface smoothness also can show the improvement. The notch on the arm greatly improves the installation efficiency of the developing element and simplifies the production procedure.

The length direction of the arm refers to the direction from one connection point to the other connection point of the two connection points at the two ends of the arm.

The utility model discloses an in another scheme, develop and get and tie support, main part including network structure, the main part includes a plurality of closed net unit, has between the closed net unit to be no less than 2 tie points, is the arm of main part between the adjacent tie point, is no less than 1 arm on the winding have strip development component.

The developer member is cut into strips and wound around the arm, which gives the developer cartridge holder good integrity as well.

The developing device is characterized in that limiting bulges are arranged at the joints of the two end parts of the developing element and the arm, the limiting bulges comprise limiting bulge near ends close to the end parts of the developing element and limiting bulge far ends far away from the end parts of the developing element in the axis direction of the arm, the length of the limiting bulge near ends in the radial direction of the arm is matched with the outer diameter of the developing element, and the limiting bulge far ends are smoothly connected with the arm. The limiting protrusion and the arm are integrally formed.

The first function of the limiting bulges at the two ends of the developing element is to limit the developing element and prevent the developing element from sliding back and forth on the arm. Second, because the outer diameter of the developer element is greater than the outer diameter of the arm, a smoothly connected developer element can provide a good transition effect between the arm and the developer element, reducing irritation of the relatively sharp end of the developer element to the blood vessel.

In the tubular developing element, the inner walls of the two ends of the developing element are connected with the two end points of the gap through welding or gluing.

In the strip-shaped developing element, two end points of the developing element are connected with the arm through welding or gluing.

The included angle between the extension lines of the arms at the two sides of the notch is 160-175 degrees.

The arms on both sides of the notch are positioned on the same circular arc.

The two sides of the notch form a certain included angle or radian with each other, so that the notch can be better clamped with the tubular developing element, and the connection stability of the developing element and the arm is further enhanced.

The far end of the developing and embolectomy bracket is provided with an end point, and a cap-shaped developing element is sleeved on the end point.

The far end of the developing and bolt-removing support is provided with an end point, a strip-shaped developing element is wound on the arm adjacent to the end point, and one end of the strip-shaped developing element is welded or glued with the end point.

The utility model has the advantages and positive effects that: due to the adoption of the technical scheme, the bolt-removing support has the advantages of good developing effect, good surface smoothness of the support and higher connection stability between the developing elements.

Drawings

FIG. 1 is a schematic structural diagram of the present invention

FIG. 2 is a schematic view of a limiting protrusion A in FIG. 1

FIG. 3 is a cross-sectional view of the developing member at A in FIG. 1

FIG. 4 is a sectional view of a developing member in embodiment 1

FIG. 5 is a sectional view of a developing member in embodiment 2

In the figure:

1. main body 11, arm 2, developing element

3. Spacing protrusion

Detailed Description

Example 1

As shown in figure 1 of the drawings, in which,

the utility model relates to a develop and get and tie support, main part 1 including network structure, main part 1 includes a plurality of closed net unit, has between the closed net unit to be no less than 2 tie points, is the arm 11 of main part between the adjacent tie point, is no less than 1 and is equipped with the breach on the arm 11, breach department cover has tubulose development component 2, tubulose development component 2 is greater than the length of breach in the length direction of arm 11.

Two tip of development component 2 and the junction of arm are equipped with spacing arch 3, and spacing arch 3 sets up on arm 11, spacing arch 3 is including being close to the spacing protruding 3 near-end of 2 tip of development component and the spacing protruding 3 distal end of keeping away from 2 tip of development component on the axis direction of arm 11, and spacing protruding 3 near-end length in the radial direction of arm 11 cooperatees with the external diameter of development component 2, spacing protruding 3 distal end and arm 11 smooth connection.

The inner walls of the two ends of the developing element 2 are connected with the two end points of the gap through welding or adhesive bonding.

The angle between the extension lines of the arms 11 on both sides of the notch is 160-175 deg.

Example 2

The arms 11 on both sides of the gap are located on the same arc.

Example 3

The utility model provides a bolt support is got in development, includes network structure's main part, the main part includes a plurality of closed net unit, has between the closed net unit to be no less than 2 tie points, is the arm 11 of main part between the adjacent tie point, is no less than 1 arm on the winding have strip development component.

The two ends of the developing member are connected to the arms 11 by welding or gluing.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a develop and get and tie support, includes network structure's main part, the main part includes a plurality of closed net unit, has between the closed net unit to be no less than 2 tie points, is the arm of main part between the adjacent tie point, its characterized in that: be equipped with the breach on being no less than 1 arm, breach department cover has the tubulose development component, the length of tubulose development component on the length direction of arm is greater than the length of breach.

2. A developer embolectomy holder according to claim 1, wherein: the developing device is characterized in that limiting bulges are arranged at the joints of the two end parts of the developing element and the arm, the limiting bulges comprise limiting bulge near ends close to the end parts of the developing element and limiting bulge far ends far away from the end parts of the developing element in the axis direction of the arm, the length of the limiting bulge near ends in the radial direction of the arm is matched with the outer diameter of the developing element, and the limiting bulge far ends are smoothly connected with the arm.

3. A developer embolectomy holder according to claim 2, wherein: the inner walls of the two ends of the developing element are connected with the two end points of the gap through welding or adhesive bonding.

4. A developer embolectomy holder according to claim 1, wherein: the included angle between the extension lines of the arms at the two sides of the notch is 160-175 degrees.

5. A developer embolectomy holder according to claim 1, wherein: the arms on both sides of the notch are positioned on the same circular arc.

6. The utility model provides a develop and get and tie support, includes network structure's main part, the main part includes a plurality of closed net unit, has between the closed net unit to be no less than 2 tie points, is the arm of main part between the adjacent tie point, its characterized in that: not less than 1 arm is wound with a strip-shaped developing element.

7. A developer embolectomy holder according to claim 6, wherein: the two end points of the developing element are connected with the arms through welding or gluing.

8. The visualization embolectomy holder of any of claims 1, 4, 6, or 7, wherein: the far end of the developing and embolectomy bracket is provided with an end point, and a cap-shaped developing element is sleeved on the end point.

9. The visualization embolectomy holder of any of claims 1, 4, 6, or 7, wherein: the far end of the developing and bolt-removing support is provided with an end point, a strip-shaped developing element is wound on the arm adjacent to the end point, and one end of the strip-shaped developing element is welded or glued with the end point.