A stent radial uniform compression tool and its use method

A uniform compression and tool technology, applied in the field of medical devices, can solve the problems of high cost, long cycle, large volume, etc., and achieve the effect of easy use, low risk and simple operation

Active Publication Date: 2020-08-11
乐畅医疗器械(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] 1. The operation of the automatic crimping equipment is complex and bulky, and requires regular equipment calibration and confirmation. The operator needs to be trained to work, and it is not suitable for direct operation by doctors;
[0011] 2. On-site manual crimping equipment and tools need to be sterilized before use, otherwise they cannot meet the sterile requirements of implanted stents. Reusable equipment and tools need to be cleaned and confirmed, which is costly and long-term;
[0012] 3. The structure of the simple crimping tool used in the operating room needs to be improved, and there is a risk of damage to the implant

Method used

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  • A stent radial uniform compression tool and its use method
  • A stent radial uniform compression tool and its use method
  • A stent radial uniform compression tool and its use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Such as Figure 4 As shown, this embodiment provides a uniform radial compression tool for a stent, which is used for uniform radial compression of a single-band short stent.

[0058] Bracket A301 has an outer diameter of 45mm, a length of 10mm, and a minimum crimping diameter of 5mm.

[0059] One end of the fixing box 100 is open, and is mainly used for crimping the short bracket. The cylindrical hollow inner cavity 101 has a diameter of 50mm and a height of 9mm. The tangential groove 104 is 2.5mm long and 7mm wide. The size of the transition groove 103 is the same as that of the tangential groove 104 .

[0060] The first rectangular sheet 201 of the crimping ring 200 is 28 mm long and 9 mm wide, and the length of the distal crimping area is 15.7 mm; the second rectangular sheet 202 is 207 mm long and 5.5 mm wide; the thickness of the crimping ring 200 is 0.1 mm. mm.

[0061] The distal fixing area 2011 of the crimping ring 200 is glued to the inner wall of the cy...

Embodiment 2

[0064] Such as Figure 5 As shown, this embodiment provides a stent radial uniform compression tool, which is used for radial and uniform compression of multi-band long stents.

[0065] Bracket B302 has an outer diameter of 45mm, a single band length of 18mm, a length of 60mm, and a minimum crimping diameter of 5mm.

[0066] Both ends of the fixing box 100 are open, and are mainly used for segmental crimping of long brackets. The cylindrical hollow inner chamber 101 has a diameter of 50mm and a height of 15mm. The tangential groove 104 is 2.5mm long and 12mm wide. The size of the transition groove 103 is the same as that of the tangential groove 104 .

[0067] The first rectangular sheet 201 of the crimping ring 200 is 28mm long and 15mm wide, and the length of the distal crimping area is 15.7mm; the second rectangular sheet 202 is 207mm long and 10mm wide; the thickness of the crimping ring 200 is 0.2mm .

[0068] The distal fixing area 2011 of the crimping ring 200 is g...

Embodiment 3

[0070] Such as Figure 5 As shown, this embodiment provides a stent radial uniform compression tool, which is used for radial and uniform compression of multi-band long stents.

[0071] This embodiment is basically the same as Embodiment 2, the difference is that the bracket radial uniform compression tool consists of two fixed boxes concentrically connected in series to form a bracket box group, and there are two sets of crimping rings, which can crimp two bands of the bracket at one time, Because the compressed length of the stent is doubled, the stent is easier to push into the delivery sheath and is also twice as efficient.

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PUM

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Abstract

The invention provides a radial and uniform stent compression tool and a use method thereof. The radial and uniform stent compression tool comprises a fixing box and a compressing-holding ring. The fixing box comprises a hollow cylinder provided with a tangential groove, the outer surface of the cylinder is provided with a fixing bayonet, the compressing-holding ring consists of a first rectangular sheet and a second rectangular sheet through connection, the first rectangular sheet is provided with a diameter control groove, the tail end of the second rectangular sheet can penetrate through the diameter control groove and freely slide, the second rectangular sheet is provided with multiple fixing grooves arranged linearly, the end of the first rectangular sheet is fixed to the inner wall of the fixing box, the diameter control groove is located at the center of the tangential groove, the tail end of the second rectangular sheet sequentially penetrates through the diameter control groove and the tangential groove, the compressing-holding ring forms a cylindrical ring with a uniform and radial compression force by pulling the tail end of the second rectangular sheet, and the diameterof the compressing-holding ring is locked through cooperation of the fixing bayonet formed in the fixing box and the fixing groove formed in the second rectangular sheet. The radial and uniform stentcompression tool is low in cost, is disposable and is already sterilized before use, and the risk of stent coating or sharp corner damage in the compressing-holding process does not exist.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a bracket radial uniform compression tool and a method for using the same. Background technique [0002] The word "bracket" comes from the English "Scaffold", translated as "scaffold", originally a term in the construction industry, specifically referring to the temporary support erected when building a building, which will be withdrawn as the building is completed Lose. In the medical field, in order to maintain the continuous patency of blood vessels, biliary tract, esophagus and other cavities after surgery, it is usually necessary to implant a cylindrical hollow tube to support and shape the lumen. This is the field of medical devices. The stent in , also known as a "stent". [0003] Stents can be classified in various ways according to function, structure, material, treatment site, implantation method, etc. According to the treatment site, it can be di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/962
CPCA61F2/962
Inventor 余洪猛王丽杨海李天明
Owner 乐畅医疗器械(上海)有限公司
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