CN113558696B - Vascular anastomat for kidney transplantation operation - Google Patents

Vascular anastomat for kidney transplantation operation Download PDF

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Publication number
CN113558696B
CN113558696B CN202110773094.6A CN202110773094A CN113558696B CN 113558696 B CN113558696 B CN 113558696B CN 202110773094 A CN202110773094 A CN 202110773094A CN 113558696 B CN113558696 B CN 113558696B
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China
Prior art keywords
tube
outer tube
inner tube
main body
inner pipe
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CN202110773094.6A
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Chinese (zh)
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CN113558696A (en
Inventor
王俊鹏
李鑫
闫天中
武小强
曹广辉
王志为
杨中南
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Henan Provincial Peoples Hospital
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Henan Provincial Peoples Hospital
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2/064—Blood vessels with special features to facilitate anastomotic coupling
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B2017/1107—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis for blood vessels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/0004—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof bioabsorbable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol

Abstract

The invention belongs to the technical field of medical appliances and discloses a vascular anastomat for kidney transplantation operation, wherein an inner tube main body comprises a left inner tube, a fixed tooth fixedly connected with the left inner tube is arranged on the left inner tube, a middle tube fixedly connected with the left inner tube is arranged on the left inner tube, a right inner tube fixedly connected with the right inner tube is arranged on the middle tube, fixed teeth fixedly connected with the right inner tube are arranged on the right inner tube, and hollow grids are arranged on the left inner tube, the middle tube and the right inner tube.

Description

Vascular anastomat for kidney transplantation operation
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to a blood vessel anastomat for kidney transplantation operation.
Background
The vascular anastomosis technology is the basis of microsurgery and whole surgery, and the ideal vascular anastomosis method is easy to master, simple and convenient to operate, short in anastomosis time and less in vascular injury. The current vascular anastomosis technology mainly comprises a suture anastomosis technology, a vascular mechanical anastomosis technology and a vascular adhesion technology. At present, the suture anastomosis technology and the mechanical anastomosis technology are commonly used clinically. Although suture anastomosis techniques are the standard method of anastomosis of blood vessels currently accepted, there are still some problems: the operation is complicated, the operation time is long, the skill requirement on doctors is high, the operation key is difficult to master in a short time without training, and meanwhile, the operation quality is easily influenced by psychological and physiological fluctuation of the doctors. Exposure of the suture to the blood vessel may interfere with normal blood flow, inversion of the stoma, etc., and may increase the risk of thrombus formation. The clinical vascular anastomat applied at home and abroad can overcome the serious defects of complex operation, long anastomosis time, intima injury and the like of the traditional vascular anastomosis method. But the non-absorbable needle ring influences the normal systolic and diastolic physiological functions of the blood vessel at the anastomotic stoma, thereby limiting the growth of the blood vessel, and is not suitable for underage patients.
Disclosure of Invention
The invention aims to solve a plurality of problems encountered in the background art, thereby providing an inner tube main body made of shape memory materials, wherein a left inner tube and a right inner tube are expanded at the phase transition temperature, a middle tube is contracted at the phase transition temperature, and blood vessels on two sides are attached to each other.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a kidney transplantation operation is with vascular anastomat, includes the inner tube main part, the inner tube main part includes left inner tube, is equipped with rather than fixed connection's fixed tooth on the left inner tube, is equipped with rather than fixed connection's well pipe on the left inner tube, is equipped with rather than fixed connection's right inner tube on the well pipe, is equipped with rather than fixed connection's fixed tooth on the right inner tube, be equipped with the fretwork net on left inner tube, well pipe and the right inner tube.
Preferably, the outer surface of the inner pipe main body is provided with a reinforcing layer, and the inner surface of the inner pipe main body is provided with an anticoagulation layer.
Preferably, the inner tube body is provided with a blood vessel shear, the blood vessel shear comprises a left shear and a right shear, one end of the left shear is provided with an annular finger ring, and the other end of the left shear is provided with a shear part.
Preferably, the shearing part comprises a ring shear, a first shearing part is arranged on the inner wall of the ring shear, a shearing joint is arranged on the ring shear, a second shearing part which is fixedly connected with the right shear and matched with the shearing joint is arranged on the shearing joint, and a collecting box is arranged on the ring shear.
Preferably, be equipped with rather than matched with outer tube in the inner tube main part, the outer tube includes left outer tube and right outer tube, is equipped with rather than fixed connection solid fixed ring on the left outer tube, is equipped with staple and fixed orifices on the left outer tube, be equipped with on the right outer tube with left outer tube matched with staple and fixed orifices are equipped with the piece of allocation on the outer tube.
Preferably, an outer sleeve is arranged on the outer tube.
The invention has the beneficial effects that through the inner tube main body made of the memory deformation degradable material, the left inner tube and the right inner tube are expanded at the phase transition temperature, the volume of the middle tube is reduced at the phase transition temperature of 28-37 ℃, the invention can cut blood vessels through the vascular shears so that the cut left and right blood vessels are flush, the vascular anastomosis is facilitated, and meanwhile, the cut blood vessels are collected by the collecting box of the cutting part to prevent falling in the body.
Drawings
Fig. 1 is a schematic view of the main body of the inner tube of the present invention.
Fig. 2 is a cross-sectional view of the inner tube body of the present invention.
FIG. 3 is a schematic view of the wall of the inner tube body of the present invention.
Fig. 4 is a schematic view of the vascular shears of the present invention.
Fig. 5 is a schematic view of a shear section of the present invention.
Fig. 6 is a schematic view of an outer tube of the present invention.
Fig. 7 is a schematic view of an outer sleeve of the present invention.
Fig. 8 is a schematic view of the inner tube body of the present invention.
In the figure: the inner tube main body 1, the left inner tube 11, the fixing teeth 12, the middle tube 13, the right inner tube 14, the reinforcing layer 15, the anticoagulation layer 16, the vascular shears 2, the left shears 21, the right shears 22, the shears 23, the ring shears 231, the first shears 232, the collection box 233, the shear slit 234, the second shears 235, the outer tube 3, the left outer tube 31, the fixing ring 32, the right outer tube 33, the fixing nail 34, the coordination block 36, and the outer tube 4.
Detailed Description
For a better understanding of the present invention, reference will be made to the following description of specific examples.
The following describes the embodiments of the present invention further with reference to the drawings.
Example 1
The vascular anastomat for kidney transplantation operation shown in fig. 1-3 comprises an inner tube main body 1, wherein the inner tube main body 1 comprises a left inner tube 11, a fixed tooth 12 fixedly connected with the left inner tube 11 is arranged on the left inner tube 11, a middle tube 13 fixedly connected with the left inner tube 11 is arranged on the left inner tube 11, a right inner tube 14 fixedly connected with the middle tube 13 is arranged on the middle tube 13, a fixed tooth 12 fixedly connected with the right inner tube 14 is arranged on the right inner tube 14, and hollow grids are arranged on the left inner tube 11, the middle tube 13 and the right inner tube 14; the outer surface of the inner pipe main body 1 is provided with a reinforcing layer 15, and the inner surface of the inner pipe main body 1 is provided with an anticoagulation layer 16.
The inner membranes of the left and right blood vessels are everted and then wrapped on the fixing teeth 12 on the left and right inner pipes 11 and 14, the left and right inner pipes 11 and 14 are made of multi-block poly (lipo-urethane) materials, the phase transition temperature is 38-50 degrees, for example, multi-block polyurethane, the middle pipe 13 is made of poly L-lactic acid materials by compression molding, then the inner pipe main body is washed by warm water, the left and right inner pipes 11 and 14 are deformed and expanded to prop up the blood vessels for fixing the blood vessels, and then the middle pipe 13 is contracted to shrink the left and right inner pipes 11 and 14 together with the fixed blood vessels, so that the blood vessels at two sides are tightly attached to prevent seepage.
As shown in fig. 4 to 8, the inner tube body 1 is provided with a blood vessel cutter 2, the blood vessel cutter 2 comprises a left cutter 21 and a right cutter 22, one end of the left cutter 21 is provided with an annular finger ring, and one end of the left cutter 21 is provided with a cutter portion 23.
The shearing part 23 comprises a ring shear 231, a first shearing part 232 is arranged on the inner wall of the ring shear 231, a shearing slit 234 is arranged on the ring shear 231, a second shearing part 235 which is fixedly connected with the right shear 22 and matched with the shearing slit 234 is arranged on the shearing slit 234, and a collecting box 233 is arranged on the ring shear 231.
The inner pipe main body 1 is provided with an outer pipe 3 matched with the inner pipe main body, the outer pipe 3 comprises a left outer pipe 31 and a right outer pipe 33, the left outer pipe 31 is provided with a fixing ring 32 fixedly connected with the left outer pipe 31, the left outer pipe 31 is provided with a fixing nail 34 and a fixing hole 35, the right outer pipe 33 is provided with a fixing nail 34 and a fixing hole 35 matched with the left outer pipe 31, and the outer pipe 3 is provided with a matching block 36; the outer tube 3 is provided with an outer tube 4.
The outer sleeve 4 is made of the same material as the middle tube 13, the vascular interface is sheared through the shearing part 23 to enable the ports at two ends of the anastomosed blood vessel to be flush, gaps are avoided, the sheared blood vessel falls into the collecting box 233, the outer sleeve 4 is sleeved on the left blood vessel or the right blood vessel, the sheared blood vessel wall is turned outwards, the left outer tube 31 and the right outer tube 33 of the outer tube 3 are sleeved on the left blood vessel and the right blood vessel respectively, the blood vessel is fixed on the fixing nails 34 of the left outer tube 31 and the right outer tube 33, the inner tube main body 1 is placed into the left blood vessel and the right blood vessel, the left outer tube 31 and the right outer tube 33 are placed into the fixing holes 35 of the right outer tube 33 through the positioning blocks 36, the fixing nails 34 of the right outer tube 33 are placed into the fixing holes 35 of the left outer tube 31, the outer tube 4 is wrapped on the outer tube 3, warm water is used for flushing to enable the left inner tube 11 and the right inner tube 14 of the inner tube main body 1 to deform and expand, the warm water is removed to be contracted when the temperature is lowered to the temperature, the inner tube main body 13 and the outer tube 4 shrink, the outer tube main body is contracted, the main body 3 and the elastic tube main body and the elastic body is tightly pulled and the elastic body is tightly formed by stretching the elastic body, and the elastic body is tightly pulled and the elastic body is formed by stretching the stretching tissue, and the elastic body is tightly formed around the stretching opening is prevented.
The foregoing description of the preferred embodiments of the present invention is provided for illustration only and is not to be construed as limiting the scope of the invention, and it should be understood that variations and modifications can be made by those skilled in the art without departing from the spirit of the invention.

Claims (1)

1. The vascular anastomat for the kidney transplantation operation comprises an inner tube main body (1), and is characterized in that: the inner pipe main body (1) comprises a left inner pipe (11), a fixed tooth (12) fixedly connected with the left inner pipe (11) is arranged on the left inner pipe (11), a middle pipe (13) fixedly connected with the left inner pipe is arranged on the left inner pipe (11), a right inner pipe (14) fixedly connected with the middle pipe is arranged on the middle pipe (13), a fixed tooth (12) fixedly connected with the right inner pipe is arranged on the right inner pipe (14), and hollow grids are arranged on the left inner pipe (11), the middle pipe (13) and the right inner pipe (14); the vascular scissors (2) are arranged on the inner tube main body (1), the vascular scissors (2) comprise left scissors (21) and right scissors (22), one end of the left scissors (21) is provided with an annular finger ring, and the other end of the left scissors (21) is provided with a shearing part (23); the shearing part (23) comprises a ring shear (231), a first shearing part (232) is arranged on the inner wall of the ring shear (231), a shearing slit (234) is arranged on the ring shear (231), a second shearing part (235) which is fixedly connected with the right shear (22) and matched with the shearing slit (234) is arranged on the shearing slit (234), and a collecting box (233) is arranged on the ring shear (231); the inner tube main body (1) is provided with an outer tube (3) matched with the inner tube main body, the outer tube (3) comprises a left outer tube (31) and a right outer tube (33), the left outer tube (31) is provided with a fixing ring (32) fixedly connected with the left outer tube, the left outer tube (31) is provided with a fixing nail (34) and a fixing hole (35), the right outer tube (33) is provided with a fixing nail (34) and a fixing hole (35) matched with the left outer tube (31), the outer tube (3) is provided with a positioning block (36), the outer tube (3) is provided with an outer tube (4), and the outer tube (4) is made of the same material as the middle tube (13); the outer surface of the inner pipe main body (1) is provided with a reinforcing layer (15), and the inner surface of the inner pipe main body (1) is provided with an anticoagulation layer (16); the left inner tube (11) and the right inner tube (14) are made of multi-block polyurethane materials, and the middle tube (13) is made of poly-L-lactic acid materials.
CN202110773094.6A 2021-07-08 2021-07-08 Vascular anastomat for kidney transplantation operation Active CN113558696B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110773094.6A CN113558696B (en) 2021-07-08 2021-07-08 Vascular anastomat for kidney transplantation operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110773094.6A CN113558696B (en) 2021-07-08 2021-07-08 Vascular anastomat for kidney transplantation operation

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CN113558696A CN113558696A (en) 2021-10-29
CN113558696B true CN113558696B (en) 2023-05-16

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011110262A (en) * 2009-11-27 2011-06-09 Kawasumi Lab Inc Tubular tissue anastomotic instrument
CN103709386A (en) * 2012-10-09 2014-04-09 上海微创医疗器械（集团）有限公司 Modified polylactic acid degradable stent and preparation method thereof
CN106333767A (en) * 2016-10-10 2017-01-18 戚悠飞 Bracket type vascular anastomosis device
CN107088079A (en) * 2017-05-27 2017-08-25 上海长海医院 Biodegradable vascular anastomosis ring/wheel and its Special surgical instrument
CN112155625A (en) * 2020-08-31 2021-01-01 广东工业大学 Medicine-carrying degradable blood vessel anastomat
CN112998795A (en) * 2021-04-22 2021-06-22 河北新泉医疗科技有限公司 Degradable micro-blood vessel anastomat

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CN85106639B (en) * 1985-09-03 1988-08-03 第三军医大学野战外科研究所 Instrument for blood vessel anastomosis
US5755778A (en) * 1996-10-16 1998-05-26 Nitinol Medical Technologies, Inc. Anastomosis device
WO2015191859A2 (en) * 2014-06-13 2015-12-17 The Regents Of The University Of California Sutureless anastomosis device
WO2018194526A1 (en) * 2017-04-19 2018-10-25 Tueysuez Mehmet Erin A scissors having pouch-like container used at aortic valve surgery
CN107874801A (en) * 2017-11-01 2018-04-06 杨良慧 Blood vessel anastomat
KR102224938B1 (en) * 2018-05-31 2021-03-09 주식회사 퓨처바이오웍스 Vascular anastomosis device containing biodegradable shape memory polymer film and stent
CN209220430U (en) * 2018-08-21 2019-08-09 遵义医学院附属医院 Microvascular end-to-side anastomosis Special scissors
CN211187402U (en) * 2019-09-20 2020-08-07 遂宁市中心医院 Blood vessel connecting device
CN110811728A (en) * 2019-12-11 2020-02-21 西安交通大学医学院第一附属医院 Two-end clamping type blood vessel anastomosis device
CN111904517B (en) * 2020-09-25 2022-08-23 陈情忠 Blood vessel anastomat

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011110262A (en) * 2009-11-27 2011-06-09 Kawasumi Lab Inc Tubular tissue anastomotic instrument
CN103709386A (en) * 2012-10-09 2014-04-09 上海微创医疗器械（集团）有限公司 Modified polylactic acid degradable stent and preparation method thereof
CN106333767A (en) * 2016-10-10 2017-01-18 戚悠飞 Bracket type vascular anastomosis device
CN107088079A (en) * 2017-05-27 2017-08-25 上海长海医院 Biodegradable vascular anastomosis ring/wheel and its Special surgical instrument
CN112155625A (en) * 2020-08-31 2021-01-01 广东工业大学 Medicine-carrying degradable blood vessel anastomat
CN112998795A (en) * 2021-04-22 2021-06-22 河北新泉医疗科技有限公司 Degradable micro-blood vessel anastomat

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