CN115040183A - Urinary surgery is with bladder urethra device that coincide - Google Patents
Urinary surgery is with bladder urethra device that coincide Download PDFInfo
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- CN115040183A CN115040183A CN202210646177.3A CN202210646177A CN115040183A CN 115040183 A CN115040183 A CN 115040183A CN 202210646177 A CN202210646177 A CN 202210646177A CN 115040183 A CN115040183 A CN 115040183A
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- 238000001356 surgical procedure Methods 0.000 title claims abstract description 18
- 210000003708 urethra Anatomy 0.000 title claims abstract description 17
- 230000002485 urinary effect Effects 0.000 title claims description 21
- 230000003872 anastomosis Effects 0.000 claims abstract description 58
- 239000003814 drug Substances 0.000 claims abstract description 31
- 239000004005 microsphere Substances 0.000 claims abstract description 24
- 239000000843 powder Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 229940079593 drug Drugs 0.000 claims description 10
- JVTAAEKCZFNVCJ-REOHCLBHSA-N L-lactic acid Chemical compound C[C@H](O)C(O)=O JVTAAEKCZFNVCJ-REOHCLBHSA-N 0.000 claims description 9
- 229920001432 poly(L-lactide) Polymers 0.000 claims description 9
- 210000001519 tissue Anatomy 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 8
- 238000004108 freeze drying Methods 0.000 claims description 6
- 238000007710 freezing Methods 0.000 claims description 6
- 230000008014 freezing Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 230000015556 catabolic process Effects 0.000 claims description 5
- 238000006731 degradation reaction Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 210000005068 bladder tissue Anatomy 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims 2
- 208000035965 Postoperative Complications Diseases 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 239000000499 gel Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 206010061218 Inflammation Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004054 inflammatory process Effects 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008467 tissue growth Effects 0.000 description 1
- 210000001635 urinary tract Anatomy 0.000 description 1
Images
Classifications
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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
- 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
- A61B17/115—Staplers for performing anastomosis in a single operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00526—Methods of manufacturing
-
- 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
- A61B2017/1132—End-to-end connections
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The invention aims to provide a bladder and urethra anastomotic device for urology surgery, which aims to solve the problem that a non-anastomotic nail type anastomat for bladder and urethra efficient and quick anastomosis is lacked at present and simultaneously postoperative complications are reduced, and comprises the following steps: the device comprises a fixing ring, a medicine microsphere, an anastomosis ring, a first auxiliary fixing component, a second auxiliary fixing component and an anastomosis ring conveying component.
Description
Technical Field
The invention belongs to the technical field of medical instruments for urology surgery, and particularly relates to a bladder and urethra anastomosis device for urology surgery.
Background
For the operation of lower urinary tract reconstruction, the anastomosis of the bladder and the urethra is the key, the anastomosis difficulty is embodied in that an anastomosis opening is positioned at the bottom of a pelvic cavity, the position is deep, the operation space is narrow, the suture technology difficulty is high, the operation time is long, and the anastomosis effect is difficult to guarantee.
The anastomat can shorten the operation time and reduce the difficulty of anastomosis; however, the urethral lumen is small, the broken end of the urethra is short, pressure exists in an anastomotic stoma, and calculi and the like can be induced by the anastomotic nail.
Therefore, it is necessary to develop a non-anastomosis staple and a stapler which can perform anastomosis rapidly and efficiently and reduce the incidence of inflammation and other complications after anastomosis, and the clinical application of the bladder-urethra stapler can be realized early.
Disclosure of Invention
The invention aims to provide a bladder-urethra anastomotic device for urinary surgery, which solves the problem that an anastomat for bladder-urethra efficient and fast anastomosis and reducing postoperative complications of non-anastomotic nails is lacked at present.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a bladder-urethra anastomosis device for urology surgery, comprising: the fixing ring is provided with a fixing needle and an air bag, the fixing needle is vertically fixed on the outer surface of the fixing ring, the air bag is fixed on the inner surface of the fixing ring, the fixing needle contains the medicine microspheres, the fixing needle and the medicine microspheres are supported by degradable materials, the degradation time is 3-7 days, the air bag is inflated to prop open the fixing ring, and the fixing needle on the fixing ring is fixed in a tissue 1-2cm away from the urethral end or the bladder end; the two fixing rings are respectively positioned at the urethral end and the bladder end, the upper surface and the lower surface of the anastomosis ring are provided with an annular groove, the urethral end fixing ring is pulled by the first auxiliary fixing component to be fixed in the groove at the lower surface of the anastomosis ring, the bladder end fixing ring is pushed by the second auxiliary fixing component to be fixed in the groove at the upper surface of the anastomosis ring, and the anastomosis ring is conveyed to the upper part of the urethral end fixing ring through the anastomosis ring conveying component.
Further, the fixed ring still includes: check valve, gasbag pipe, the check valve be located the gasbag on, gasbag pipe one end pass the check valve, one end is connected the air pump.
Furthermore, the three fixed needles are arranged in a group at equal intervals clockwise along the circle center.
Further, the first auxiliary fixing assembly comprises: pull rod, first bulge loop, bracing piece, support bar, side lever, first bulge loop position correspond the fixed ring position of urethra, the pull rod with first bulge loop has the same centre of a circle, first bulge loop with the pull rod fix on the first supplementary fixed subassembly upper surface, first supplementary fixed subassembly lower surface connect the side lever, the side lever has at least three-section articulated together, the pull rod be hollow structure, the bracing piece be located inside the pull rod, the bracing piece with the pull rod the same centre of a circle, the bracing piece connect at least three support bars, the support bar have both ends articulated together at least.
Further, the second auxiliary fixing component comprises: the push rod is positioned on the upper surface of the second auxiliary fixing component, and the second convex ring is positioned on the lower surface of the second auxiliary fixing component and corresponds to the fixing ring at the bladder end.
Further, the anastomotic ring delivery assembly comprises: the clamping device comprises a clamping part, a fixing part and a tightening rod, wherein the tightening rod is connected with the fixing part, and the fixing part is connected with the clamping part.
Further, the preparation method of the medicine microsphere comprises the following steps: the animal bladder tissue is subjected to decellularization treatment to prepare decellularized gel, a PLLA solution with the gel amount being 15% of the total amount is added into the decellularized gel, the solution is placed into liquid nitrogen for quick freezing, then the freeze-drying treatment is carried out, a freeze-dried bracket is ground into powder, the powder is added into a medicine solution for 8 hours, the medicine solution is filtered out, and the temperature of an oven is adjusted to 45 ℃ for drying for 48 hours.
Further, the preparation method of the fixing needle comprises the following steps: dissolving PLLA with the weight percentage of 30% and PCL with the weight percentage of 70%, adding 3-10g of drug microsphere powder, stirring uniformly, and printing and molding by using a 3D printer.
Further, the fixing method of the fixing needle comprises the following steps: preparing a die, and manufacturing a group of three dies according to the arrangement mode of the fixing pins; adding 3-10g of drug microsphere powder after selecting 40% PLLA and 60% PCL solution by weight, uniformly stirring, pouring into a mold, placing the mold in liquid nitrogen for quick freezing, then carrying out freeze drying, taking down the mold, and finishing the preparation.
Furthermore, the fixing ring is made of elastic hard silica gel materials, and the air bag is made of elastic soft silica gel materials.
The invention has the following beneficial effects: the invention discloses an anastomosis device of non-anastomosis nails, which solves the problem of complications caused by the use of anastomosis nails; the degradable fixing needle and the medicine microspheres can avoid the problem of long-term secondary damage to tissues, and meanwhile, the medicine for assisting inflammation diminishing and promoting tissue growth further reduces the occurrence of complications such as inflammation; the anastomosis is carried out from the bladder end, the operation on the weak urethral end is minimum, the damage to the tissues of the urethral end is reduced, and the anastomosis effect is ensured; the air bag can play a supporting role in the earlier stage of action, and after entering the groove, part of air can be added according to actual conditions, so that the air bag has double functions of reinforcement and sealing.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a fixing ring of a bladder-urethra anastomosis device for urinary surgery according to the present invention;
FIG. 2 is a schematic view of a bladder-urethra anastomosis device balloon assembly for urinary surgery in accordance with the present invention;
FIG. 3 is a schematic view of the arrangement of the fixing needles of the cystourethral anastomosis device for urinary surgery according to the present invention;
FIG. 4 is a schematic view of the inside of the fixing needle of the urinary bladder-urethra anastomotic device for urinary surgery;
FIG. 5 is a schematic diagram of the urethral end fixation of the bladder-urethra anastomosis device for urinary surgery of the present invention;
FIG. 6 is a schematic structural view of a first auxiliary fixing component of the bladder-urethra anastomotic device for urinary surgery of the present invention;
FIG. 7 is a schematic diagram of the bladder end fixation of a bladder-urethra anastomosis device for urinary surgery according to the present invention;
fig. 8 is a schematic structural diagram of an anastomotic ring delivery assembly of a bladder-urethra anastomosis device for urinary surgery according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
the device comprises a fixing ring 1, a fixing needle 11, an air bag 12, a one-way valve 13, an air bag tube 14, microspheres 2, an anastomosis ring 3, a groove 31, a first auxiliary fixing component 4, a pull rod 41, a first convex ring 42, a support rod 43, a support bar 44, a side rod 45, a second auxiliary fixing component 5, a push rod 51, a second convex ring 52, an anastomosis ring conveying component 6, a clamping part 61, a fixing part 62 and an elastic rod 63.
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.
Example 1:
a bladder-urethra anastomosis device for urology surgery, comprising: the device comprises a fixing ring 1, a fixing needle 11, an air bag 12, a one-way valve 13, an air bag tube 14, a medicine microsphere 2, an anastomosis ring 3, a groove 31, a first auxiliary fixing component 4, a pull rod 41, a first convex ring 42, a support rod 43, a support bar 44, a side rod 45, a second auxiliary fixing component 5, a push rod 51, a second convex ring 52, an anastomosis ring conveying component 6, a clamping part 61, a fixing part 62 and an elastic rod 63.
The fixing ring 1 includes: fixing needle 11, air bag 12, one-way valve 13 and air bag tube 14. As shown in fig. 3, the fixing needles 11 are vertically fixed on the outer surface of the fixing ring 1 in a circular arrangement mode according to a group of three, the fixing needles rotate 120 degrees clockwise in turn, the annular airbag 12 is fixed on the inner surface of the fixing ring 1, the airbag 12 is provided with a one-way valve 13, the one-way valve 13 is connected with an airbag tube 14, one end of the airbag tube 14 is arranged in the airbag 12 in advance, the other end of the airbag tube 14 is connected with an air pump and used for inflating or deflating, after use, the airbag tube 14 is completely withdrawn, and due to the existence of the one-way valve 13, the air in the airbag 12 is stored.
When the fixing ring 1 is made of elastic hard silica gel materials, the air bag 12 and the air bag tube 14 are made of elastic soft silica gel materials, when the fixing ring is used, the fixing ring is pushed to a specified position, generally located at a 1-2cm position of a urethral port or a bladder port, the direction of the fixing ring is adjusted after the fixing ring reaches the position, the air bag 12 is slowly inflated, the fixing ring 1 is driven to move around after the fixing ring rises, and the fixing needle 11 on the outer surface of the fixing ring 1 penetrates into tissues.
The pushing device of the fixing ring can use the existing holding type actuating device or a self-made pushing device, in order to reduce matched conveying equipment and improve the operation efficiency, the part of the air bag tube 14, which is positioned outside the air bag 12, can be replaced by hard material, and when the pushing device is used, the air bag tube 14 can be directly used for driving the fixing ring 1 to the designated position.
After the fixing ring 1 is propped up by the balloon, the fixing needles 11 on the outer surface of the fixing ring 11 are fixed into the tissue with enough strength, and the tissue in the urethra or the bladder is firmly grabbed on the outer surface of the fixing ring 1. The length of the air bag tube 14 arranged in the air bag 12 is not less than 2cm, so that the air bag tube is prevented from being easily torn out in the process.
The fixing needle 11 is designed into a micro-needle structure, the diameter of the maximum position of the micro-needle is 0.5mm, the adopted rapid degradation material is used for supporting, the rapid degradation material can be completely degraded within 3-7 days, the continuous damage to tissues is avoided, meanwhile, in order to reduce postoperative complications and accelerate the growth and healing of an anastomotic port, the medicine microspheres 2 are added into the fixing needle 11, and the medicine microspheres 2 are also synchronously degraded along with the degradation of the fixing needle 11, so that the medicine is released.
After the fixing ring 1 is used for initially expanding and fixing the urethra port and the bladder port, anastomosis at two ends is performed next, the anastomosis ring 3 is used, the anastomosis ring 3 comprises a groove 31, the groove is annular and is used for containing the fixing ring 1, and the two grooves 31 are respectively located on the upper surface and the lower surface of the anastomosis ring 3.
The fixation ring 1 is fixed in the recess 31 of the anastomotic ring 3 by means of a first fixation assembly 4 and a second fixation assembly 5.
The first fixing member 4 includes: a pull rod 41, a first convex ring 42, a support rod 43, a support bar 44 and a side rod 45; a circle of first convex rings 42 are arranged on the upper surface of the component, the positions of the first convex rings 42 are the same as those of the groove 31, a pull rod 41 is fixed on the upper surface of the component, the pull rod 41 is of a hollow structure, is concentric with the first convex rings 42 and is positioned in the first convex rings 42, and the function of the pull rod is to pull the first fixing component 4 to fix the fixing ring 1 in the groove 31; the supporting rod 43 is positioned inside the pull rod 41 and is concentric, the supporting rod 43, the side rod 45 and the supporting bar 44 are designed to be umbrella-shaped structures, the side rod 43 is provided with multiple sections, five sections are provided in the embodiment, the supporting bar 44 is provided with multiple sections, three sections are provided in the embodiment, two ends are provided in the embodiment, the multiple sections between the supporting bar 44 and the side rod 45 are connected together through hinges, the supporting bar 44 is fixed on the supporting rod 43, the supporting rod 43 can move up and down, when the supporting bar 44 moves downwards, the supporting bar 44 moves outwards to drive the side rod 45 to move outwards until the supporting bar is completely opened; the supporting function is achieved after the opening, the urethral end is opened, the air bag 12 is partially deflated, the fixing ring 1 is placed in the groove 13 through the pulling pull rod 41, the air bag is inflated again at the moment, the fixing ring 1 is completely fixed in the groove 13, the air bag tube 14 is slowly drawn out, the supporting rod 43 moves upwards again, and the first fixing component 4 is removed after the supporting rod 44 and the side rod 45 are retracted.
The second auxiliary fixing assembly 5 includes: the push rod 51 is fixed on the upper surface of the assembly and has the same circle center as the second convex ring 52, the push rod 51 drives the second auxiliary fixing assembly 5 to push the fixing ring 1 at the bladder end downwards into the groove 31 on the upper surface of the anastomosis ring 3 by pushing the push rod 51, the fixing method is the same as the fixing method of the fixing ring 1 at the urethra end, namely, after the air bag 12 is partially deflated, the air bag is fixed into the groove 31 and then inflated, so that the air bag is completely fixed in the groove 31, the air bag tube 14 is slowly drawn out, the second auxiliary fixing device 5 is drawn out, and the anastomosis of the bladder and the urethra is completed at this time.
The diameters of the first convex ring 42 and the second convex ring 52 are slightly smaller than the diameter of the groove 31; the hinged design is used for facilitating the operation of the first fixing component 4 to pass through the fixing ring 1 and be taken down; in order to enhance the fixing effect of the groove 31 on the fixing ring 1, the surface of the groove 31 is provided with an uneven structure.
In order to fully utilize the large space of the bladder end and reduce the damage to the tissues at the urethra end, the present embodiment adopts a transvesical anastomosis method, and certainly, the anastomosis can also be performed through the urethra end.
Example 2:
on the basis of the example 1, the medicine microsphere 2 is a self-made degradable medicine microsphere, and the preparation method of the medicine microsphere is as follows:
the preparation method comprises the steps of carrying out decellularization treatment on animal bladder tissues to prepare decellularized gel, adding a PLLA solution accounting for 15% of the total amount of the gel into the decellularized gel, putting the solution into liquid nitrogen for quick freezing, carrying out freeze-drying treatment, grinding a freeze-dried bracket into powder, adding the powder into a medicine solution for 8 hours, filtering the medicine solution, and adjusting the temperature of an oven to 45 ℃ to bake for 48 hours.
Example 3:
on the basis of the embodiment 1, the fixing needle 11 containing the drug microspheres 2 is a self-made component, the fixing needle is formed by molding through a biocompatible adhesive or together with the fixing ring 1, and the integrally molding manufacturing method includes but is not limited to a mold method and a 3D printing method.
The manufacturing method of the fixing needle 11 comprises the following steps: after dissolving PLLA and 70% PCL in a weight percentage of 30%, adding 3-10g of drug microsphere powder, stirring uniformly, and printing and molding by using a 3D printer, wherein 5g of drug microsphere powder is selected in this embodiment.
Example 4:
the difference from example 3 is that the fixing pins 11 are manufactured by a mold method, a microneedle array mold is manufactured first, the shape of the mold refers to the three groups of the fixing pins 11 in fig. 3, a group mold is manufactured, and a group of fixing pins 11 is manufactured at one time, so that the fixing of the fixing pins 11 is facilitated.
Selecting 40% PLLA and 60% PCL solution by weight, adding 3-10g of drug microsphere powder, 5g of drug microsphere powder, uniformly stirring, pouring into a mold, placing the mold in liquid nitrogen for quick freezing, freeze-drying, taking the mold down, and finishing the preparation.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. A bladder-urethra anastomosis device for urology surgery, comprising: the fixing ring is provided with a fixing needle and an air bag, the fixing needle is vertically fixed on the outer surface of the fixing ring, the air bag is fixed on the inner surface of the fixing ring, the fixing needle contains the medicine microspheres, the fixing needle and the medicine microspheres are supported by degradable materials, the degradation time is 3-7 days, the air bag is inflated to prop open the fixing ring, and the fixing needle on the fixing ring is fixed in a tissue 1-2cm away from the urethral end or the bladder end; the two fixing rings are respectively positioned at the urethral end and the bladder end, the upper surface and the lower surface of the anastomosis ring are provided with an annular groove, the urethral end fixing ring is pulled by the first auxiliary fixing component to be fixed in the groove at the lower surface of the anastomosis ring, the bladder end fixing ring is pushed by the second auxiliary fixing component to be fixed in the groove at the upper surface of the anastomosis ring, and the anastomosis ring is conveyed to the upper part of the urethral end fixing ring through the anastomosis ring conveying component.
2. A urinary surgical bladder-urethra anastomosis device according to claim 1, characterized in that said fixation ring further comprises: check valve, gasbag pipe, the check valve be located the gasbag on, gasbag pipe one end pass the check valve, one end is connected the air pump.
3. The urinary surgical bladder-urethra anastomosis device according to claim 1, wherein the fixation needles are arranged in groups of three, and are arranged in a clockwise order at equal intervals along the center of the circle.
4. A urinary surgical bladder-urethra anastomosis device according to claim 1, wherein said first auxiliary fastening assembly comprises: pull rod, first bulge loop, bracing piece, support bar, side lever, first bulge loop position correspond urethra end fixed ring position, the pull rod with first bulge loop has the same centre of a circle, first bulge loop with the pull rod fix on the first supplementary fixed subassembly upper surface, first supplementary fixed subassembly lower surface connect the side lever, the side lever has at least three sections articulated together, the pull rod be hollow structure, the bracing piece be located inside the pull rod, the bracing piece with the pull rod have the same centre of a circle, the bracing piece connect three at least support bars, the support bar have both ends articulated together at least.
5. A urinary surgical bladder-urethra anastomosis device according to claim 1, wherein said second auxiliary fixation assembly comprises: the push rod is positioned on the upper surface of the second auxiliary fixing component, and the second convex ring is positioned on the lower surface of the second auxiliary fixing component and corresponds to the fixing ring at the bladder end.
6. The urinary surgical bladder-urethra anastomosis device according to claim 1, wherein said anastomosis ring delivery assembly comprises: the clamping device comprises a clamping part, a fixing part and an elastic rod, wherein the elastic rod is connected with the fixing part, and the fixing part is connected with the clamping part.
7. The urinary surgery bladder-urethra anastomosis device according to claim 1, wherein the preparation method of the drug microspheres is: the animal bladder tissue is subjected to decellularization treatment to prepare decellularized gel, a PLLA solution with the gel amount being 15% of the total amount is added into the decellularized gel, the solution is placed into liquid nitrogen for quick freezing, then the freeze-drying treatment is carried out, a freeze-dried bracket is ground into powder, the powder is added into a medicine solution for 8 hours, the medicine solution is filtered out, and the temperature of an oven is adjusted to 45 ℃ for drying for 48 hours.
8. The urinary surgical bladder and urethra anastomotic device according to claim 1, wherein the fixing pin is prepared by: dissolving PLLA with the weight percentage of 30% and PCL with the weight percentage of 70%, adding 3-10g of drug microsphere powder, stirring uniformly, and printing and molding by using a 3D printer.
9. The urinary surgical bladder-urethra anastomotic device according to claim 1, wherein the fixing needle is fixed by: preparing a die, and manufacturing a group of three dies according to the arrangement mode of the fixing pins; adding 3-10g of drug microsphere powder after selecting 40% PLLA and 60% PCL solution by weight, uniformly stirring, pouring into a mold, placing the mold in liquid nitrogen for quick freezing, then carrying out freeze drying, taking down the mold, and finishing the preparation.
10. A urinary surgical bladder and urethra anastomosis device, according to claim 1, wherein said fixation ring is made of elastic hard silicone material and said balloon is made of elastic soft silicone material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210646177.3A CN115040183B (en) | 2022-06-09 | 2022-06-09 | Urinary surgery is with bladder urethra anastomotic device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210646177.3A CN115040183B (en) | 2022-06-09 | 2022-06-09 | Urinary surgery is with bladder urethra anastomotic device |
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| CN115040183A true CN115040183A (en) | 2022-09-13 |
| CN115040183B CN115040183B (en) | 2024-04-19 |
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2022
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| CN115040183B (en) | 2024-04-19 |
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