CN114948037A - Absorbable pancreaticojejunostomy device and degradable and absorbable polyurethane elastomer - Google Patents
Absorbable pancreaticojejunostomy device and degradable and absorbable polyurethane elastomer Download PDFInfo
- Publication number
- CN114948037A CN114948037A CN202210485430.1A CN202210485430A CN114948037A CN 114948037 A CN114948037 A CN 114948037A CN 202210485430 A CN202210485430 A CN 202210485430A CN 114948037 A CN114948037 A CN 114948037A
- Authority
- CN
- China
- Prior art keywords
- absorbable
- tube
- tube body
- pipe body
- pancreaticojejunostomy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- A61B17/1114—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis of the digestive tract, e.g. bowels or oesophagus
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
- A61M27/002—Implant devices for drainage of body fluids from one part of the body to another
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00004—(bio)absorbable, (bio)resorbable, resorptive
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Public Health (AREA)
- Surgery (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Physiology (AREA)
- Ophthalmology & Optometry (AREA)
- Otolaryngology (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Materials For Medical Uses (AREA)
Abstract
The invention discloses an absorbable pancreaticojejunostomy device which is made of degradable and absorbable polyurethane elastomer and comprises a first part, a second part and a third part, wherein the first part comprises a first pipe body, the second part comprises a second pipe body, the third part comprises a third pipe body, and the first part, the second part and the third part are integrally formed; the first part comprises a supporting piece and a drainage hole, the supporting piece is fixedly connected with the outer side wall of the first tube body, and the drainage hole penetrates through the first tube body; the second part comprises a connecting piece for connecting the intestinal canal and the pancreatic stub, and the connecting piece is fixedly connected with the second tube body; the third tube body is inserted into the intestinal tube.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to an absorbable pancreaticojejunum anastomat.
Background
Good pancreatico-intestinal anastomosis should meet the following conditions: the method is simple, convenient, easy, safe and reliable; secondly, good blood supply is ensured; thirdly, the hemostasis is thorough; fourthly, ensuring the tissue activity; maintain proper tension; sixthly, the sewing is accurate. By using the experience of other lumen anastomosis such as gastrointestinal anastomosis and the like, the industrialized lumen anastomat is used for anastomosis, so that the precision degree of anastomosis can be greatly improved, and the homogeneity of anastomosis of different operation operators can be improved. But the special characteristics of pancreas (tissue texture is soft, the diameter of a normal pancreatic duct is thin and is only 0.2-0.3cm), automatic cutting and metal suturing cannot be carried out by using a tool similar to a gastrointestinal anastomat, and no anastomat product special for pancreas and intestine anastomosis is available at home and abroad at present; meanwhile, when the pancreaticotomy is performed, a pipeline needs to be reserved in the pancreatic duct in most of the time to support the pancreatic duct and drain pancreatic juice, so that the pressure of the pancreaticotomy anastomoses opening is reduced, and the healing of the pancreaticotomy anastomoses opening is promoted.
At present, the pancreatoduodenal anastomosis mode is manual suture of doctors, a urinary catheter for children or a soft tube similar to the urinary catheter for children is adopted for connecting a pancreatic duct and an intestinal duct, the anastomosis quality is greatly influenced by the number of cases operated by an operator and personal experience, and homogenization among different doctors is difficult to achieve. Meanwhile, the pancreatic duct has individual difference, and the currently adopted infantile ureter or similar pipeline has improper model, so that the tube needs to be permanently left in the body after the operation of a patient and if internal drainage is performed; if external drainage is performed, the patient needs to carry the tube for 45-60 days, and the probability of unplanned tube drawing is high. Therefore, it is necessary to design a stapler specifically for pancreaticotomy.
The invention aims at the problems and provides an absorbable pancreaticojejunostomy device.
Disclosure of Invention
In order to overcome the problems in the background art, the invention adopts the following technical scheme:
an absorbable pancreaticojejunostomy device is made of degradable and absorbable polyurethane elastomer and comprises a first part, a second part and a third part, wherein the first part comprises a first pipe body, the second part comprises a second pipe body, the third part comprises a third pipe body, and the first part, the second part and the third part are integrally formed; the first part comprises a supporting piece and a drainage hole, the supporting piece is fixedly connected with the outer side wall of the first pipe body, and the drainage hole penetrates through the first pipe body; the second part comprises a connecting piece for connecting the intestinal canal and the pancreatic stub, and the connecting piece is fixedly connected with the second tube body; the third tube body is inserted into the intestinal tube.
In some embodiments of the present application, the first tube, the second tube and the third tube form a hollow tubular structure with two open ends. In the using process, the pancreatic juice secreted by the pancreas flows out of the tube body I, then the pancreatic juice flows through the tube body II and the tube body III, and the pancreatic juice flows out of the tube body and enters the intestinal canal.
In some embodiments of the present application, the support member is a barb, and the barb surrounds the inner portion of the first pipe body. In a use state, the first pipe body is in contact with the inner wall of the pancreatic duct, and the barbs are used for supporting the pancreatic duct.
In other embodiments, the support member is a barb, the barb is located on the outer surface of the first tube body, and the barb surrounds the outer side wall of the first tube body. The free end of the barb is abutted against the tube wall of the pancreatic duct, and the functions of supporting the pancreatic duct and preventing the pancreatic duct from coming off are achieved.
Further, the free end of barb is the contact head of semicircle ball type, contact head and barb integrated into one piece. In order to protect the pancreatic duct intima, the free end of the barb is designed to be free of edges and corners.
In some embodiments of the present application, the drainage holes are regular through holes, and the drainage holes penetrate through the tube wall of the first tube body. In a use state, pancreatic juice secreted by the pancreas enters the first tube body from the drainage hole, so that the drainage of the pancreatic juice is realized.
Further, the drainage hole encircles body one.
In some embodiments of the present application, the connection member is a ring-shaped connection disc; the annular connecting disc is arranged on the periphery of the second pipe body and fixedly connected with the second pipe body. When the connecting disc is used for fixing the intestinal wall and the pancreatic stump, the connecting disc is sewed on the intestinal wall and the pancreatic stump through surgical sutures.
Furthermore, the surface of the connecting disc is smooth, and the connecting disc is in contact with the intestinal canal and the pancreas stump. Can protect and support the intestinal canal and the pancreatic stump.
In some embodiments of the present application, the first portion, the second portion, and the third portion are made of degradable materials. The anastomat provided by the invention has the functions of connecting the intestinal tract, the pancreatic duct and the pancreatic tissue, supporting the pancreatic duct and draining pancreatic juice, and can be finally degraded in vivo without toxicity, and the anastomat does not need to be taken out again in an operation, so that the risk that a patient carries the duct and the supporting tube to puncture the intestinal wall in the intestinal duct for a long time is avoided.
The invention has the beneficial effects that:
(1) homogenization is achieved among different physicians, and meanwhile, the incidence rate of pancreatic fistula is reduced;
(2) the support piece can play a role in supporting the pancreatic duct and preventing the pancreatic duct from falling off, so that stable drainage is ensured, and the key point of avoiding pancreatic fistula is to stabilize drainage;
(3) can be non-toxic degraded in vivo, and avoid the permanent retention of the anastomat in the body of a patient;
(4) can improve the anastomosis quality of the pancreaticojejunostomy, reduce the operation difficulty and reduce complications, and has important significance for improving the survival quality of patients and lightening the medical burden.
The using method of the invention comprises the following steps:
under the action of an operation implanting instrument, the first tube body is inserted into the pancreatic duct, the connecting piece is positioned at the position of the pancreas-intestine anastomosis, and the third tube body is inserted into the intestinal duct; a pancreatic duct is supported by the duct body, and pancreatic juice is drained through the drainage hole on one side wall of the duct body;
the connecting piece supports the pancreaticotomy anastomoses opening to promote the healing of the pancreaticotomy anastomoses opening; pancreatic juice is drained out by the tube body I, and flows into the intestinal canal from the tube body I to participate in digestion.
The invention also discloses a high molecular degradable material for manufacturing the absorbable pancreaticojejunostomy device, which comprises the following components in percentage by weight: a degradable and absorbable polyurethane elastomer comprises diisocyanate, polymer polyol residues and small-molecule chain extender residues.
Further, the degradable and absorbable polyurethane elastomer structure is as follows:
wherein: SS is a soft segment part in the polyurethane elastomer, HS is a hard segment part in the polyurethane elastomer, and-U-is a diisocyanate residue; -O- (R) 1 ) n -O-is a polymer polyol residue; n is any integer of 10-1000; - (R) 2 ) -is a small molecule chain extender residue.
Further, the polymer polyol comprises one or more of polyol obtained by ring-opening polymerization of one or more of cyclic lactone (VIII), cyclic crosslinked ester (IX), cyclic carbonate (X) and cyclic ester-ether (XI) or polymer polyol obtained by ring-opening polymerization of diacid glycol ester (V). Wherein R is 4 、R 6 Selected from hydrogen or alkyl having 1 to 10 carbon atoms, R 5 Selected from hydrogen or methyl, R7 is selected from hydrogen or alkyl having 1 to 10 carbon atoms or hydroxyalkyl having 1 to 10 carbon atoms, m 1 、m 2 Represents that the number of repeating units is 1 to 4, m 3 、m 4 The number of repeating units is 2 to 20.
Further, the diisocyanate comprises one or two or more of diisocyanate, 4 '-diphenylmethane diisocyanate, 1, 6-hexamethylene diisocyanate, L-lysine diisocyanate, lysine ester diisocyanate, isophorone diisocyanate and 4, 4' -methylene (cyclohexyl) -diisocyanate.
Furthermore, the micromolecular chain extender comprises one or two or more of micromolecular diol (VI), diamine (VII), 3 ' -dichloro-4, 4 ' -diaminodiphenylmethane and 4,4 ' -diaminodiphenylmethane, and m is 5 、m 6 Indicates the number of repeating unitsIs 2 to 12.
A preparation method of degradable and absorbable polyurethane elastomer comprises the following steps:
step 1: adding polymer polyol into a reactor to remove water and dry; after the water removal is finished, heating to a temperature higher than the melting point of the polyhydric alcohol for melting.
Step 2: under a protective atmosphere, diisocyanate is added into the mixture obtained in the step 1, and after sufficient reaction, isocyanate-terminated prepolymer is obtained.
And step 3: and (3) under a protective atmosphere, adding a micromolecule chain extender into the diisocyanate-terminated prepolymer obtained in the step (2), and after the reaction is finished, obtaining the required absorbable polyurethane elastomer.
Drawings
FIG. 1 is a schematic view of the overall structure of the absorbable pancreaticojejunostomy device of the present invention;
FIG. 2 is a schematic view of an absorbable pancreaticojejunostomy device according to the present invention;
FIG. 3 is a cross-sectional view of a first absorbable pancreaticojejunostomy tube of the present invention;
FIG. 4 is a schematic view of the overall structure of the absorbable pancreaticojejunostomy barb of the present invention on the outer surface of the first tube;
FIG. 5 is a schematic front view of the absorbable pancreaticojejunostomy barb of the present invention on the outer surface of the first tube;
FIG. 6 is a partially enlarged structural view of the barb of the absorbable pancreaticojejunostomy device of the invention on the outer surface of the first tube body;
in the figure, 1, a tube body I; 11. a barb; 12. a drainage hole; 2. a second pipe body; 21. a connecting member; 3. and a third pipe body.
Detailed Description
Various embodiments of the present invention will now be described in detail with reference to the drawings, wherein like reference numerals are used to refer to like elements or features throughout for convenience in describing the relationship of one element or feature to another element or feature(s). These spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be oriented in different orientations (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Fig. 1 is a schematic overall structure diagram of the present invention, fig. 2 is a schematic front view of the present invention, and fig. 1 and 2 illustrate an overall technical solution of the present embodiment, which provides an absorbable pancreaticojejunostomy device made of a degradable and absorbable polyurethane elastomer, including a first portion, a second portion and a third portion, wherein the first portion includes a first tube body 1, the second portion includes a second tube body 2, the third portion includes a third tube body 3, and the first portion, the second portion and the third portion are integrally formed; the first part comprises a supporting piece and a drainage hole 12, the supporting piece is fixedly connected with the outer side wall of the first tube body 1, and the drainage hole 12 penetrates through the first tube body 1; the second part comprises a connecting piece 21 for connecting an intestinal canal and a pancreas stub, and the connecting piece 21 is fixedly connected with the second tube body 2; the tube body three 3 is inserted into the intestinal tube.
The using method of the embodiment comprises the following steps: the tube body I1 is placed into a pancreatic tube to play a role in draining pancreatic juice, and the pancreatic juice enters the tube body I1 from the drainage hole 12, flows through the tube body II 2 and the tube body III 3, finally flows out of the tube body III 3 to enter an intestinal tube and participates in digestion.
In this embodiment, the first tube 1, the second tube 2 and the third tube 3 are regular hollow tubular structures with two open ends. Preferably, the tube body I1, the tube body II 2 and the tube body III 3 are all cylindrical hollow tubular structures; the first tube body 1, the second tube body 2 and the third tube body 3 are adaptive to the shape of the pancreatic duct. This embodiment adopts the preparation of polymer degradable material to body one 1, body two 2 and body three 3, and body one 1, body two 2 and body three 3 that are located internal can be degraded and absorbed, need not to perform the operation once more and take out body one 1, body two 2 and body three 3, avoid the misery of secondary operation.
Due to the material properties, the tube body I1 has elasticity and can adapt to a pancreatic duct, and after the tube body I1 is placed into the pancreatic duct, the outer wall of the tube body I1 is in contact with the inner wall of the pancreatic duct. Fig. 3 is a cross-sectional view of the pipe body 1, and as shown in the figure, the barbs 11 are wound around the inside of the pipe wall of the pipe body 1, and optionally, the barbs 11 are spirally wound around the inside of the pipe wall of the pipe body to play a role of three-dimensional support. The sizes of the first pipe body 1, the second pipe body 2 and the third pipe body 3 are specifically set, and the pipe diameters of the first pipe body 1, the second pipe body 2 and the third pipe body 3 are 5F-8F; the length of the first pipe body 1 is at least 6cm, the length of the third pipe body 3 is at least 15cm, and the outer diameters of the first pipe body 1, the second pipe body 2 and the third pipe body 3 are the same; when in use, the utility model can be freely cut according to the operation requirement. Preferably, the pipe diameters of the first pipe body 1, the second pipe body 2 and the third pipe body 3 are 6F, and the size is suitable for a normal pancreatic duct; the tube diameters of the first tube body 1, the second tube body 2 and the third tube body 3 are 8F, and the size is suitable for a slightly expanded pancreatic duct. The preparation method of the barb 11 in this example is: the tube wall of the tube body I1 is spirally cut, the outer surface and the inner surface of the tube body I1 are not cut, the outer surface of the tube body I1 is smooth, and the pancreatic duct can be smoothly placed in the operation process; the barb 11 made by adopting the cutting mode has high strength and stable supporting force, plays a role in stabilizing drainage, and is a key factor for promoting the pancreas and intestine anastomosis. In the above embodiment, the barb 11 forms an included angle β with the horizontal centerline of the first tube 1, β is not less than 30 ° and not more than 60 °, and preferably β is not less than 45 °, and the operation is easier during the insertion process.
In another embodiment, the barb 11 is located on the outer surface of the tube body 1, the barb 11 surrounds the outer side wall of the tube body 1, and the preparation method of the barb 11 in this embodiment is as follows: and spirally cutting the pipe wall of the first pipe body 1, and cutting the outer surface of the first pipe body 1.
As shown in fig. 4-6, in some embodiments, the barb 11 is located on the outer surface of the tube body 1, the barb 11 is of a cylindrical structure, the barb 11 is integrally connected to the tube body 1, the free end of the barb 11 abuts against the wall of the pancreatic duct to support the pancreatic duct and prevent the barb from coming off, in this embodiment, the support member is a support pillar protruding out of the side wall of the tube body 1, the support pillar forms an included angle β with the horizontal central line of the tube body 1, β is 45 °, one end of the support pillar is fixedly connected to the tube body 1, the other end of the support pillar abuts against the inner wall of the pancreatic duct, the free end of the support pillar is of a smooth hemispherical structure, the support pillar surrounds the outer side wall of the tube body 1, and at least 3 support pillars are arranged on the same annular plane to perform the function of three-dimensional support; same annular plane's barb 11 is a set of, sets up 3 groups barb 11 at the lateral wall of body 1 at least, realizes preventing deviating from's function. Alternatively, the support column is spirally wound around the outer side wall of the first pipe body 1.
In the above embodiment, the drainage holes 12 are regularly-shaped holes, and preferably, the drainage holes 12 are circular holes; the drainage holes 12 are arranged on the side wall of the tube body I1 in a surrounding mode, and the drainage holes 12 penetrate through the outer side wall of the tube body I1; at least 3 drainage holes 12 are arranged on the same annular plane, so that the function of three-dimensional surrounding drainage is achieved; the drainage holes 12 on the same annular plane are a group, and at least 3 groups of drainage holes 12 are formed in the outer side wall of the tube body I1, so that the function of quick and efficient drainage is realized. In another embodiment, the drainage holes 12 are spirally distributed around the side wall of the first tube body 1. The drainage holes 12 in this embodiment start at the starting end of the first tube body 1, the drainage holes 12 are distributed from the starting end of the first tube body 1 to the direction of the connecting piece 21, and the terminating end of the drainage holes 12 is at least 2cm away from the connecting piece 21.
In the above embodiment, the connecting member 21 is an annular connecting disc, the annular connecting disc is disposed on the outer periphery of the tube body 2, and the annular connecting disc is fixedly connected with the tube body 2. Preferably, the connecting disc is of a circular ring-shaped structure, the inner wall of the connecting disc is fixedly connected with the outer side wall of the second pipe body 2, and the outer surface of the connecting disc is smooth. When in use, the connecting disc is positioned at the anastomotic stoma of the pancreas and is sewed on the intestinal wall and the pancreatic stump through a suture. In the embodiment, the wire diameter of the connecting disc is at least 1cm, the connecting disc is made of high-molecular degradable materials, and has elasticity due to the material property of the connecting disc, so that the connecting disc is folded when the connecting disc is used, the connecting disc is rebounded to be tightly attached to the inner wall of the intestinal canal under the effect of no external force, and then the connecting disc and the intestinal canal are sewn; the connecting disc can also be freely cut according to the operation requirement.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 embodiments described herein are only a part of the embodiments of the present invention, and not all embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The present invention can be implemented or applied by other different specific embodiments, and the features in the following embodiments and embodiments can be combined with each other without conflict, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Claims (10)
1. An absorbable pancreaticojejunostomy device is made of degradable and absorbable polyurethane elastomer and comprises a first part, a second part and a third part, wherein the first part comprises a first pipe body, the second part comprises a second pipe body, the third part comprises a third pipe body, and the first part, the second part and the third part are integrally formed; the first part comprises a supporting piece and a drainage hole, the supporting piece is fixedly connected with the outer side wall of the first pipe body, and the drainage hole penetrates through the first pipe body; the second part comprises a connecting piece for connecting the intestinal canal and the pancreatic stub, and the connecting piece is fixedly connected with the second tube body; the third tube body is inserted into the intestinal tube.
2. The absorbable pancreaticojejunostomy device of claim 1, wherein the first tube body, the second tube body and the third tube body form a hollow tubular structure with two open ends.
3. The absorbable pancreaticojejunostomy device of claim 2, wherein the support member is a barb, and the barb is surrounded on the inner portion of the first tube wall.
4. The absorbable pancreaticojejunostomy device of claim 2, wherein the support member is a barb, the barb is located on the outer surface of the first tube body, and the barb is arranged around the outer side wall of the first tube body.
5. The absorbable pancreaticojejunostomy device of claim 4, wherein the free end of the barb is a contact head of a semi-spherical shape, the contact head being integrally formed with the barb.
6. The absorbable pancreaticojejunostomy device of claim 2, wherein the drainage holes are regularly-shaped through holes, and the drainage holes penetrate through the tube wall of the first tube body.
7. The absorbable pancreatico-intestinal anastomat as claimed in claim 6, wherein the drainage holes are formed from the starting end of the first tube body, the drainage holes are distributed from the starting end of the first tube body to the direction of the connecting piece, and the stopping end of the drainage holes is at least 2cm away from the connecting piece.
8. The absorbable pancreaticojejunostomy device of claim 7, wherein the connecting piece is an annular connecting disc; the annular connecting disc is arranged on the periphery of the second pipe body and fixedly connected with the second pipe body.
9. The absorbable pancreaticojejunostomy device according to any one of claims 1-8, wherein the tube diameters of the first tube body, the second tube body and the third tube body are 5F-8F; the length of the first pipe body is at least 4cm, the length of the third pipe body is at least 15cm, and the outer diameters of the first pipe body, the second pipe body and the third pipe body are the same.
10. The absorbable pancreaticojejunostomy device of claim 3, wherein the barbs are at an angle β with the horizontal midline of the first tube, 30 ° β 60 °, preferably 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210485430.1A CN114948037A (en) | 2022-05-06 | 2022-05-06 | Absorbable pancreaticojejunostomy device and degradable and absorbable polyurethane elastomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210485430.1A CN114948037A (en) | 2022-05-06 | 2022-05-06 | Absorbable pancreaticojejunostomy device and degradable and absorbable polyurethane elastomer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114948037A true CN114948037A (en) | 2022-08-30 |
Family
ID=82981369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210485430.1A Pending CN114948037A (en) | 2022-05-06 | 2022-05-06 | Absorbable pancreaticojejunostomy device and degradable and absorbable polyurethane elastomer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114948037A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116041654A (en) * | 2022-12-28 | 2023-05-02 | 四川大学 | Absorbable pancreas drainage tube capable of self-adapting fitting, resisting bacteria and diminishing inflammation and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105534625A (en) * | 2015-12-14 | 2016-05-04 | 洪德飞 | Pancreas intestine internal drainage silica gel 3 pancreas intestine support |
| CN106859716A (en) * | 2017-03-02 | 2017-06-20 | 福建医科大学附属协和医院 | A kind of pancreas intestine anastomat |
| CN108992116A (en) * | 2018-08-27 | 2018-12-14 | 杭州市第人民医院 | A kind of pancreas Surgical healing support hangnail pipe |
| CN111493960A (en) * | 2020-04-24 | 2020-08-07 | 喻智勇 | Novel stent drainage tube applied to pancreaticojejunostomy and method thereof |
| CN211834883U (en) * | 2020-02-13 | 2020-11-03 | 福州大学 | Three-dimensional printing pancreatic duct stent tube anastomat structure |
| CN212788590U (en) * | 2020-04-21 | 2021-03-26 | 昆明市第一人民医院 | 3D printing suture-free pancreaticojejunostomy bracket |
| CN112754580A (en) * | 2020-12-31 | 2021-05-07 | 盈甲医疗科技(北京)有限公司 | Pancreas intestine anastomat |
| CN113768570A (en) * | 2021-09-18 | 2021-12-10 | 南华大学附属第一医院 | Pancreas intestines support of inosculating that adopts 3D to print |
-
2022
- 2022-05-06 CN CN202210485430.1A patent/CN114948037A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105534625A (en) * | 2015-12-14 | 2016-05-04 | 洪德飞 | Pancreas intestine internal drainage silica gel 3 pancreas intestine support |
| CN106859716A (en) * | 2017-03-02 | 2017-06-20 | 福建医科大学附属协和医院 | A kind of pancreas intestine anastomat |
| CN108992116A (en) * | 2018-08-27 | 2018-12-14 | 杭州市第人民医院 | A kind of pancreas Surgical healing support hangnail pipe |
| CN211834883U (en) * | 2020-02-13 | 2020-11-03 | 福州大学 | Three-dimensional printing pancreatic duct stent tube anastomat structure |
| CN212788590U (en) * | 2020-04-21 | 2021-03-26 | 昆明市第一人民医院 | 3D printing suture-free pancreaticojejunostomy bracket |
| CN111493960A (en) * | 2020-04-24 | 2020-08-07 | 喻智勇 | Novel stent drainage tube applied to pancreaticojejunostomy and method thereof |
| CN112754580A (en) * | 2020-12-31 | 2021-05-07 | 盈甲医疗科技(北京)有限公司 | Pancreas intestine anastomat |
| CN113768570A (en) * | 2021-09-18 | 2021-12-10 | 南华大学附属第一医院 | Pancreas intestines support of inosculating that adopts 3D to print |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116041654A (en) * | 2022-12-28 | 2023-05-02 | 四川大学 | Absorbable pancreas drainage tube capable of self-adapting fitting, resisting bacteria and diminishing inflammation and preparation method thereof |
| CN116041654B (en) * | 2022-12-28 | 2024-05-17 | 四川大学 | Absorbable pancreas drainage tube capable of self-adapting fitting, resisting bacteria and diminishing inflammation and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6346350B2 (en) | Medical device and method for producing the same | |
| US20180042612A1 (en) | System and method for scaffolding of anastomoses | |
| US10383510B2 (en) | Implant with high vapor pressure medium | |
| ES2547203T3 (en) | Medical device | |
| ES2370487T3 (en) | BIODEGRADABLE DRAININGS FOR MEDICAL APPLICATIONS. | |
| US7235094B2 (en) | Vascular prosthesis for the treatment of abdominal aortic aneurysms, using a combined laparoscopic/open and endovascular technique, and delivery system for releasing a prosthesis fitted with anchoring stents | |
| US9333102B2 (en) | Stent | |
| CN105007858A (en) | Surgical implant | |
| JPH11313895A (en) | Bellows medical structure and device using the same | |
| CN103282073B (en) | A urological device | |
| US20050261761A1 (en) | Visceral anastomotic device and method of using same | |
| JP2023512663A (en) | Tissue repair and sealing device with removable graft and fastener assembly and method for using same | |
| CN102573660A (en) | Vasculature closure devices and methods | |
| WO2006009925A2 (en) | Method and device for cavity obliteration | |
| CN114948037A (en) | Absorbable pancreaticojejunostomy device and degradable and absorbable polyurethane elastomer | |
| US20240099824A1 (en) | Novel flexible intestinal anastomosis stent | |
| CN216536323U (en) | Novel intestinal tract flexible anastomosis support | |
| CN216495452U (en) | Intestinal tract flexible anastomosis stent | |
| CN220159007U (en) | Gastric diversion support released through cavity | |
| CN219896547U (en) | Anti-inflammatory anti-calculus acellular matrix composite membrane | |
| KR102322711B1 (en) | Vascular anastomosis device comprising water soluble polymer carrier | |
| KR20130141977A (en) | Bioabsorbable vascular anastomosis device | |
| CN218979336U (en) | Fistula-preventing pancreatic duct support | |
| CN113855134A (en) | Intestinal tract flexible anastomosis stent | |
| CN116687636A (en) | Gastric diversion stent released through cavity and application method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |