CN112169138A - End cap bonding process of catheter and catheter - Google Patents
End cap bonding process of catheter and catheter Download PDFInfo
- Publication number
- CN112169138A CN112169138A CN202011188443.XA CN202011188443A CN112169138A CN 112169138 A CN112169138 A CN 112169138A CN 202011188443 A CN202011188443 A CN 202011188443A CN 112169138 A CN112169138 A CN 112169138A
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- China
- Prior art keywords
- catheter
- plug body
- plug
- end part
- glue solution
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- 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.)
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Classifications
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- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0009—Making of catheters or other medical or surgical tubes
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0009—Making of catheters or other medical or surgical tubes
- A61M25/001—Forming the tip of a catheter, e.g. bevelling process, join or taper
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/32—General characteristics of the apparatus with radio-opaque indicia
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a catheter plug bonding process and a catheter. The invention discloses a plug bonding process of a catheter, which comprises the following steps: prefabricating and molding a plug body containing a developer; injecting glue solution into the end part of the catheter body of the catheter to be connected with the plug body, and sleeving a heat shrinkage film outside the catheter body of the end part of the catheter to be provided with the plug body; and extruding partial glue solution arranged at the end part of the catheter connected with the plug body when the shrink film shrinks. And under the action of the heat shrinkable film, the glue solution flows out from the middle of the plug body and the tube body and is wrapped on the outer surface of the catheter with the plug body area by the heat shrinkable film. The outer surface of the end with the plug body of the catheter prepared by the plug bonding process is smooth, and the processing efficiency and the yield of the catheter can be greatly improved by the process.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a catheter plug bonding process and a catheter.
Background
In clinical medicine, when a patient fails to perform autonomous urination, it is generally necessary to draw out urine in the bladder of the patient using a catheter to relieve problems such as urinary retention. The catheter mainly comprises a guide head and a tube body, and developer is usually compounded in the guide head so as to prevent the catheter from being taken out conveniently when the catheter accidentally falls off to the viscera of a human body.
The existing catheter is characterized in that after barium-containing glue solution is injected into a plug mold, the end part of the catheter is immersed below the liquid level of the glue solution, and then the glue solution is solidified into a plug by heating and the like and is integrally connected with the catheter. However, the processing efficiency of the catheter is low by adopting the mode, the smoothness of the outer surface of the plug is insufficient, the yield is low and the like.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide a catheter plug bonding process and a catheter.
The invention discloses a plug bonding process of a catheter, which comprises the following steps:
(1) prefabricating and molding a plug body containing a developer;
(2) injecting glue solution into the end part of the catheter body of the urinary catheter to be connected with the plug body, and placing the plug body in the step (1) at the end part of the urinary catheter and connecting the plug body with the end part of the urinary catheter;
(3) extruding partial glue solution at the end part of the catheter connected with the plug body, and arranging a shrink sleeve capable of wrapping the end part of the catheter connected with the plug body and at least one partial area of the outer surface of the plug body outside the end part of the catheter connected with the plug body. Therefore, by utilizing the process of the invention, the formed plug body is directly bonded with the tube body, part of glue solution at the end part of the catheter connected with the plug body is extruded during bonding, so that the glue solution is fully filled between the end part of the catheter and the plug body and flows out to the middle of the shrinkage sleeve and the catheter in a small amount, and under the action of the shrinkage sleeve, the outer surface of the glue layer between the tube body of the catheter and the plug body is smooth, so that the flatness of the area of the catheter with the plug body is high after the glue solution is solidified.
Further, the developer is barium.
Furthermore, the plug body has elasticity.
Further, in the step (3), the glue solution is extruded out by applying a force to the axial center line of the catheter to the end part of the catheter connected with the plug body.
Further, the shrink sleeve is a shrink film. According to the invention, the thermal contraction film is sleeved outside the tube body and the plug body, when the thermal contraction film shrinks, the glue solution in the tube at the end part of the tube body is partially extruded to the position between the end part of the tube body and the plug body and flows out slightly to enable the tube body and the plug body to be fully bonded, and meanwhile, under the cladding limit of the thermal contraction film, the outer surface of the end, provided with the plug body, of the finally obtained catheter is smooth.
Further, the inner diameter of the shrink film before shrinking is larger than the outer diameter of the area of the catheter with the stopper body. Therefore, the plug body and the tube body can be placed and bonded conveniently, glue liquid can be injected conveniently, after shrinkage, the shrinkage film is tightened towards the end parts of the plug body and the tube body, the glue liquid positioned at the end part of the tube body is extruded, and meanwhile, under the coating of the shrinkage film, the glue liquid flowing out from the middle of the plug body and the tube body can be ensured to form a smooth and flat outer surface after solidification.
Furthermore, after the glue solution is injected into the catheter body, the shrink film is tightened, and part of the glue solution on the end part of the catheter body connected with the plug body is extruded to the middle of the surface, close to the catheter, of the plug body.
The invention also provides a catheter prepared by the process. The outer surface of the end part of the catheter with the plug body is flat and smooth, glue solution is uniformly distributed, and the structure of the catheter is firm.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is an enlarged partial schematic view at A of FIG. 1;
FIG. 3 is a schematic view of a second embodiment of the present invention showing the construction of a heat shrinkable film when it is not shrunk;
FIG. 4 is a schematic view of the heat shrinkable film of the second embodiment of the present invention after shrinking.
In the figure, the position of the upper end of the main shaft,
1. a pipe body; 2. a plug body; 3. an adhesive layer; 31. a first adhesive layer; 32. a second adhesive layer; 33. a third adhesive layer; 4. a heat shrinkable film.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
The first embodiment is as follows:
referring to fig. 1 and 2, a catheter according to a preferred embodiment of the present invention includes a tubular body 1 and a stopper body 2 at one end of the tubular body 1. The tube body 1 of this embodiment is a silica gel tube body 1, and the plug body 2 is a silica gel material compounded with barium (such as barium sulfate). An adhesive layer 3 is arranged on the surface of one side, close to the pipe body 1, of the plug body 2 and inside one end, connected with the plug body 2, of the pipe body 1. The adhesive layer 3 includes a first adhesive layer 31 located in the middle of the surface of the plug body 2 close to the tube body 1, a second adhesive layer 32 covering the outer side wall of the region of the plug body 2 close to the tube body 1, and a third adhesive layer 33 in the tube at the end of the tube body 1 connected to the plug body 2. The first adhesive layer 31, the second adhesive layer 32 and the third adhesive layer 33 are integrally connected.
The plug body 2 of the present embodiment contains a barium developer, and thus the plug body 2 that has been inadvertently dropped into the body can be quickly positioned and removed by the contrast apparatus.
Example two:
the embodiment provides a plug bonding process of a catheter, which comprises the following steps:
(1) prefabricating and molding the plug body 2 containing the developer;
(2) arranging a heat shrinkable film 4 capable of wrapping the end part of the catheter body 1 connected with the plug body 2 and the plug body 2 at the end part of the catheter to be provided with the plug body 2, wherein the inner diameter of the heat shrinkable film 4 before shrinkage is larger than the outer diameter of the plug body 2 and the outer diameter of the end part of the catheter body 1 connected with the plug body 2 (see figure 3);
(3) injecting glue solution into the tube at the end part of one end of the tube body 1, where the plug body 2 is to be installed, and placing the plug body 2 in the step (1) at the end part of the catheter and connecting the plug body with the catheter;
(4) the heat shrinkable film 4 is heated, and the end part of the catheter connected with the stopper body 2 is shrunk by the shrinkage of the heat shrinkable film 4 (see fig. 4). Therefore, when the heat shrinkable film 4 shrinks, a part of glue solution originally in the tube at the end of the catheter is extruded and flows to a gap between the catheter and the plug body 2 and flows out from the middle of the tube body 1 and the plug body 2, meanwhile, under the tightening and covering action of the heat shrinkable film 4, the glue solution can be fully distributed between the tube body 1 and the plug body 2 of the catheter, and a small amount of glue solution flowing out from the middle of the tube body 1 and the plug body 2 can form a flat and smooth outer surface connected with the tube body 1 and the plug body 2 on the outer surface of the catheter after being cured under the action of the heat shrinkable film 4.
Step (2) of this embodiment may also be completed after step (3), and it is only necessary to ensure that the glue solution is injected into the tube at the end of the tube body 1 connected to the plug body 2 before the heat shrinkable film 4 shrinks.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. The process for bonding the plug of the catheter is characterized by comprising the following steps of:
(1) prefabricating and molding a plug body containing a developer;
(2) injecting glue solution into the end part of the catheter body of the urinary catheter to be connected with the plug body, and placing the plug body in the step (1) at the end part of the urinary catheter and connecting the plug body with the end part of the urinary catheter;
(3) extruding partial glue solution at the end part of the catheter connected with the plug body, and arranging a shrink sleeve capable of wrapping the end part of the catheter connected with the plug body and the outer surface of at least one part of area of the plug body outside the end part of the catheter connected with the plug body.
2. The process for bonding the plug of the urinary catheter according to claim 1, wherein the developing agent is barium.
3. The process for bonding a stopper of a urinary catheter according to claim 1, wherein the stopper body has elasticity.
4. The process for bonding the plug of the catheter according to claim 1, wherein the glue is extruded in the step (3) by applying a force to the axial center line of the catheter to the end part of the catheter connected with the plug body.
5. The process for bonding the end cap of the urinary catheter according to claim 4, wherein the shrink sleeve is a shrink film.
6. The process of claim 5, wherein the inner diameter of the shrink film before shrinking is larger than the outer diameter of the catheter in the area with the stopper body.
7. The process for bonding the plug of the catheter according to claim 6, wherein after the glue solution is injected into the catheter body of the catheter, the shrink film is tightened, and part of the glue solution on the end part of the catheter body connected with the plug body is extruded to the middle of the surface, close to the catheter, of the plug body.
8. A urinary catheter prepared by the process of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011188443.XA CN112169138A (en) | 2020-10-30 | 2020-10-30 | End cap bonding process of catheter and catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011188443.XA CN112169138A (en) | 2020-10-30 | 2020-10-30 | End cap bonding process of catheter and catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112169138A true CN112169138A (en) | 2021-01-05 |
Family
ID=73917632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011188443.XA Pending CN112169138A (en) | 2020-10-30 | 2020-10-30 | End cap bonding process of catheter and catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112169138A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823338A (en) * | 2009-03-02 | 2010-09-08 | 山东省医疗器械研究所 | Rapid forming method of plug at end part of silicon rubber conduit |
| CN102133174A (en) * | 2003-08-11 | 2011-07-27 | 维勒拉制药股份有限公司 | Long term drug delivery devices with polyurethane based polymers and their manufacture |
| CN203235123U (en) * | 2013-02-01 | 2013-10-16 | 海盐康源医疗器械有限公司 | Slot type silicone catheter with drainage and antiphlogosis functions |
| CN203736687U (en) * | 2014-01-14 | 2014-07-30 | 珠海爱晟医疗科技有限公司 | Disposable temperature-measuring catheter |
| CN203829454U (en) * | 2014-03-24 | 2014-09-17 | 中山市贝尔格介入医械有限公司 | Peripherally Inserted Central Catheter (PICC) with pressure double-leaf and double-action door |
| CN104826211A (en) * | 2015-04-09 | 2015-08-12 | 广州新诚生物科技有限公司 | Cross-shaped double-jacketed drainage tube |
| CN108126266A (en) * | 2018-02-10 | 2018-06-08 | 威海吉威重症医疗制品有限公司 | A kind of PICC guide couplings |
| CN109078250A (en) * | 2018-10-18 | 2018-12-25 | 向谷兮 | A kind of catheter that working efficiency and reliability can be improved |
| CN109464710A (en) * | 2018-12-17 | 2019-03-15 | 周利 | A kind of silicone catheter development RTV liquid end socket glue |
| CN210472770U (en) * | 2019-01-28 | 2020-05-08 | 江苏迪沃生物制品有限公司 | Oviduct radiography and liquid-flowing catheter |
-
2020
- 2020-10-30 CN CN202011188443.XA patent/CN112169138A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133174A (en) * | 2003-08-11 | 2011-07-27 | 维勒拉制药股份有限公司 | Long term drug delivery devices with polyurethane based polymers and their manufacture |
| CN101823338A (en) * | 2009-03-02 | 2010-09-08 | 山东省医疗器械研究所 | Rapid forming method of plug at end part of silicon rubber conduit |
| CN203235123U (en) * | 2013-02-01 | 2013-10-16 | 海盐康源医疗器械有限公司 | Slot type silicone catheter with drainage and antiphlogosis functions |
| CN203736687U (en) * | 2014-01-14 | 2014-07-30 | 珠海爱晟医疗科技有限公司 | Disposable temperature-measuring catheter |
| CN203829454U (en) * | 2014-03-24 | 2014-09-17 | 中山市贝尔格介入医械有限公司 | Peripherally Inserted Central Catheter (PICC) with pressure double-leaf and double-action door |
| CN104826211A (en) * | 2015-04-09 | 2015-08-12 | 广州新诚生物科技有限公司 | Cross-shaped double-jacketed drainage tube |
| CN108126266A (en) * | 2018-02-10 | 2018-06-08 | 威海吉威重症医疗制品有限公司 | A kind of PICC guide couplings |
| CN109078250A (en) * | 2018-10-18 | 2018-12-25 | 向谷兮 | A kind of catheter that working efficiency and reliability can be improved |
| CN109464710A (en) * | 2018-12-17 | 2019-03-15 | 周利 | A kind of silicone catheter development RTV liquid end socket glue |
| CN210472770U (en) * | 2019-01-28 | 2020-05-08 | 江苏迪沃生物制品有限公司 | Oviduct radiography and liquid-flowing catheter |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20211227 Address after: 223600 No. 18 Wenzhou Road, Shuyang Economic Development Zone, Suqian, Jiangsu. Applicant after: JIANGSU WEIAKANG JIEJING MEDICAL APPARATUS Co.,Ltd. Address before: 215000 89 wangmi street, high tech Zone, Suzhou City, Jiangsu Province Applicant before: SUZHOU WEIKANG MEDICAL APPARATUS Co.,Ltd. |
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| TA01 | Transfer of patent application right |