CN217854146U - Three-cavity catheter without needle joint - Google Patents
Three-cavity catheter without needle joint Download PDFInfo
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- CN217854146U CN217854146U CN202220384259.0U CN202220384259U CN217854146U CN 217854146 U CN217854146 U CN 217854146U CN 202220384259 U CN202220384259 U CN 202220384259U CN 217854146 U CN217854146 U CN 217854146U
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Abstract
The utility model belongs to the technical field of medical instrument, especially, relate to a three chamber catheters of needleless connector. The utility model discloses, including the catheter main part, have in this catheter main part and wash the injection pipe, wash the injection pipe on set firmly or integrated into one piece have the needleless connector subassembly. The utility model directly arranges the needle-free joint component at the flushing medicine injection port of the three-cavity catheter, and the needle-free joint component is an airtight integrated device, is not easy to fall off, ensures the airtightness of the drainage of the catheter and has stronger practicability; meanwhile, when the bladder of a patient is flushed and dosed, the connector of the infusion apparatus can be directly butted with the needleless connector assembly, and the connector and the needleless connector assembly can be hermetically connected, so that compared with the traditional bladder flushing operation, the syringe needle can be prevented from accidentally slipping, the incidence rate of needle stick injuries can be reduced, the risk of infection of the patient can be reduced, and the daily workload of nurses can be reduced; the infusion set connector can be directly used for injecting the medicine and the flushing fluid.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, a three chamber catheters of needleless connector is related to.
Background
The catheter is a pipeline made of natural rubber, silicon rubber or polyvinyl chloride (PVC), can be inserted into the bladder through the urethra to drain urine to the outside of the body, after the catheter is inserted into the bladder, an air bag is arranged near the end of the catheter to fix the catheter in the bladder and prevent the catheter from falling off, and a drainage tube extending to the outside of the body is connected with a urine bag to collect urine.
The traditional double-cavity catheter is mostly applied to patients who are kept in catheterization for a long time, while the three-cavity catheter is widely applied to the operation of electrostomy of diseases such as prostatic hyperplasia, prostatic cancer, bladder tumor and the like in urinary surgery, and bladder washing and medicine injection are required to be continuously carried out. When the bladder is flushed and injected, an intravenous infusion needle of an infusion apparatus is needed to puncture a heparin cap sealed at a flushing and injection port of the three-cavity catheter, and flushing fluid or liquid medicine is injected into the bladder under pressure.
The disadvantages of the above operation mode are that: (1) The intravenous injection needle has small flow and low flushing or medicine injection efficiency; (2) Intravenous route needle has the risk of unexpected slippage, and the probability of not only taking place the needle stick and hindering is higher, can lead to the catheter leakproofness not enough moreover, and the patient infects the risk higher, increases nurse's daily work load.
In order to overcome the defects of the prior art, people continuously explore and provide various solutions, for example, the Chinese utility model with the publication number of CN215024963U discloses a three-cavity catheter, a medicine injection port fixedly connected with of the three-cavity catheter is used for a hose sleeved on a medicine liquid filter of an infusion apparatus, and one end of the hose, which is far away from the three-cavity catheter, is provided with a sealing mechanism so as to aseptically seal the end part of the hose after the bladder is washed.
The Chinese utility model with publication number of CN215585200U discloses a catheter, which comprises a catheter body, wherein the tail end of the catheter body is provided with a flushing injection tube, one end of the flushing injection tube, which is far away from the main tube, is provided with a first hard tube section, and the port of the first hard tube section is provided with an external thread so as to be connected with a heparin cap or a needleless infusion connector.
However, the above-mentioned urinary catheters still suffer from the following drawbacks: (1) The fixed connection relation between the hose and the infusion apparatus is weak, and the hose and the infusion apparatus still have the risk of easy loosening; (2) The needle-free infusion joint is connected to the first hard pipe segment, so that the time is required, and the infection is easy to occur; and the existing needleless infusion joints are too complex and have higher cost.
Disclosure of Invention
The utility model aims at the above-mentioned problem, provide a three chamber catheters of needleless connector.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the utility model provides a three chamber catheters of needleless connector, includes the catheter main part, has on this catheter main part and washes the injection pipe, wash and to have set firmly or integrated into one piece have needleless type connector subassembly on the injection pipe, needleless type connector subassembly be located this wash the one end that the injection pipe kept away from the catheter main part.
In the three-cavity catheter without the needle connector, the needle-free connector assembly comprises a connector body which is integrally formed or fixedly connected with the flushing medicine injection pipe, and a puncture catheter communicated with the flushing medicine injection pipe is arranged in the connector body;
a joint groove is formed at one end of the joint body, which is far away from the flushing medicine injection pipe, a silicon cap is arranged in the joint groove, the conical tip of the puncture catheter extends into the joint groove and is provided with a liquid inlet side hole, and at least the liquid inlet side hole is sealed and wrapped by the silicon cap.
In the three-cavity catheter without the needle connector, a first axial limiting part used for limiting the conical tip in the connector groove is arranged between the puncture catheter and the connector body.
In the three-cavity catheter without the needle joint, the first axial limiting part comprises a first limiting cavity arranged in the joint body, the first limiting cavity is communicated with the joint groove and is positioned at one end, facing the flushing and medicine injecting pipe, of the joint groove, and the inner diameter of the first limiting cavity is larger than that of the joint groove;
the periphery of the puncture catheter is provided with a convex ring matched with the first limiting cavity.
In the three-cavity catheter without the needle connector, one side of the convex ring, which is back to the connector groove, is provided with a cylindrical tail part, and the cylindrical tail part has a wedge-shaped cross section.
In the three-cavity catheter without the needle joint, the cylindrical tail part is gradually flared from one end close to the convex ring to one end far away from the convex ring.
In the three-cavity catheter without the needle connector, a second axial limiting part used for limiting the silicon cap in the connector groove is arranged between the silicon cap and the connector body.
In the three-cavity catheter without the needle connector, the second axial limiting part comprises a second limiting cavity arranged in the connector body, the second limiting cavity is communicated with the connector groove and is positioned at one end, facing the flushing and medicine injecting pipe, of the connector groove, and the inner diameter of the second limiting cavity is larger than that of the connector groove;
one end of the silicon cap facing the flushing injection tube is provided with a clamping ring matched with the second limiting cavity.
In the three-cavity catheter without the needle joint, the second limiting cavity is communicated with the first limiting cavity, and the clamping ring is abutted against the convex ring.
In the three-cavity catheter without the needle connector, the outer periphery of the connector body is provided with an external thread, and the external thread is used for connecting an anti-fouling cover covering the connector groove or a sterilizing mechanism for sterilizing the silicon cap.
Compared with the prior art, the utility model has the advantages of:
1. the utility model directly arranges a needle-free joint component at the flushing medicine injection port of the three-cavity catheter, and the needle-free joint component is a closed integrated device, is not easy to fall off, ensures the tightness of the drainage of the catheter and has strong practicability; meanwhile, when the bladder of a patient is flushed and administered, the connector of the infusion apparatus can be directly butted with the needle-free connector assembly, and the connector and the needle-free connector assembly can be hermetically connected, so that compared with the traditional bladder flushing operation, the accidental slipping of a needle can be avoided, the incidence rate of needle stick injuries can be reduced, the risk of infection of the patient can be reduced, and the daily workload of nurses can be reduced; because can directly use transfusion system joint injection medicine and flush fluid, after medicine and flush fluid injection finish, can directly use the syringe to withdraw and carry out the urine sample and reserve and get, it is more convenient not only to take a sample, but also greatly reduced to reserve the pollution rate of getting in-process sample.
2. The utility model discloses a set up the joint ring and play fixed effect to silicon cap, avoid in the use, silicon cap roll-off or break away from the joint inslot roll-off, stability is stronger, and the internal diameter in the spacing chamber of second is greater than the internal diameter in joint groove, and the joint effect is better.
3. The utility model discloses a set up the bulge loop on the puncture pipe and realize spacing to the axial of puncture pipe, and the tube-shape afterbody on the bulge loop is the wedge because its cross-section, and when the puncture pipe received the extrusion of silicon cap, the tube-shape afterbody can play the effect of supplementary fixed puncture pipe.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of a partial structure of the present invention.
In the figure: the catheter comprises a catheter main body 1, a flushing medicine injection pipe 2, a needle-free connector component 3, a connector body 4, a puncture catheter 5, a connector groove 6, a silicon cap 7, a conical tip 8, a liquid inlet side hole 9, a first axial limiting part 10, a first limiting cavity 11, a convex ring 12, a cylindrical tail part 13, a second axial limiting part 14, a second limiting cavity 15, a clamping ring 16 and an antifouling cover 17.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 and 2, the three-cavity catheter without the needle joint comprises a catheter body 1, wherein the catheter body 1 is provided with a flushing medicine injection pipe 2, the flushing medicine injection pipe 2 is fixedly provided with or integrally formed with a needle-free joint assembly 3, and the needle-free joint assembly 3 is located at one end, away from the catheter body 1, of the flushing medicine injection pipe 2.
In this embodiment, when washing and bladder dosing for patient's bladder, the transfusion system connects and washes 3 mutual sealing connection of needleless connector assembly on the injection pipe 2, reduce the risk that the patient infects, alleviate nurse's daily work load, more traditional bladder washes, less the unexpected slippage of syringe needle, the incidence of acupuncture wound has been reduced, be convenient for leave and get urine sample, use the syringe to withdraw and can leave and get, the pollution rate of leaving and getting in-process sample has been reduced, needleless connector assembly 3 is airtight integrative device, be difficult for droing, the seal of catheter drainage has been guaranteed, and the practicality is stronger.
Referring to fig. 1 and 2, the needle-free connector assembly 3 includes a connector body 4 integrally formed with or fixedly connected to the flushing injection tube 2, and a puncture catheter 5 communicated with the flushing injection tube 2 is disposed in the connector body 4;
the end of the connector body 4 far away from the flushing medicine injection tube 2 is formed with a connector groove 6, a silicon cap 7 is arranged in the connector groove 6, a conical tip 8 of the puncture catheter 5 extends into the connector groove 6 and is provided with a liquid inlet side hole 9, and at least the liquid inlet side hole 9 is sealed and wrapped by the silicon cap 7.
Specifically, when the bladder of a patient is flushed and dosed, the connector of the infusion apparatus is abutted against the connector body 4 on the flushing medicine injection pipe 2 and is connected with an infusion pipe or an injection pipe through the puncture catheter 5, liquid is communicated through the liquid inlet side hole 9, the liquid inlet side hole 9 is hermetically wrapped by the silicon cap 7, and the sealing performance is good.
Referring to fig. 1 and 2, a first axial stopper 10 for limiting the tapered tip 8 in the joint groove 6 is provided between the puncture catheter 5 and the joint body 4.
In this embodiment, the first axial limiting member 10 plays a role in limiting and fixing the tapered tip 8.
The first axial limiting part 10 comprises a first limiting cavity 11 arranged in the joint body 4, the first limiting cavity 11 is communicated with the joint groove 6 and is positioned at one end of the joint groove 6 facing the flushing injection pipe 2, and the inner diameter of the first limiting cavity 11 is larger than that of the joint groove 6;
the puncture catheter 5 is provided with a convex ring 12 matched with the first limiting cavity 11 at the periphery.
In this embodiment, the protruding ring 12 is used to fix the tapered tip 8 of the puncture catheter 5, so as to prevent the tapered tip 8 of the puncture catheter 5 from sliding during use, and thus, the stability is high.
As shown in fig. 2, the side of the collar 12 facing away from the joint groove 6 has a cylindrical tail 13, and the cylindrical tail 13 has a wedge-shaped cross section.
In this embodiment, the cylindrical tail 13 can play a role in connecting and clamping the convex ring 12 and the joint body 4, thereby improving the structural stability.
The cylindrical tail part 13 is gradually expanded from one end close to the convex ring 12 to one end far away from the convex ring 12, and the clamping effect is better.
A second axial limiting piece 14 for limiting the silicon cap 7 in the joint groove 6 is arranged between the silicon cap 7 and the joint body 4.
In this embodiment, the second axial limiting member 14 fixes the silicon cap 7, so as to prevent the silicon cap 7 from slipping out or separating from the joint slot 6 during the use process, and the stability is strong.
As shown in fig. 2, the second axial limiting member 14 includes a second limiting cavity 15 opened in the connector body 4, the second limiting cavity 15 is communicated with the connector groove 6 and is located at one end of the connector groove 6 facing the flushing injection tube 2, and an inner diameter of the second limiting cavity 15 is greater than an inner diameter of the connector groove 6;
the end of the silicon cap 7 facing the flushing injection tube 2 is provided with a clamping ring 16 matched with the second limiting cavity 15.
In this embodiment, the clamping ring 16 has a fixing effect on the silicon cap 7, so as to prevent the silicon cap 7 from slipping out or separating from the joint groove 6 during use, and has high stability, and the inner diameter of the second limiting cavity 15 is greater than that of the joint groove 6, so that the clamping effect is good.
With reference to fig. 1 and 2, the second limiting cavity 15 is communicated with the first limiting cavity 11, and the snap ring 16 is abutted against the convex ring 12.
As shown in fig. 1, the joint body 4 has an external thread on its outer circumference for connecting an anti-fouling cover 17 covering the joint groove 6 or a sterilizing mechanism for sterilizing the silicon cap 7.
In this embodiment, the antifouling cover 17 prevents dust and bacteria from entering the joint groove 6, and is excellent in safety and hygiene.
The utility model discloses a theory of operation is:
when the urinary bladder of a patient is washed and administered, the connector of the infusion apparatus is abutted against the connector body 4 on the washing and injection tube 2 and is connected with an infusion tube or an injection tube through the puncture catheter 5, liquid is communicated through the liquid inlet side holes 9, the liquid inlet side holes 9 are hermetically wrapped by the silicon cap 7, the sealing property is better, the risk of infection of the patient is reduced, the daily workload of nurses is lightened, compared with the traditional urinary bladder washing, the accidental slippage of a needle head is reduced, the incidence rate of needle stick injury is reduced, the urine specimen can be conveniently kept and taken, the urine specimen can be kept and taken by using the syringe to suck back, the pollution rate of the specimen in the keeping and taking process is reduced, the washing and injection tube 2 is a sealed integrated device and is not easy to fall off, the sealing property of the drainage of the catheter is ensured, and the practicability is stronger,
the convex ring 12 is used for fixing the conical tip 8 of the puncture catheter 5, so that the conical tip 8 of the puncture catheter 5 is prevented from sliding in the using process, the stability is strong,
the cylindrical tail part 13 can play a role in connecting and clamping the convex ring 12 and the joint body 4, thereby improving the structural stability,
the clamping ring 16 has a fixing function on the silicon cap 7, so as to prevent the silicon cap 7 from sliding out of or separating from the joint groove 6 during use, the stability is strong, the inner diameter of the second limiting cavity 15 is larger than that of the joint groove 6, the clamping effect is good,
the antifouling cover 17 prevents dust and bacteria from entering the joint groove 6, and is good in safety and sanitation.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the spirit of the invention.
Although the terms catheter body 1, irrigation syringe 2, needle-free adapter assembly 3, adapter body 4, piercing catheter 5, adapter groove 6, silicone cap 7, tapered tip 8, inlet opening 9, first axial stop 10, first stop lumen 11, collar 12, cylindrical tail 13, second axial stop 14, second stop lumen 15, snap ring 16, anti-fouling cover 17, etc. are used more extensively herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.
Claims (9)
1. A three-cavity catheter without a needle joint comprises a catheter body (1), wherein the catheter body (1) is provided with a flushing medicine injection pipe (2), and is characterized in that a needle-free joint component (3) is fixedly arranged on the flushing medicine injection pipe (2) or integrally formed on the flushing medicine injection pipe (2), and the needle-free joint component (3) is positioned at one end, far away from the catheter body (1), of the flushing medicine injection pipe (2);
the needle-free connector assembly (3) comprises a connector body (4) which is integrally formed or fixedly connected with the flushing medicine injection pipe (2), and a puncture catheter (5) communicated with the flushing medicine injection pipe (2) is arranged in the connector body (4);
a joint groove (6) is formed at one end of the joint body (4) far away from the flushing medicine injection pipe (2), a silicon cap (7) is arranged in the joint groove (6), a conical tip (8) of the puncture catheter (5) extends into the joint groove (6) and is provided with a liquid inlet side hole (9), and at least the liquid inlet side hole (9) is hermetically wrapped by the silicon cap (7);
comprises an infusion apparatus joint, wherein the infusion apparatus joint is abutted with a joint body (4) on the flushing and medicine injecting tube (2) and is connected with an infusion tube or an injection tube through a puncture catheter (5).
2. Three-chamber needleless connector (urinary catheter) according to claim 1, characterized in that a first axial stop (10) for limiting the conical tip (8) in the connector groove (6) is provided between the puncture catheter (5) and the connector body (4).
3. The three-cavity catheter without the needle connector according to claim 2, wherein the first axial limiting member (10) comprises a first limiting cavity (11) formed in the connector body (4), the first limiting cavity (11) is communicated with the connector groove (6) and is positioned at one end of the connector groove (6) facing the flushing injection tube (2), and the inner diameter of the first limiting cavity (11) is larger than that of the connector groove (6);
the periphery of the puncture catheter (5) is provided with a convex ring (12) matched with the first limiting cavity (11).
4. Three-chamber needleless connector catheter according to claim 3, characterized in that the side of said protruding ring (12) facing away from the connector slot (6) is provided with a cylindrical tail (13), said cylindrical tail (13) having a wedge-shaped cross-section.
5. The three-cavity needleless connector urinary catheter according to claim 4, wherein the cylindrical tail portion (13) is gradually flared from the end close to the convex ring (12) to the end far from the convex ring (12).
6. The three-cavity catheter without needle connector according to claim 5, characterized in that a second axial limiting member (14) for limiting the silicon cap (7) in the connector groove (6) is arranged between the silicon cap (7) and the connector body (4).
7. The three-cavity catheter without the needle connector according to claim 6, characterized in that the second axial limiting member (14) comprises a second limiting cavity (15) arranged in the connector body (4), the second limiting cavity (15) is communicated with the connector groove (6) and is positioned at one end of the connector groove (6) facing the washing and medicine injecting tube (2), and the inner diameter of the second limiting cavity (15) is larger than that of the connector groove (6);
one end of the silicon cap (7) facing the flushing injection tube (2) is provided with a clamping ring (16) matched with the second limiting cavity (15).
8. The three-cavity catheter without needle connector according to claim 7 is characterized in that the second limit cavity (15) is communicated with the first limit cavity (11), and the clamping ring (16) is abutted against the convex ring (12).
9. A three-cavity needleless connector catheter according to any one of claims 2 to 8, characterized in that the outer periphery of the connector body (4) is provided with an external thread for connecting a stain-proof cover (17) covering the connector groove (6) or a sterilizing mechanism for sterilizing the silicon cap (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220384259.0U CN217854146U (en) | 2022-02-24 | 2022-02-24 | Three-cavity catheter without needle joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220384259.0U CN217854146U (en) | 2022-02-24 | 2022-02-24 | Three-cavity catheter without needle joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217854146U true CN217854146U (en) | 2022-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220384259.0U Active CN217854146U (en) | 2022-02-24 | 2022-02-24 | Three-cavity catheter without needle joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217854146U (en) |
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2022
- 2022-02-24 CN CN202220384259.0U patent/CN217854146U/en active Active
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