CN213285221U - Three-cavity catheter - Google Patents
Three-cavity catheter Download PDFInfo
- Publication number
- CN213285221U CN213285221U CN202021684038.2U CN202021684038U CN213285221U CN 213285221 U CN213285221 U CN 213285221U CN 202021684038 U CN202021684038 U CN 202021684038U CN 213285221 U CN213285221 U CN 213285221U
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- China
- Prior art keywords
- catheter
- connecting piece
- medicine injection
- port
- sections
- 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.)
- Expired - Fee Related
Links
- 238000002347 injection Methods 0.000 claims abstract description 74
- 239000007924 injection Substances 0.000 claims abstract description 74
- 239000003814 drug Substances 0.000 claims abstract description 47
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 229940079593 drug Drugs 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 230000002485 urinary effect Effects 0.000 claims description 2
- 230000003044 adaptive effect Effects 0.000 claims 1
- 208000015181 infectious disease Diseases 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 8
- 239000002775 capsule Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000001802 infusion Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 210000003708 urethra Anatomy 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a three-cavity catheter. This three chamber catheters includes: the medicine injection device comprises a pipe body, a medicine injection device and a control device, wherein the pipe body is used for forming three branch pipes at the tail end outside a patient body, and the tail end of a medicine injection branch pipe in the three branch pipes is provided with a medicine injection port; the joint Assembly sets up in injection mouth department, and it includes: at least one part of the connecting piece is inserted in the medicine injection port, a through cavity is arranged in the connecting piece, and a fixing part is formed at the port of the connecting piece facing the outer side of the medicine injection port; the first end of the sealing plug is provided with an adapting part matched with the fixing part so as to seal the port of the connecting piece. The utility model discloses a scheme shutoff is reliable, and is easy and simple to handle, has reduced medical personnel's work load and patient's infection risk greatly.
Description
Technical Field
The utility model relates to a medical apparatus, in particular to a three-cavity catheter.
Background
A catheter is a conduit inserted from the urethra into the bladder to drain urine, typically made of natural rubber, silicone rubber or polyvinyl chloride (PVC). The three-cavity catheter is one of the catheters which is commonly used, and comprises a capsule body injection cavity (a water injection cavity or an inflation cavity), a medicine injection cavity and a liquid discharge cavity, and is mainly used for short-term indwelling catheterization, intravesical liquid medicine instillation, flushing, drainage and the like.
The head end of the three-cavity catheter is generally a tapered tip for insertion into a patient. The capsule injection cavity, the medicine injection cavity and the liquid discharge cavity are respectively branched at the tail end of the catheter and are respectively provided with a capsule injection port, a medicine injection port and a liquid discharge port. The utricule injection port is used for forming fixed utricule through injecting gas or liquid in the position that the catheter is close to the head end, and the injection mouth is used for injecting the washing medicine in to the bladder, and the leakage fluid dram generally is used for connecting the drainage bag for the liquid that the discharge bladder flows out.
In some use occasions, three chamber catheters need to be kept somewhere, and the injection mouth generally is in idle state this moment, and medical personnel need carry out the shutoff operation to this injection mouth, and the injection mouth does not have dedicated shutoff part in the prior art, generally can adopt infusion joint to carry out the shutoff, and the shutoff operation is relatively complicated, has increased medical personnel's work load and patient's infection risk.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a three chamber catheters convenient to carry out the shutoff to the injection mouth.
In particular, the utility model provides a three-cavity catheter. This three chamber catheters includes:
the medicine injection device comprises a pipe body, a medicine injection device and a control device, wherein the pipe body is used for forming three branch pipes at the tail end outside a patient body, and the tail end of a medicine injection branch pipe in the three branch pipes is provided with a medicine injection port; the joint Assembly sets up in injection mouth department, and it includes: at least one part of the connecting piece is inserted in the medicine injection port, a through cavity is arranged in the connecting piece, and a fixing part is formed at the port of the connecting piece facing the outer side of the medicine injection port; the first end of the sealing plug is provided with an adapting part matched with the fixing part so as to seal the port of the connecting piece.
Optionally, the connector comprises a plurality of segments of different outer diameters, the plurality of segments being configured to increase in outer diameter along an increasing distance of insertion into one end of the connector for securement with the injection port with the segments matching the inner diameter of the injection port.
Optionally, adjacent segments are connected by smooth tapered segments.
Optionally, the fixation portion is configured as an internal thread; the adapter portion is configured as an external thread that mates with the internal thread.
Optionally, the fixing part is configured in a tapered shape that is gradually widened toward the outer side of the medicine injection port; the adapter portion is configured as a tapered plug that mates with the taper.
Optionally, the connector further comprises: the elastic valve is arranged at the position, adjacent to the fixing part, of the cavity, a slit is formed in the center of the elastic valve, and a communication opening is formed when the slit is stretched.
Optionally, the slit is in the shape of a straight line or a cross.
Alternatively, the resilient valve is made of silicone or rubber.
Optionally, the end of the plug is provided with a hand grip.
The utility model discloses a three chamber catheters, the department sets up joint Assembly at the injection mouth, and the injection mouth is inserted to this joint Assembly's connecting piece one end, and the port and the shutoff stopper in the injection mouth outside cooperate, carry out the shutoff when the injection mouth is in idle state. The scheme has reliable plugging and simple and convenient operation, and greatly reduces the workload of medical personnel and the infection risk of patients.
Further, the utility model discloses a three chamber catheters have optimized and improved to the concrete structure of connecting piece to the reliability has been improved.
Furthermore, the three-cavity catheter of the utility model is also provided with an elastic valve in the connecting piece, and a communicating opening can be formed when the slit is opened, thereby facilitating the connection of the drug injecting opening and the lavage appliance.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic view of a tube of a three-lumen catheter according to an embodiment of the present invention;
fig. 2 is an exploded schematic view of components of a connector assembly of a three-lumen urinary catheter according to an embodiment of the present invention;
FIG. 3 is a schematic view of a connector assembly of a three-lumen catheter inserted into a drug-infusion manifold, according to an embodiment of the present invention;
FIG. 4 is a schematic view of a connector assembly of a three-lumen catheter connected to an injection device according to an embodiment of the present invention; and
fig. 5 is a schematic partial enlarged view at a in fig. 4.
Detailed Description
Fig. 1 is a schematic view of a tube 10 of a three-lumen catheter according to an embodiment of the present invention. Fig. 2 is an exploded view of components of a connector assembly 20 of a three-lumen catheter according to an embodiment of the present invention. Fig. 3 is a schematic illustration of the connector assembly 20 of a three-lumen catheter inserted into a drug-infusion manifold 140, according to an embodiment of the present invention.
The three-lumen catheter of this embodiment can generally comprise: a pipe body 10 and a fitting assembly 20.
The head end of the tube body 10 of the three-cavity catheter is generally a conical tip 11 and is used for being inserted into a patient. The tail end of the tube body 10, which is used for being placed outside the patient body, forms three branch tubes, namely a balloon filling branch tube 120 connected with a balloon injection cavity, a drug injection branch tube 140 connected with a drug injection cavity and a liquid discharge branch tube 130 connected with a liquid discharge cavity. The capsule filling manifold 120 has a capsule injection port at the end, the drug injection manifold 140 has a drug injection port at the end, and the fluid discharge manifold 130 has a fluid discharge port at the end.
The connector assembly 20 is disposed at the medication port. The joint assembly 20 may include: a connecting piece 21 and a blocking plug 22. At least a part of the connecting piece 21 is inserted into the medicine injection port, a through cavity 210 is arranged in the connecting piece, and a port of the connecting piece 21 facing the outer side of the medicine injection port forms a fixing part 211. When the injection port requires injection of a medicine, the injection device 30 may be inserted into the connector 21 and the medicine may be injected into the tube 10 through the cavity 210.
The first end of the sealing plug 22 is formed with an adapting portion 221 which is matched with the fixing portion 211 to seal the port of the connecting member 21. The stopper 22 is detachably connected to the connecting member 21, and when the medicine injection port is not in use, the stopper 22 is connected to the connecting member 21 so that the medicine injection port is closed.
In an alternative embodiment, the fixing portion 211 may be configured as an internal thread; the fitting portion 221 may be configured as an external thread to be fitted with the internal thread. That is, the plug 22 and the connecting member 21 may be connected by screw threads.
In an alternative embodiment, the fixing portion 211 may be configured in a tapered shape that is gradually widened toward the outside of the medicine injection port; the fitting 221 may be configured as a tapered plug that mates with a taper.
For ease of handling, the end of the occluding plug 22 may be provided with a hand grip 222. In operation, an operator may hold the handle 222 and thread or plug the plug 22 into the port of the connector 21.
In order to improve the sealing performance, the fixing portion 211 and the fitting portion 221 may be provided with a gasket, a packing, or the like to improve the sealing performance.
To improve the versatility of the connector assembly 20 in view of the different tube diameters of the three-lumen catheters of different sizes, the connector 21 may comprise a plurality of segments 213 having different outer diameters, the plurality of segments 213 being configured to increase in distance along the end inserted into the connector 21 with a corresponding increase in outer diameter for securing with the injection port using the segments 213 that are adapted to the inner diameter of the injection port. The mating segments 213 form an interference fit with the injection port to secure the fitting assembly 20 to the injection port.
According to the three-cavity catheter of the embodiment, the joint component 20 is arranged at the medicine injection port, one end of the connecting part 21 of the joint component 20 is inserted into the medicine injection port, the port on the outer side of the medicine injection port is matched with the plugging plug 22, and plugging is performed when the medicine injection port is in an idle state. The scheme has reliable plugging and simple and convenient operation, and greatly reduces the workload of medical personnel and the infection risk of patients.
The connector 21 may also include a resilient valve 212. The elastic valve 212 is provided in the cavity 210 at a position adjacent to the fixing portion 211, and a slit is opened in the center of the elastic valve 212 to form a communication port when the slit is opened. The elastic valve 212 may be made of silicone or rubber. The slit may be in the shape of a straight line or a cross. When the connecting piece 21 is connected with the blocking plug 22, the end part of the blocking plug 22 is positioned outside the elastic valve 212, and the elastic valve 212 is kept closed.
Fig. 4 is a schematic view of a three-lumen catheter adapter assembly 20 connected to an injection device 30 according to an embodiment of the present invention. Fig. 5 is a schematic partial enlarged view at a in fig. 4. When the medicine injection port needs to inject medicine, the blocking plug 22 is removed, the injection device 30 can be inserted into the connecting piece 21, and the end part of the injection device 30 props open the slit of the elastic valve 212 to form a communication port. The injection device 30 can inject a medicament into the tube 10 through the cavity 210. Due to the elasticity of the elastic valve 212, the slit resumes a shape after the injection device 30 is withdrawn. So that the adapter assembly 20 of the three-lumen catheter can be reused.
The three-cavity catheter of this embodiment can form the intercommunication mouth when its slit is propped open through setting up elasticity valve 212, has improved the leakproofness on the one hand, has made things convenient for being connected of injection mouth and lavage utensil, can also make three-cavity catheter used repeatedly.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (9)
1. A three-lumen urinary catheter, comprising:
the device comprises a tube body, a drug injection device and a control device, wherein the tube body is used for forming three branch tubes at the tail end outside a patient body, and the tail ends of drug injection branch tubes in the branch tubes are provided with drug injection ports;
the connector assembly, set up in medicine injection mouth department, it includes:
the connecting piece is at least partially inserted into the medicine injection port, a through cavity is formed in the connecting piece, and a fixing part is formed by a port of the connecting piece facing the outer side of the medicine injection port;
and the first end of the sealing plug is provided with an adaptive part matched with the fixed part so as to seal the port of the connecting piece.
2. The three-lumen catheter of claim 1, wherein the catheter is a catheter tube
The connecting piece comprises a plurality of sections with different outer diameters, the sections are configured to increase along the distance inserted into one end of the connecting piece, and the outer diameters of the sections are correspondingly increased, so that the sections are fixed with the medicine injection opening by the sections matched with the inner diameter of the medicine injection opening.
3. The three-lumen catheter of claim 2, wherein the catheter is a catheter tube
Adjacent sections are connected by smooth tapered sections.
4. The three-lumen catheter of claim 1, wherein the catheter is a catheter tube
The fixing part is configured as an internal thread;
the adapter portion is configured as an external thread that mates with the internal thread.
5. The three-lumen catheter of claim 1, wherein the catheter is a catheter tube
The fixing part is configured in a tapered shape which is gradually widened towards the outer side of the medicine injection port;
the adapter portion is configured as a tapered plug that mates with the taper.
6. The three-lumen catheter of claim 1, wherein the connector further comprises:
the elastic valve is arranged at the position, adjacent to the fixing part, of the cavity, a slit is formed in the center of the elastic valve, and a communication opening is formed when the slit is expanded.
7. The three-lumen catheter of claim 6, wherein the catheter is a catheter tube
The slit is in a straight shape or a cross shape.
8. The three-lumen catheter according to claim 6, wherein the elastic valve is made of silicone or rubber.
9. The three-lumen catheter of claim 1, wherein the blocked end is provided with a hand-held handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021684038.2U CN213285221U (en) | 2020-08-13 | 2020-08-13 | Three-cavity catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021684038.2U CN213285221U (en) | 2020-08-13 | 2020-08-13 | Three-cavity catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213285221U true CN213285221U (en) | 2021-05-28 |
Family
ID=76025456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021684038.2U Expired - Fee Related CN213285221U (en) | 2020-08-13 | 2020-08-13 | Three-cavity catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213285221U (en) |
-
2020
- 2020-08-13 CN CN202021684038.2U patent/CN213285221U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210528 |