CN220757760U

CN220757760U - Subcutaneous tunnel flusher for peritoneal dialysis

Info

Publication number: CN220757760U
Application number: CN202321886985.3U
Authority: CN
Inventors: 朱伟平
Original assignee: Fifth Affiliated Hospital of Sun Yat Sen University
Current assignee: Fifth Affiliated Hospital of Sun Yat Sen University
Priority date: 2023-07-17
Filing date: 2023-07-17
Publication date: 2024-04-12
Anticipated expiration: 2033-07-17

Abstract

The utility model discloses a subcutaneous tunnel flusher for peritoneal dialysis, which comprises a drug delivery device, a transfusion tube, a driving device, a connecting part and an injection head; one end of the infusion tube is connected with the drug delivery device, the other end of the infusion tube is connected with the driving device firstly and then is connected with the injection head through the connecting part, and the driving device is used for driving liquid in the infusion tube to flow unidirectionally and be sprayed out of the injection head; the nozzle of the injection head is arc-shaped. The utility model can accurately control the flow speed and the flow quantity, realize continuous and effective flushing of the subcutaneous tunnel and avoid the influence of the existing manual flushing. And because the nozzle is arc-shaped, the damage to the peritoneal dialysis catheter is avoided in the use process. Effectively solves the practical problem of flushing the subcutaneous tunnel of peritoneal dialysis clinically, and can be applied to different scenes such as trauma, operation sinus tract, operation incision infection and the like.

Description

Subcutaneous tunnel flusher for peritoneal dialysis

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a subcutaneous tunnel flusher.

Background

Peritoneal dialysis is one of the effective therapeutic modalities for chronic renal failure. During peritoneal dialysis, the peritoneal dialysis catheter is tunneled from the peritoneal cavity through the abdominal wall subcutaneously out of the skin. At present, most of peritoneal dialysis catheters applied to clinic are made of silica gel materials, and subcutaneous tunnels formed in the process that the catheters penetrate out of the skin are communicated with the outside, so that the catheters are easily infected due to improper nursing or personal hygiene and other reasons, and suppurative tunnelitis is caused. Once suppurative tunnel inflammation occurs, the tunnel needs to be flushed in time to remove pus and antibiotics are injected to relieve and treat the inflammation. However, because of the compactness of the skin at the subcutaneous tunnel portal and the presence of the peritoneal dialysis catheter residing therein, if directly flushed with a conventional needle syringe, the sharp needle is susceptible to breakage of the peritoneal dialysis catheter and risk of damaging adjacent tissue.

In connection with clinical examples and searches of prior art, in the related art in recent years, there have been disclosed some irrigators for cleaning subcutaneous tunnels, such as a central venous catheter tunnel irrigator with dacron sheath as disclosed in chinese patent CN217886656U, in which a flexible needle for administration is disclosed, but the size of the device is only suitable for subcutaneous tunnels for central venous catheters, while the size of the subcutaneous tunnel required for peritoneal dialysis catheters would be much larger than that of the venous catheter subcutaneous tunnel; the subcutaneous tunnel of the peritoneal dialysis is longer than the subcutaneous tunnel of the intravenous catheter, the hose needle in the prior art is difficult to enter the deep part of the narrow subcutaneous tunnel of the peritoneal dialysis, and the device is difficult to flush in all directions by 360 degrees without dead angles, so that the device is not suitable for flushing the subcutaneous tunnel of the peritoneal dialysis catheter. In addition, in the prior art, most of the flushers for the subcutaneous tunnel of peritoneal dialysis are manually flushed (such as chinese patent CN114767983 a), but the manual flushing cannot accurately control the flow rate and dosage of the liquid medicine, and the too fast flow rate also easily affects the internal tissues of the subcutaneous tunnel to some extent.

It can be seen that there is no suitable instrument in the prior art that can be used for irrigation of the subcutaneous tunnel created by the peritoneal dialysis catheter. Therefore, it is necessary to develop a special peritoneal dialysis subcutaneous tunnel irrigator for cleaning and treatment of the peritoneal dialysis catheter subcutaneous tunnel.

Disclosure of Invention

The utility model aims to overcome the defects and shortcomings in the prior art and provide a subcutaneous tunnel flusher for peritoneal dialysis.

The above object of the present utility model is achieved by the following technical solutions:

the utility model provides a subcutaneous tunnel flusher for peritoneal dialysis, which comprises a transfusion tube, a driving device, a connecting part and an injection head; one end of the infusion tube is connected with the drug delivery device, the other end of the infusion tube is connected with the driving device, and then the driving device is connected with the injection head through the connecting part, and the driving device is used for driving liquid in the infusion tube to flow unidirectionally and be sprayed out of the injection head.

Specifically, a transfusion tube is arranged in the driving device, two ends of the transfusion tube extend out of a liquid inlet and a liquid outlet of the driving device respectively, one end of the liquid inlet is connected with the drug delivery device, and one end of the liquid outlet is connected with the injection head through a connecting part, so that liquid in the transfusion tube is driven to flow unidirectionally.

The utility model provides a subcutaneous tunnel flusher for peritoneal dialysis, which automatically and directionally guides liquid medicine in a drug administration device into a subcutaneous tunnel through a driving device, can accurately control the flow speed and the flow quantity, realizes continuous and effective flushing of the subcutaneous tunnel, and avoids the influence of the existing manual flushing. In the scheme provided by the utility model, the injection head nozzle is further designed, is different from the conventional common sharp needle point, is very suitable for being inserted into a subcutaneous tunnel to clean pus, and avoids damage to a peritoneal dialysis catheter in the use process due to the arc-shaped nozzle.

When the device is used, the injection head firstly stretches into the subcutaneous tunnel, the driving device is opened, the liquid medicine in the medicine feeding device flows unidirectionally to the injection head under the driving action of the driving device, and is injected from the tail end opening of the injection head, so that the subcutaneous tunnel is flushed.

Further, the nozzle of the injection head is arc-shaped.

Further, the driving device comprises a shell, a driving wheel, a motor, a controller and a power supply module which are sequentially arranged in the shell from top to bottom; the driving wheel is connected with the motor, the motor is electrically connected with the controller, and the controller is electrically connected with the power supply module; the power supply module supplies power to the motor through the controller so as to drive the driving wheel to rotate.

Further, the driving device further comprises a display screen, and the display screen is used for displaying the operation parameters of the driving device in real time.

Further, the driving wheel comprises a rotating plate, a rotating rod is arranged in the middle of the rotating plate, the rotating rod is connected with a motor, and 4 small pulleys distributed in a cross shape are arranged on the periphery of the middle of the rotating plate; when the controller starts the motor, the motor drives the rotating rod to rotate, the rotating rod drives the rotating plate to rotate, and the rotating plate drives the small pulley to rotate; the gap of 4mm is arranged between the small pulley and the shell, the pipeline of the infusion tube can be plugged into the gap between the small pulley and the shell, and the liquid in the pipeline of the infusion apparatus can be driven to flow unidirectionally by the rotation of the small pulley, which is similar to a blood pump and a peristaltic pump.

Further, the power supply module is a lithium battery.

Further, the controller comprises a motor speed controller and a lithium battery charging controller, and the rotating speed of the motor can be adjusted through the speed controller so as to adjust the flow rate of liquid in a pipeline of the infusion apparatus; the charging controller can be connected with an external power supply to charge the lithium battery and display the electric quantity. The subcutaneous tunnel flusher does not need manual operation in the flushing process, and can accurately control the dosage, the flow rate and other parameters of each dosing, thereby realizing automatic flushing treatment.

In the scheme provided by the utility model, a connecting part is further designed, so that the injection head can be connected with the infusion tube through the connecting part, and 360-degree free rotation can be realized between the injection head and the connecting part after connection, so that the flushing treatment under any angle can be realized, and the use is more flexible. Specifically, the outer side wall of one end of the connecting part connected with the injection head is provided with spring steel balls which are distributed in an annular mode, and the inner side of one end of the injection head connected with the connecting part is provided with a clamping groove matched with the spring steel balls. The connection part is connected with the injection head and can control the injection of the liquid containing the medicine.

Further, the number of the spring steel balls is 3-5, and the diameter of the steel balls is 1.2-1.8 mm; the inner diameter of one end of the injection head connected with the connecting part is 0.8-1.2 cm, the outer diameter is 1.0-1.4 cm, and 3-5 clamping grooves are arranged on the inner side. When the connecting part is placed in the clamping groove opening, the steel balls are embedded into the clamping groove, so that the tight connection between the injection head and the connecting part is realized.

Preferably, the number of the spring steel balls is 3, and the diameter of the steel balls is 1.5mm; the inner diameter of one end of the injection head connected with the connecting part is 1.0cm, the outer diameter is 1.2cm, and three clamping grooves are formed in the inner side.

Further, a sealing ring is further arranged at the joint of the connecting part and the injection head to ensure the air tightness in the infusion tube, so that the tight connection between the injection head and the connecting part is realized.

Preferably, the sealing ring is a rubber sealing ring.

Further, the length of the injection head is 5-8 cm, and the width is 3-4 mm. The specification of the injection head is suitable for the subcutaneous tunnel, is very suitable for being inserted into the subcutaneous tunnel to clean pus, and can be used for safely injecting the drug-containing liquid into the subcutaneous tunnel.

Further, the injection head is made of stainless steel.

Further, the connecting part and the arc-shaped injection head are designed for disposable use.

In addition, the drug delivery device and the infusion tube can be common devices in clinical treatment. Further, the drug delivery device is an infusion bottle. Further, the infusion tube is a common medical infusion set.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The subcutaneous tunnel flusher for peritoneal dialysis provided by the utility model does not need manual operation, adopts the driving device to drive the liquid medicine to flow, can realize effective continuous flushing through simple operation, can accurately control the flow rate and the dosage, realizes better flushing effect, and avoids the influence of the existing manual flushing.

(2) The nozzle of the injection head of the subcutaneous tunnel flusher for peritoneal dialysis provided by the utility model is arc-shaped, the injection head body is long and the radian is moderate, the injection head is very suitable for being inserted into a subcutaneous tunnel to clean pus, and the damage to a peritoneal dialysis catheter is avoided in the use process due to the arc-shaped nozzle.

(3) The subcutaneous tunnel flusher for peritoneal dialysis provided by the utility model can flush the deep part of a subcutaneous tunnel by 360 degrees in all directions without dead angles, can be connected with a common medical infusion set and an infusion bottle, has universality and convenience, and can be used for adding medicines and continuing bottles according to the needs of illness states.

(4) The peritoneal dialysis subcutaneous tunnel flusher provided by the utility model has the advantages of simple and exquisite structure, convenience in operation and good cleaning effect, solves the practical problem of flushing the peritoneal dialysis subcutaneous tunnel in clinical treatment, and can be further applied to other different fields such as trauma, operation sinus tract, operation incision infection and the like.

Drawings

Fig. 1 is a schematic general structural view of a subcutaneous tunnel flusher for peritoneal dialysis.

Fig. 2 is a schematic diagram of a driving device part of a subcutaneous tunnel flusher for peritoneal dialysis.

Fig. 3 is a schematic view of the connection part of the subcutaneous tunnel flusher for peritoneal dialysis together with the injection head.

Fig. 4 is a schematic diagram of the structure of an injector head of a subcutaneous tunnel flusher for peritoneal dialysis.

Fig. 5 is a schematic cross-sectional view of a connecting portion clip of a subcutaneous tunnel flusher for peritoneal dialysis.

Reference numerals: 1-a drug delivery device; 2-a transfusion tube; 3-a driving device; 4-connecting part; 5-an injection head; 30-driving wheels; 31-a housing; 32-a liquid inlet; 33-a liquid outlet; 34-an electric motor; 35-a controller; 36-a power supply module; 41-spring steel balls; 51-clamping grooves; 52-sealing ring.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Example 1

Referring to fig. 1, a subcutaneous tunnel flusher for peritoneal dialysis comprises a drug delivery device 1, a transfusion tube 2, a driving device 3, a connecting part 4 and an injection head 5; one end of the infusion tube 2 is connected with the drug delivery device 1, the other end is connected with the driving device 3 firstly and then is connected with the injection head 5 through the connecting part 4, and the driving device is used for driving liquid in the infusion tube to flow unidirectionally and be sprayed out of the injection head 5; the nozzle of the injection head 5 is arc-shaped; specifically, both ends of the infusion tube 2 extend from a liquid inlet 32 and a liquid outlet 33 of the driving device 3 (see fig. 2), one end of the liquid inlet 32 is connected with the administration device 1, and one end of the liquid outlet 33 is connected with the injection head 5 through the connecting portion 4.

Wherein, the drug delivery device 1 is an infusion bottle, and the infusion tube 2 is a common medical infusion set.

According to the peritoneal dialysis subcutaneous tunnel flusher, the liquid medicine in the drug delivery device 1 is automatically and directionally guided into the subcutaneous tunnel through the driving device 3, and meanwhile, the flow speed and the flow quantity can be accurately controlled, so that the subcutaneous tunnel can be continuously and effectively flushed;

in addition, the injection head 5 is specially designed, and the nozzle is arc-shaped unlike a common sharp needle point, is very suitable for being inserted into a subcutaneous tunnel for cleaning pus, and does not damage a peritoneal dialysis catheter.

Wherein the length of the injection head is 5-8 cm, the width is 3-4 mm, and the injection head is made of stainless steel.

Example 2

A subcutaneous tunnel flusher for peritoneal dialysis, which comprises a drug delivery device 1, a transfusion tube 2, a driving device 3, a connecting part 4 and an injection head 5; one end of the infusion tube 2 is connected with the drug delivery device 1, the other end is connected with the driving device 3 firstly, and then is connected with the injection head 5 through the connecting part 4, and the driving device 3 is used for driving liquid in the infusion tube to flow unidirectionally and be sprayed out of the injection head 5; the nozzle of the injection head 5 is arc-shaped; specifically, both ends of the infusion tube 2 extend from a liquid inlet 32 and a liquid outlet 33 of the driving device 3, respectively, one end of the liquid inlet 32 is connected with the administration device 1, and one end of the liquid outlet 33 is connected with the injection head 5 through the connecting portion 4.

As shown in fig. 2, the driving device 3 includes a housing 31, a driving wheel 30, a motor 34, a controller 35, a power supply module 36, and a display screen, which are sequentially disposed in the housing from top to bottom; the driving wheel 30 is connected with a motor 34, the motor 34 is electrically connected with a controller 35, and the controller 35 is electrically connected with a power supply module 36; the power supply module 36 supplies power to the motor 34 through the controller 35 to drive the driving wheel 30 to rotate. Wherein the liquid inlet 32 and the liquid outlet 33 are used for being connected with the infusion tube 2; the motor 34 is used for driving the driving wheel 30 to rotate; the controller 35 is for controlling the motor 34; the power supply module 36 is used for supplying power; the display screen is used for displaying the operation parameters of the driving device in real time.

The driving wheel 30 comprises a rotating plate, a rotating rod is arranged in the middle of the rotating plate, the rotating rod is connected with a motor 34, and 4 small pulleys distributed in a cross shape are arranged on the periphery of the middle of the rotating plate; when the controller 35 starts the motor 34, the motor 34 drives the rotating rod to rotate, the rotating rod drives the rotating plate to rotate, and the rotating plate drives the small pulley to rotate; the gap of 4mm is arranged between the small pulley and the shell, the pipeline of the infusion tube can be plugged into the gap between the small pulley and the shell, and the liquid in the pipeline of the infusion apparatus can be driven to flow unidirectionally by the rotation of the small pulley, which is similar to a peristaltic pump.

Wherein, the controller 35 comprises a motor speed controller and a lithium battery charging controller, and the speed controller can be used for adjusting the rotating speed of the motor to adjust the flow rate of the liquid in the infusion apparatus pipeline; the charging controller can be connected with an external power supply to charge the lithium battery and display the electric quantity. The subcutaneous tunnel flusher does not need manual operation in the flushing process, and can accurately control the dosage, the flow rate and other parameters of each dosing, thereby realizing automatic flushing treatment.

The power supply module 36 is a lithium battery, so that the driving device 3 can work without an external power supply, and the use scene of the subcutaneous tunnel flusher is expanded.

Example 3

As shown in fig. 3 and 4, the outer side wall of the end of the connecting portion 4 connected with the injection head 5 is provided with spring steel balls 41 distributed in a ring shape, and the inner side of the end of the injection head 5 connected with the connecting portion 4 is provided with a clamping groove 51 matched with the spring steel balls 41. The connection part 4 is connected with the injection head 5, and then the injection of the liquid containing the medicine can be controlled. The joint of the connecting part 4 and the injection head 5 is provided with a sealing ring 52 to ensure the air tightness in the infusion tube.

Wherein, the sealing ring 52 is a rubber sealing ring, which can prevent the leakage of the liquid medicine and ensure the air tightness of the infusion pipeline.

As shown in fig. 5, the number of the spring steel balls 41 is 3, and the diameter of the steel balls is 1.5mm; the injection head 5 is connected with the connecting part 4, the inner diameter of the end is 1.0cm, the outer diameter is 1.2cm, and three clamping grooves 51 are formed in the inner side. When the connecting part is placed in the clamping groove opening, the steel balls are embedded into the clamping groove, so that the tight connection between the injection head and the connecting part is realized.

The connecting part 4 is tightly combined with the clamping groove through the spring steel ball and the sealing of the rubber sealing ring, so that the tight connection between the injection head and the connecting part is realized; simultaneously, the connecting structure also enables 360 degrees of free rotation between the injection head 5 and the connecting part 4, can realize flushing treatment under any angle, and is more flexible to use.

It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Any person skilled in the art of peritoneal dialysis shall, within the scope of the present disclosure, be able to make equivalent substitutions or alterations to the technical solution according to the present utility model and the inventive concept thereof. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.

Claims

1. The subcutaneous tunnel flusher for peritoneal dialysis is characterized by comprising a transfusion tube (2), a driving device (3), a connecting part (4) and an injection head (5); one end of the infusion tube (2) is connected with the drug delivery device (1), the other end of the infusion tube is connected with the driving device (3) firstly, and then is connected with the injection head (5) through the connecting part (4), and the driving device (3) is used for driving liquid in the infusion tube (2) to flow unidirectionally and be sprayed out of the injection head (5).

2. The subcutaneous tunnel flusher according to claim 1, characterized in that the nozzle of the injection head (5) is arc-shaped.

3. The subcutaneous tunnel flusher according to claim 1, wherein the driving device (3) comprises a shell (31) and a driving wheel (30), a motor (34), a controller (35) and a power supply module (36) which are sequentially arranged in the shell from top to bottom; the driving wheel (30) is connected with the motor (34), the motor (34) is electrically connected with the controller (35), and the controller (35) is electrically connected with the power supply module (36); the power supply module (36) supplies power to the motor (34) through the controller (35) to drive the driving wheel (30) to rotate.

4. A peritoneal dialysis subcutaneous tunnel flusher according to claim 3, characterized in that the controller (35) comprises a motor speed controller and a charging controller.

5. The subcutaneous tunnel flusher for peritoneal dialysis according to claim 1, wherein the outer side wall of one end of the connecting part (4) connected with the injection head (5) is provided with spring steel balls (41) distributed in a ring shape, and the inner side of one end of the injection head (5) connected with the connecting part (4) is provided with a clamping groove (51) matched with the spring steel balls (41).

6. The subcutaneous tunnel flusher according to claim 5, wherein said spring steel balls (41) are 3-5, the steel balls having a diameter of 1.2-1.8 mm; the inner diameter of one end of the injection head (5) connected with the connecting part (4) is 0.8-1.2 cm, the outer diameter is 1.0-1.4 cm, and 3-5 clamping grooves (51) are arranged on the inner side.

7. The subcutaneous tunnel flusher according to claim 6, wherein a sealing ring (52) is further arranged at the connection of the connecting part (4) and the injection head (5).

8. The subcutaneous tunnel flusher according to claim 1, characterized in that the injection head (5) has a length of 5-8 cm and a width of 3-4 mm.

9. The subcutaneous tunnel flusher according to claim 1, characterized in that said injection head (5) is of stainless steel material.

10. The subcutaneous tunnel flusher for peritoneal dialysis according to claim 1, wherein said administration device (1) is an infusion bottle, and said infusion tube (2) is a medical infusion set.