TWI841455B - Multi-section catheter connector for peritoneal dialysis device - Google Patents

Abstract

The present invention includes a fixed conduit and N conduit connectors. The fixed conduit has a channel portion, an intracorporeal tube portion and an extracorporeal tube portion that are connected to each other. The extracorporeal tube portion has a fixed external threaded portion and a cover external threaded portion. The N conduit connectors are threadedly connected to the fixed conduit, where N is a positive integer greater than or equal to 2. Each conduit connector has a conduit internal threaded portion and a conduit external threaded portion; any conduit connector can be threadedly engaged with the fixed external threaded portion through the conduit internal threaded portion, and then threadedly connected to the fixed conduit in layers, and each conduit connector can be threadedly engaged with the adjacent conduit external threaded portion through the conduit internal threaded portion, so that the N conduit connectors are in a stacked sleeve configuration and form a temporary shielding and protection structure. This case has the advantages of a disposable conduit connector that greatly reduces the risk of contact contamination, and protective components that can improve the effectiveness of preventing contact infection.

Description

Multi-section catheter connector for peritoneal dialysis device

The present invention relates to a multi-section catheter connector for a peritoneal dialysis device, in particular to a disposable catheter connector that greatly reduces the risk of contact contamination, and a multi-section catheter connector for a peritoneal dialysis device that has a protective element that can improve the effect of preventing contact infection.

There are quite a lot of people undergoing dialysis in Taiwan. Peritoneal dialysis is one of the methods of dialysis, but its popularity is relatively low.

Peritoneal dialysis is a type of dialysis performed at home. Simply put, the peritoneum is a thin membrane that covers the internal organs in the abdominal cavity. The peritoneum is rich in microvessels. The principle of peritoneal dialysis is to use the peritoneum as a way to filter and remove water and waste from the body. First, a permanent catheter is surgically implanted in the patient's abdominal cavity. Through this permanent catheter, the dialysis fluid is injected into the abdominal cavity and retained for a period of time, using the peritoneum as a semipermeable membrane for dialysis. Each time it is performed, this permanent catheter is connected, and the abdominal washing water (also known as dialysis fluid) is first introduced. After that, the body's waste and water (referred to as waste water) can be moved to the dialysis fluid in the abdominal cavity, and finally drained out. Two common methods of peritoneal dialysis:

[a] Continuous portable peritoneal dialysis (CAPD), manually operated.

[b]Automated peritoneal dialysis (APD) is performed using a machine.

Referring to Figures 4 and 5, the above two conventional peritoneal dialysis devices both include a fixed catheter 91, a catheter connector 92, a protective cap (not shown), a peritoneal dialysis tube 93, a dialysis end liquid supply section 94 (for accommodating abdominal washing water), and a dialysis end liquid collection section 95 (for accommodating waste water).

The catheter connector 92 is connected to the fixed catheter 91, and the catheter connector 92 and the peritoneal dialysis tube 93 are designed to be screwed together for easy connection or disconnection.

Because the patient (or the nursing staff) will remove the protective cap of the catheter connector 92 first during the operation, the screw thread of the catheter connector 92 is exposed. In the process of connecting the peritoneal dialysis tube 93, the fingers often accidentally touch the screw thread, which may cause infection. In more detail, since the peritoneal cavity is a sterile environment, if bacteria enter the peritoneal cavity, the peritoneum will be infected and cause peritonitis; peritonitis is the main complication of peritoneal dialysis. If the symptoms are seriously evaluated and the tube needs to be replaced, surgery must be arranged to replace the contaminated permanent catheter buried in the body (including the fixed catheter 91 and the catheter connector 92 on it). The consequences are very serious and the remedial measures are very troublesome.

In view of this, it is necessary to develop technology that can solve the above-mentioned shortcomings.

The purpose of the present invention is to provide a multi-section catheter connector for peritoneal dialysis devices, which has the advantages of a disposable catheter connector that greatly reduces the risk of contact contamination, and a protective element that can improve the effect of preventing contact infection. In particular, the problem that the present invention aims to solve is that when operating, the patient (or caregiver) will first remove the protective cap of the catheter connector, so that the screw thread of the catheter connector is exposed, and in the process of operating and connecting the peritoneal dialysis tube, the fingers often accidentally touch the screw thread, which may cause infection. If the symptoms are seriously evaluated and the tube needs to be replaced, surgery must be arranged to replace the contaminated permanent catheter buried in the body, the consequences are very serious, and the remedial measures are very troublesome.

The technical means to solve the above problem is to provide a multi-section catheter connector for a peritoneal dialysis device, which includes: a fixed catheter having a channel portion, an intracorporeal tube port portion and an extracorporeal tube port portion; the channel portion is connected to the intracorporeal tube port portion and the extracorporeal tube port portion, the extracorporeal tube port portion has a fixed external thread portion and a cover external thread portion; N-section catheter connectors are provided corresponding to the fixed catheter, wherein N is a positive integer greater than or equal to 2; the N-section catheter connectors are in a stacked sleeve configuration, Each of the N-section conduit joints has a conduit inner thread portion and a conduit outer thread portion; any of the N-section conduit joints can be threaded into the fixed outer thread portion through the conduit inner thread portion, and then be layered and threaded into the fixed conduit, and any of the N-section conduit joints can be threaded into the adjacent conduit outer thread portion through the conduit inner thread portion, so that the N-section conduit joints are in a layered sleeve connection state and constitute a temporary shielding and protection structure.

The above-mentioned purposes and advantages of the present invention can be easily understood from the detailed description and accompanying drawings of the following selected embodiments.

The present invention is described in detail with the following embodiments and accompanying drawings:

10, 91: Fixed catheter

11: Channel Department

12: Intracorporeal tube opening

13: Extracorporeal tube opening

131: Fixed external thread part

132: External thread of cover

20, 92: Pipe joint

21: Inner thread of the guide tube

22: External thread of the guide tube

30: Protective element

31: Protective cover

32: Inner thread of cover

40, 93: Peritoneal dialysis tube

41: Threaded part inside the tube

50: Peritoneal dialysis device

94: Dialysis end liquid supply part

95: Dialysis end liquid collection part

Figure 1 is a schematic diagram of an embodiment of the present invention.

Figure 2 is a cross-sectional view from another angle after combining Figure 1.

Figure 3 is a schematic diagram of Figure 1 being discarded and replaced with a new one.

Figure 4 is a schematic diagram of a known device.

Figure 5 is an enlarged cross-sectional view of part of the structure in Figure 4.

Referring to Figures 1, 2 and 3, the present invention is a multi-section catheter connector for a peritoneal dialysis device, which includes: a fixed catheter 10 having a channel portion 11, an intracorporeal tube portion 12 and an extracorporeal tube portion 13. The channel portion 11 connects the intracorporeal tube portion 12 and the extracorporeal tube portion 13; the extracorporeal tube portion 13 has a fixed external threaded portion 131 and a cover external threaded portion 132.

The N-section conduit joint 20 is provided corresponding to the fixed conduit 10, wherein N is a positive integer greater than or equal to 2. The N-section conduit joint 20 is in a stacked sleeve configuration, and each of the N-section conduit joint 20 has a conduit inner thread portion 21 and a conduit outer thread portion 22. Any of the N-section conduit joints 20 can be screwed into the fixed outer threaded portion 131 through the inner threaded portion 21 of the conduit, and then be screwed into the fixed conduit 10 in layers, and any of the N-section conduit joints 20 can be screwed into the adjacent outer threaded portion 22 of the conduit through the inner threaded portion 21 of the conduit, so that the N-section conduit joints 20 are in a stacked sleeve configuration and form a temporary shielding and protection structure.

In practice, each of the N conduit joints 20 is a tapered tubular joint.

Referring to Figures 2 and 3, the multi-section catheter connector for peritoneal dialysis device may further include: a protective element 30, which is provided corresponding to the fixed catheter 10 and the N-section catheter connector 20. The protective element 30 has a protective cover 31 and a cover inner threaded portion 32. The cover inner threaded portion 32 is located in the protective cover 31, and the protective element 30 is screwed on the cover outer threaded portion 132, and when the relative screwing rotation is performed, the protective cover 31 can cover a part or all of the cover outer threaded portion 132; and the protective cover 31 can cover a part or all of the catheter outer threaded portion 22.

The part that needs to be particularly explained here is (as shown in FIG. 1 ), peritoneal dialysis is to install a fixed catheter (i.e., the fixed catheter 10 in this case) on the patient, and the end of the fixed catheter has a threaded portion (as shown in FIG. 2 , i.e., the fixed external threaded portion 131 in this case), which is used to be screwed together with the peritoneal dialysis tube, and then connected to the peritoneal dialysis device (as shown in FIG. 1 of this case, it is actually screwed together with an internal threaded portion 41 of a peritoneal dialysis tube 40, so as to connect to a peritoneal dialysis device 50 through the peritoneal dialysis tube 40), and perform a medical process well known to those skilled in the relevant art. However, when the patient (or caregiver) operates, the protective cap on the threaded part of the end of the fixed catheter is usually removed first, thereby exposing the threaded part. If it accidentally touches anything (such as a finger), it may cause infection.

In this case, the N-section conduit connector 20 is provided to solve the above problem. The N-section conduit connector 20 is in a stacked sleeve configuration, and the inner threaded portion 21 of the conduit adjacent to the fixed conduit 10 is screwed into the fixed outer threaded portion 131, and then stacked and screwed to the fixed conduit 10. With this design, when the outermost conduit connector 20 accidentally contacts foreign objects and is at risk of infection, the outermost conduit connector 20 can be rotated and removed without the need for cumbersome disinfection or more troublesome tube replacement operations.

Furthermore, the protective element 30 can be provided to provide more complete auxiliary covering protection for the fixed conduit 10 or the N-section conduit joint 20.

The advantages and effects of this case can be summarized as follows:

[1] The disposable catheter connector greatly reduces the risk of contact contamination. In this case, the N-section catheter connector is set on the fixed external threaded part. When a section of the catheter connector (usually the outermost section) is contaminated, it is not necessary to disinfect or replace the tube in a cumbersome manner. Instead, the catheter connector that is touched can be directly removed, and the catheter connector of the next section is exposed at the same time, completely solving the problem of peritonitis caused by contamination or the need for surgery to replace the permanent catheter due to contamination. Therefore, the disposable catheter connector greatly reduces the risk of contact contamination.

[2] The protective element can improve the effect of preventing contact infection. In this case, the protective element is provided to provide more complete auxiliary covering protection for the fixed conduit or the N-section conduit joint. Therefore, the protective element can improve the effect of preventing contact infection.

The above is only a detailed description of the present invention through a preferred embodiment. Any simple modification and change made to the embodiment does not deviate from the spirit and scope of the present invention.

10:Fix the catheter

11: Channel Department

12: Intracorporeal tube opening

13: Extracorporeal tube opening

131: Fixed external thread part

132: External thread of cover

20: Pipe joint

21: Inner thread of the guide tube

22: External thread of the guide tube

30: Protective element

31: Protective cover

32: Inner thread of cover

40: Peritoneal dialysis catheter

41: Threaded part inside the tube

Claims (3)

A multi-section catheter connector for a peritoneal dialysis device comprises: a fixed catheter having a channel portion, an intracorporeal tube port portion and an extracorporeal tube port portion; the channel portion is connected to the intracorporeal tube port portion and the extracorporeal tube port portion, the extracorporeal tube port portion having a fixed external thread portion and a cover external thread portion; N-section catheter connectors are provided corresponding to the fixed catheter, wherein N is a positive integer greater than or equal to 2; the N-section catheter connectors are in a stacked sleeve configuration, the N-section catheter connectors Each conduit connector in the head has a conduit inner thread portion and a conduit outer thread portion; any conduit connector in the N-section conduit connector can be screwed into the fixed outer thread portion through the conduit inner thread portion, and then be screwed into the fixed conduit in layers, and any conduit connector in the N-section conduit connector can be screwed into the adjacent conduit outer thread portion through the conduit inner thread portion, so that the N-section conduit connector is in a stacked sleeve state and constitutes a temporary shielding and protection structure. A multi-section catheter connector for a peritoneal dialysis device as described in claim 1, wherein each of the N-section catheter connectors is a tapered tubular connector. The multi-section catheter connector for peritoneal dialysis device as described in claim 1 further comprises: a protective element, which is provided corresponding to the fixed catheter and the N-section catheter connector; the protective element has a protective cover and an inner threaded portion of the cover; the inner threaded portion of the cover is located inside the protective cover, and the protective element is screwed on the outer threaded portion of the cover, and when the relative screwing rotation is performed, the protective cover can cover a part or all of the outer threaded portion of the cover; and the protective cover can cover a part or all of the outer threaded portion of the catheter.

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