Peritoneal dialysis catheter protective sleeve

Abstract

The peritoneal dialysis catheter protective sleeve comprises a flexible sleeve, a first opening and a second opening are formed in the two ends of the flexible sleeve in the length direction of the flexible sleeve respectively, a notch extending in the length direction of the sleeve is formed in the peripheral wall of the sleeve, and the sleeve can deform to expand the notch. The first opening is used for allowing the dialysis catheter to penetrate through, the second opening is used for allowing the titanium connector to penetrate through, a positioning groove is formed in the inner circumferential wall of the second opening, and the positioning groove is used for being matched with a concave part of an external short pipe. According to the peritoneal dialysis catheter, it can be guaranteed that the joint of the titanium connector and the peritoneal dialysis catheter is not prone to being folded and bent, abrasion of the titanium connector and the peritoneal dialysis catheter is prevented, and therefore the peritoneal dialysis catheter is protected against breakage and seepage, and peritonitis is avoided. Meanwhile, the positioning groove is matched with the concave part of the external short pipe, so that the external short pipe can be protected from falling off due to various accidents to a certain extent.

Description

Technical Field

[0001] This utility model relates to the field of peritoneal dialysis technology, and in particular to a protective sleeve for a peritoneal dialysis catheter. Background Technology

[0002] Currently, peritoneal dialysis requires the use of peritoneal dialysis catheters connected to titanium connectors. However, the connection between the peritoneal dialysis catheter and the titanium connector is prone to detachment or bend and wear, which can lead to rupture of the peritoneal dialysis catheter. This can cause leakage of peritoneal dialysis fluid, which in turn allows bacteria to enter the peritoneal cavity, causing peritoneal dialysis-related peritonitis. Peritonitis may lead to catheter removal and withdrawal from peritoneal dialysis, affecting the quality of life of peritoneal dialysis patients. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art. To this end, this invention provides a peritoneal dialysis catheter protective sleeve, which can protect the connection between the titanium connector and the dialysis catheter, ensuring a stable connection between the titanium connector and the dialysis catheter, preventing the dialysis catheter from rupturing and leaking, avoiding peritonitis, and also protecting the external short tube from dislodgement due to various accidents.

[0004] According to an embodiment of the present invention, a peritoneal dialysis catheter protective sleeve includes a flexible sleeve with a first opening and a second opening at both ends along its length. The outer peripheral wall of the sleeve has a notch extending along its length. The sleeve can deform to expand the notch, thereby allowing a titanium connector and a dialysis catheter to enter the inner cavity of the flexible sleeve through the notch. The first opening is for the dialysis catheter to pass through, and the second opening is for the titanium connector to pass through. The inner peripheral wall of the second opening has a positioning groove, which is used to engage with the recess of an external short tube connected to the titanium connector to restrict the titanium connector from rotating relative to the flexible sleeve about its axis.

[0005] The peritoneal dialysis catheter protective sleeve according to the present invention has at least the following beneficial effects: In use, the titanium connector is first connected to the dialysis catheter, and then the notch of the flexible sleeve is pried open. The titanium connector and the dialysis catheter are inserted into the inner cavity of the flexible sleeve through the notch, and the positioning groove of the flexible sleeve is matched with the concave part of the external short tube. At this time, the flexible sleeve surrounds the titanium connector and the dialysis catheter, which can protect the connection position of the titanium connector and the dialysis catheter, avoid bending or wear of the dialysis catheter, and play a protective role. It ensures the stable connection between the titanium connector and the dialysis catheter, and the dialysis catheter is not easy to rupture and leak, thus avoiding peritonitis and ensuring the normal operation of peritoneal dialysis. At the same time, since the positioning groove matches the concave part of the external short tube connected to the titanium connector, it can restrict the rotation of the titanium connector relative to the flexible sleeve, which can play an anti-rotation role. It can prevent the titanium connector and the dialysis catheter from rotating relative to the flexible sleeve and causing wear, thus playing a protective role. It can also protect the external short tube from falling off due to various accidents to a certain extent.

[0006] According to some embodiments of the present invention, the inner peripheral wall of the second opening is provided with a limiting protrusion, the positioning groove is formed on the limiting protrusion, and the limiting protrusion is used to cooperate with the end face of the titanium joint to restrict the titanium joint from disengaging from the flexible sleeve from the second opening.

[0007] According to some embodiments of the present invention, the limiting protrusion has an annular structure and extends around the axis of the flexible sleeve.

[0008] According to some embodiments of the present invention, the flexible sleeve includes a first pipe section, a second pipe section, and a third pipe section arranged sequentially from the first opening to the second opening. The inner diameter of the first pipe section is smaller than the inner diameter of the third pipe section. The inner diameter of the second pipe section gradually increases from the first opening to the second opening. The dialysis catheter is inserted into the first pipe section. The titanium connector is located in the second pipe section and the third pipe section. The inner diameter of the first pipe section is smaller than the maximum outer diameter of the titanium connector to restrict the titanium connector from entering the first pipe section.

[0009] According to some embodiments of the present invention, the end face of the flexible sleeve with the second opening is formed with a groove, and the groove is connected to the positioning groove.

[0010] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0012] Figure 1This is a schematic diagram of the peritoneal dialysis catheter protective sleeve, dialysis catheter, and titanium connector according to some embodiments of the present invention;

[0013] Figure 2 Exploded views of peritoneal dialysis catheter protective sleeves, dialysis catheters, and titanium connectors according to some embodiments of the present invention;

[0014] Figure 3 This is a cross-sectional view of a peritoneal dialysis catheter protective sleeve, dialysis catheter, and titanium connector according to some embodiments of the present invention;

[0015] Figure 4 This is a schematic diagram of the structure of the peritoneal dialysis catheter protective sleeve according to some embodiments of the present invention;

[0016] Figure 5 This is a cross-sectional view of a peritoneal dialysis catheter protective sleeve according to some embodiments of the present invention;

[0017] Figure 6 Exploded views of peritoneal dialysis catheter protective sleeves, dialysis catheters, and titanium connectors according to some embodiments of the present invention;

[0018] Figure 7 This is an exploded view of the peritoneal dialysis catheter protective sleeve, dialysis catheter, and titanium connector according to some embodiments of the present invention.

[0019] Figure label:

[0020] 1000 peritoneal dialysis catheter protective sleeve;

[0021] Flexible sleeve 100, first pipe section 110, second pipe section 120, third pipe section 130, first opening 140, second opening 150, notch 160, positioning groove 170, slot 171, limiting protrusion 180;

[0022] 200 dialysis catheters;

[0023] Titanium connector 300, external short tube 310, recess 311, conical part 320. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] Reference Figure 1As shown, the peritoneal dialysis catheter protective sleeve 1000 of this utility model includes a flexible sleeve 100. The flexible sleeve 100 has a tubular structure and is made of a flexible material, which allows the flexible sleeve 100 to undergo a certain deformation. Specifically, the flexible sleeve 100 has a first opening 140 and a second opening 150 at both ends along its length. The outer peripheral wall of the sleeve has a notch 160 extending along its length, so that the titanium connector 300 and the dialysis catheter 200 can enter the inner cavity of the flexible sleeve 100 through the notch 160. The first opening 140 is for the dialysis catheter 200 to pass through, and the second opening 150 is for the titanium connector 300 to pass through. The inner peripheral wall of the second opening 150 has a positioning groove 170. The titanium connector 300 is connected to an external short tube 310. The positioning groove 170 is used to fit with the recess 311 of the external short tube 310 to restrict the titanium connector 300 from rotating relative to the flexible sleeve 100 around the axis of the flexible sleeve 100.

[0026] During the use of peritoneal dialysis catheter protective sheath 1000, such as Figure 6 and Figure 7 As shown, the titanium connector 300 needs to be connected to the dialysis catheter 200 first. Then, the notch 160 of the flexible sleeve 100 is pried open, and the titanium connector 300 and the dialysis catheter 200 are inserted into the inner cavity of the flexible sleeve 100 through the notch 160, so that the positioning groove 170 of the flexible sleeve 100 fits with the recess 311 of the external short tube 310. At this time, as shown... Figure 1 As shown, the flexible sleeve 100 surrounds the titanium connector 300 and the dialysis catheter 200, protecting the connection point between them and preventing bending or wear of the catheter. This provides protection and ensures a stable connection between the connector 300 and the catheter 200. Under the protection of the flexible sleeve 100, the catheter 200 is less likely to break or leak, preventing peritonitis and ensuring normal peritoneal dialysis operation. Simultaneously, because the positioning groove 170 fits into the recess 311 of the external short tube 310, it restricts the rotation of the titanium connector 300 relative to the flexible sleeve 100, preventing wear caused by rotation. This provides better protection and also protects the external short tube 310 from detachment due to various accidents.

[0027] In addition, when the peritoneal dialysis catheter protective sleeve 1000 is not needed, the notch 160 of the flexible sleeve 100 can be directly pried open, and the titanium connector 300 and dialysis catheter 200 can be removed. The peritoneal dialysis catheter protective sleeve 1000 can be reused after cleaning.

[0028] Reference Figure 2 and Figure 3As shown, in some embodiments, the inner peripheral wall of the second opening 150 is provided with a limiting protrusion 180, and a positioning groove 170 is formed on the limiting protrusion 180. The limiting protrusion 180 is used to cooperate with the end face of the titanium connector 300. The limiting protrusion 180 can block the titanium connector 300, thereby restricting the titanium connector 300 from detaching from the flexible sleeve 100 from the second opening 150, so that the flexible sleeve 100 can always be fitted around the outer periphery of the titanium connector 300, continuously providing protection. In some embodiments, the limiting protrusion 180 can be configured as an annular structure, with the limiting protrusion 180 extending around the axis of the flexible sleeve 100, so that the contact area between the limiting protrusion 180 and the end face of the titanium connector 300 is large. Furthermore, the limiting protrusion 180 can seal the gap between the flexible sleeve 100 and the second opening 150, preventing external debris from entering the flexible sleeve 100. In some other embodiments, the limiting protrusion 180 may also be configured as a small piece that can prevent the titanium connector 300 from disengaging from the second opening 150.

[0029] Reference Figure 3 and Figure 5 As shown, in some embodiments, the flexible sleeve 100 includes a first tube segment 110, a second tube segment 120, and a third tube segment 130 arranged sequentially from a first opening 140 to a second opening 150. The inner diameter of the first tube segment 110 is smaller than the inner diameter of the third tube segment 130. The inner diameter of the second tube segment 120 gradually increases from the first opening 140 to the second opening 150. The dialysis catheter 200 is inserted into the first tube segment 110, and the titanium connector 300 is located in the second tube segment 120 and the third tube segment 130. This embodiment employs a three-section structure. The inner diameter of the first section 110 is smaller than the maximum outer diameter of the titanium connector 300, thus limiting the titanium connector 300's entry into the first section 110. This can also be understood as restricting the titanium connector 300's movement towards the first opening 140, preventing it from detaching from the flexible sleeve 100 and ensuring the flexible sleeve 100 always protects both the titanium connector 300 and the dialysis catheter 200. The inner diameter of the second section 120 gradually increases, essentially forming a conical section. The second section 120 mates with the conical portion 320 of the titanium connector 300, reducing the gap between them. This allows the flexible sleeve 100 to fit more snugly against the outer wall of the titanium connector 300, minimizing the outer diameter of the flexible sleeve 100 and reducing its footprint.

[0030] Reference Figure 2 As shown, in some embodiments, the end face of the flexible sleeve 100 with the second opening 150 is formed with a groove 171. The groove 171 is connected to the positioning groove 170. During the assembly process, the groove 171 can be used to observe whether the recess 311 of the external short tube 310 is properly engaged with the positioning groove 170, thereby facilitating the assembly operation.

[0031] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, front, back, inside, outside, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this utility model.

[0032] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or the order of the technical features.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, and not to limit it. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A protective sleeve for a peritoneal dialysis catheter, characterized in that The application relates to a flexible sleeve, which comprises a first opening and a second opening at two ends along the length direction of the sleeve, and a notch extending along the length direction of the sleeve is arranged on the outer peripheral wall of the sleeve, the sleeve can be deformed to expand the notch, so that a titanium joint and a dialysis catheter can enter the inner cavity of the flexible sleeve through the notch, the first opening is used for the dialysis catheter to pass through, the second opening is used for the titanium joint to pass through, the inner peripheral wall of the second opening is provided with a positioning groove, the positioning groove is used for matching the concave part of the external short tube connected with the titanium joint, so as to limit the rotation of the titanium joint around the axis of the flexible sleeve relative to the flexible sleeve. The inner peripheral wall of the second opening is provided with a limiting protrusion, the positioning groove is arranged on the limiting protrusion, and the limiting protrusion is used for matching the end surface of the titanium joint, so as to limit the titanium joint from separating from the flexible sleeve through the second opening.

2. The peritoneal dialysis catheter sleeve of claim 1, wherein, The limiting protrusion is a ring structure, and the limiting protrusion extends around the axis of the flexible sleeve.

3. The peritoneal dialysis catheter sleeve of claim 2, wherein, The flexible sleeve comprises a first pipe segment, a second pipe segment and a third pipe segment arranged in sequence from the first opening to the second opening, the inner diameter of the first pipe segment is smaller than the inner diameter of the third pipe segment, the inner diameter of the second pipe segment gradually increases from the first opening to the second opening, the dialysis catheter is arranged in the first pipe segment, the titanium joint is arranged in the second pipe segment and the third pipe segment, the inner diameter of the first pipe segment is smaller than the maximum outer diameter of the titanium joint, so as to limit the titanium joint from entering the first pipe segment.

4. The peritoneal dialysis catheter sleeve of claim 1, wherein, The end surface of the flexible sleeve provided with the second opening is formed with a notch, and the notch is communicated with the positioning groove.

5. The peritoneal dialysis catheter sleeve of claim 1, wherein, ​

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