Kidney fistulization tube fixing device

Abstract

The invention relates to the technical field of fixing devices, in particular to a nephrostomy tube fixing device which comprises a staylace capable of being stably fixed to the waist and further comprises a cover body which is fixed to the staylace and covers the position, penetrating out of the human body, of a nephrostomy tube through an opening in the skin attaching side. The back skin side of the cover body is further provided with a limiting hole and a limiting protrusion which are used for keeping the position, penetrating out of the human body, of the nephrostomy tube stable, and the limiting protrusion is fixedly arranged on the nephrostomy tube and divides the nephrostomy tube penetrating out of the human body into a buffering section located in the cover body and a connecting section used for being connected with a drainage bag. The diameter of the limiting protrusion is larger than that of the limiting hole so as to prevent the buffering section from being separated from the cover body through the limiting hole, the abdominal binder, the cover body and the limiting protrusion block are arranged, and when the connecting section of the nephrostomy tube is subjected to large traction force, it can still be guaranteed that the insertion section, placed in the human body, of the nephrostomy tube is kept in a stable and unstressed state; and the nephrostomy tube is prevented from falling off or loosening.

Description

Technical Field

[0001] The invention relates to the technical field of fixing devices, in particular to a nephrostomy tube fixing device. Background Art

[0002] A nephrostomy tube is a drainage tube retained after pyelostomy, which is mainly used for urine drainage, extracorporeal circulation assistance, renal replacement therapy, urinary tract infection control, and renal function monitoring. Specifically, a nephrostomy tube bypasses the obstruction of primary urine outflow by establishing a permanent channel, allowing urine to flow directly into the bladder or external container, thereby: reducing the pressure and discomfort caused by urinary retention. During certain surgical procedures, when the kidney is temporarily removed for operation, blood can be drained into the extracorporeal circulation system through a nephrostomy tube to maintain the patient's life stability. For patients with acute or chronic renal failure, long-term retention of a nephrostomy tube can be an option for long-term dialysis, which can achieve a stable blood purification effect without the need for frequent replacement of vascular access. Providing a new excretion route helps reduce the incidence of urinary tract infections. After the nephrostomy tube is placed, the functional state of the kidney can be assessed by measuring the amount and property changes of the fluid in the fistula, which is of great significance for guiding treatment decisions and judging prognosis.

[0003] The retention time of a nephrostomy tube varies depending on the application and purpose of the nephrostomy, and can be as short as one month or as long as a lifetime. A common problem with existing nephrostomy tubes in daily care is that the fixation effect of the nephrostomy tubes is poor. In daily life, the nephrostomy tubes are often removed or loosened due to accidental contact. The clinical method is to adhere the nephrostomy tube to the skin with tape, but the tape is easy to fall off when the human body shakes or sweats, and the adhesion strength of the tape is limited. It will directly fall off the skin under a large traction force, so this fixation method is obviously not able to fully meet the fixation requirements of the nephrostomy tube. Summary of the invention

[0004] The invention provides a nephrostomy tube fixing device, which is provided with an abdominal belt, a cover body and a limiting convex block, and can ensure that when a connecting section of the nephrostomy tube is subjected to a large traction force, an insertion section of the nephrostomy tube placed in a human body can still maintain a stable state without stress, thereby preventing the nephrostomy tube from falling off or loosening.

[0005] The technical problem solved by the present invention is achieved by adopting the following technical solutions:

[0006] The present invention provides a nephrostomy tube fixing device, comprising an abdominal belt that can be fixedly fastened around the waist, and also comprising a cover body, wherein the cover body is fixed on the abdominal belt and covers the position of the nephrostomy tube passing through the human body through an opening on the skin-contacting side, and the back skin side of the cover body is also provided with a limiting hole for maintaining the stability of the position of the nephrostomy tube passing through the human body, and a limiting convex, wherein the limiting convex is fixedly arranged on the nephrostomy tube and divides the nephrostomy tube passing through the human body into a buffer section and a connecting section for connecting a drainage bag, wherein the diameter of the limiting convex is greater than the diameter of the limiting hole so that the resistance buffer section passes through the limiting hole and is separated from the cover body.

[0007] Preferably, it further comprises a containing layer fixed on the abdominal band and located on one side of the cover body, the containing layer and the abdominal band together define a containing chamber for containing part of the buffer section, and the containing chamber is communicated with the interior of the cover body through a communicating hole on the cover body.

[0008] Preferably, a limiting cap is also connected to the dorsal skin side of the cover body, and the limiting hole for maintaining the stable position of the nephrostomy tube passing through the human body is provided on the limiting cap. The limiting cap is connected to the cover body through a spring, and a perforation is provided on the cover body corresponding to the position of the limiting cap, and the diameter of the perforation is larger than the diameter of the limiting convexity.

[0009] Preferably, the limiting protrusion is integrally formed on the outer wall of the nephrostomy tube.

[0010] Preferably, the limiting protrusion is a bump adhered to the nephrostomy tube.

[0011] Preferably, the side of the containing layer facing away from the abdominal band is detachably connected to a portion fixed on the abdominal band.

[0012] Preferably, the two free ends of the abdominal band are connected by Velcro or hooks.

[0013] Preferably, the buffer section has a plurality of upper limit projections.

[0014] The beneficial effects of the present invention are as follows: the cover body is stabilized at the waist position of the human body by the abdominal belt, so as to cover the position where the nephrostomy tube passes through the human body, thereby preventing the position from being impacted by external force and causing the nephrostomy tube to loosen. Since the nephrostomy tube is placed on the outer part of the human body, it is easy to be accidentally touched, causing the part of the nephrostomy tube outside the human body to pull the part of the nephrostomy tube inside the human body, thereby causing it to fall off or loosen. By arranging limiting protrusions on the outside of the nephrostomy tube at two points and arranging limiting holes on the back side of the cover body to prevent the limiting protrusions from detaching from the cover body, it is ensured that when the part of the nephrostomy tube outside the human body is subjected to traction, the part of the nephrostomy tube inside the human body will not loosen or detach.

[0015] By setting a sufficient length of the buffer section between the position where the nephrostomy tube passes through the human body and the limiting protrusion, when the connecting section of the nephrostomy tube outside the human body is subjected to a large traction force, the impact on the nephrostomy tube can be compensated by the displacement of the buffer section, thereby achieving a better fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a structural schematic diagram of the prior art of the present invention:

[0018] Figure 2 is a perspective view of a first embodiment of the present invention;

[0019] Figure 3 The shape of the nephrostomy tube of the present invention after being fixed by a fixing device;

[0020] Figure 4 It is a structural schematic diagram of the first embodiment of the present invention;

[0021] Figure 5 is a cross-sectional schematic diagram of a first embodiment of the present invention;

[0022] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 7 This is a schematic diagram of a state in which the receiving layer of the present invention is opened;

[0024] Figure 8 is a schematic structural diagram of a second embodiment of the present invention;

[0025] Fig. 9 is a perspective view of a second embodiment of the present invention;

[0026] Fig.10 is a cross-sectional schematic diagram of a second embodiment of the present invention;

[0027] Fig.11 For the present invention Fig.10 Schematic diagram of the enlarged structure at point B in the middle.

[0028] In the figure, 1, skin; 2, nephrostomy tube; 201, insertion section; 202, buffer section; 203, connection section; 3, dressing; 4, tape; 5, abdominal belt; 6, cover body; 7, limiting hole; 8, opening; 9, limiting convex; 10, containing layer; 11, opening side; 12, spring; 13, limiting cap; 14, connecting hole; 15, connector; 16, perforation. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific diagrams.

[0030] In order to enable those skilled in the art to understand the inventive point of the present invention, the prior art part of the present invention is first described. Figure 1 After the nephrostomy tube 2 penetrates into the human body through the skin 1 at the waist, a dressing 3 is generally used to cover the penetration point to keep the penetration point clean. The nephrostomy tube 2 that penetrates into the designated position of the kidney includes an insertion section 201 placed in the human body and a part outside the human body. In order to avoid accidental contact, the part outside the human body is usually attached to the skin 1 at a certain distance from the penetration point using tape 4 (3M tape). For ease of description, the nephrostomy tube 2 on both sides of the tape 4 and outside the human body is named as two parts. The first part from the penetration point to the adhesive position of the tape 4 is the buffer section 202, and the part extending from the adhesive position of the tape 4 to the direction away from the penetration point is named the connecting section 2. 03 (the free end of the connecting section 203 is used to connect the drainage bag, which is not shown in the figure). When the drainage tube is attached with the adhesive tape 4, if the connecting section 203 is pulled by an external force, the traction force will first be transferred to the adhesion point of the adhesive tape 4, and the external traction force will be offset by the adhesion force of the adhesive tape 4, thereby ensuring the stability of the position of the nephrostomy tube 2 in the human body. At the same time, under the adhesion of the adhesive tape 4, the buffer section 202 will be more closely attached to the skin 1, that is, its position relative to the skin 1 is limited, so that the human body can determine the approximate position of the buffer section 202 when it is moving, and avoid touching the buffer section 202, which may cause the nephrostomy tube 2 to loosen or fall off. This method is an existing clinical method for fixing the nephrostomy tube 2.

[0031] The existing method for fixing the nephrostomy tube 2 has the following defects. First, the adhesion strength of the tape 4 is limited. If the connecting section 203 is subjected to a large traction force, the tape 4 may easily fall off. At the same time, the insertion section 201 may be driven to move through the buffer section 202, thereby causing the nephrostomy tube 2 to fall off or become loose. Second, the tape 4 may be affected by the shaking of the nephrostomy tube 2 during human movement or sweating, and may gradually lose its adhesion to the skin 1, thereby falling off and losing the fixing effect on the nephrostomy tube 2. Third, when the nephrostomy tube 2 is fixed by the existing tape 4, the buffer section 202 may also shake synchronously during human movement, and long-term small-amplitude shaking may also involve the penetration point. Based on the above problems, the present invention overcomes them through the following improvements.

[0032] refer to Figure 2-Figure 6 , is a structural schematic diagram of the first embodiment of the present invention, a nephrostomy tube fixing device comprises an abdominal belt 5 and a cover body 6 fixed on the abdominal belt 5. When in use, the abdominal belt 5 is tied to the waist of the human body, and then the cover body 6 on the abdominal belt 5 is aligned with the insertion point of the nephrostomy tube 2 for covering. Obviously, it is necessary to cover the insertion position of the nephrostomy tube 2 to keep the insertion position of the nephrostomy tube 2 from being loose. The size of the internal accommodation space of the cover body 6 should be not less than the size of the dressing 3 covering the insertion point of the nephrostomy tube 2. At the same time, the side of the cover body 6 close to the skin 1, that is, the skin-contacting side (also referred to as the inner side) should have an opening 8 to prevent the cover body 6 from compressing the insertion position of the nephrostomy tube 2. The cover body 6 is stabilized at the waist through the abdominal belt 5. Obviously, compared with the traditional tape 4, it can withstand greater traction, and compared with the tape 4, it will not be affected by sweating or In order to prevent the nephrostomy tube 2 from being detached due to the shaking of the nephrostomy tube 2, in order to prevent the nephrostomy tube 2 from being affected by the traction force on the external part of the human body and affecting the stability of the insertion section 201 of the human body, a limiting hole 7 is further provided on the back skin side of the cover body 6 (the relative position to the skin-adhering side mentioned above, also referred to as the outer side), and a limiting protrusion 9 is further provided on the outer wall of the nephrostomy tube 2 (the outer wall part of the human body). For the convenience of description below, the part of the nephrostomy tube 2 placed outside the human body is named, and the position from the insertion position of the nephrostomy tube 2 to the limiting protrusion 9 is named as the buffer section 202, and the part of the limiting protrusion 9 extending away from the insertion position of the nephrostomy tube 2 is the connecting section 203 (for connecting a drainage bag). The diameter of the limiting protrusion 9 is larger than the diameter of the limiting hole 7 to keep the insertion section 201 of the nephrostomy tube 2 stable. The specific structure of the fixing device is referred to in Figure 2 During use, the nephrostomy tube 2 is fixed by a fixing device as follows Figure 3 The state shown in FIG. 1 shows that the nephrostomy tube 2 is in a state of being combined with the fixing device. Figure 4 As shown, it can have the principle reference of resisting external traction Figure 5 and Figure 6When the connecting section 203 is subjected to traction, it will tend to pull the buffer section 202 out of the cover body 6. Since the diameter of the limiting hole 7 on the back skin side of the cover body 6 is smaller than the diameter of the limiting protrusion 9, the limiting protrusion 9 cannot pass through the limiting hole 7, thereby offsetting the traction force of the connecting section 203, that is, the traction section drives the limiting protrusion 9 to move to the outside of the cover body 6, and the abdominal belt 5 offsets the traction force of the traction section by applying a reverse force to the cover body 6, thereby ensuring the stability of the buffer section 202 and the insertion section 201.

[0033] The effect of the above-mentioned buffer section 202 is that when the limiting protrusion 9 is subjected to the traction force of the connecting section 203, the limiting protrusion 9 will apply the traction force to the abdominal belt 5 through the cover body 6. When the abdominal belt 5 is fixed on the waist, the muscles of the waist change from a relatively relaxed state to a tightened state. At this time, the cover body 6 will produce a slight displacement in the direction of the traction force applied to the connecting section 203. The displacement is compensated by the release of the buffer section 202, thereby ensuring the stability of the insertion position of the nephrostomy tube 2.

[0034] In order to ensure that after the nephrostomy tube 2 is fixed by the fixing device, the buffer section 202 will not shake when the human body moves, thereby causing the insertion position of the nephrostomy tube 2 to loosen, a containing layer 10 is also fixed on the abdominal band 5. The containing layer 10 is preferably made of cloth. The containing layer 10 and the dorsal skin side (outer side) of the abdominal band 5 together define a containing chamber for storing the buffer section 202. A connecting hole 14 is opened on the side wall of the cover body 6 to communicate with the interior of the containing chamber, so that the buffer section 202 can be placed inside the containing chamber. By being placed inside the containing chamber, the buffer section 202 can avoid large shaking when the human body moves, thereby ensuring the stability of the insertion section 201 of the nephrostomy tube 2. At the same time, the buffer section 202 is placed inside the containing chamber and will not loosen or fall off due to external force generated by scratching when the human body moves.

[0035] Further, in order to enable the connection section 203 of the nephrostomy tube 2 to be able to provide maximum buffering when subjected to traction, reference Figure 8-Figure 11 This is a second embodiment of a nephrostomy tube fixing device of the present invention. Compared with the first embodiment, the back skin side of the cover body 6 is not a vertical plate, and the back skin side is also connected to a limiting cap 13. A limiting hole 7 for maintaining the stable position of the nephrostomy tube 2 passing through the human body is provided on the limiting cap 13. The limiting cap 13 is connected to the cover body 6 through a spring 12. The cover body 6 is provided with a perforation 16 at a position corresponding to the limiting cap 13. The diameter of the perforation 16 is larger than the diameter of the limiting protrusion 9. The schematic diagram of the fixing device of this embodiment after fixing the nephrostomy tube 2 is shown in FIG. Figure 8 and Fig. 9 The principle of further buffering can be seen in Fig.10 and Fig.11When the connecting section 203 is subjected to traction, the limiting protrusion 9 can drive the limiting cap 13 to move away from the cover body 6, and at the same time the spring 12 is stretched to resist the traction, thereby achieving a better buffering effect and avoiding the nephrostomy tube 2 from breaking due to a large traction force in a short period of time. That is, the stability of the insertion section 201 is further guaranteed by the sufficient release of the buffer section 202.

[0036] Furthermore, the limiting protrusion 9 of the above two embodiments can be formed integrally on the outer wall of the nephrostomy tube 2 during production, or can be a limiting protrusion 9 added later. Of course, it is preferred to use the limiting protrusion 9 added later. Since the two sides of the limiting protrusion 9 are respectively the buffer section 202 and the connecting section 203, the limiting protrusion 9 added later can set the position of the limiting protrusion 9 according to the patient's own situation, wherein the limiting protrusion 9 added later is preferably formed by winding the tape 4, that is, the tape 4 is used to surround the nephrostomy tube 2. The outer wall is wrapped with the adhesive tape 4 so that the adhesive tape 4 forms a limiting bulge 9 whose size is larger than the limiting hole 7. The limiting bulge 9 formed by winding the adhesive tape 4 has the advantages of convenient material acquisition and easy operation. Of course, two semicircular rings can also be used to adhere to the outer wall of the nephrostomy tube 2 with glue to form the limiting bulge 9. Of course, if the limiting bulge 9 is formed by winding the adhesive tape 4, in order to fully ensure the stability of the cooperation between the limiting bulge 9 and the limiting hole 7, the number of limiting bulges 9 can also be set to prevent the limiting bulge 9 from detaching from the limiting hole 7 due to extrusion deformation.

[0037] Since the communicating hole 14 is small in size and the accommodation chamber is in a narrow and long state, in order to facilitate the buffer layer to enter the interior of the accommodation chamber, the side of the accommodation layer 10 facing away from the abdominal belt 5 (named as the opening side 11) is detachably connected to the part fixed on the abdominal belt 5. By opening the opening side 11, as shown in FIG. Figure 7 The state shown can better pull the buffer section 202 into the interior of the accommodation chamber. After the buffer section 202 is placed in the interior of the accommodation chamber, the open side 11 is closed. The above-mentioned detachable connection method is a zipper or Velcro connection.

[0038] Furthermore, in order to reduce the movement of the cover body 6 when subjected to traction, the abdominal belt 5 should not be elastic, and in order to ensure that the abdominal belt 5 is suitable for people with different waist circumferences, the two free ends of the abdominal belt 5 are connected by a connector 15, and the connector 15 can be connected by Velcro, hook or buckle, among which the hook and buckle connection methods are more secure.

[0039] Furthermore, since the limiting protrusion 9 will rebound and move to one side of the skin 1 after the traction force disappears, in order to avoid the limiting protrusion 9 hitting the penetration point of the nephrostomy tube 2, there is a distance between the position of the limiting hole 7 and the projection of the nephrostomy tube 2 passing through the human body on the vertical plane.

[0040] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A nephrostomy tube fixing device, characterized in that: It includes a belly band (5) that can be secured around the waist; Also includes; A cover body (6), the cover body (6) being fixed on the abdominal band (5) and covering the position of the nephrostomy tube (2) passing through the human body through an opening (8) on the skin-adjacent side, and the cover body (6) also has a limiting hole (7) on the back skin side for maintaining the stability of the position of the nephrostomy tube (2) passing through the human body; A limiting protrusion (9) is fixedly arranged on the nephrostomy tube (2) and divides the nephrostomy tube (2) passing through the human body into a buffer section (202) and a connection section (203) for connecting a drainage bag. The diameter of the limiting protrusion (9) is larger than the diameter of the limiting hole (7) so that the buffer section (202) passes through the limiting hole (7) and is separated from the cover body (6).

2. A nephrostomy tube fixing device according to claim 1, characterized in that: It also comprises a containing layer (10) fixed on the abdominal band (5) and located on one side of the cover body (6); the containing layer (10) and the abdominal band (5) together define a containing chamber for containing part of the buffer section (202); the containing chamber is connected to the interior of the cover body (6) through a connecting hole (14) on the cover body (6).

3. A nephrostomy tube fixing device according to claim 1, characterized in that: The back side of the cover body (6) is also connected to a limiting cap (13). The limiting hole (7) for maintaining the stable position of the nephrostomy tube (2) passing through the human body is provided on the limiting cap (13). The limiting cap (13) is connected to the cover body (6) via a spring (12). The cover body (6) is provided with a through hole (16) at a position corresponding to the limiting cap (13). The diameter of the through hole (16) is larger than the diameter of the limiting protrusion (9).

4. A nephrostomy tube fixing device according to claim 1, characterized in that: The limiting protrusion (9) is integrally formed on the outer wall of the nephrostomy tube (2).

5. A nephrostomy tube fixing device according to claim 4, characterized in that: The limiting protrusion (9) is a protrusion adhered to the nephrostomy tube (2).

6. A nephrostomy tube fixing device according to claim 1, characterized in that: The side of the containing layer (10) facing away from the abdominal band (5) is detachably connected to a portion fixed on the abdominal band (5).

7. A nephrostomy tube fixing device according to claim 1, characterized in that: The two free ends of the abdominal band (5) are connected by means of Velcro, hooks or buckles.

8. A nephrostomy tube fixing device according to claim 1, characterized in that: The buffer section (202) has a plurality of upper limit projections (9).

9. A nephrostomy tube fixing device according to claim 1, characterized in that: There is a distance between the position of the limiting hole (7) and the projection of the position where the nephrostomy tube (2) passes through the human body on a vertical plane.

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