A hemodialysis catheter pressure guard

Abstract

The utility model relates to the field of medical auxiliary device, concretely relates to a hemodialysis catheter pressure preventing device, including pressure -resistant pipe -guard assembly and flexible joint subassembly, the pressure -resistant pipe -guard assembly be equipped with two pieces of pipe -guard piece and place in two pieces of pipe -guard piece several pieces of elastic pipe -clamp piece, it can clamp dialysis catheter and can prevent dialysis catheter from being extruded and being folded and damaged, two groups of pressure -resistant pipe -guard assembly divide and place in the both ends of flexible joint subassembly and with flexible joint subassembly detachable connection, and flexible joint subassembly is equipped with two pieces of flexible piece, it can wrap dialysis catheter and can prevent dialysis catheter from being extruded and being folded and damaged, and flexible joint subassembly can carry out flexible bending deformation under the action of external force. The utility model utilizes pressure -resistant pipe -guard assembly and flexible joint subassembly to carry out protection to dialysis catheter, can satisfy dialysis catheter in the flat state not being extruded and being folded and damaged, can also satisfy dialysis catheter in the necessary bending state and be protected, thereby can improve the application range of dialysis catheter pressure preventing device.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary devices, specifically to a pressure-prevention device for hemodialysis catheters. Background Technology

[0002] Before hemodialysis, a fistula is usually created in the patient's blood vessels, and a dialysis catheter is used to connect to the dialysis machine. Because each dialysis session is long and cannot be monitored by a dedicated person for extended periods, the dialysis catheter is easily squeezed or broken by the patient or foreign objects. Therefore, some hospitals use catheter anti-compression devices to prevent the dialysis catheter from being squeezed or broken, thus affecting the dialysis effect. For example, utility model patent CN22141191 U discloses a catheter anti-compression device, which describes: "...the protective component includes a lower protective block, an upper protective block, a lower clamp, an upper clamp, a locking member, and a stabilizing member...the catheter is placed on the lower clamp, which supports the bottom of the catheter...the lower clamp and the upper clamp, in cooperation with the stabilizing member, can abut against each other to fix and limit the catheter..." Although this disclosed technology provides anti-compression protection through the lower clamp, upper clamp, lower protective block, and upper protective block, the upper and lower clamps cannot be bent. However, in practical applications, the dialysis catheter cannot be perfectly straight when positioned from the patient's body to the dialysis machine. It requires necessary bends, such as changing angles or navigating corners. This anti-pressure device cannot accommodate these necessary bends, limiting its application. Therefore, improving the anti-pressure device for hemodialysis catheters—one that protects the catheter from compression and breakage in both horizontal and bending states, thus enhancing its application range—is the problem to be solved in this case. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model discloses a pressure-resistant device for hemodialysis catheters, including a pressure-resistant tubing assembly and a flexible connector assembly. The pressure-resistant tubing assembly has two tubing plates and several elastic clamping plates placed inside the two tubing plates, which can clamp the dialysis catheter and prevent the dialysis catheter from being squeezed or broken. The two sets of pressure-resistant tubing assemblies are respectively placed at both ends of the flexible connector assembly and are detachably connected to the flexible connector assembly. The flexible connector assembly has two flexible plates, which can wrap the dialysis catheter and prevent the dialysis catheter from being squeezed or broken. The flexible connector assembly can bend and deform flexibly under the action of external force. This invention improves the anti-pressure device for hemodialysis catheters by incorporating a flexible joint assembly that can be bent and deformed between two sets of anti-pressure tubing components. The anti-pressure tubing components and the flexible joint assembly protect the dialysis catheter, ensuring that the dialysis catheter is not squeezed or broken when placed flat, and is also protected when bent, thereby expanding the application range of the anti-pressure device for dialysis catheters.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A pressure-resistant device for hemodialysis catheters, characterized in that it comprises a pressure-resistant catheter assembly and a flexible connector assembly. The pressure-resistant catheter assembly has two catheter protectors and several elastic clamping plates. The two catheter protectors are semi-arc-shaped, with one protector covering and closably connected to the other. The several elastic clamping plates are dispersed within the cavity formed by the two protectors. The pressure-resistant catheter assembly can clamp the dialysis catheter and prevent it from being squeezed or broken. The pressure-resistant catheter assembly is configured in two groups, which are respectively placed at both ends of the flexible connector assembly and detachably connected to it. The flexible connector assembly has two flexible plates, both of which are semi-arc-shaped, with one flexible plate covering and closably connected to the other. The flexible connector assembly can wrap around the dialysis catheter and prevent it from being squeezed or broken. The flexible connector assembly can bend and deform flexibly under external force.

[0006] The pressure-resistant protective pipe assembly includes an upper protective pipe sheet and a lower protective pipe sheet. Both the upper and lower protective pipe sheets are rigid arc-shaped plates with arc-shaped grooves. The opening of the arc-shaped groove of the upper protective pipe sheet is opposite to the opening of the arc-shaped groove of the lower protective pipe sheet. The upper protective pipe sheet can cover the lower protective pipe sheet, and one side of the upper and lower protective pipe sheets is hinged by several hinges. The other side of the upper and lower protective pipe sheets is fastened by an openable and closable latch.

[0007] The pressure-resistant tubing assembly also includes a semi-ring elastic clamp piece, which is a half-ring piece formed by splitting a flexible circular silicone ring. Several semi-ring elastic clamp pieces are provided, which are distributed in the semi-circular grooves of the upper and lower tubing pieces. The semi-ring elastic clamp pieces in the semi-circular grooves of the upper and lower tubing pieces correspond one-to-one. Each pair of corresponding semi-ring elastic clamp pieces is a group. The two semi-ring elastic clamp pieces in each group can be assembled into a complete ring, and the assembled ring can elastically clamp the dialysis catheter.

[0008] The upper and lower protective tube sheets are provided with outwardly protruding semi-annular protrusions on the outer walls at both ends of their respective ends. The semi-annular protrusions at both ends of the upper protective tube sheet and the corresponding semi-annular protrusions at both ends of the lower protective tube sheet can respectively form an outer ring protrusion.

[0009] The flexible joint assembly includes an upper flexible sheet and a lower flexible sheet. Both the upper and lower flexible sheets are flexible sheets made of flexible rubber and have arc-shaped grooves. The inner walls of the arc-shaped grooves are respectively provided with transverse and longitudinal grooves for avoidance during flexible bending. The opening of the arc-shaped groove of the upper flexible sheet is opposite to the opening of the arc-shaped groove of the lower flexible sheet. The upper flexible sheet covers the lower flexible sheet, and both sides of the upper and lower flexible sheets are fastened by openable and closable latches.

[0010] The upper and lower flexible sheets each have an inner arc surface at both ends, and the radius of the inner arc surface at each end matches the radius of the outer arc surface at both ends of the corresponding upper and lower protective sheets. Each of the inner arc surfaces at both ends has an inwardly concave semi-annular groove. The inner arc surfaces at both ends of the upper flexible sheet and the inner arc surfaces at both ends of the corresponding lower flexible sheet can respectively form a circular hole-shaped connection opening. The semi-annular grooves at both ends of the upper flexible sheet and the semi-annular grooves at both ends of the corresponding lower flexible sheet can respectively form a circular groove-shaped inner groove.

[0011] The inner groove matches the outer boss, and one end of each of the two sets of pressure-resistant protective tube components can be inserted into the connection ports at both ends of the flexible joint component. The outer boss at one end of each of the two sets of pressure-resistant protective tube components can be embedded into the inner grooves at both ends of the flexible joint component. The flexible joint component can restrict the movement of the pressure-resistant protective tube component.

[0012] The flexible joint assembly further includes a fixing connector, which may consist of one or more pieces. One end of the fixing connector is fixed to the upper or lower flexible sheet, and the other end of the fixing connector may be clamped or detachably locked to a fixed object around the patient.

[0013] As described above, the advantages of the anti-compression device for hemodialysis catheters provided by this utility model are as follows: a flexible joint assembly capable of bending and deforming is provided between the two sets of anti-compression tubing components. The anti-compression tubing components and the flexible joint assembly protect the dialysis catheter, ensuring that the dialysis catheter is not squeezed or broken in a flat state, and is also protected when necessary in a bending state. This utility model, through improvements to the anti-compression device for hemodialysis catheters, expands the application range of dialysis catheter anti-compression devices. This utility model has a reasonable design, simple structure, low cost, and is easy to promote. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the anti-pressure device for a hemodialysis catheter according to the present invention;

[0015] Figure 2 This is an enlarged schematic diagram of the pressure-resistant protective pipe assembly;

[0016] Figure 3 for Figure 2 AA diagram in the image;

[0017] Figure 4 This is an enlarged schematic diagram of a flexible joint assembly;

[0018] Figure 5 for Figure 4 An enlarged diagram of BB in the image.

[0019] Figure label:

[0020] 1. Pressure-resistant pipe protection assembly; 11. Upper pipe protection plate; 12. Lower pipe protection plate; 13. Semi-ring elastic pipe clamp plate; 101. External boss; 2. Flexible joint assembly; 21. Upper flexible plate; 22. Lower flexible plate; 23. Fixed connector; 201. Connection port; 202. Inner groove. Detailed Implementation

[0021] The present invention will be further described below through specific embodiments.

[0022] like Figure 1 As shown, the present invention provides a pressure-resistant device for hemodialysis catheters, comprising a pressure-resistant tubing assembly 1 and a flexible connector assembly 2. The pressure-resistant tubing assembly 1 has two tubing plates and several elastic clamping plates. Both tubing plates are semi-arc-shaped, with one tubing plate covering and closably connected above the other tubing plate. The several elastic clamping plates are dispersed within the cavity formed by the two tubing plates. The pressure-resistant tubing assembly 1 can clamp the dialysis catheter and prevent it from being squeezed or bent. The pressure-resistant tubing assembly 1 is configured as two sets, with the two sets of pressure-resistant tubing assemblies 1 placed at both ends of the flexible joint assembly 2 and detachably connected to the flexible joint assembly 2. The flexible joint assembly 2 is provided with two flexible plates, both of which are semi-arc-shaped, with one flexible plate covering and openably connected above the other flexible plate. The flexible joint assembly 2 can wrap around the dialysis catheter and prevent the dialysis catheter from being squeezed and broken. The flexible joint assembly 2 can be flexibly bent and deformed under the action of external force.

[0023] like Figures 1 to 3As shown, the pressure-resistant pipe assembly 1 of this utility model includes an upper pipe protector 11, a lower pipe protector 12, and a semi-ring elastic clamping pipe piece 13. The upper pipe protector 11 and the lower pipe protector 12 are both hard arc-shaped plates with arc-shaped grooves. The opening of the arc-shaped groove of the upper pipe protector 11 is opposite to the opening of the arc-shaped groove of the lower pipe protector 12. The upper pipe protector 11 can cover the lower pipe protector 12, and one side of the upper pipe protector 11 and the lower pipe protector 12 are hinged by several hinges. The other side of the upper pipe protector 11 and the lower pipe protector 12 are fastened by an openable and closable latch. The semi-annular elastic clamping piece 13 is a half-ring formed by splitting a flexible circular silicone ring. Several semi-annular elastic clamping pieces 13 are provided, distributed in the semi-circular grooves of the upper half-protective piece 11 and the lower half-protective piece 12. Each pair of semi-annular elastic clamping pieces 13 corresponds one-to-one, and each pair forms a group. The two semi-annular elastic clamping pieces 13 in each group can be assembled into a complete ring, which can elastically clamp the dialysis catheter. The upper half-protective piece 11 and the lower half-protective piece 12 each have outwardly protruding semi-annular bosses on their respective outer walls. The semi-annular bosses at both ends of the upper half-protective piece 11 and the corresponding semi-annular bosses at both ends of the lower half-protective piece 12 can respectively form an outer ring-shaped boss 101.

[0024] like Figures 1 to 5As shown, the flexible joint assembly 2 of this utility model includes an upper flexible sheet 21, a lower flexible sheet 22, and a fixing connector 23. The upper flexible sheet 21 and the lower flexible sheet 22 are both flexible sheet bodies made of flexible rubber with arc-shaped grooves. The inner walls of the arc-shaped grooves are respectively provided with transverse and longitudinal grooves for avoidance during flexible bending. The opening of the arc-shaped groove of the upper flexible sheet 21 is opposite to the opening of the arc-shaped groove of the lower flexible sheet 22. The upper flexible sheet 21 covers the lower flexible sheet 22, and both sides of the upper flexible sheet 21 and the lower flexible sheet 22 are fastened by openable and closable latches. The upper flexible sheet 21 and the lower flexible sheet 22 are respectively provided with inner arc surfaces at both ends, and the radius of the inner arc surfaces at both ends matches the radius of the outer arc surfaces at both ends of the corresponding upper protective sheet 11 and lower protective sheet 12. The inner arc surfaces at both ends are respectively provided with inwardly concave semi-annular grooves. The inner arc surfaces at both ends of the upper flexible sheet 21 and the inner arc surfaces at both ends of the corresponding lower flexible sheet 22 can respectively form a circular hole-shaped connection port 201. The semi-annular grooves at both ends of the upper flexible sheet 21 and the semi-annular grooves at both ends of the corresponding lower flexible sheet 22 can respectively form a circular groove-shaped inner groove 202. The inner groove 202 matches the outer protrusion 101. One end of each of the two sets of pressure-resistant sheath components 1 can be inserted into the connection ports 201 at both ends of the flexible joint component 2. The outer protrusion 101 at one end of each of the two sets of pressure-resistant sheath components 1 can be embedded into the inner grooves 202 at both ends of the flexible joint component 2. The flexible joint component 2 can restrict the movement of the pressure-resistant sheath component 1. The fixed connector 23 is provided in one or more pieces. One end of the fixed connector 23 is fixed to the upper half of the flexible sheet 21 or the lower half of the flexible sheet 22. The other end of the fixed connector 23 can be clamped or detachably locked to a fixed object around the patient.

[0025] Before using this hemodialysis catheter anti-pressure device, first bend and shape the flexible connector assembly 2 according to the required bending angle on site; then open the upper flexible plate 21 of the flexible connector assembly 2, and insert and clamp the two sets of anti-pressure tubing assemblies 1 to both ends of the lower flexible plate 22 of the flexible connector assembly 2; then open the upper tubing plates 11 of the two sets of anti-pressure tubing assemblies 1, and the semi-ring elastic clamping plates 13 fixed in the upper tubing plates 11 will also open together with the upper tubing plates 11; place the dialysis catheter into the... The lower flexible sheet 22 and the lower protective sheet 12 are fitted with the semi-circular elastic clamping piece 13; then the upper protective sheet 11 and the upper flexible sheet 21 are respectively placed on the lower protective sheet 12 and the lower flexible sheet 22 and the locking is fastened. At this time, the semi-circular elastic clamping piece 13 in the upper protective sheet 11 and the semi-circular elastic clamping piece 13 in the lower protective sheet 12 will elastically clamp the dialysis catheter; then the other end of the fixing connector 23 on the flexible connector assembly 2 is clamped or locked to a fixed object around the patient.

[0026] This invention improves the anti-pressure device for hemodialysis catheters by providing a flexible joint assembly 2 that can be bent and deformed between the two sets of anti-pressure tubing components 1. The anti-pressure tubing components 1 and the flexible joint assembly 2 protect the dialysis catheter, ensuring that the dialysis catheter is not squeezed or broken when placed flat, and is also protected when bent, thereby expanding the application range of the anti-pressure device for dialysis catheters.

[0027] The above is only one specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A pressure-resistant device for hemodialysis catheters, characterized in that: The assembly includes a pressure-resistant protective tube assembly (1) and a flexible joint assembly (2). The pressure-resistant protective tube assembly (1) has two protective tube pieces and several elastic clamping pieces. Both protective tube pieces are semi-arc-shaped, and one of the protective tube pieces covers and can be opened and closed above the other protective tube piece. The several elastic clamping pieces are dispersed in the cavity formed by the two protective tube pieces. The pressure-resistant protective tube assembly (1) is set into two groups. The two groups of pressure-resistant protective tube assemblies (1) are placed at both ends of the flexible joint assembly (2) and are detachably connected to the flexible joint assembly (2). The flexible joint assembly (2) has two flexible pieces. Both flexible pieces are semi-arc-shaped, and one of the flexible pieces covers and can be opened and closed above the other flexible piece. The flexible joint assembly (2) can be flexibly bent and deformed under the action of external force.

2. The anti-compression device for a hemodialysis catheter according to claim 1, characterized in that: The pressure-resistant pipe assembly (1) includes an upper pipe plate (11) and a lower pipe plate (12). Both the upper pipe plate (11) and the lower pipe plate (12) are hard arc-shaped plates with arc-shaped grooves. The upper pipe plate (11) can cover the lower pipe plate (12), and one side of the upper pipe plate (11) and the lower pipe plate (12) are hinged by several hinges. The other side of the upper pipe plate (11) and the lower pipe plate (12) are fastened by an openable latch.

3. The anti-compression device for a hemodialysis catheter according to claim 2, characterized in that: The pressure-resistant tubing assembly (1) further includes a semi-ring elastic clamping piece (13). The semi-ring elastic clamping piece (13) is provided in several pieces. The semi-ring elastic clamping pieces (13) are distributed in the semi-circular grooves of the upper semi-circular groove (11) and the lower semi-circular groove (12). The semi-ring elastic clamping pieces (13) arranged in the semi-circular grooves of the upper semi-circular groove (11) and the lower semi-circular groove (12) correspond one-to-one. Each pair of corresponding semi-ring elastic clamping pieces (13) is set as a group. The two semi-ring elastic clamping pieces (13) in each group can be assembled into a complete ring and the assembled ring can elastically clamp the dialysis catheter.

4. The anti-compression device for a hemodialysis catheter according to claim 3, characterized in that: The upper half-protective tube sheet (11) and the lower half-protective tube sheet (12) are respectively provided with outwardly protruding semi-annular bosses on the outer walls at both ends. The semi-annular bosses at both ends of the upper half-protective tube sheet (11) and the corresponding semi-annular bosses at both ends of the lower half-protective tube sheet (12) can respectively form an outer ring-shaped boss (101).

5. A pressure-resistant device for a hemodialysis catheter according to claim 4, characterized in that: The flexible joint assembly (2) includes an upper flexible sheet (21) and a lower flexible sheet (22). Both the upper flexible sheet (21) and the lower flexible sheet (22) are flexible sheets with arc-shaped grooves. The inner walls of the arc-shaped grooves are respectively provided with transverse and longitudinal grooves. The upper flexible sheet (21) covers the lower flexible sheet (22), and both sides of the upper flexible sheet (21) and the lower flexible sheet (22) are fastened by openable and closable latches.

6. A pressure-resistant device for a hemodialysis catheter according to claim 5, characterized in that: The upper flexible sheet (21) and the lower flexible sheet (22) are provided with inner arc surfaces at their respective ends, and semi-annular grooves that are concave inward are provided on the inner arc surfaces at their respective ends. The inner arc surfaces at both ends of the upper flexible sheet (21) and the inner arc surfaces at both ends of the corresponding lower flexible sheet (22) can respectively form a circular hole-shaped connection opening (201). The semi-annular grooves at both ends of the upper flexible sheet (21) and the semi-annular grooves at both ends of the corresponding lower flexible sheet (22) can respectively form a circular groove-shaped inner groove (202).

7. A pressure-resistant device for a hemodialysis catheter according to claim 6, characterized in that: One end of each of the two sets of pressure-resistant protective tube assemblies (1) can be inserted into the connection ports (201) at both ends of the flexible joint assembly (2). The outer protrusion (101) at one end of each of the two sets of pressure-resistant protective tube assemblies (1) can be embedded into the inner grooves (202) at both ends of the flexible joint assembly (2). The flexible joint assembly (2) can restrict the movement of the pressure-resistant protective tube assembly (1).

8. A pressure-resistant device for a hemodialysis catheter according to claim 7, characterized in that: The flexible joint assembly (2) further includes a fixing connector (23), which is provided as one or more pieces. One end of the fixing connector (23) is fixed to the upper flexible sheet (21) or the lower flexible sheet (22), and the other end of the fixing connector (23) can be clamped or detachably locked to a fixed object around the patient.

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