Hemodialysis indwelling tube fixing assembly

Abstract

The invention relates to the technical field of hemodialysis, and discloses a hemodialysis indwelling tube fixing assembly which comprises a fixing ring, a stress groove is formed in the surface of the fixing ring, a tension spring is fixedly connected to the inner wall of the stress groove, and a pressing ring is fixedly connected to the inner wall, away from the stress groove, of the tension spring; the fixing assembly can be effectively fixed to the arm of a patient by arranging the fixing mechanism matched with the fixing ring and the downward pressing ring, the connecting pipe can be effectively fixed by arranging the reinforcing mechanism on the downward pressing ring, and meanwhile the connecting pipe is sealed by arranging the sealing mechanism fixed to the reinforcing mechanism; and the situation of blood return is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of hemodialysis equipment, in particular to a hemodialysis indwelling tube fixing component. Background Art

[0002] The principle of hemodialysis is mainly to drain the blood from the patient's body through an artificial dialyzer, use the dialysis membrane to exchange substances, remove waste and excess water in the blood, and regulate fluid balance, and then return the purified blood to the patient's body.

[0003] In the prior art, when a patient undergoes hemodialysis, an indwelling catheter needs to be inserted into the patient's blood vessel and kept in the patient's blood vessel for a long time. However, when the indwelling catheter is performed, it is usually fixed with a bandage. The bandage will become loose after a long period of time and must be replaced, resulting in a waste of cost. Summary of the invention

[0004] The object of the present invention is to provide a hemodialysis indwelling tube fixing assembly to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a hemodialysis indwelling tube fixing assembly, comprising a fixing ring, a force-bearing groove is provided on the surface of the fixing ring, a tension spring is fixedly connected to the inner wall of the force-bearing groove, a lower pressure ring is fixedly connected to one end of the tension spring away from the force-bearing groove, a connecting pipe is fixedly connected to the surface of the lower pressure ring, and further comprising:

[0007] A fixing mechanism, the fixing mechanism comprising an elastic frame with two ends respectively fixed on a fixing ring and a lower pressure ring, a telescopic plate fixed on the elastic frame, a right-angle passive plate fixed on the telescopic plate, and a fixed right-angle plate capable of abutting against the lower pressure ring connected to the right-angle passive plate through a limiting elastic rod;

[0008] A reinforcement mechanism, the reinforcement mechanism comprising a reinforcement ring fixed to the lower pressure ring through a connecting column and a spring sheet located at the lower side of the reinforcement ring, the spring sheet and the reinforcement ring being used to clamp and fix the connecting pipe;

[0009] The sealing mechanism comprises a reflux cylinder fixed on a reinforcement ring through a fixing rod and a sealing ball arranged in the reflux cylinder. One end of the reflux cylinder is connected to a connecting pipe, and the other end is connected to a retention tube.

[0010] Furthermore, the number of the tension springs is four, and the four tension springs are symmetrically arranged on the inner wall of the force-bearing groove, and a fixing groove is opened on the surface of the fixing ring.

[0011] Furthermore, a driven rod is fixedly connected to the surface of the telescopic plate, an end of the driven rod away from the telescopic plate is fixedly connected to a passive frame, an extrusion rod is fixedly connected to the top of the telescopic plate, and an end of the extrusion rod away from the telescopic plate is fixedly connected to an elastic plate.

[0012] Furthermore, one end of the passive frame away from the driven rod is fixedly connected to the surface of the elastic plate, and two ends of the limiting elastic rod are respectively fixedly connected to the fixed right-angle plate and the right-angle passive plate.

[0013] Furthermore, the number of the extrusion rods is four, and the four extrusion rods are symmetrically arranged with a fixing ring above the center; the number of the fixed right-angle plates is four, and the fixing ring above the four fixed right-angle plates is symmetrically arranged with a fixing ring above the center.

[0014] Furthermore, an extension groove is provided on the surface of the reinforcement ring, an extension ring is slidably connected to the inner wall of the extension groove, the spring sheet is fixed on the extension ring, and a protective pad is provided on the lower side of the spring sheet.

[0015] Furthermore, a clamping plate is fixed to one end of the fixing rod away from the reinforcement ring, and a surface of the clamping plate is fixedly connected to a surface of the reflux cylinder.

[0016] Furthermore, a sealing cylinder is fixedly connected to the surface of the reflux cylinder, a manual valve is fixedly connected to the surface of the sealing cylinder, an air pressure tube is fixedly connected to the end of the manual valve, a return spring is fixedly connected to the inner wall of the reflux cylinder, and the sealing ball is fixed to the lower end of the return spring.

[0017] Furthermore, one end of the air pressure tube away from the manual valve is fixedly connected to the top of the sealing cylinder and penetrates each other, and the surface of the sealing ball contacts the inner wall of the sealing cylinder.

[0018] The present invention has the following beneficial effects:

[0019] 1. The lower pressure ring in the present invention moves downward under the tension of the tension spring, thereby causing the elastic frame to deform, driving the telescopic plates to move toward each other, and finally causing the fixed right-angle plate to further squeeze and fix the contacting fixed ring and the lower pressure ring, keeping the lower pressure ring and the fixed ring firmly fixed on the arm;

[0020] 2. The reinforcement ring in the reinforcement mechanism is fixedly connected to the lower pressure ring through the connecting column. Therefore, when the lower pressure ring is pulled downward by the tension spring, the reinforcement ring also has a tendency to move downward. Since the spring sheet will conflict with the arm, the spring sheet and the reinforcement ring cooperate to squeeze the connecting pipe, thereby firmly reinforcing and fixing the connecting pipe.

[0021] 3. The reflux cylinder of the sealing mechanism is fixed to the reinforcement ring through a fixing rod, so that the sealing mechanism and the reinforcement ring form an integrated structure, maintaining the integrity of the entire fixed assembly, and through the setting of the sealing ball, the reflux cylinder can be blocked and opened. When dialysis operation is not required, the reflux cylinder is kept closed to prevent blood return.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the overall structure of the fixing mechanism of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the driven rod of the present invention;

[0028] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of part A;

[0029] Figure 6 It is a schematic diagram of the overall structure of the reinforcement mechanism of the present invention;

[0030] Figure 7 It is a schematic diagram of the extended ring structure of the present invention;

[0031] Figure 8 It is a schematic diagram of the overall structure of the sealing mechanism of the present invention;

[0032] Fig. 9 It is a schematic diagram of the sealing ball structure of the present invention.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] In the figure: 1. fixing ring; 2. tension spring; 3. connecting pipe; 10. fixing mechanism; 11. elastic frame; 12. telescopic plate; 13. right-angle passive plate; 14. limiting elastic rod; 15. fixed right-angle plate; 16. anti-slip strip; 17. driven rod; 18. passive frame; 19. extrusion rod; 20. elastic plate; 21. lower pressure ring; 30. reinforcement mechanism; 31. connecting column; 32. reinforcement ring; 33. fixing rod; 34. clamping plate; 35. extension ring; 36. spring; 37. pad; 50. sealing mechanism; 51. reflux tube; 52. retention tube; 53. sealing tube; 54. manual valve; 55. air pressure tube; 56. reset spring; 57. sealing ball; 58. sliding frame; 59. passive rod. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1 - Fig. 9 As shown, the present invention is a hemodialysis indwelling tube fixing assembly, comprising a fixing ring 1, a force groove is opened on the surface of the fixing ring 1, a tension spring 2 is fixedly connected to the inner wall of the force groove, a lower pressure ring 21 is fixedly connected to the inner wall of the tension spring 2 away from the force groove, a connecting tube 3 is fixedly connected to the surface of the lower pressure ring 21, one end of the connecting tube 3 passes through the rear side of the lower pressure ring 21 to serve as a joint connected to the hemodialysis equipment, and also includes;

[0037] The fixing mechanism 10 includes a limiting elastic rod 14, the end of which is fixedly connected to a fixed right-angle plate 15, and the surface of the fixed right-angle plate 15 is fixedly connected to an anti-slip strip 16;

[0038] The reinforcement mechanism 30 includes an extension ring 35, a spring sheet 36 is fixedly connected to the surface of the extension ring 35, and a pad 37 is fixedly connected to the surface of the spring sheet 36;

[0039] The sealing mechanism 50 includes a sealing ball 57 , a surface of the sealing ball 57 is rotatably connected to a sliding frame 58 , and an end of the sliding frame 58 away from the sealing ball 57 is rotatably connected to a passive rod 59 .

[0040] There are four tension springs 2 , which are symmetrically arranged on the inner wall of the force-bearing groove, and a fixing groove is provided on the surface of the fixing ring 1 .

[0041] The fixing mechanism 10 includes an elastic frame 11, and the number of the elastic frames 11 is two. The two elastic frames 11 are symmetrically arranged on both sides of the fixing ring 1, and the upper and lower ends of the elastic frame 11 are respectively fixed on the sides of the fixing ring 1 and the lower pressure ring 21, and the elastic frame 11 is a C-shaped structure, wherein the vertical rod of the elastic frame 11 is an arc structure with the middle part bent toward the direction of the fixing ring 1, and the middle surface of the elastic frame 11 is fixedly connected with a telescopic plate 12, and the end of the telescopic plate 12 is fixedly connected with a right-angle passive plate 13, and the surface of the telescopic plate 12 is fixedly connected with a driven rod 17, and the end of the driven rod 17 away from the telescopic plate 12 is fixedly connected with a passive frame 18, and the top of the telescopic plate 12 is fixedly connected with an extrusion rod 19, and the end of the extrusion rod 19 away from the telescopic plate 12 is fixedly connected with an elastic plate 20, thereby effectively fixing the patient's arm to prevent the indwelling tube from loosening.

[0042] One end of the limiting elastic rod 14 away from the fixed right-angle plate 15 is fixedly connected to the surface of the right-angle passive plate 13, and there are four extrusion rods 19, which are symmetrically arranged on the two telescopic plates 12 with the fixed ring 1 as the center. The two extrusion rods 19 at the same end of the two telescopic plates 12 are fixed on the end of the same elastic plate 20, and the two elastic plates 20 are slightly bent so that when the two ends of the two elastic plates 20 receive extrusion force, the middle parts of the two elastic plates 20 can move in a direction close to each other. There are four fixed right-angle plates 15, which are symmetrically arranged on the fixed ring 1 as the center.

[0043] The reinforcement mechanism 30 includes a connecting column 31, the end of which is fixedly connected to a reinforcement ring 32, and the reinforcement ring 32 is fixedly connected to a fixing rod 33. When the reinforcement ring 32 moves, it will drive the fixing rod 33 to move downward. The end of the fixing rod 33 away from the reinforcement ring 32 is fixedly connected to a clamping plate 34, thereby effectively reinforcing the connecting tube 3 to prevent the patient from shifting when moving.

[0044] One end of the connecting column 31 away from the reinforcement ring 32 is fixedly connected to the surface of the lower pressure ring 21. An extension groove is provided on the surface of the reinforcement ring 32. The surface of the extension ring 35 is slidably connected to the inner wall of the extension groove. There are two clamping plates 34. When the fixing rod 33 moves, it will drive the clamping plates 34 to move downward. The two clamping plates 34 are symmetrically arranged with the connecting tube 3 as the center.

[0045] The sealing mechanism 50 includes a reflux tube 51. When the clamping plate 34 moves downward, the reflux tube 51 is driven to move downward. The end of the reflux tube 51 is fixedly connected with a retention tube 52. The surface of the reflux tube 51 is fixedly connected with a sealing tube 53. The surface of the sealing tube 53 is fixedly connected with a manual valve 54. Then the manual valve 54 is started to add air pressure to the inner wall of the air pressure tube 55. The end of the manual valve 54 is fixedly connected with the air pressure tube 55. The inner wall of the reflux tube 51 is fixedly connected with a return spring 56, which effectively seals when hemodialysis is not needed to prevent blood reflux.

[0046] The connecting pipe 3 completely penetrates the surface of the connecting column 31 and is fixedly connected to the end of the reflux cylinder 51. The end of the retention tube 52 and the end of the reflux cylinder 51 are mutually connected. The surface of the clamping plate 34 is fixedly connected to the surface of the reflux cylinder 51. The end of the air pressure tube 55 away from the manual valve 54 is fixedly connected to the top of the sealing cylinder 53 and mutually connected. The surface of the sealing ball 57 contacts the inner wall of the sealing cylinder 53. The inner wall of the reflux cylinder 51 is provided with a sliding groove. The surface of the sliding frame 58 is slidably connected to the inner wall of the sliding groove.

[0047] When in use, the fixing ring 1 and the lower pressure ring 21 are pulled up and down respectively, the patient's arm is inserted between the fixing ring 1 and the lower pressure ring 21, and then the patient is placed in the fixing groove on the surface of the fixing ring 1, and the fixing ring 1 and the lower pressure ring 21 are loosened. Under the tension of the tension spring 2, the lower pressure ring 21 drives the connecting tube to move downward, and the elastic frame 11 is squeezed by the lower pressure ring 21 and the fixing ring 1. At this time, the middle part of the elastic frame 11 will bend and extend toward a place close to each other, and the corresponding extension will push the telescopic plate 12 to move in a direction close to each other, and at the same time, it will drive the squeezing rod 19 to move in a direction close to each other. When the squeezing rod 19 moves, it will squeeze the elastic plate 20 and cause the middle part thereof to bend. When the middle part of the elastic plate 20 bends, it will push the passive The frame 18 moves in a direction approaching each other. When the passive frame 18 moves, it drives the driven rod 17 to move in a direction approaching each other, and causes the telescopic plate 12 to shrink in a direction approaching each other. When the telescopic plate 12 shrinks, it pushes the right-angle passive plate 13 to move in a direction approaching each other. When the right-angle passive plate 13 moves, it pushes the limiting elastic rod 14 to move in a direction approaching each other. When the limiting elastic rod 14 moves, it pushes the fixed right-angle plate 15 to move in a direction approaching each other. When the fixed right-angle plate 15 moves, it drives the anti-slip strip 16 to move in a direction approaching each other and fixes to the surface of the lower pressure ring 21, thereby further strengthening the fixation of the conflicting fixed ring 1 and the lower pressure ring 21. When the lower pressure ring 21 moves downward, it drives the connecting column 31 downward When the connecting column 31 moves, the reinforcing ring 32 will be driven to move downward, and when the reinforcing ring 32 moves downward, the connecting tube 3 will be driven to move downward, and when the reinforcing ring 32 moves, the fixing rod 33 will be driven downward, and when the fixing rod 33 moves, the clamping plate 34 will be driven downward, and when the reinforcing ring 32 moves, the extension ring 35 will be driven downward, and when the extension ring 35 moves, the spring sheet 36 will be pushed downward, and when the spring sheet 36 moves, the pad 37 will be pushed downward, and when the pad 37 contacts the patient's arm, the spring sheet 36 will be squeezed backward, and when the spring sheet 36 is squeezed, it will push the extension ring 35 to extend in a circular shape on the inner wall of the extension groove in a direction away from each other, and when the clamping plate 34 moves downward, the reflux cylinder 51 will be driven downward Move, when the reflux tube 51 moves downward, it will drive the indwelling tube 52 to move downward, keep the indwelling tube 52 inserted in the patient's body, so as to fix the indwelling tube, when the reflux tube 51 moves downward, it will drive the sealing tube 53 to move downward, connect the manual valve 54 with the inflation device, and then transmit the air pressure to the inner wall of the sealing tube 53 through the air pressure tube 55 and push the sealing ball 57, when the sealing ball 57 is pushed by the air pressure, it will move downward and pull the reset spring 56, when the sealing ball 57 moves downward, it will pull the passive rod 59 to move downward, when the passive rod 59 moves, it will pull the sliding frame 58 to move towards each other on the inner wall of the sliding groove; the passive rod 59 and the sliding frame 58 support the sealing ball 57.

[0048] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A hemodialysis indwelling tube fixing assembly, comprising a fixing ring (1), a force-bearing groove is provided on the surface of the fixing ring (1), a tension spring (2) is fixedly connected to the inner wall of the force-bearing groove, a lower pressure ring (21) is fixedly connected to the end of the tension spring (2) away from the force-bearing groove, and a connecting tube (3) is fixedly connected to the surface of the lower pressure ring (21), characterized in that: Also includes: A fixing mechanism (10), the fixing mechanism (10) comprising an elastic frame (11) whose two ends are respectively fixed to a fixing ring (1) and a lower pressure ring (21), a telescopic plate (12) being fixed to the elastic frame (11), a right-angle passive plate (13) being fixed to the telescopic plate (12), and a fixed right-angle plate (15) capable of contacting the lower pressure ring (21) being connected to the right-angle passive plate (13) via a limiting elastic rod (14); A reinforcement mechanism (30), the reinforcement mechanism (30) comprising a reinforcement ring (32) fixed to the lower pressure ring (21) via a connecting column (31) and a spring sheet (36) located at the lower side of the reinforcement ring (32), the spring sheet (36) and the reinforcement ring (32) being used to clamp and fix the connecting pipe (3); A sealing mechanism (50) comprising a reflux cylinder (51) fixed to a reinforcement ring (32) via a fixing rod (33) and a sealing ball (57) arranged in the reflux cylinder (51); one end of the reflux cylinder (51) is connected to a connecting tube (3) and the other end is connected to a retention tube (52).

2. A hemodialysis indwelling tube fixing assembly according to claim 1, characterized in that: The number of the tension springs (2) is four, and the four tension springs (2) are symmetrically arranged on the inner wall of the force-bearing groove, and a fixing groove is provided on the surface of the fixing ring (1).

3. A hemodialysis indwelling tube fixing assembly according to claim 1, characterized in that: A driven rod (17) is fixedly connected to the surface of the telescopic plate (12), an end of the driven rod (17) away from the telescopic plate (12) is fixedly connected to a passive frame (18), a top of the telescopic plate (12) is fixedly connected to an extrusion rod (19), and an end of the extrusion rod (19) away from the telescopic plate (12) is fixedly connected to an elastic plate (20).

4. A hemodialysis indwelling tube fixing assembly according to claim 3, characterized in that: One end of the passive frame (18) away from the driven rod (17) is fixedly connected to the surface of the elastic plate (20), and the two ends of the limiting elastic rod (14) are respectively fixedly connected to the fixed right-angle plate (15) and the right-angle passive plate (13).

5. The hemodialysis indwelling tube fixing assembly according to claim 3, characterized in that: The number of the extrusion rods (19) is four, and the four extrusion rods (19) are arranged symmetrically with respect to the fixing ring (1) at the center. The number of the fixed right-angle plates (15) is four, and the four fixed right-angle plates (15) are arranged symmetrically with respect to the fixing ring (1) at the center.

6. A hemodialysis indwelling tube fixing assembly according to claim 1, characterized in that: An extension groove is provided on the surface of the reinforcement ring (32), an extension ring (35) is slidably connected to the inner wall of the extension groove, the spring sheet (36) is fixed on the extension ring (35), and a protective pad (37) is provided on the lower side of the spring sheet (36).

7. The hemodialysis indwelling tube fixing assembly according to claim 1, characterized in that: A clamping plate (34) is fixed to one end of the fixing rod (33) away from the reinforcement ring (32), and a surface of the clamping plate (34) is fixedly connected to a surface of the reflux cylinder (51).

8. The hemodialysis indwelling tube fixing assembly according to claim 1, characterized in that: A sealing cylinder (53) is fixedly connected to the surface of the reflux cylinder (51), a manual valve (54) is fixedly connected to the surface of the sealing cylinder (53), an air pressure tube (55) is fixedly connected to the end of the manual valve (54), a return spring (56) is fixedly connected to the inner wall of the reflux cylinder (51), and the sealing ball (57) is fixed to the lower end of the return spring (56).

9. A hemodialysis indwelling tube fixing assembly according to claim 8, characterized in that: One end of the air pressure tube (55) away from the manual valve (54) is fixedly connected to the top of the sealing tube (53) and is interconnected. The surface of the sealing ball (57) contacts the inner wall of the sealing tube (53).

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