Hemodialysis nursing blood sampling equipment

Abstract

The utility model relates to hemodialysis nursing blood sampling equipment which comprises a bottom plate and a supporting plate, a plurality of mounting holes are formed in the supporting plate, and a vacuum tube is placed in each mounting hole; a filling hole is reserved between the vacuum tube and the mounting hole; the alignment mechanism comprises an alignment groove, a liquid conveying disc is arranged in the alignment groove, the liquid conveying disc is connected with one end of a liquid conveying header pipe, and the liquid conveying disc is further connected with a plurality of vacuum pipes through a plurality of liquid conveying branch pipes; the mounting hole limiting mechanism comprises a screw rod, a sliding block, connecting rods and limiting blocks, the sliding block is arranged on the screw rod, the sliding block moves up and down along the screw rod, the connecting rods matched with the mounting holes in number are arranged on the sliding block, each connecting rod is provided with the limiting block, and the limiting blocks are matched with the filling holes. According to the vacuum tube fixing device, the multiple limiting blocks are arranged, the screw is rotated, the multiple limiting blocks move upwards or downwards, the multiple vacuum tubes can be fixed or the fixed state is relieved, the time for fixing the multiple vacuum tubes and the time for relieving the fixed state are shortened, operation is convenient, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of blood sampling, in particular to a blood sampling device for hemodialysis nursing. Background Art

[0002] Hemodialysis is one of the renal replacement therapies for patients with acute and chronic renal failure. It drains blood from the body to the outside of the body through a dialyzer composed of countless hollow fibers. The blood and an electrolyte solution containing electrolytes at concentrations similar to those in the body are exchanged through convection inside and outside the hollow fibers to remove metabolic waste from the body, maintain electrolyte and acid-base balance, and remove excess water from the body. The entire process of returning the purified blood is called hemodialysis. During hemodialysis care, the patient's blood is usually sampled for examination.

[0003] Some existing hemodialysis care blood sampling devices use a blood collection needle connected to a catheter and a vacuum tube to be inserted subcutaneously to draw blood samples, and the drawn blood samples are stored in the vacuum tube. However, since the drawn blood needs to be transferred, the blood is easily contaminated when the blood container is disassembled, and the safety is low.

[0004] A Chinese patent with application number 202223436785.6 discloses a blood sampling device. When in use, the staff can first close the B mounting ring, then tighten the bolts to fix the vacuum tube, and then manually rotate the handle to adjust the height of the vacuum tube so that the two vacuum tubes are docked with the A needle and the B needle respectively, thereby improving the safety of use. At the same time, the staff can turn the valve. When the first vacuum tube collects a certain amount of blood, the valve can be turned to allow the blood to flow into the second vacuum tube, thereby avoiding the blood being exposed to the air and easily contaminated during the replacement of the vacuum tube.

[0005] In view of the above problems, the existing patent provides a solution. However, when fixing multiple vacuum tubes, the bolts need to be tightened separately to complete the fixation of the vacuum tubes. After the blood collection is completed, the bolts need to be loosened separately to release the fixed state of the vacuum tubes and take out the vacuum tubes. During this process, the operation is time-consuming and labor-intensive, which makes the fixation and removal of the vacuum tubes inconvenient. Utility Model Content

[0006] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the utility model provides a blood sampling device for hemodialysis nursing.

[0007] The utility model solves the technical problem by adopting the following technical solution: a blood sampling device for hemodialysis care, comprising a bottom plate and a support plate, wherein the support plate is located at the upper part of the bottom plate, a plurality of support columns are arranged between the bottom plate and the support plate, and a plurality of mounting holes are arranged on the support plate, wherein the size of the mounting holes is larger than the outer diameter of the vacuum tube, and a vacuum tube is placed in each of the mounting holes; a filling hole is reserved between the vacuum tube and the mounting hole;

[0008] The support plate is provided with an alignment mechanism, the alignment mechanism includes an alignment slot, an infusion tray is arranged in the alignment slot, the infusion tray is connected to one end of the infusion main pipe, the other end of the infusion main pipe is connected to the needle, and the infusion tray is also connected to a plurality of vacuum tubes respectively through a plurality of infusion branch pipes;

[0009] The bottom plate is provided with a mounting hole limiting mechanism, and the mounting hole limiting mechanism includes a screw, a slider, a connecting rod and a limiting block. One end of the screw is set on the bottom plate, and the other end is rotatably set at the bottom of the support plate. The screw is provided with a slider, and the slider moves up and down along the screw. The slider is provided with connecting rods matching the number of mounting holes, and each connecting rod is provided with a limiting block, and the limiting block matches the filling hole.

[0010] In a preferred embodiment of the utility model, a rotating block is provided at one end of the screw rod arranged on the bottom plate, and the outer surface of the rotating block is provided with anti-slip grooves.

[0011] In a preferred embodiment of the present utility model, a buffer pad is provided on the inner wall of the mounting hole, and a buffer pad is also provided on the outer wall of the limiting block.

[0012] In a preferred embodiment of the present invention, a plurality of guide rods are vertically provided at the bottom end of the support plate, and the slide block passes through the guide rods.

[0013] In a preferred embodiment of the utility model, the alignment mechanism also includes a buffer mechanism, which includes a buffer frame arranged at the bottom end of the alignment groove, a plurality of buffer rods are provided at the bottom end of the buffer frame, a buffer sleeve is provided on the buffer rod, a vertical rod is provided inside the buffer sleeve, a spring is provided on the outer ring of the vertical rod, and the buffer sleeve moves downward along the vertical rod to compress the spring.

[0014] In a preferred embodiment of the utility model, a protection rod is further provided on the support plate, a protection groove is provided at the bottom end of the protection rod, and the vertical rod extending out of the buffer sleeve is matched and inserted into the protection groove.

[0015] The beneficial effects of the utility model are as follows: the present application sets a plurality of limit blocks and rotates the screw rod to move the plurality of limit blocks upward or downward, thereby completing the fixing or releasing of the fixed state of a plurality of vacuum tubes, shortening the time for fixing and releasing the fixed state of the plurality of vacuum tubes, thereby facilitating the fixing or disassembly of the plurality of vacuum tubes; the present application sets a positioning mechanism to realize the function of quickly connecting the infusion branch tube with the vacuum tube, and through the cooperation of the spring, the vertical rod, the buffer sleeve and the buffer rack, the infusion branch tube can be quickly positioned, thereby facilitating the plugging of the infusion branch tube with the plurality of vacuum tubes, and the infusion branch tube can be separated from the plurality of vacuum tubes, thereby saving time and effort, thereby facilitating the blood collection of the plurality of vacuum tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the screw rod, the bottom plate and the support plate of the utility model;

[0018] Figure 3 This is a schematic diagram of the screw structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the buffer mechanism of the utility model;

[0020] In the figure: base plate 1; rotating block 101; support plate 2; mounting hole 201; filling hole 202; protection rod 203; support column 3; vacuum tube 4; alignment groove 501; buffer frame 502; buffer rod 503; buffer sleeve 504; spring 505; vertical rod 506; infusion tray 601; infusion main pipe 602; infusion branch pipe 603; needle 7; screw 801; slider 802; connecting rod 803; limit block 804; guide rod 805; buffer pad 9. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0023] like Figures 1 to 4 A blood sampling device for hemodialysis care is shown, comprising a base plate 1 and a support plate 2, wherein the support plate 2 is located on the upper part of the base plate 1, and a plurality of support columns 3 are arranged between the base plate 1 and the support plate 2, through which the base plate 1 and the support plate 2 are connected, and a plurality of mounting holes 201 are arranged on the support plate 2, wherein a vacuum tube 4 is placed in each mounting hole 201, and the size of the mounting hole 201 in the present application is larger than the outer diameter of the vacuum tube 4, so as to facilitate the rapid placement of the vacuum tube 4 in the mounting hole 201, or the rapid removal of the vacuum tube 4 from the mounting hole 201; after the vacuum tube 4 is placed in the mounting hole 201, a filling hole 202 is left between the vacuum tube 4 and the mounting hole 201;

[0024] The support plate 2 is provided with an alignment mechanism, which includes an alignment groove 501, an infusion tray 601 is provided in the alignment groove 501, the infusion tray 601 is connected to one end of the infusion main pipe 602, the other end of the infusion main pipe 602 is connected to the needle 7, and the infusion tray 601 is also connected to multiple vacuum tubes 4 respectively through multiple infusion branch pipes 603; the needle 7 is inserted into the patient's body for blood sampling, and the blood is transported to the vacuum tube 4 through the infusion main pipe 602, the infusion tray 601, and the infusion branch pipe 603, so as to achieve the sampling of the patient's blood;

[0025] The bottom plate 1 is provided with a mounting hole limiting mechanism, and the mounting hole limiting mechanism includes a screw 801, a slider 802, a connecting rod 803 and a limiting block 804. One end of the screw 801 is arranged on the bottom plate 1, and the other end is rotatably arranged at the bottom end of the support plate 2. Specifically, the screw 801 is respectively arranged on the bottom plate and the support plate through bearings, and a slider 802 is provided on the screw 801. The slider 802 moves up and down along the screw 801. The slider 802 is provided with connecting rods 803 matching the number of mounting holes 201, and each of the connecting rods 803 is provided with a limiting block 804, and the limiting block 804 matches the filling hole 202; the slider 802 is driven by the screw 801 to move up, and then the connecting rod 803 is driven to move up, and finally the limiting block 804 is driven by the connecting rod 803 to move up and insert into the filling hole 202 between the vacuum tube 4 and the mounting hole 201, so as to fix the vacuum tube 4 in the mounting hole 201.

[0026] When the hemodialysis nursing blood sampling device of the utility model is used, a plurality of vacuum tubes 4 are placed in the corresponding mounting holes 201. The mounting holes 201 in the present application are larger than the vacuum tubes 4. When the vacuum tubes 4 are placed in the mounting holes 201, the vacuum tubes 4 are placed against one side of the inner wall of the mounting holes 201, and a filling hole 202 is left between the vacuum tubes 4 and the mounting holes 201. The infusion tray 601 is placed in the alignment groove 501, and the infusion branch pipe 601 connected to the infusion tray 601 is placed in the alignment groove 501. 3 is inserted into the corresponding vacuum tube 4; then the screw rod 801 is rotated by external force, and the slider 802 sleeved on the screw rod 801 moves upward along the screw rod 801 during the rotation process. The slider 802 drives the connecting rod 803 in the process of moving upward, and then drives the limit block 804 on the connecting rod 803 to move upward until the limit block 804 is matched and inserted into the filling hole 202 between the vacuum tube 4 and the installation hole 201, and the installation hole 201 is fixed by the limit block 804 and the vacuum tube 4. The filling holes 201 are filled, that is, the vacuum tube 4 is limited and fixed by the limit block 804. In this application, since the slider 802 is provided with connecting rods 803 matching the number of vacuum tubes 4, and each connecting rod 803 is respectively provided with a limit block 804, that is, the upward movement of the slider 802 drives multiple limit blocks 804 to move upward at the same time, so that multiple limit blocks 804 can fill multiple filling holes 202 at the same time, and multiple vacuum tubes 4 can be limited and fixed at the same time, which is convenient for the use of the vacuum tube 4. After the vacuum tube 4 is fixed, the needle is inserted into the patient's body to collect blood, and the blood is transported to the vacuum tube 4 through the infusion main pipe 602, the infusion tray 601, and the infusion branch pipe 603 to achieve the sampling of the patient's blood; after the blood collection is completed, the screw 801 is reversed, so that the multiple limit blocks 804 move downward along the screw under the driving action of the slider 802, so that the limit blocks fall off the filling hole 202, thereby releasing the fixation of the vacuum tube 4, and facilitating the rapid removal of the vacuum tube 4 from the installation hole 201.

[0027] As a preferred embodiment, a rotating block 101 is provided at one end of the screw arranged on the base plate 1 in the present application, and the outer surface of the rotating block 101 is provided with anti-slip grooves; when the sampling device of the utility model is in use, the base plate 1 can be placed on the bracket, and the medical staff manually reaches into the bottom end of the base plate 1, holds the rotating block 101 and drives the rotating block 1 to rotate, thereby realizing the rotation of the screw 801 and then realizing the final limit block 804 moving upward and extending into the filling hole 202; the setting of the rotating block 101 provides a force point for the rotation of the screw 801, which is convenient for driving the screw to rotate.

[0028] As a preferred embodiment, a buffer pad 9 is provided on the inner wall of the mounting hole 101, and a buffer pad 9 is also provided on the outer wall of the limit block 804. The buffer pad 9 is used to provide buffer protection for the vacuum tube 4 to reduce damage to the vacuum tube 4.

[0029] As a preferred embodiment, a plurality of guide rods 805 are vertically provided at the bottom end of the support plate 2, and the slider 802 passes through the guide rods 805. When the slider 802 moves up and down along the screw rod 801, the setting of the guide rods 805 makes the movement of the limit block 804 driven by the slider 802 more stable, thereby ensuring the stability of fixing and releasing the vacuum tube 4.

[0030] As a preferred embodiment, the alignment mechanism also includes a buffer mechanism, which includes a buffer frame 502 arranged at the bottom end of the alignment groove 501, a plurality of buffer rods 503 are provided at the bottom end of the buffer frame 502, a buffer sleeve 504 is provided on the buffer rod 503, a vertical rod 506 is provided inside the buffer sleeve 504, a spring 505 is provided on the outer ring of the vertical rod 506, and the buffer sleeve 504 moves downward along the vertical rod 506 to compress the spring 505.

[0031] When in use, multiple vacuum tubes 8 are inserted into the mounting holes 201. At the same time, the multiple vacuum tubes 4 are supported by the support plate 2. Then, the rotating block 101 is rotated to drive the threaded rod 801 to rotate, so that the multiple limit plates 804 move upward to contact the vacuum tubes 4, thereby fixing the positions of the vacuum tubes 4.

[0032] Then, the needle 7 is inserted into the patient's subcutaneous tissue, and then the infusion tray 601 is brought into contact with the alignment groove 501 to perform the alignment operation, and then the infusion tray 601 is moved downward to press the alignment groove 501, thereby driving the buffer frame 502 and the buffer rod 503 to move downward, and finally driving the buffer sleeve 504 to move downward along the vertical rod 506 to compress the spring 505. When the infusion branch pipe is inserted into the multiple vacuum tubes 4, the buffer sleeve 504 moves downward along the vertical rod 506 to be in place, and the blood enters the multiple vacuum tubes 8 respectively through the infusion main pipe 602, the infusion tray 601, and the infusion branch pipe 603. After the blood collection is completed, the buffer sleeve 504, the buffer rod 503, the buffer frame 502 and the infusion branch pipe are moved upward by the reset elastic force of the spring 505, thereby separating the infusion branch pipe from the multiple vacuum tubes 4;

[0033] Finally, the needle 7 is removed, and then the rotating block 101 is rotated in the opposite direction to rotate the threaded rod 801 in the opposite direction, thereby moving the plurality of limit blocks 804 downward to separate from the vacuum tube 4, releasing the fixed state of the vacuum tube 4, and then taking out the plurality of vacuum tubes 4. As a preferred embodiment, a protective rod 203 is further provided on the support plate 2, and a protective groove is provided at the bottom end of the protective rod 203, and the vertical rod extending out of the buffer sleeve is matched and inserted into the protective groove. The provision of the protective rod 203 prevents the vertical rod extending out of the buffer groove from being exposed to cause harm to medical staff.

[0034] The present application sets a plurality of limit blocks and rotates the screw rod to move the plurality of limit blocks upward or downward, thereby completing the fixing or releasing of the fixed state of the plurality of vacuum tubes, shortening the time for fixing and releasing the fixed state of the plurality of vacuum tubes, and further facilitating the fixing or removal of the plurality of vacuum tubes; the present application sets a positioning mechanism to realize the function of quickly connecting the infusion branch tube with the vacuum tube, and through the cooperation of the spring, the vertical rod, the buffer sleeve and the buffer rack, the infusion branch tube can be quickly positioned, thereby facilitating the plugging of the infusion branch tube with the plurality of vacuum tubes, and the infusion branch tube can be separated from the plurality of vacuum tubes, saving time and effort, and further facilitating the blood collection of the plurality of vacuum tubes.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0036] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A blood sampling device for hemodialysis care, characterized in that: It includes a bottom plate and a support plate, wherein the support plate is located at the upper part of the bottom plate, a plurality of support columns are arranged between the bottom plate and the support plate, and a plurality of mounting holes are arranged on the support plate, wherein the size of the mounting holes is larger than the outer diameter of the vacuum tube, and a vacuum tube is placed in each of the mounting holes; a filling hole is left between the vacuum tube and the mounting hole; The support plate is provided with an alignment mechanism, the alignment mechanism includes an alignment slot, an infusion tray is arranged in the alignment slot, the infusion tray is connected to one end of the infusion main pipe, the other end of the infusion main pipe is connected to the needle, and the infusion tray is also connected to a plurality of vacuum tubes respectively through a plurality of infusion branch pipes; The bottom plate is provided with a mounting hole limiting mechanism, and the mounting hole limiting mechanism includes a screw, a slider, a connecting rod and a limiting block. One end of the screw is set on the bottom plate, and the other end is rotatably set at the bottom of the support plate. The screw is provided with a slider, and the slider moves up and down along the screw. The slider is provided with connecting rods matching the number of mounting holes, and each connecting rod is provided with a limiting block, and the limiting block matches the filling hole.

2. The hemodialysis nursing blood sampling device according to claim 1, characterized in that: A rotating block is arranged at one end of the screw rod arranged on the bottom plate, and an anti-slip pattern is arranged on the outer surface of the rotating block.

3. The hemodialysis nursing blood sampling device according to claim 1, characterized in that: A buffer pad is provided on the inner wall of the mounting hole, and a buffer pad is also provided on the outer wall of the limiting block.

4. The hemodialysis nursing blood sampling device according to claim 1 or 3, characterized in that: A plurality of guide rods are vertically arranged at the bottom end of the support plate, and the slide block passes through the guide rods.

5. The hemodialysis nursing blood sampling device according to claim 1, characterized in that: The alignment mechanism also includes a buffer mechanism, which includes a buffer frame arranged at the bottom end of the alignment groove, a plurality of buffer rods are provided at the bottom end of the buffer frame, a buffer sleeve is provided on the buffer rod, a vertical rod is provided inside the buffer sleeve, a spring is provided on the outer ring of the vertical rod, and the buffer sleeve moves downward along the vertical rod to compress the spring.

6. The hemodialysis nursing blood sampling device according to claim 5, characterized in that: The support plate is also provided with a protection rod, the bottom end of which is provided with a protection groove, and the vertical rod extending out of the buffer sleeve is matched and inserted into the protection groove.

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