Dialysate sampling device and method

Abstract

The invention relates to a dialysate sampling device and method, and relates to the technical field of medical instruments. Comprising a pushing shell, a holding shell, a pushing piece, a first fixing piece, a second fixing piece, a driving piece and a transmission piece. A first accommodating space is formed in the pushing shell; a second accommodating space is formed in the holding shell, the holding shell is vertically arranged on the pushing shell, and the second accommodating space is communicated with the first accommodating space; the pushing part is arranged in the first accommodating space in a sliding manner; the first fixing piece is arranged on the pushing shell and is used for fixing the injection needle cylinder; the second fixing piece is arranged at the end, close to the first fixing piece, of the pushing piece. The driving part is arranged in the second accommodating space; one end of the transmission part is connected with the driving part, and the other end is connected with the pushing part. The problems that in the single-hand operation process of an existing dialysate sampling device, sampling is difficult, the operation time is long, the sampling efficiency of dialysate is affected, blood coagulation of a patient is caused, and the risk that the dehydration amount of the patient is not accurate is caused are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a dialysate sampling device and method. Background Art

[0002] The dialysis machine needs to regularly test the total bacteria count and endotoxins of the dialysate. In clinical operations, in order to reduce interference from external factors, the dialysate is sampled when the instrument reaches the normal dialysis state after normal self-test. The bypass connected to the dialysis machine is removed for sampling. When sampling, a syringe is generally used for sampling. The syringe includes an injection push rod and an injection syringe, and a needle is provided at the end of the injection syringe. When sampling, the needle is inserted into the bypass, and then the injection push rod is pulled to draw the dialysate in the bypass into the injection syringe.

[0003] During use of the existing dialysate sampling device, one hand is required to hold the bypass during the process of aspirating the dialysate, and the other hand is required to control the syringe to insert into the bypass and pull out the injection push rod to sample the dialysate. This makes it difficult to control the syringe with one hand and is not easy to operate, resulting in a long operation time, which not only affects the efficiency of dialysate sampling, but also may cause the dialysis machine to alarm and stop the pump due to the long operation time, causing the risk of blood coagulation in the patient. The amount of dialysate leakage during the sampling process is closely related to the amount of dehydration of the patient. Since the leakage amount cannot be calculated during the operation, the amount of dehydration of the patient may also deviate.

[0004] With regard to the above-mentioned related technologies, there are problems in that the existing dialysate sampling device is difficult to sample during one-handed operation, the operation time is long, the sampling efficiency of the dialysate is affected, and there is a risk of causing blood coagulation and inaccurate dehydration of the patient. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a dialysate sampling device and method, aiming to solve the problems that the existing dialysate sampling device is difficult to sample during one-handed operation, the operation time is long, the sampling efficiency of the dialysate is affected, and there is a risk of causing coagulation in the patient and causing inaccurate dehydration of the patient.

[0006] The present application provides a dialysate sampling device and method using the following technical solution: A dialysate sampling device and method, comprising:

[0007] The outer shell is pushed to form a first accommodation space;

[0008] A gripping shell having a second accommodating space formed therein, the gripping shell being vertically arranged on the pushing shell, and the second accommodating space being communicated with the first accommodating space;

[0009] A pushing member, slidably disposed in the first accommodation space;

[0010] A first fixing member, disposed on the pushing housing, and used to fix the injection syringe;

[0011] A second fixing member, disposed at one end of the pushing member close to the first fixing member, the second fixing member being used to fix the injection push rod;

[0012] A driving member, disposed in the second accommodation space;

[0013] A transmission member, one end of which is connected to the driving member, and the other end of which is connected to the pushing member;

[0014] A leakage collection component, disposed on the push housing, and used for collecting the leaked dialysate;

[0015] Wherein, the driving member is used to drive the transmission member to push the pushing member to slide.

[0016] Optionally, the driving member is arranged on the inner wall of the holding shell;

[0017] The transmission member is a first worm, one end of which is arranged at the driving end of the driving member;

[0018] The pushing member is a second worm gear, and the second worm gear is meshed with the first worm gear.

[0019] Optionally, a limiting member is provided on the inner wall of the pushing shell, a threaded channel is provided on the limiting member, and the second worm is threadedly connected to the threaded channel.

[0020] Optionally, the pushing housing includes an extension piece and a receiving piece, the first receiving space is arranged in the receiving piece, and the extension piece is arranged on the receiving piece;

[0021] The first fixing member is arranged on the extending member;

[0022] The second fixing member is rotatably arranged on the pushing member, the extending member is provided with a slide groove, the second fixing member is provided with a slider, and the slider is slidably arranged on the slide groove;

[0023] The leakage liquid collection component is arranged at an end of the extension member away from the receiving member.

[0024] Optionally, a clamping groove is provided on a side of the second fixing member close to the first fixing member, and the clamping groove is used to clamp with the injection push rod.

[0025] Optionally, the first fixing member includes a first syringe fixing portion and a second syringe fixing portion, the first syringe fixing portion is arranged on the extension member, the first syringe fixing portion and the second syringe fixing portion are detachably connected, and the first syringe fixing portion and the second syringe fixing portion are used to clamp the injection syringe in the middle.

[0026] Optionally, the dialysate sampling device includes a central control unit and a power supply unit, the central control unit and the power supply unit are both arranged in the second accommodating space, and the power supply unit and the driving unit are both electrically connected to the central control unit;

[0027] A switch button is provided on the middle control, and the switch button is used to control the start or close of the middle control.

[0028] Optionally, a forward button and a back button are provided on the central control, the forward button is used to control the pushing member to move in a direction close to the first fixing member, and the back button is used to control the pushing member to move in a direction away from the first fixing member.

[0029] A dialysate sampling method, applied to any of the dialysate sampling devices described above, the method comprising:

[0030] The pushing member is driven to move in a direction close to the first fixing member, and one end of the pushing member close to the first fixing member moves to an injection sealing point;

[0031] The pushing member is driven to move in a direction away from the first fixing member, and one end of the pushing member close to the first fixing member moves to an injection collection point, wherein the injection collection point is arranged away from the first fixing member relative to the injection sealing point.

[0032] Compared with the prior art, the embodiments of the present invention have the following advantages:

[0033] One end of the injection push rod is inserted into the injection syringe, the injection syringe is fixed on the first fixing member, and the other end of the injection push rod is fixed on the second fixing member. The bypass is removed from the dialysis machine, and the operator holds the outer surface of the holding shell, and inserts the end of the injection syringe provided with the needle into the bypass, and then starts the driving member, and the driving member drives the push member to move away from the first fixing member. The injection push rod fixed on the second fixing member will move away from the injection syringe together with the push member, so that the dialysate can be easily sucked into the injection syringe. At the same time, the leakage collection component can collect the dripping dialysate during the dialysate collection process, so that the operator can clearly understand the dripping amount of the dialysate, so that the patient's dehydration plan can be changed immediately to effectively target and reduce the patient's dehydration amount, solving the problems of sampling difficulties and long operation time during the single-handed operation of the existing dialysate sampling device, affecting the sampling efficiency of the dialysate and causing the risk of blood coagulation and inaccurate patient dehydration. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] 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 recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 Schematic diagram of the overall structure of the dialysate sampling device in the embodiment of the present application;

[0036] Figure 2 is a schematic structural diagram of the dialysate sampling device in an embodiment of the present application without the syringe;

[0037] Figure 3 is a cross-sectional view of the dialysate sampling device in an embodiment of the present application without the syringe;

[0038] Figure 4 is an exploded view of a driving housing, a driving member, and a second fixing member of a dialysate sampling device in an embodiment of the present application;

[0039] Figure 5 is an exploded view of a first fixing member of a dialysate sampling device in an embodiment of the present application;

[0040] Figure 6 is a schematic structural diagram of a leakage collection component of a dialysate sampling device in an embodiment of the present application;

[0041] Figure 7 is a schematic diagram of the structure of a syringe of a dialysate sampling device in an embodiment of the present application;

[0042] Figure 8 It is a flow chart of the dialysate sampling method in an embodiment of the present application.

[0043] Description of reference numerals:

[0044] 1. Push shell; 11. Extension piece; 111. Slide groove; 12. Accommodation piece; 121. Threaded channel; 122. Avoidance groove; 2. Holding shell; 21. Switch button; 22. Forward button; 23. Back button; 3. Push piece; 4. First fixing piece; 41. First syringe fixing part; 42. Second syringe fixing part; 43. Limit clamping piece; 5. Second fixing piece; 51. Fixed base; 52. Clamping protrusion; 53. Clamping groove; 54. Sliding block; 6. Driving piece; 7. Transmission piece; 8. Leakage collection assembly; 81. Leakage connecting piece; 811. Connecting fixing part; 812. Connecting telescopic part; 8121. Telescopic accommodation piece; 8122. Telescopic piece; 8123. Telescopic fixing piece; 82. Leakage collection piece; 9. Syringe; 91. Injection syringe; 911. Needle; 92. Injection push rod. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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.

[0046] The present application is further described in detail below in conjunction with the accompanying drawings.

[0047] The embodiments of the present application disclose a dialysate sampling device and method.

[0048] like Figure 1 , Figure 2 , Figure 3 and Figure 7As shown, a dialysate sampling device comprises a pushing shell 1, a holding shell 2, a pushing member 3, a first fixing member 4, a second fixing member 5, a driving member 6 and a transmission member 7. A first accommodating space is formed in the pushing shell 1; a second accommodating space is formed in the holding shell 2, the holding shell 2 is vertically arranged on the pushing shell 1, and the second accommodating space is communicated with the first accommodating space; the pushing member 3 is slidably arranged in the first accommodating space; the first fixing member 4 is arranged on the pushing shell 1, and the first fixing member 4 is used to fix the injection syringe 91; the second fixing member 5 is arranged at one end of the pushing member 3 close to the first fixing member 4, and the second fixing member 5 is used to fix the injection push rod 92; the driving member 6 is arranged in the second accommodating space; one end of the transmission member 7 is connected to the driving member 6, and the other end is connected to the pushing member 3; wherein the driving member 6 is used to drive the transmission member 7 to push the pushing member 3 to slide.

[0049] One end of the injection push rod 92 is inserted into the injection syringe 91, and the injection syringe 91 is fixed on the first fixing member 4, and the other end of the injection push rod 92 is fixed on the second fixing member 5. The bypass is removed from the dialysis machine, and the operator holds the outer surface of the holding shell 2, and inserts one end of the injection syringe 91 provided with the needle 911 into the bypass, and then starts the driving member 6, and the driving member 6 drives the push member 3 to move away from the first fixing member 4. The injection push rod 92 fixed on the second fixing member 5 will move away from the injection syringe 91 together with the push member 3, so that the dialysate can be easily sucked into the injection syringe 91, which solves the problems of sampling difficulty and long operation time in the existing dialysate sampling device during one-hand operation, affecting the sampling efficiency of the dialysate and causing the risk of blood coagulation and inaccurate dehydration of the patient.

[0050] like Figure 1 and Figure 3 As shown, the driving member 6 is arranged on the inner wall of the gripping shell 2; the transmission member 7 is a first worm, one end of which is arranged on the driving end of the driving member 6; the pushing member 3 is a second worm, which is meshed with the first worm.

[0051] Specifically, the overall shape of the dialysate sampling device is a pistol. The push shell 1 and the holding shell 2 are vertically arranged, and the operator can hold the holding shell 2 to operate the dialysate sampling device, which is convenient for the operator to operate.

[0052] The transmission member 7 is a first worm, the pushing member 3 is a second worm, the first worm and the second worm are meshed, and the axis of the first worm is set at an angle of 90 degrees to the axis of the second worm.

[0053] One end of the first worm is arranged at the driving end of the driving member 6, and the side surface of the other end is meshed with the side surface of the second worm.

[0054] The driving member 6 is a driving motor. When the driving member 6 is started, the driving end of the driving member 6 rotates and drives the first worm to rotate. The second worm engages with the first worm. By utilizing the characteristics of the worm transmission, the second worm also rotates and moves along the axial direction of the push housing 1.

[0055] By adjusting the rotation direction of the driving end of the driving member 6, the moving direction of the second worm can be controlled, so that the second worm drives the injection push rod 92 to move away from the injection syringe 91, thereby realizing the operation of aspirating the dialysate.

[0056] like Figure 1 , Figure 3 and Figure 4 As shown, a limit member is provided on the inner wall of the push housing 1 , a threaded channel 121 is provided on the limit member, and the second worm is threadedly connected to the threaded channel 121 .

[0057] Specifically, the shape of the limiting member is cylindrical as a whole, and the limiting member is coaxially matched with the driving shell 1. The limiting member can be connected to the driving shell 1 through a connecting rod, or can be filled in the first accommodating space and formed integrally with the driving shell 1. The connection relationship between the limiting member and the driving shell 1 is not limited here.

[0058] The threaded channel 121 is coaxially arranged on the limiting member, and the threaded channel 121 is threadedly connected to the pushing member 3 .

[0059] The setting of the limiting member can limit the pushing member 3 so that the pushing member 3 is always in a coaxial state with the pushing shell 1, thereby preventing the pushing member 3 from deviating during the movement in the pushing shell 1 and affecting the suction of the dialysate.

[0060] Furthermore, since the transmission member 7 needs to extend into the first accommodating space to engage with the pushing member 3, when the limiting member and the pushing shell 1 are connected to each other through the connecting rod, that is, when there is a gap between the limiting member and the pushing shell 1, a avoidance hole is provided on the side wall of the limiting member, and the avoidance hole is connected to the threaded channel 121. The side surface of the end of the transmission member 7 can pass through the avoidance hole into the threaded channel 121 and engage with the pushing member 3, thereby realizing the normal operation of the dialysate sampling device.

[0061] When the limiting member is filled in the first accommodating space and is formed integrally with the pushing shell 1, an avoidance channel is arranged in the limiting member, and the avoidance channel is arranged vertically to the threaded channel 121. One end of the avoidance channel is connected with the second accommodating space, and the side near the other end is connected with the threaded channel 121, so that the transmission member 7 can be extended into the avoidance channel and meshed with the pushing member 3 in the threaded channel 121, thereby realizing the normal operation of the dialysate sampling device.

[0062] like Figure 1 , Figure 2, Figure 3 and Figure 7 As shown, the pushing shell 1 includes an extension member 11 and a accommodating member 12, the first accommodating space is arranged in the accommodating member 12, and the extension member 11 is arranged on the accommodating member 12; the first fixing member 4 is arranged on the extension member 11; the second fixing member 5 is rotatably arranged on the pushing member 3, a slide groove 111 is arranged on the extension member 11, and a slider 54 is arranged on the second fixing member 5, and the slider 54 is slidably arranged on the slide groove 111.

[0063] Specifically, the receiving member 12 is disposed above the holding shell 2 , and the extending member 11 is connected to one end of the receiving member 12 .

[0064] The upper surface of the extension piece 11 is a plane, and the slide groove 111 is arranged on the upper surface of the extension piece 11. The slide groove 111 is a strip-shaped groove, and the slide groove 111 is arranged along the axial direction of the extension piece 11.

[0065] The first fixing member 4 is disposed at an end of the extending member 11 away from the accommodating member 12 , and the second fixing member 5 is disposed at an end of the pushing member 3 close to the first fixing member 4 .

[0066] The syringe 9 includes a syringe barrel 91 and a syringe push rod 92, and the syringe 9 is used to be installed between the first fixing member 4 and the second fixing member 5. The end of the fixed syringe barrel 91 away from the syringe push rod 92 is fixed to the first fixing member 4, and the end of the syringe push rod 92 away from the syringe barrel 91 is fixed to the second fixing member 5. The needle 911 on the syringe barrel 91 extends to the outside and is used to be inserted into the bypass of the dialysis machine to extract and collect the dialysate.

[0067] During operation, the pusher 3 rotates while moving along the threaded channel 121 toward or away from the first fixing member 4 because of the worm drive. Since the second fixing member 5 is rotatably arranged on the pusher 3 and the slider 54 on the second fixing member 5 is slidably arranged on the slide groove 111, the second fixing member 5 will only move toward or away from the first fixing member 4 as the pusher 3 moves, and will not rotate together with the pusher 3. The second fixing member 5 is limited, and the injection push rod 92 can move forward and backward in the injection syringe 91, helping the syringe 9 to complete the suction of the dialysate.

[0068] Further, such as Figure 1 , Figure 2 and Figure 3 As shown, a clamping groove 53 is provided on one side of the second fixing member 5 close to the first fixing member 4 , and the clamping groove 53 is used for clamping with the injection push rod 92 .

[0069] Specifically, the second fixing member 5 includes a fixing base 51 and a clamping protrusion 52 , and the slider 54 is disposed below the fixing base 51 . The side of the fixing base 51 close to the pushing member 3 can be rotatably connected to the pushing member 3 through parts such as bearings.

[0070] The snap-fitting protrusion 52 is arranged on one side of the fixed base 51 close to the first fixing member 4, and the snap-fitting groove 53 is arranged on the snap-fitting protrusion 52. Since the end of the injection push rod 92 away from the injection syringe 91 is a circular pressing piece, the snap-fitting groove 53 is shaped as a semicircular groove, which facilitates the pressing piece to be snapped into the snap-fitting groove 53.

[0071] Furthermore, in order to enhance the stability of the cooperation between the second fixing member 5 and the slide groove 111, the slider 54 is configured as a dovetail tenon, and the slide groove 111 is configured as a dovetail groove.

[0072] Furthermore, in order to facilitate suction of the syringe 9 , the length of the extension piece 11 is at least greater than or equal to the length of the injection syringe 91 plus the injection push rod 92 ; the length of the threaded channel 121 is greater than or equal to the length of the injection push rod 92 .

[0073] At this time, even if the injection push rod 92 is moved to the end of the injection syringe 91 away from the first fixing member 4 , the second fixing member 5 and the injection syringe 91 will not enter the threaded channel 121 .

[0074] Alternatively, the length of the extension piece 11 is greater than or equal to the length of the injection syringe 91 , and is less than the length of the injection syringe 91 plus the injection push rod 92 ; the length of the threaded channel 121 is greater than or equal to the length of the injection push rod 92 .

[0075] At this time, the slide groove 111 extends into the accommodating member 12, and a avoiding groove 122 is provided on the accommodating member 12. The avoiding groove 122 connects the threaded channel 121 and the slide groove 111, and the avoiding groove 122 is used to avoid the slider 54, so as to facilitate the passage of the slider 54. The aperture of the threaded channel 121 is greater than or equal to the maximum cross-sectional diameter of the second fixing member 5 and the pressing sheet, so that the second fixing member 5 and the pressing sheet can enter the threaded channel 121.

[0076] like Figure 1 , Figure 5 and Figure 7 As shown, the first fixing member 4 includes a first syringe fixing portion 41 and a second syringe fixing portion 42. The first syringe fixing portion 41 is arranged on the extension member 11. The first syringe fixing portion 41 and the second syringe fixing portion 42 are detachably connected. The first syringe fixing portion 41 and the second syringe fixing portion 42 are used to clamp the injection syringe 91 in the middle.

[0077] Specifically, the shapes of the first syringe fixing part 41 and the second syringe fixing part 42 are both Ω-shaped, and the flat edges of the first syringe fixing part 41 and the flat edges of the second syringe fixing part 42 are correspondingly arranged.

[0078] The first fixing member 4 also includes a limiting clamping member 43, on which a limiting clamping hole is provided. The limiting clamping hole is rectangular in shape, and the flat edges on the same side of the first syringe fixing portion 41 and the second syringe fixing portion 42 can both extend into the limiting clamping member.

[0079] After the first syringe fixing part 41 and the second syringe fixing part 42 clamp the injection syringe 91 in the middle, the limiting clamping piece 43 is inserted, and the upper wall of the limiting clamping hole can abut against the upper surface of the flat edge of the second syringe fixing part 42, and the lower wall of the limiting clamping hole can abut against the lower surface of the first syringe fixing part 41. There are two limiting clamping pieces 43, and the two limiting clamping pieces 43 are respectively fixed on the flat edges on both sides of the first syringe fixing part 41 and the second syringe fixing part 42, so that the injection syringe 91 can be firmly clamped between the first syringe fixing part 41 and the second syringe fixing part 42, and at the same time, relative shaking between the first syringe fixing part 41 and the second syringe fixing part 42 can be prevented, thereby increasing the stability of the first fixing part 4 in fixing the injection syringe 91, and the limiting clamping part 43 only needs to be inserted into the flat edges on both sides of the first syringe fixing part 41 and the second syringe fixing part 42 through the limiting clamping hole to complete the fixation of the injection syringe 91 on the first fixing part 4. The operation is convenient and fast, and the quick disassembly and quick installation of the injection syringe 91 can be realized, which is convenient for the operator to quickly replace and install the new injection syringe 91 for sampling the next dialysis machine.

[0080] A first arc groove and a second arc groove are respectively provided at the middle positions of the first syringe fixing part 41 and the second syringe fixing part 42 . The first arc groove is coaxially arranged with the threaded channel 121 , and the first arc groove is concentrically arranged with the second arc groove.

[0081] When installing the syringe 9, first insert the pressing piece on the injection push rod 92 into the clamping groove 53. At this time, the injection syringe 91 can abut against the first arc groove. Then, place the second syringe fixing part 42 above the first syringe fixing part 41. The second arc groove abuts against the injection syringe 91. Then, the two limiting clamping parts 43 are respectively placed on the flat edges on both sides of the first syringe fixing part 41 and the second syringe fixing part 42 to fix the injection syringe 91 between the first syringe fixing part 41 and the second syringe fixing part 42. The syringe 9 is installed by fixing the injection syringe 91 and the injection push rod 92 by the first fixing part 4 and the second fixing part 5 respectively.

[0082] like Figure 1 and Figure 3As shown, the dialysate sampling device includes a central control unit and a power supply unit, both of which are arranged in the second accommodating space, and the power supply unit and the driving unit 6 are electrically connected to the central control unit; a switch button 21 is arranged on the central control unit, and the switch button 21 is used to control the start or shut down of the central control unit.

[0083] Specifically, the power supply unit is a rechargeable battery, and a charging port is provided on the bottom wall of the grip shell 2 so that an external power source can charge the power supply unit through the charging port.

[0084] The switch button 21 is arranged on one side of the holding shell 2 so that when the operator uses the dialysate sampling device, the operator can easily press the switch button 21 to start or close the control.

[0085] like Figure 1 , Figure 3 and Figure 7 As shown, a forward button 22 and a backward button 23 are provided on the central control. The forward button 22 is used to control the pushing member 3 to move in a direction close to the first fixing member 4, and the backward button 23 is used to control the pushing member 3 to move in a direction away from the first fixing member 4.

[0086] Specifically, the forward button 22 and the backward button 23 are both arranged on the side of the hand holding the housing 2. Pressing the forward button 22 or the backward button 23 respectively can control the driving member 6 to rotate forward or reversely, thereby controlling the pushing member 3 to move closer to or away from the first fixing member 4.

[0087] If the forward button 22 is pressed, the driving end of the driving member 6 rotates in the positive direction, and the pushing member 3 moves toward the first fixing member 4 through the worm gear transmission between the transmission member 7 and the pushing member 3 .

[0088] When the back button 23 is pressed, the driving end of the driving member 6 rotates, and through the worm transmission between the transmission member 7 and the pushing member 3, the pushing member 3 moves away from the first fixing member 4.

[0089] When the operator uses the dialysate sampling device to work, he first installs the syringe 9 on the dialysate sampling device, and then presses the switch button 21 to start the central control.

[0090] First, press the forward button 22 to move the push member 3 towards the first fixing member 4 to push the end of the injection push rod 92 close to the first fixing member 4 to abut against the injection syringe 91, then insert the needle 911 on the injection syringe 91 into the bypass, and then press the backward button 23 to move the push member 3 away from the first fixing member 4 to aspirate the dialysate until the required volume is aspirated.

[0091] like Figure 1 , Figure 6 and Figure 7As shown, the dialysate sampling device further comprises a leakage collection assembly 8, which is disposed at one end of the extension member 11 away from the receiving member 12, and is used for collecting leaking dialysate.

[0092] Specifically, when the syringe 9 is used to sample the dialysate from the bypass, dialysate will often drip from the bypass or the injection needle 911 during the collection process. The amount of the dripped dialysate means how much more water will leak out of the patient's body. The leakage collection component 8 is first set to collect the dripped dialysate during the dialysate collection process, so that the operator can clearly understand the dripping amount of the dialysate, and can immediately change the patient's dehydration plan to effectively target and reduce the patient's dehydration.

[0093] The leakage liquid collection assembly 8 comprises a leakage liquid connection piece 81 and a leakage liquid collection piece 82 , and the leakage liquid connection piece 81 is arranged at the bottom of the extension part.

[0094] The shape of the leakage connecting piece 81 is L-shaped, and the leakage connecting piece 81 includes a connecting and fixing part 811 and a connecting and telescopic part 812. The connecting and fixing part 811 and the connecting and telescopic part 812 are vertically arranged, one end of the connecting and fixing part 811 is arranged at the bottom of the extension part, and the other end is connected to one end of the connecting and telescopic part 812.

[0095] The connecting telescopic portion 812 is arranged in parallel with the extending portion. The connecting telescopic portion 812 can be telescoped. The other end of the connecting telescopic portion 812 is used to extend to the bottom of the injection needle 911.

[0096] The leakage collection piece 82 is arranged at the other end of the connecting telescopic part 812. The length of the connecting telescopic part 812 is adjusted so that the leakage collection piece 82 is located below the injection needle 911 to facilitate the collection of leakage from the bypass or the injection needle 911 during the process of extracting dialysate.

[0097] The setting of the connecting and fixing part 811 can ensure that there is a certain distance between the leakage collection piece 82 and the injection needle 911, so as to facilitate the insertion of the injection needle 911 into the bypass for suction.

[0098] The arrangement of the connecting telescopic portion 812 can adjust the position of the leakage collecting piece 82 to ensure that the leakage collecting piece 82 is located below the injection needle 911 .

[0099] The structure of the connecting telescopic part 812 is not limited here, as long as the telescopic effect can be achieved, for example, the connecting telescopic part 812 includes a telescopic accommodating member 8121, a telescopic member 8122 and a telescopic fixing member 8123. One end of the telescopic accommodating member 8121 is arranged on the connecting fixing part 811, and the other end is provided with a telescopic hole, one end of the telescopic member 8122 extends into the telescopic hole, the telescopic member 8122 is slidably connected to the telescopic accommodating member 8121, and the leakage collecting member 82 is arranged at the other end of the telescopic member 8122.

[0100] A telescopic fixing hole is provided on the side wall of the telescopic accommodating member 8121 , the telescopic fixing hole is communicated with the telescopic hole, the telescopic fixing member 8123 is screwed with the telescopic fixing hole, and the telescopic fixing member 8123 abuts against the telescopic member 8122 .

[0101] One end of the leakage collection member 82 is arranged at the bottom of the extension portion, and the other end is used to extend to the bottom of the injection needle 911 .

[0102] The leakage collecting piece 82 may be in the shape of a measuring cup or a funnel. The leakage collecting piece 82 is made of a transparent material and is provided with scales so that the operator can understand the volume of the leakage collected by the leakage collecting piece 82 .

[0103] The setting of the leakage collection component 8 can accurately record the volume of dialysate leaked from the bypass or the injection needle 911 during each dialysate sampling process.

[0104] like Figure 8 As shown, a dialysate sampling method is applied to any dialysate sampling device as described above, and the method comprises:

[0105] S100, driving the pushing member 3 to move in a direction close to the first fixing member 4, and the end of the pushing member 3 close to the first fixing member 4 moves to the injection sealing point.

[0106] Specifically, when the operator uses the dialysate sampling device to work, he first installs the syringe 9 on the dialysate sampling device, and then presses the switch button 21 to start the central control.

[0107] Then, the forward button 22 is pressed to move the pushing member 3 toward the first fixing member 4, and the end of the first fixing member 4 close to the first fixing member 4 moves to the first preset position. At this time, the end of the injection push rod 92 close to the first fixing member 4 can abut against the injection syringe 91 to ensure the airtightness of the injection syringe 91.

[0108] S200, driving the pushing member 3 to move away from the first fixing member 4, and the end of the pushing member 3 close to the first fixing member 4 moves to the injection collection point, wherein the injection collection point is arranged away from the first fixing member 4 relative to the injection sealing point.

[0109] Specifically, pressing the back button 23 causes the pushing member 3 to move away from the first fixing member 4, and causes the end of the first fixing member 4 close to the first fixing member 4 to move to the second preset position to draw the dialysate from the bypass to the required volume, wherein the second preset position is the position to which the end of the pushing member 3 close to the first fixing member 4 can move after the injection syringe 91 draws to the actual volume during the actual working process.

[0110] In summary, a dialysate sampling device comprises a pushing shell 1, a holding shell 2, a pushing member 3, a first fixing member 4, a second fixing member 5, a driving member 6 and a transmission member 7. A first accommodating space is formed in the pushing shell 1; a second accommodating space is formed in the holding shell 2, the holding shell 2 is vertically arranged on the pushing shell 1, and the second accommodating space is communicated with the first accommodating space; the pushing member 3 is slidably arranged in the first accommodating space; the first fixing member 4 is arranged on the pushing shell 1, and the first fixing member 4 is used to fix the injection syringe 91; the second fixing member 5 is arranged at one end of the pushing member 3 close to the first fixing member 4, and the second fixing member 5 is used to fix the injection push rod 92; the driving member 6 is arranged in the second accommodating space; one end of the transmission member 7 is connected to the driving member 6, and the other end is connected to the pushing member 3; wherein the driving member 6 is used to drive the transmission member 7 to push the pushing member 3 to slide.

[0111] One end of the injection push rod 92 is inserted into the injection syringe 91, and the injection syringe 91 is fixed on the first fixing member 4, and the other end of the injection push rod 92 is fixed on the second fixing member 5. The bypass is removed from the dialysis machine, and the operator holds the outer surface of the holding shell 2, and inserts one end of the injection syringe 91 provided with the needle 911 into the bypass, and then starts the driving member 6, and the driving member 6 drives the push member 3 to move away from the first fixing member 4. The injection push rod 92 fixed on the second fixing member 5 will move away from the injection syringe 91 together with the push member 3, so that the dialysate can be easily sucked into the injection syringe 91, which solves the problems of sampling difficulty and long operation time in the existing dialysate sampling device during one-hand operation, affecting the sampling efficiency of the dialysate and causing the risk of blood coagulation and inaccurate dehydration of the patient.

[0112] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0113] It should be noted that the present invention takes a dialysate sampling device and method as an example to introduce the specific structure and working principle of the present invention, but the application of the present invention is not limited to a dialysate sampling device and method, and can also be applied to the production and use of other similar workpieces.

[0114] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0115] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A dialysate sampling device, characterized in that: include: The outer shell is pushed to form a first accommodation space; A gripping shell having a second accommodating space formed therein, the gripping shell being vertically arranged on the pushing shell, and the second accommodating space being communicated with the first accommodating space; A pushing member, slidably disposed in the first accommodation space; A first fixing member, disposed on the pushing housing, and used to fix the injection syringe; A second fixing member, disposed at one end of the pushing member close to the first fixing member, the second fixing member being used to fix the injection push rod; A driving member, disposed in the second accommodation space; A transmission member, one end of which is connected to the driving member, and the other end of which is connected to the pushing member; A leakage collection component, disposed on the push housing, and used for collecting the leaked dialysate; Wherein, the driving member is used to drive the transmission member to push the pushing member to slide.

2. The dialysate sampling device according to claim 1, characterized in that: The driving member is arranged on the inner wall of the holding shell; The transmission member is a first worm, one end of which is arranged at the driving end of the driving member; The pushing member is a second worm gear, and the second worm gear is meshed with the first worm gear.

3. The dialysate sampling device according to claim 2, characterized in that: A limiting member is arranged on the inner wall of the pushing shell, a threaded channel is arranged on the limiting member, and the second worm is threadedly connected to the threaded channel.

4. The dialysate sampling device according to claim 3, characterized in that: The push housing comprises an extension piece and a receiving piece, the first receiving space is arranged in the receiving piece, and the extension piece is arranged on the receiving piece; The first fixing member is arranged on the extending member; The second fixing member is rotatably arranged on the pushing member, the extending member is provided with a slide groove, the second fixing member is provided with a slider, and the slider is slidably arranged on the slide groove; The leakage liquid collection component is arranged at an end of the extension member away from the receiving member.

5. The dialysate sampling device according to claim 4, characterized in that: A clamping groove is provided on one side of the second fixing member close to the first fixing member, and the clamping groove is used for clamping with the injection push rod.

6. The dialysate sampling device according to claim 4, characterized in that: The first fixing member includes a first syringe fixing portion and a second syringe fixing portion, the first syringe fixing portion is arranged on the extension member, the first syringe fixing portion and the second syringe fixing portion are detachably connected, and the first syringe fixing portion and the second syringe fixing portion are used to clamp the injection syringe in the middle.

7. The dialysate sampling device according to claim 1, characterized in that: The dialysate sampling device comprises a central control unit and a power supply unit, wherein the central control unit and the power supply unit are both arranged in the second accommodation space, and the power supply unit and the driving unit are both electrically connected to the central control unit; The middle control is provided with a switch button, and the switch button is used to control the start or close of the middle control.

8. The dialysate sampling device according to claim 7, characterized in that: A forward button and a backward button are provided on the middle control, the forward button is used to control the pushing member to move in a direction close to the first fixing member, and the backward button is used to control the pushing member to move in a direction away from the first fixing member.

9. A dialysate sampling method, characterized in that: Applied to the dialysate sampling device according to any one of claims 1 to 8, the method comprises: The pushing member is driven to move in a direction close to the first fixing member, and one end of the pushing member close to the first fixing member moves to an injection sealing point; The pushing member is driven to move in a direction away from the first fixing member, and one end of the pushing member close to the first fixing member moves to an injection collection point, wherein the injection collection point is arranged away from the first fixing member relative to the injection sealing point.

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