Medical tube and needle separating device

Abstract

The utility model relates to a medical tube and needle separating device which comprises a tube and needle separating table arranged in a shell. The hose collecting chamber is arranged in the shell and is positioned below the tube and needle separating table; the needle head recycling channel is arranged in the shell, is positioned on one side of the tube needle and is far away from the hose collecting chamber from the table; the hose pressing device is arranged above the tube and needle separating table; the needle head pressing device is arranged above the needle head recovery channel; the hose cutter is arranged above the hose and needle separating table and is positioned between the hose compactor and the needle head pressing device; the limiting plate is arranged in the shell and used for limiting the horizontal moving position of the medical tube needle. The tube needle separating device solves the technical problems that an existing tube needle separating device cannot accurately separate a tube needle and automatically recycle a hose, and a cutting edge of a cutting knife is prone to being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a medical tube and needle separation device. Background Technique

[0002] In hospital clinical work, disposable arteriovenous puncture needles usually need to separate the medical silicone hose part from the sharp part and discard them separately in medical garbage bags and sharps containers to avoid being stabbed by sharp objects and causing infection when recycling garbage. For example: in the infusion tube for intravenous drip, there is a plastic needle for piercing the rubber cap of the infusion bottle, and when discarding, it is necessary to cut the infusion tube to separate the plastic needle from the infusion tube; in hemodialysis treatment, it is also necessary to cut and separate the puncture needle on the blood circuit tube from the pipeline, etc.

[0003] In the prior art, operators usually use scissors to cut and separate the infusion tube and the puncture needle. This operation method not only causes the liquid in the pipeline to splash into the surrounding environment due to the stress generated by shearing, resulting in pollution, but also increases the risk of cross-infection caused by repeated touching of the scissors handle.

[0004] To solve the problems in the prior art that when operators use scissors to cut and separate the infusion tube and the puncture needle, the liquid in the pipeline is easily splashed into the surrounding environment due to the stress generated by shearing, resulting in pollution, and touching is likely to cause cross-infection, Chinese Patent CN117244135A discloses Figure 1 a tube and needle separation device as shown.

[0005] Figure 1 The tube and needle separation device shown is provided with a cutting channel 610, a first cavity 640 and a second cavity 650. The cutting channel 610 is arranged between the first cavity 640 and the second cavity 650. A first cutting member 641 and a second cutting member 651 are respectively arranged in the first cavity 640 and the second cavity 650. The first cutting member 641 moves towards the second cutting member 651, and the first cutting member 641 and the second cutting member 651 are used to cut the tube and needle 60 in the cutting channel 610.

[0006] When separating the tube and needle, medical staff hold the medical hose and reserve a section of pipeline to ensure that the tube-holding part is outside the entrance of the cutting channel 610. Insert the medical silicone pipeline with the needle from the entrance of the cutting channel 610 into the cutting channel 610, and make the overall height of the needle below the horizontal plane of the first cutting knife 641 and the second cutting knife 651. Then issue a working instruction to the external control switch to make the first cutting knife 641 cut the pipeline, so that the two cutting edges of the first cutting knife 641 and the second cutting knife 651 are in the position of closing the seam, thereby completing the cutting and realizing the separation of the tube and needle 60. The needle part will naturally fall through the inside of the slideway groove and fall into the feeding port of the sharps container through the bottom opening to realize the recycling of sharps.

[0007] The tube needle separation device has the following deficiencies: First, the separated flexible tube cannot be automatically recycled; 2) it is very difficult for medical staff to control the position of the needle, and it is impossible to accurately separate the needle from the flexible tube. For example, the needle is separated into two sections and each part is cut; 3) when the cutting edges of the first cutting knife 641 and the second cutting knife 651 are in the position of closing the seam, it is easy to cause damage to the cutting edges of the knives. Summary of the Invention

[0008] The purpose of the present utility model is to provide a medical tube needle separation device that can solve the above technical problems.

[0009] A medical tube needle separation device of the present utility model includes:

[0010] A tube needle separation table arranged in the housing;

[0011] A flexible tube collection chamber arranged in the housing and located below the tube needle separation table;

[0012] A needle recovery channel arranged in the housing, located on one side of the tube needle separation table and far from the flexible tube collection chamber;

[0013] A flexible tube presser arranged above the tube needle separation table;

[0014] A needle down-presser arranged above the needle recovery channel;

[0015] A flexible tube cutter arranged above the tube needle separation table and between the flexible tube presser and the needle down-presser; and

[0016] A limit plate arranged in the housing for limiting the horizontal movement position of the medical tube needle.

[0017] In the first embodiment, the housing includes a bottom plate, two parallel side plates with upper steps installed on the bottom plate, and a second side plate and a first side plate perpendicular to the side plates.

[0018] Preferably, the needle recovery channel includes a first partition plate connecting the two side plates and the limit plate.

[0019] Preferably, the flexible tube collection chamber includes a second partition plate connecting the two side plates and the second side plate.

[0020] Preferably, the tube needle separation table is respectively supported by the second partition plate and the first partition plate.

[0021] Preferably, the present utility model further includes a placement space for a needle collection box arranged below the needle recovery channel.

[0022] Preferably, the hose tightener and the needle depressor both comprise an electric push rod having a telescopic rod and a pressing sheet fixed on the telescopic rod.

[0023] Preferably, the hose cutter comprises an electric push rod having a telescopic rod and a cutting knife mounted on the telescopic rod.

[0024] Preferably, the tube-needle separation platform is provided with a button switch, a tube-needle guide groove and a knife groove facing the hose cutter.

[0025] Preferably, the power supply is electrically connected to the hose tightener via a button switch.

[0026] Preferably, the power supply is electrically connected to the needle depressor via a button switch and a first delay switch circuit.

[0027] Preferably, the power supply is electrically connected to the hose cutter via a button switch and a second delay switch circuit.

[0028] Preferably, the first delay switch circuit and the second delay switch circuit are RC delay switch circuits, and the delay constant R1×C1 of the first delay switch circuit is smaller than the delay constant R2×C2 of the second delay switch circuit.

[0029] Preferably, an upper cover plate is fixed to the upper end of the upper step of the side plate, and the needle depressor, the hose tightener and the hose cutter are respectively fixed to the lower end of the upper cover plate.

[0030] Preferably, the upper end of the limit plate is fixedly connected to the upper cover plate, and the two sides are respectively connected to two side plates.

[0031] In the second and third embodiments, the housing includes a bottom plate, two parallel side plates with upper steps mounted on the bottom plate, and a limit plate and a second side plate perpendicular to the side plates.

[0032] Preferably, the tube-needle separation platform is fixed to the two side plates, for example, by screws.

[0033] Preferably, the hose collecting chamber comprises a first partition plate and a second side plate respectively connected to the two side plates.

[0034] The utility model has the following technical effects: 1) the needle and the hose of the tube needle can be accurately separated, so as to avoid the separated hose with a broken needle; 2) the separated hose can be recovered into the hose collection chamber; 3) the cutting edge can be prevented from being damaged; 4) the probability of needle stabbing medical staff is reduced.

[0035] The utility model is described in detail below with reference to the accompanying drawings. Brief Description of the Figures

[0036] Figure 1 It is a schematic diagram of an existing tube needle separation device;

[0037] Figures 2a - 2c They are respectively the front view, top view and left view of the tube needle separation device of the present utility model;

[0038] Figure 3 It is a schematic structural diagram of the first embodiment of the tube needle separation device of the present utility model;

[0039] Figure 4 It is a schematic diagram of a preferred embodiment of the tube needle separation plate of the tube needle separation device of the present utility model;

[0040] Figure 5 It is a schematic diagram of the hose compressor of the tube needle separation device of the present utility model;

[0041] Figure 6 It is a schematic diagram of the hose cutter of the tube needle separation device of the present utility model;

[0042] Figure 7 It is a schematic diagram of placing the tube needle to be separated on the tube needle separation device of the present utility model;

[0043] Figures 8a - 8d They are respectively schematic diagrams of the tube needle separation device separating the tube needle;

[0044] Figure 9 It is a schematic structural diagram of the second embodiment of the tube needle separation device of the present utility model;

[0045] Figure 10 It is a schematic structural diagram of the third embodiment of the tube needle separation device of the present utility model;

[0046] Figure 11 It is a circuit diagram of the power supply of the hose compressor, needle head presser and hose cutter of the present utility model;

[0047] Figure 12 It is a schematic principle structure diagram of an embodiment of the driving body and telescopic rod that can be adopted by the hose compressor, needle head presser and hose cutter of the present utility model;

[0048] Figure 13 It is for the hose compressor, needle head presser and hose cutter to adopt Figure 12 The circuit diagram of the driving body and telescopic rod shown.

[0049] Description of reference numerals: housing 100; first side plate 101; side plate 102; upper step or protrusion 1201; second side plate 103; bottom plate 104; upper cover plate 201; baffle 202; cannula separation table 203; push button switch 204; limit plate 205; first partition 206; second partition 207; needle recovery channel 208; hose collection chamber 209; needle presser 210; hose cutter 211; hose compressor 212; placement space 213; needle collection box 300; cannula 400; needle 401; hose 402; first delay circuit 501; second delay circuit 502; coil holder 601; coil 602; end cap 603; tension spring 604, iron core 605. Detailed implementation

[0050] As Figures 2a - 2c and Figure 3 As shown, a medical cannula separation device of the present utility model includes: a cannula separation table 203 provided in the housing 100; a hose collection chamber 209 provided in the housing 100 and located below the cannula separation table 203; a needle recovery channel 208 provided in the housing 100 and located on one side of the cannula separation table 203; a hose compressor 212 provided above the cannula separation table 203; a needle presser 210 provided above the needle recovery channel 208; a hose cutter 211 provided above the cannula separation table 203 and between the hose compressor 212 and the needle presser 210; and a limit plate 205 provided in the housing 100 for defining the horizontal movement position of the medical cannula.

[0051] As Figure 7 As shown, when separating the cannula, place the cannula 400 on the cannula separation table 203, make the needle 401 abut against the limit plate 205, and place the hose 402 into the hose collection chamber 209. The hose compressor 212 presses the hose 402 against the cannula separation table 203, and the needle presser 210 presses down the needle 401, thereby positioning the cannula 400 on the cannula separation table 203. Then, the hose cutter 211 cuts the hose 402 of the cannula 400 positioned on the cannula separation table 203, separating the hose 402 and the needle 401 of the cannula 400. After separation, the needle 401 falls along the needle recovery channel 208, and then the hose compressor 212 resets, causing the hose 402 to fall back into the hose collection chamber 209 by gravity.

[0052] The utility model limits the needle 401 by the limit plate 205, positions the hose 402 on the tube-needle separation table 203 by the hose compressor 212 and the needle lower press 210, and can ensure that the hose cutter 211 between the hose compressor 212 and the needle lower press 210 cuts the hose 402 without cutting the needle 401, avoiding the separated hose with a defective needle. The hose collection chamber 209 near the tube-needle separation table 203 can recover the separated hose by the gravity of the hose. In addition, the utility model cuts the hose from one direction by the hose cutter 211, thus avoiding the damage of the cutting edge of the cutter.

[0053] As Figures 2a - 2c shown, the housing 100 includes a bottom plate 104, two side plates 102 arranged in parallel and provided with upper steps or protrusions 1201 mounted on the bottom plate 104, and a second side plate 103 and a first side plate 101 perpendicular to the side plates 102. The needle recovery channel 208 includes a first partition plate 206 and a limit plate 205 respectively connecting the two side plates 102; that is, the needle recovery channel 208 is surrounded by the first partition plate 206 and the limit plate 205 respectively connecting the two side plates 102. The hose collection chamber 209 includes a second partition plate 207 and a second side plate 103 respectively connecting the two side plates 102; that is, the hose collection chamber 209 is surrounded by the second partition plate 207 and the second side plate 103 respectively connecting the two side plates 102. The tube-needle separation table 203 is respectively supported by the second partition plate 207 and the first partition plate 206.

[0054] The utility model further includes a placement space 213 for the needle collection box 300 arranged below the needle recovery channel 208. After the needles in the needle collection box 300 are full, the needle collection box 300 can be removed from the placement space 213. The needle collection box 300 is preferably a closable needle containing box so as to transport the recovered needles to a designated place for destruction in a closed environment.

[0055] Figure 4 Shows a preferred embodiment of the tube-needle separation table 203, provided with a push button switch 204 for operating the hose compressor 212, the needle lower press 210 and the hose cutter 211, a tube-needle guiding groove 2031 for guiding the tube-needle to move forward, and a cutter groove 2031 facing the hose cutter 211.

[0056] Figure 5The structure of the hose compressor 212 is shown. The hose compressor 212 includes a pushing device having a telescopic rod 2122 and a pushing body 2121, such as a hydraulic pushing device, a pneumatic pushing device or an electric push rod, and a pressing piece 2123 fixed on the telescopic rod 2122. The present utility model preferably selects a commercially available electric push rod having a forward extension control end and a retraction control end as the pushing device; the electric push rod generally includes a motor, a gear or a worm and worm gear, and a pair of lead screw nuts, which converts the rotational motion of the motor into a linear motion and uses the forward and reverse rotation of the motor to complete the action of the telescopic rod. The electric push rod is a mature prior art and is not the inventive content of the present utility model, so the description is omitted. The needle presser 210 has the same structure as that of the hose compressor 212, and also includes a pushing device having a telescopic rod and a pushing body and a pressing piece fixed on the telescopic rod.

[0057] Figure 6 The structure of the hose cutter 2 is shown. The hose cutter 211 includes a pushing device having a telescopic rod 2112 and a pushing body 2111, such as a hydraulic pushing device, a pneumatic pushing device or an electric push rod, and a cutting knife 2113 installed on the telescopic rod 2112. The present utility model selects a commercially available electric push rod 2111 having a forward extension control end and a retraction control end as the pushing device.

[0058] Figure 11 The circuit structure for controlling the hose compressor 212, the needle presser 210 and the hose cutter 211 of the present utility model is shown. The power supply is electrically connected to the hose compressor 212 via the push button switch 204, that is, the power supply supplies power to the hose compressor 212 via the push button switch 204. The power supply is electrically connected to the needle presser 210 via the push button switch 204 and the first delay switch circuit 501, that is, the power supply supplies power to the needle presser 210 via the push button switch 204 and the first delay switch circuit 501. The power supply is electrically connected to the hose cutter 211 via the push button switch 204 and the second delay switch circuit 502, that is, the power supply supplies power to the hose cutter 211 via the push button switch 204 and the second delay switch circuit 502.

[0059] The first delay switch circuit 501 and the second delay switch circuit 502 can be implemented by various existing delay switch circuits, such as using a timing circuit, a timer, and a 555 circuit. Figure 11 The shown RC delay switch circuit only provides one implementation. Among them, the first delay switch circuit 501 is composed of a switching transistor Q1, a resistor R1, a capacitor C1 and a freewheeling diode D1; the second delay switch circuit 502 is composed of a switching transistor Q2, a resistor R2, a capacitor C2 and a freewheeling diode D2.

[0060] The delay time of the first delay switch circuit 501 is less than that of the second delay switch circuit 502. Specifically, the time constant R1×C1 of the first delay switch circuit 501 is less than the time constant R2×C2 of the second delay switch circuit 502. In this way, when the push button switch 204 is pressed, the tube needle can be pressed against the tube needle separation table 203 in the order that the hose compressor 212 and the needle presser 210 work successively, and then the hose cutter 211 cuts the hose of the tube needle that has been pressed on the tube needle separation table 203 to separate the tube needle.

[0061] Figure 11 The working principle of the shown circuit is that when the power switch K is closed, the positive pole Ecc of the power supply is connected to the retraction control ends of the hose compressor 212, the needle presser 210 and the hose cutter 211 respectively through the push button switch 204, so that the telescopic rods of the hose compressor 212, the needle presser 210 and the hose cutter 211 retract and reset. When the tube needle 400 is placed on the tube needle separation table 203 with its needle 401 against the limit plate 205, press the push button switch 204 downward, the positive pole Ecc of the power supply is connected to the extension control end of the hose compressor 212, and is connected to the extension control ends of the needle presser 210 and the hose cutter 211 respectively through the first delay circuit 501 and the second delay circuit 502, so that the telescopic rod of the hose compressor 212 immediately presses down the hose 402 of the tube needle 400, the needle 401 is pressed down to the needle recovery channel 209 by the needle presser 210 after the first delay time, and the hose cutter 211 cuts the hose 402 of the tube needle after the second delay time.

[0062] Figure 12 An embodiment of the driving body and the telescopic rod of the hose compressor 212, the needle presser 210 and the hose cutter 211 that can be adopted by the present utility model is shown. The driving body includes a coil bobbin 601, a coil 602 wound around the coil bobbin, an end cover 603 fixed at one end of the coil bobbin, and a tension spring 604 installed inside the coil bobbin; the telescopic rod is an iron core 605 that can extend from the other end of the coil bobbin 601, and the tension spring 604 is connected between the end cover 603 and the iron core 605. When the coil 602 wound around the coil bobbin is energized (i.e., Figure 13 when the push button switch 204 in Figure 12 is pressed), the coil bobbin generates a magnetic field that makes the iron core 605 extend, and the iron core 605 extends outward (as shown in Figure 13 ), and the tension spring 604 generates a pulling force. When the coil is de-energized (i.e., when the push button switch 204 in Figure 13 is reset), the tension spring 604 makes the iron core 605 reset by the pulling force (not shown in the figure).

[0063] The upper end of the upper step 1201 of the side plate 102 is fixed with an upper cover plate 201. The lower end of the upper cover plate 201 is respectively fixed with a needle lower presser 210, a hose compressor 212 and a hose cutter 211. The upper end of the limit plate 205 is fixedly connected to the upper cover plate 201, and the two sides are respectively connected to the two side plates 102.

[0064] In addition, the utility model further provides a baffle 202 at one end of the upper cover plate above the tube needle separation table 203, which is used to prevent the needle lower presser 210, the hose cutter 211 and the hose compressor 212 from hurting the human body. The baffle 202 is respectively connected to the side plate 102 and the upper cover plate 201.

[0065] Figure 9 Shows the second embodiment of the utility model. The difference between the second embodiment and Figure 3 the first embodiment shown is that the housing 100 includes a bottom plate 104, two side plates 102 with upper steps 1201 arranged in parallel on the bottom plate 104, and a first partition plate 206 and a second side plate 103 perpendicular to the side plates 102; that is, the first side plate 101 is cancelled, and the limit plate 205 acts as the first side plate.

[0066] Figure 10 Shows the third embodiment of the utility model. The difference between the third embodiment and Figure 3 the first embodiment shown is that the housing 100 includes a bottom plate 104, two side plates 102 with upper steps 1201 arranged in parallel on the bottom plate 104, and a first partition plate 206 and a second side plate 103 perpendicular to the side plates 102; that is, the first side plate 101 is cancelled, and the limit plate 205 acts as the first side plate. At the same time, the second partition plate 207 is also cancelled, so that the hose collection chamber 209 includes a first partition plate 206 and a second side plate 103 respectively connected to the two side plates 102; that is, the hose collection chamber 209 is surrounded by the first partition plate 206 and the second side plate 103 respectively connected to the two side plates 102, so as to increase the space of the hose collection chamber 209 for accommodating the separated hose 402. In the third embodiment, the tube needle separation table 203 is fixed on the two side plates 102, for example, fixed on the two side plates 102 by screws.

[0067] Figures 8a - 8b Shows the whole process of separating the tube needle of the utility model.

[0068] After the power switch K is turned on, the telescopic rods of the needle lower presser 210, the hose cutter 211 and the hose compressor 212 retract and reset; the medical staff places the tube needle 400 on the tube needle separation table 203 and moves the tube needle 400 forward until the needle 401 abuts against the limit plate 205, and then the medical staff presses the button switch 204 downward, so that the telescopic rod of the hose compressor 212 extends downward until it compresses the hose 402 of the tube needle 400, as Figure 8a shown.

[0069] After the first delay time has elapsed, the telescopic rod of the needle lower presser 210 extends downward, pressing the needle of the tube needle 400 down to the entrance of the needle recovery channel 208, as Figure 8b shown.

[0070] After a second delay time greater than the first delay time has elapsed, the cutting blade 2113 on the hose cutter 211 moves downward until the tube needle 400 is divided into a needle 401 and a hose 402, as Figure 8c shown.

[0071] The medical staff releases the push button switch 204, and the telescopic rods of the needle lower presser 210, the hose cutter 211, and the hose presser 212 retract and reset. The needle 401 falls into the needle collection box 300 through the needle recovery channel 208, and the hose 402 falls into the hose collection chamber 209 by its own gravity, as Figure 8d shown.

[0072] In addition, the push button switch 204 is preferably a switch with a delayable contact switch. In this way, when the medical staff releases the push button switch 204, the push button switch 204 supplies power to the reset ends of the needle lower presser 210, the hose cutter 211, and the hose presser 212 after a period of time, giving the medical staff sufficient time to move away from the hose 402.

[0073] The main features of the present invention are that the tube needle separation table 203 is used to place the tube needle 400 to be separated, the position of the tube needle placed on the tube needle separation table 203 is limited by the limit plate 205, the hose 402 of the tube needle is pressed by the hose presser 212, the needle is pressed down to the entrance of the needle recovery channel 208 by the needle lower presser 210, and then the tube needle 400 is divided by the hose cutter 211, so that the needle 401 falls into the needle collection box 300 through the needle recovery channel 208, and the hose 402 falls into the hose collection chamber 209 by its own gravity.

[0074] In order to facilitate the placement of the tube needle 400 to be separated, the tube needle separation table 203 can be inclined downward (towards the needle recovery channel 208), and the inclination angle between the tube needle separation table 203 and the horizontal plane is greater than or equal to 0 degrees and less than 45 degrees.

[0075] In summary, the present utility model solves the technical problems existing in the existing tube needle separation device, such as the inability to accurately separate the tube needle, the inability to automatically recover the hose, and the easy breakage of the cutting edge of the cutting blade.

[0076] In addition, the present utility model can also separate the needle part and the hose part with the same length.

[0077] Although the above has described the present utility model in detail, the present utility model is not limited thereto, and those skilled in the art of this technology can make various modifications according to the principle of the present utility model. Therefore, all modifications made according to the principle of the present utility model should be understood to fall within the protection scope of the present utility model.

Claims

1. A medical tube needle separation device, characterized in that include: A tube-needle separation platform (203) disposed in the housing (100); A hose collection chamber (209) is arranged in the housing (100) and below the tube-needle separation platform (203); A needle recovery channel (208) is arranged in the housing (100) at one side of the tube-needle separation platform (203) and away from the hose collection chamber (209); A hose tightener (212) disposed above the tube-needle separation platform (203); A needle depressor (210) disposed above the needle recovery channel (208); A hose cutter (211) disposed above the tube-needle separation station (203) and located between the hose tightener (212) and the needle depressor (210); and A limit plate (205) is arranged in the housing (100) and is used to limit the horizontal movement position of the medical tube needle (400).

2. The medical tube needle separation device according to claim 1, characterized in that: The housing (100) comprises a bottom plate (104), two parallel side plates (102) with upper steps (1201) mounted on the bottom plate (104), and a second side plate (103) perpendicular to the side plates (102).

3. The medical tube needle separation device according to claim 1, characterized in that: The needle recovery channel (208) comprises a first partition plate (206) and the limiting plate (205) respectively connected to two side plates (102).

4. The medical tube needle separation device according to claim 2, characterized in that: The hose collecting chamber (209) comprises a second partition plate (207) and the second side plate (103) respectively connected to the two side plates (102).

5. The medical tube needle separation device according to claim 2, characterized in that: The hose collecting chamber (209) comprises a first partition plate (206) and the second side plate (103) respectively connected to the two side plates (102).

6. The medical tube needle separation device according to claim 1, characterized in that: The tube-needle separation platform (203) is supported by the second partition plate (207) and the first partition plate (206) respectively.

7. The medical tube needle separation device according to claim 1, characterized in that: The power source is electrically connected to the hose tightener (212) via a push button switch (204).

8. The medical tube needle separation device according to claim 7, characterized in that: The power source is electrically connected to the needle depressor (210) via the button switch (204) and the first delay switch circuit (501).

9. The medical tube needle separation device according to claim 8, characterized in that: The power source is electrically connected to the hose cutter (211) via a button switch (204) and a second delay switch circuit (502).

10. The medical tube needle separation device according to claim 9, characterized in that: The delay time of the first delay switch circuit (501) is shorter than the delay time of the second delay switch circuit (502).

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