Syringe needle tube separating device

Abstract

The utility model relates to an injector needle tube separating device which comprises a needle tube separating table arranged in a shell. The needle tube collecting chamber is arranged in the shell and is positioned below the needle tube separating table; the needle recovery channel is arranged in the shell, is positioned on one side of the tube-needle separation table and is far away from the needle tube collection chamber; the needle tube pressing device is arranged above the needle tube separating table; the needle head breaking device is arranged above the needle head recovery channel; and the limiting piece is arranged in the shell and is used for limiting the moving position of the injector on the needle tube separation table. The syringe needle tube separating device solves the technical problems that according to an existing syringe needle tube separating device, a needle handle and a needle tube need to be separated manually, and the needle tube cannot be automatically recycled.

Description

Technical Field

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

[0002] Disposable syringes have been widely used at present. As a result, a large number of waste syringes are generated. These waste syringes have sharp needles and are often mixed with other medical wastes. When sorting and processing, it is very easy to stab people's hands.

[0003] Therefore, how to solve the problem that the needles of waste syringes in the prior art are easy to stab people's hands is a technical problem that those skilled in the art urgently need to solve.

[0004] To solve this problem, Chinese Patent CN117547685A provides a Figure 2 needle automatic induction collection device as shown, which includes a support, a fixing device, a bending assembly, a blanking assembly and a container. The fixing device is used to fix the needle handle 2 of the needle, and the fixing device is arranged on the support. The needle handle 2 refers to the structure connected to the syringe 25, and the needle body 3 refers to the metal part that pierces the human body. The needle body 3 is connected to the needle handle 2.

[0005] The bending assembly includes a support shaft 4, a rotating seat 5, an eccentric shaft 6 and a driving motor 7. The support shaft 4 is connected to the support 1, and the rotating seat 5 is rotatably sleeved on the support shaft 4. An annular protrusion can be sleeved on the support shaft 4, and the annular protrusion can be connected to the support shaft 4 by means of threaded connection or positioning pin connection. The rotating seat 5 is rotatably sleeved on the support shaft 4 and is axially positioned by the annular protrusion. The eccentric shaft 6 is connected to the rotating seat 5, and the eccentric shaft 6 is arranged parallel to the support shaft 4. A gap for the needle body 3 of the needle to extend into is arranged between the eccentric shaft 6 and the support shaft 4. The driving motor 7 is in transmission connection with the rotating seat 5 to drive the rotating seat 5 to rotate. For example, the driving motor 7 can be in transmission connection with the rotating seat 5 by means of gear transmission. The needle handle 2 of the needle is fixed by the fixing device, and at the same time, the needle body 3 of the needle extends between the support shaft 4 and the eccentric shaft 6. Then, the driving motor 7 drives the rotating seat 5 to rotate, and the rotating seat 5 drives the eccentric shaft 6 to rotate. When the eccentric shaft 6 rotates, it drives the needle body 3 to bend circumferentially along the support shaft 4 to form an annular structure. Then, the blanking assembly drives the needle to fall from the fixing device and enter the container 8 for collection. The needle body 3 of the needle can be formed into an annular structure, and the tip of the needle is no longer exposed, so that the needle will not stab people.

[0006] The main defects of the needle automatic induction collection device are: 1) manual separation of the needle handle and the needle tube is required, which is easy to cause pollution of the residual liquid in the needle tube to the human body; 2) the needle tube cannot be automatically recycled. Summary of the Invention

[0007] The purpose of the present utility model is to provide a syringe needle tube separation device capable of solving the above technical problems.

[0008] A syringe needle tube separation device of the present utility model includes:

[0009] A needle tube separation table disposed inside the housing;

[0010] A needle tube collection chamber disposed inside the housing and located below the needle tube separation table;

[0011] A needle head recovery channel disposed inside the housing on one side of the needle tube separation table and away from the needle tube collection chamber;

[0012] A needle tube presser disposed above the needle tube separation table for pressing the needle tube;

[0013] A needle head breaker disposed above the needle head recovery channel for detaching the needle handle from the needle tube;

[0014] A limiting member disposed inside the housing for limiting the movement position of the syringe on the needle tube separation table.

[0015] Preferably, a spring for inclining the separated needle tube towards the needle tube collection chamber is provided on the needle tube separation table.

[0016] Preferably, the limiting member is a limiting block disposed on the needle tube separation table and located at the front end of the spring.

[0017] Preferably, the limiting member is a needle head recovery plate for forming the needle head recovery channel.

[0018] In the first embodiment, the housing includes a bottom plate, two parallel side plates with upper steps mounted on the bottom plate, and a second side plate and a first side plate perpendicular to the side plates.

[0019] Preferably, the needle head recovery channel includes a first support plate connecting the two side plates respectively and the needle head recovery plate.

[0020] Preferably, the needle tube collection chamber includes a second support plate connecting the two side plates respectively and the second side plate.

[0021] Preferably, the needle tube separation table is supported by the second support plate and the first support plate respectively.

[0022] Preferably, the present utility model further includes a placement space for a needle head collection box disposed below the needle head recovery channel.

[0023] Preferably, the needle tube presser includes a telescopic rod and a needle handle pressing piece connected to the telescopic rod and adapted to the size of the needle handle, and a soft material is provided on the inner surface of the needle handle pressing piece.

[0024] Preferably, the needle breaker includes a telescopic rod and a needle holder pressing piece connected to the telescopic rod and adapted to the size of the needle holder. The inner surface of the needle holder pressing piece is provided with a material for increasing frictional resistance.

[0025] Preferably, the power supply is electrically connected to the syringe barrel compressor via a push-button switch.

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

[0027] Preferably, an upper cover plate is fixed to the upper end of the upper step of the side plate, and the needle breaker and the syringe barrel compressor are respectively fixed to the lower end of the upper cover plate.

[0028] Preferably, the upper end of the needle recovery plate is fixedly connected to the upper cover plate, and both sides are respectively connected to the two side plates.

[0029] In the second embodiment, the housing includes a bottom plate, two side plates with upper steps arranged in parallel and mounted on the bottom plate, and a needle recovery plate and a second side plate perpendicular to the side plates.

[0030] Preferably, the syringe barrel separation table is fixed to the two side plates, for example, fixed to the two side plates by screws.

[0031] The utility model has the following technical effects: 1) After the syringe is placed on the syringe barrel separation table, the syringe barrel compressor and the needle breaker operate successively to complete the separation of the syringe barrel and the needle holder, avoiding the risk of liquid in the syringe barrel contaminating the human hand when the human hand holds the syringe barrel for separation; 2) The separated syringe barrel can be automatically recovered into the syringe barrel collection chamber; 3) The probability of the needle stabbing medical staff is reduced.

[0032] The following is a detailed description of the utility model with reference to the accompanying drawings. Description of the Drawings

[0033] Figure 1 is a schematic diagram of the syringe to be separated of the utility model;

[0034] Figure 2 is a schematic diagram of an existing syringe needle collection device;

[0035] Figures 3a - 3c are respectively the front view, top view and left view of the syringe barrel separation device of the utility model;

[0036] Figure 4 is a schematic structural diagram of the first embodiment of the syringe barrel separation device of the utility model;

[0037] Figure 5a is a schematic diagram of a preferred embodiment of the syringe barrel separation plate of the syringe barrel separation device of the utility model;

[0038] Figure 5b is Figure 5a The schematic diagram of the syringe needle tube separation plate after being pressed by the syringe;

[0039] Figure 6a is the front view of the syringe needle tube presser of the syringe needle tube separation device of the present utility model;

[0040] Figure 6b is the left view of the syringe needle tube presser of the syringe needle tube separation device of the present utility model;

[0041] Figure 7 is Figure 4 is the schematic structural diagram of the second embodiment of the syringe needle tube separation device of the present utility model;

[0042] Figures 8a - 8d are respectively the schematic diagrams of the process of separating the tube needle of the syringe needle tube separation device;

[0043] Figure 9 is the circuit diagram of the power supply for the syringe needle tube presser and the needle head cutter of the present utility model;

[0044] Figure 10 is the principle structural diagram of one embodiment of the driving main body and the telescopic rod of the syringe needle tube presser and the needle head cutter that can be adopted by the present utility model;

[0045] Figure 11 is for the syringe needle tube presser and the needle head cutter using Figure 10 the circuit diagram of the driving main body and the telescopic rod shown.

[0046] Explanation 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; syringe needle tube separation table 203, guiding groove 2031, spring 2032; syringe needle tube limiting block 2032; push button switch 204; needle head recovery plate 205; first support plate 206; second support plate 207; needle head recovery channel 208; syringe needle tube collection chamber 209; needle head cutter 210; syringe needle tube presser 211; driving main body 2111; telescopic rod 2112; arc-shaped pressing piece 2113; bolt 2114; placement space 213; needle head collection box 300; syringe 400; needle head 401; needle handle 402; syringe needle tube 403; delay circuit 501; coil holder 601; coil 602; end cover 603; tension spring 604, iron core 605. Detailed implementation manners

[0047] As Figures 3a - 3c and Figure 4As shown in the figure, a syringe needle tube separation device of the present utility model includes: a needle tube separation table 203 disposed inside the housing 100; a needle tube collection chamber 209 disposed inside the housing 100 and below the needle tube separation table 203 for collecting the separated needle tubes; a needle head recovery channel 208 disposed inside the housing 100 and on one side of the needle tube separation table 203 for recovering the separated needle heads; a needle tube presser 211 disposed above the needle tube separation table 203; a needle head cutter 210 disposed above the needle head recovery channel 208; and a limiting member disposed inside the housing 100 for limiting the horizontal movement position of the syringe 400.

[0048] The limiting member for limiting the horizontal movement position of the syringe 400 in the present utility model can be Figure 4 the needle head recovery plate 205 in Figure 7 or the needle tube limiting block 2033 shown in

[0049] As Figure 4 shown, when separating the syringe needle tube, place the syringe 400 on the needle tube separation table 203 so that the needle head 401 abuts against the needle head recovery plate 205. After the needle tube presser 211 presses the syringe needle tube 403 onto the needle tube separation table 203, the needle head cutter 210 presses down the needle handle 402 to separate the plastic needle handle 402 of the syringe 400 from the needle tube 403 (such as the part where the needle handle 402 is connected to the needle tube 403 breaks or separates). After separation, the needle head 401 falls along the needle head recovery channel 208, and then through the reset of the needle tube presser 211, the separated needle tube 403 slides into the needle tube collection chamber 209.

[0050] As Figures 3a - 3c 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 head recovery channel 208 includes a first support plate 206 and a needle head recovery plate 205 respectively connecting the two side plates 102; that is, the needle head recovery channel 208 is enclosed by the first support plate 206 and the needle head recovery plate 205 respectively connecting the two side plates 102. The needle tube collection chamber 209 includes a second support plate 207 and a second side plate 103 respectively connecting the two side plates 102; that is, the needle tube collection chamber 209 is enclosed by the second support plate 207 and the second side plate 103 respectively connecting the two side plates 102. The needle tube separation table 203 is respectively supported by the second support plate 207 and the first support plate 206.

[0051] The present utility model further includes a placement space 213 for a needle collection box 300 disposed below the needle recovery channel 208. After the needle collection box 300 is full of needles, it can be removed from the placement space 213. The needle collection box 300 is preferably a closable needle accommodation box so as to transport the recovered needles to a designated location for destruction in a closed environment.

[0052] Figure 5a A preferred embodiment of the syringe separation table 203 is shown, which is provided with a syringe guide groove 2031 for guiding the movement of the syringe 400 and a spring 2032 for tilting the syringe barrel 403 towards the syringe barrel collection chamber 209. The spring 2032 is located at the front end of the syringe separation table 203, that is, the left side of the syringe separation table 203 in the figure; one end of it is fixed on the syringe separation table 203. When the syringe is installed on the syringe separation table 203 and a downward pressure F is applied, the spring 2032 is compressed, as Figure 5b shown.

[0053] Figure 6a and Figure 6b The structure of the syringe barrel presser 211 is shown. The syringe barrel presser 211 includes a pushing device having a pushing main body 2111 with a telescopic rod 2112, such as a hydraulic pushing device, a pneumatic pushing device or an electric push rod, and an arc-shaped pressing piece 2113 adapted to the syringe barrel 403 fixed on the telescopic rod 2112 by bolts 2114; a soft material, such as rubber or gel, can be provided on the inner surface of the arc-shaped pressing piece 2113. 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, gears or worm gears, 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 invention content of the present utility model, so the description is omitted. The needle breaker 210 has the same structure as that of the syringe barrel presser 211, and also includes a pushing device having a telescopic rod and an arc-shaped pressing piece adapted to the needle handle 402 fixed on the telescopic rod. The inner surface of the arc-shaped pressing piece of the needle breaker 210 is preferably provided with a material that can increase the frictional resistance, such as rubber or gel, etc., so that when the needle breaker 210 presses down the needle handle 402, it is easier to make the needle handle 402 fall off from the syringe barrel 403.

[0054] Figure 9 The circuit structure of the present utility model for controlling the syringe barrel presser 211 and the needle breaker 210 is shown. The power supply is electrically connected to the syringe barrel presser 211 via the push button switch 204, that is, the power supply supplies power to the syringe barrel presser 211 via the push button switch 204. The power supply is electrically connected to the needle breaker 210 via the push button switch 204 and the first delay switch circuit 501, that is, the power supply supplies power to the needle breaker 210 via the push button switch 204 and the delay switch circuit 501.

[0055] The delay switch circuit 501 can be implemented using various existing delay switch circuits, such as those implemented using a timing circuit, a timer, or a 555 circuit. Figure 9 The shown RC delay switch circuit only provides one implementation. Among them, the delay switch circuit 501 is composed of a switching transistor Q1, a resistor R1, a capacitor C1, and a freewheeling diode D1.

[0056] Figure 9 The working principle of the shown circuit is that when the power switch K is closed, the positive power supply terminal Ecc is connected to the retraction control terminals 2 of the syringe barrel compressor 211 and the needle head cutter 210 respectively through the push button switch 204, causing the telescopic rods of the syringe barrel compressor 211 and the needle head cutter 210 to retract and reset. When the syringe 400 is placed on the syringe barrel separation table 203 such that its needle head 401 abuts against the needle head recovery plate 205, and the push button switch 204 is pressed, the positive power supply terminal Ecc is connected to the extension control terminal 1 of the syringe barrel compressor 211, and is connected to the extension control terminal 1 of the needle head cutter 210 through the delay circuit 501, causing the telescopic rod of the syringe barrel compressor 211 to immediately press down on the syringe barrel 402 of the syringe 400, and the needle head cutter 210 to press down on the needle handle 402 after a first delay time, separating the needle handle 402 from the syringe barrel 403.

[0057] Figure 10 Shows an embodiment of the driving body and the telescopic rod of the syringe barrel compressor and the needle head cutter that can be adopted by the present utility model. The driving body includes a bobbin 601, a coil 602 wound around the bobbin, an end cap 603 fixed to one end of the bobbin, and a tension spring 604 installed inside the bobbin; the telescopic rod is an iron core 605 that can extend from the other end of the bobbin 601, and the tension spring 604 is connected between the end cap 603 and the iron core 605. When the coil 602 wound around the bobbin is energized (i.e., Figure 11 when the push button switch 204 in Figure 10 is pressed), the bobbin generates a magnetic field that causes the iron core 605 to extend, and the iron core 605 extends outwards (as Figure 11 shown), and the tension spring 604 generates a pulling force. When the coil is de-energized (i.e., Figure 11 when the push button switch 204 in Figure 11 is reset), the tension spring 604 causes the iron core 605 to reset through the pulling force (not shown in the figure).

[0058] An upper cover plate 201 is fixed to the upper end of the upper step 1201 of the side plate 102. The lower end of the upper cover plate 201 is respectively fixed with the needle head cutter 210 and the syringe barrel compressor 211. The upper end of the needle head recovery plate 205 is fixedly connected to the upper cover plate 201, and the two sides are respectively connected to the two side plates 102.

[0059] In addition, a baffle 202 is provided above the syringe tube separation table 203 at one end of the upper cover plate of the present utility model to prevent the needle pressing device 210 and the syringe tube pressing device 211 from causing harm to the human body. The baffle 202 is respectively connected to the side plate 102 and the upper cover plate 201. The push button switch 204 is installed on the baffle 202 so that medical staff can press the push button switch 204 while placing the syringe 400 on the syringe tube separation table 203 with one hand.

[0060] Figure 7 Fig. shows the second embodiment of the present utility model. The difference between the second embodiment and the first embodiment shown in Fig. 3 is that: 1) a limit block 2033 for preventing the syringe tube 403 from moving forward is provided on the syringe tube separation table 203. The limit block 2033 is located in front of the spring 2032 so that the syringe tube 403 can press down the spring 2032, and its height is preferably greater than or equal to the height of the spring 2032 when it bounces up; 2) the housing 100 includes a bottom plate 104, two side plates 102 arranged in parallel and provided with upper steps 1201 on the bottom plate 104, and a first support 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 needle recovery plate 205 serves as the first side plate.

[0061] Figures 8a - 8b Fig. shows the whole process of separating the syringe tube needle of the present utility model, which will be described in detail below.

[0062] After the power switch K is turned on, the telescopic rods of the needle pressing device 210 and the syringe tube pressing device 211 retract and reset; medical staff place the syringe 400 on the syringe tube separation table 203 and move the syringe 400 forward until the needle 401 abuts against the needle recovery plate 205, and then the medical staff presses the push button switch 204 downward, so that the telescopic rod of the syringe tube pressing device 211 extends downward until it presses the syringe tube 403 of the syringe 400 and compresses the spring 2032, as Figure 8a shown.

[0063] After a first delay time, the telescopic rod of the needle pressing device 210 extends downward and presses the needle handle 402 of the syringe 400, as Figure 8b shown.

[0064] The telescopic rod of the needle pressing device 210 continues to press downward until the needle handle 402 falls off the syringe tube 403 and falls into the needle collection box 300 through the needle recovery channel 208, as Figure 8c shown.

[0065] The medical staff releases the push button switch 204, the telescopic rods of the needle pressing device 210 and the syringe tube pressing device 211 retract and reset, and the spring 2033 on the syringe tube separation table 203 resets, causing the separated syringe tube 403 to tilt towards the syringe tube collection chamber 209, so that the syringe tube slides into the syringe tube collection chamber 209, as Figure 8d shown.

[0066] In addition, the push-button switch 204 is preferably a switch with a delayable contact switching function. In this way, when the hand releases the push-button switch 204, the push-button switch 204 supplies power to the reset terminals of the needle presser 210 and the syringe barrel presser 211 after a period of time, allowing the hand sufficient time to move away from the syringe barrel 403.

[0067] The main features of the present invention are as follows: the syringe separator table 203 is used to place the syringe 400 to be separated; the needle recovery plate 205 or the limit block 2033 is used to limit the position of the cannula needle placed on the syringe separator table 203; the syringe barrel presser 211 is used to press the syringe barrel 403 of the cannula needle; the needle presser 210 is used to press down the needle handle 402 to the entrance of the needle recovery channel 208, separating the needle handle 402 from the syringe barrel 403, so that the needle 401 falls into the needle collection box 300 through the needle recovery channel 208; and the syringe barrel 403 slides into the syringe barrel collection chamber 209 under the elastic force of the spring 2033.

[0068] To facilitate the sliding of the syringe barrel 403, the syringe separator table 203 can also be inclined towards the syringe barrel collection chamber 209, with an inclination angle greater than or equal to 0 degrees and less than 10 degrees.

[0069] In summary, the present utility model can avoid manually holding the syringe barrel to separate the cannula needle from the needle handle, and avoid the liquid in the separated flexible tube from contaminating the hand; and it can also automatically recover the separated syringe barrel into the syringe barrel collection chamber.

[0070] Although the present utility model has been described in detail above, the present utility model is not limited thereto. 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 syringe needle separation device, characterized in that include: A needle tube separation platform (203) disposed in the housing (100); A needle tube collection chamber (209) disposed in the housing (100) and below the needle tube separation platform (203); A needle recovery channel (208) is arranged in the housing (100) and is located on one side of the needle tube separation platform (203) and away from the needle tube collection chamber (209); A needle tube presser (211) disposed above the needle tube separation platform (203) and used for pressing the needle tube (403); A needle breaker (210) disposed above the needle recovery channel (208) and used for causing the needle handle (402) to fall off the needle tube (403); A limiting member is arranged in the housing (100) and is used to limit the moving position of the syringe (400) on the needle tube separation platform (203).

2. The syringe needle tube separation device according to claim 1, characterized in that: The needle tube separation platform (203) is provided with a spring (2032) for tilting the separated needle tube (403) toward the needle tube collection chamber (209).

3. The syringe needle tube separation device according to claim 1 or 2, characterized in that: The limiting member is a limiting block (2033) disposed on the needle tube separation platform (203) and located before the spring (2032).

4. The syringe needle separation device according to claim 1, characterized in that: The limiting member is a needle recovery plate (205) used to form a needle recovery channel (208).

5. The syringe needle tube separation device according to claim 4, characterized in that: The needle recovery channel (208) comprises a first support plate (206) and the needle recovery plate (205) respectively connected to two side plates (102).

6. The syringe needle tube separation device according to claim 1, characterized in that: The needle tube collection chamber (209) comprises a second support plate (207) and a second side plate (103) respectively connected to two side plates (102).

7. The syringe needle tube separation device according to claim 1, characterized in that: The needle tube compressor (211) comprises a telescopic rod (2112), and a needle handle pressing piece (2113) connected to the telescopic rod (2112) and adapted to the size of the needle handle, wherein the inner surface of the needle handle pressing piece (2113) is provided with a soft material.

8. The syringe needle separation device according to claim 1, characterized in that: The needle tip crusher (210) comprises a telescopic rod and a needle handle pressing piece connected to the telescopic rod and adapted to the size of the needle handle, wherein the inner surface of the needle handle pressing piece is provided with a material for increasing friction resistance.

9. The syringe needle tube separation device according to claim 1, characterized in that: The power source is electrically connected to the needle tube compressor (211) via a button switch (204).

10. The syringe needle tube separation device according to claim 9, characterized in that: The power source is electrically connected to the needle breaker (210) via the button switch (204) and the delay switch circuit (501).

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