Needle head pull-apart and recovery device of blood taking needle and intelligent blood taking terminal

Abstract

The utility model discloses a blood taking needle pull-apart recovery device and an intelligent blood taking terminal.The blood taking needle pull-apart recovery device comprises a pull-apart assembly and a recovery box, an opening is formed in the position, close to the pull-apart assembly, of the top face of the recovery box, a needle fixing groove is formed in the middle of the lower edge of the opening, and the pull-apart assembly comprises a heat sealing head, a supporting plate and a pull-apart mechanism; the pull-apart mechanism comprises two guide through grooves of the same structure, a guide module, a mounting plate, a lead screw motor and two pull-apart pieces of the same structure, the guide module comprises a lead screw, a lead screw nut, a sliding block and two sliding rails, a kidney-shaped hole is formed in the sliding block, the two pull-apart pieces penetrate through the two guide through grooves in the vertical direction, and the bottom ends of the two pull-apart pieces are inserted into the kidney-shaped hole. According to the device for pulling apart and recycling the needle head of the blood taking needle, the needle head of the blood taking needle can be automatically pulled apart and recycled, occupational exposure caused by the fact that a worker is punctured by the needle head in the operation process is avoided, the catheter cannot slip when the needle head of the blood taking needle is pulled apart, and the two pulling-apart pieces cannot rotate.

Description

Technical Field

[0001] The utility model belongs to the field of blood collection, in particular to a blood collection needle tearing and recovery device and an intelligent blood collection terminal. Background Art

[0002] At present, various medical institutions such as hospitals widely use blood collection needles to draw blood from patients and conduct tests for auxiliary diagnosis. However, after the blood collection is completed, the staff still needs to manually heat-seal the needle and catheter and then manually separate and discard the needle. The staff are very likely to be pricked by the needle during the operation and cause occupational exposure. In addition, the manual handling of the needle by the staff leads to a low degree of automation and a large workload. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a needle tearing and recycling device for a blood collection needle, comprising: a tearing assembly and a recycling box arranged adjacent to each other along a first horizontal direction, an opening is arranged on the top surface of the recycling box near the tearing assembly, and a needle fixing groove is opened in the middle of the lower edge of the opening;

[0004] in,

[0005] The tearing assembly includes a heat sealing head, a support plate, and a tearing mechanism. The support plate is fixedly connected to the recycling box and is lower than the opening of the recycling box in the vertical direction. The heat sealing head is located above the support plate and is arranged between the tearing mechanism and the recycling box. The heat sealing head is fixedly connected to the support plate. The heat sealing head includes a heat sealing groove extending along a first horizontal direction, and the heat sealing groove is arranged in a colinear manner with the needle fixing groove.

[0006] The tearing mechanism includes two guide grooves of the same structure, a guide module, a mounting plate, a screw motor, and two tearing pieces of the same structure. The two guide grooves penetrate the upper and lower surfaces of the support plate, are arranged at intervals along a second horizontal direction perpendicular to the first horizontal direction, and are symmetrically arranged relative to the heat sealing groove. The spacing between the two guide grooves gradually decreases in the direction away from the recycling box.

[0007] Mounting plate for The shaped mounting plate includes a first vertical portion, a horizontal portion, and a second vertical portion in the vertical direction to form an integral structure. The first vertical portion is arranged below the support plate and is used to fix and install the screw motor. The horizontal portion is arranged on the upper surface of the support plate and is fixedly connected to the support plate. The second vertical portion is arranged above the support plate, and a catheter fixing groove for fixing the catheter is arranged on the upper portion thereof. The catheter fixing groove is arranged in the same line as the heat sealing groove and the needle fixing groove. The second vertical portion is arranged adjacent to one end of the two guide through grooves away from the recovery box.

[0008] The guide module is arranged on the lower surface of the support plate, including a lead screw, a lead screw nut, a slider, and two slide rails arranged along the second horizontal direction and at intervals. The lead screw is connected to the output shaft of the lead screw motor, the lead screw nut is fixedly penetrated on the lead screw, the slider is fixed above the lead screw nut, the two slide rails are fixed on the lower surface of the support plate, the slider is located between the two slide rails and can slide back and forth along the two slide rails, the slider is provided with a waist-shaped hole whose length direction is parallel to the second horizontal direction, and the two tearing pieces pass through the two guide grooves respectively in the vertical direction and their bottom ends are both inserted into the waist-shaped holes.

[0009] Furthermore, the lower edge of the opening is an inclined lower edge, and the middle of the inclined lower edge is the lowest point thereof.

[0010] Furthermore, the width of the needle fixing groove is slightly smaller than the diameter of the catheter.

[0011] Furthermore, the tearing piece is a chamfered stepped cylinder with a thick upper portion and a thin lower portion, wherein the upper portion and the lower portion are respectively located above and below the support plate, and the bottom end of the lower portion is inserted into the waist-shaped hole.

[0012] The top end of the upper part is provided with an oblique cut surface as a guide surface, and the bottom end of the guide surface is close to the corresponding guide through groove.

[0013] Furthermore, the surface of the tearing piece facing the corresponding guide through groove is a first vertical plane, and at least two anti-slip grooves are arranged on the first vertical plane at intervals along the first horizontal direction.

[0014] Furthermore, the anti-slip groove is arranged along the vertical direction, and its two ends extend to the bottom end of the guide surface and the bottom surface of the upper part of the tearing piece respectively.

[0015] Furthermore, the number of the anti-skid grooves is 2.

[0016] Furthermore, the surface of the lower bottom end of the tearing piece facing the second vertical portion of the mounting plate is a second vertical plane.

[0017] The utility model also provides an intelligent blood sampling terminal, which comprises the aforementioned blood sampling needle tearing and recovering device.

[0018] Compared with the prior art, the needle tearing and recovering device for a blood collection needle provided by the utility model can tear off and recover the needle of the blood collection needle, has a high degree of automation, and can also prevent workers from being pricked by the needle during operation and causing occupational exposure. When the needle of the blood collection needle is torn off, the catheter will not slip and the tearing piece will not rotate, and there is no need to use a sensor for resetting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a device for tearing off and recovering a blood collection needle according to an embodiment of the utility model is shown;

[0020] Figure 2 A schematic diagram of the structure of a guide module in a needle tear-off recovery device for a blood collection needle according to an embodiment of the utility model is shown;

[0021] Figure 3 A schematic diagram of the structure of a tearing-off member in a needle tearing-off and recovering device for a blood collection needle according to an embodiment of the utility model is shown;

[0022] Description of main reference numerals:

[0023] 1: tear-off assembly, 11: heat sealing head, 111: heat sealing groove, 12: support plate, 13: tear-off mechanism, 131: guide through groove, 132: guide module, 133: mounting plate, 134: screw motor, 135: tear-off piece, 1321: screw, 1322: screw nut, 1323: slider, 13231: waist-shaped hole, 1324: slide rail, 1351: beveled surface, 1352: anti-slip groove, 1353: second vertical plane, 2: recovery box, 21: opening, 22: needle fixing groove, 3: catheter, 4: needle. DETAILED DESCRIPTION

[0024] The specific implementation of the utility model is described in detail below. It should be understood that the implementation of the utility model is not limited to the embodiments shown in the accompanying drawings, and the protection scope of the utility model is not limited by the specific implementation. The words "first", "second" and similar words used in the utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "one" or "the" do not indicate quantity restrictions, but indicate that there is at least one. Unless otherwise expressly indicated, throughout the specification and claims, the term "include" or its changes such as "include" or "include" will be understood to include the stated elements or components, without excluding other elements or other components. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] Unless otherwise defined, the meanings of all technical terms and scientific terms used in the present invention are the same as those generally understood by ordinary technicians in the field. In addition, the meanings of the technical terms and scientific terms used in the present invention should be interpreted as having the same meaning as the corresponding terms defined in commonly used technical manuals, and should not be interpreted as having idealized or excessively formal meanings, unless explicitly defined in this utility model.

[0026] Figure 1 The schematic diagram of the structure of the needle tearing and recovery device for the blood collection needle of the embodiment of the utility model is shown in FIG. Figure 1 The needle tearing and recycling device for the blood collection needle comprises: a tearing assembly 1 and a recycling box 2 arranged adjacent to each other along a first horizontal direction. An opening 21 is arranged on the top surface of the recycling box near the tearing assembly, and a needle fixing groove 22 is arranged in the middle of the lower edge of the opening 21.

[0027] The tearing assembly 1 includes a heat sealing head 11, a support plate 12, and a tearing mechanism 13. The support plate 12 is fixedly connected to the recycling box 2 and is lower than the opening 21 of the recycling box 2 in the vertical direction. The heat sealing head 11 is located above the support plate 12 and is arranged between the tearing mechanism 13 and the recycling box 2. The heat sealing head 11 is fixedly connected to the support plate 12. The heat sealing head 11 includes a heat sealing groove 111 extending along the first horizontal direction, and the heat sealing groove 111 is arranged colinearly with the needle fixing groove 22.

[0028] Figure 2 The schematic diagram of the structure of the guide module in the needle tearing and recovery device for the blood collection needle of the embodiment of the utility model is shown. Figure 1 , Figure 2 The tearing mechanism 13 includes two guide slots 131 of the same structure, a guide module 132, a mounting plate 133, a screw motor 134, and two tearing pieces 135 of the same structure. The two guide slots 131 penetrate the upper and lower surfaces of the support plate 12, are arranged at intervals along a second horizontal direction perpendicular to the first horizontal direction, and are symmetrically arranged relative to the heat sealing slot 111. The spacing between the two guide slots 131 gradually decreases in the opposite direction of the first horizontal direction (i.e., the direction away from the recycling box 2).

[0029] The mounting plate 133 is used to fix the screw motor 132 and the guide tube 3. Specifically, the mounting plate 133 is The shaped mounting plate includes, in the vertical direction, a first vertical portion, a horizontal portion, and a second vertical portion, which form an integral structure. The first vertical portion is arranged below the support plate 12 and is used to fix and install the screw motor 132. The horizontal portion is arranged on the upper surface of the support plate 12 and is fixedly connected to the support plate 12. The second vertical portion is arranged above the support plate 12. A catheter fixing groove for fixing the catheter 3 is provided on the upper portion of the second vertical portion, and the catheter fixing groove is colinearly arranged with the heat sealing groove 111 and the needle fixing groove 22. The second vertical portion is adjacent to one end of the two guide through grooves 131 away from the recovery box 2.

[0030] The guide module 132 is arranged on the lower surface of the support plate 12, including a screw rod 1321, a screw nut 1322, a slider 1323, and two slide rails 1324 arranged along the second horizontal direction and at intervals. The screw rod 1321 is connected to the output shaft of the screw motor 134, the screw nut 1322 is fixedly penetrated on the screw rod 1321, the slider 1323 is fixed above the screw nut 1322 (in this embodiment, it is fixed by 4 screws, but not limited to this), the two slide rails 1324 are fixed to the lower surface of the support plate 12 (in this embodiment, it is fixed by screws, but not limited to this), the slider 1323 is located between the two slide rails 1324 and can slide back and forth along the two slide rails 1324, the slider 1323 is provided with a waist-shaped hole 13231 whose length direction is parallel to the second horizontal direction, and the two tearing pieces 135 respectively pass through the two guide through grooves 131 in the vertical direction and their bottom ends are both inserted into the waist-shaped holes 13231. The lead screw nut 1322 converts the rotational motion of the lead screw motor 134 and the lead screw 1321 into a linear motion, and the slider 1323 drives the two tearing pieces 135 to reciprocate in the corresponding guide slots 131 along the first horizontal direction.

[0031] Furthermore, in order to fix the needle 4 smoothly and quickly, the lower edge of the opening 21 is an inclined lower edge, and the middle of the inclined lower edge is the lowest point.

[0032] Furthermore, in order to prevent the catheter 3 from sagging due to its own gravity, the width of the needle fixing groove 22 is slightly smaller than the diameter of the catheter 3 , so that the catheter 3 and the needle fixing groove 22 form an interference fit.

[0033] Figure 3 The schematic diagram of the structure of the tearing-off member in the needle tearing-off and recovery device for the blood collection needle according to the embodiment of the utility model is shown. Figure 3 In order to enhance the guiding effect of the tearing piece 135 so that the catheter 3 can be more smoothly inserted into the gap between the two tearing pieces 135, the tearing piece 135 is a beveled stepped cylinder with a thick upper part and a thin lower part, and its upper and lower parts are respectively located above and below the support plate 12, and the bottom end of the lower part is inserted into the waist-shaped hole 1323. The beveled surface 1351 of the tearing piece 135 is located at the top of the upper part and is a guiding surface, and the bottom end of the guiding surface 1351 is close to the corresponding guiding groove 131.

[0034] Furthermore, in order to increase the contact area between the tearing piece 135 and the catheter 3 and prevent the catheter 3 from slipping during the tearing process, the surface of the tearing piece 135 facing the corresponding guide groove 131 is a first vertical plane, and at least two anti-slip grooves 1352 are arranged on the first vertical plane along the first horizontal direction.

[0035] Specifically, the anti-slip groove 1352 is arranged along the vertical direction, and its two ends extend to the bottom end of the guide surface 1351 and the bottom surface of the upper part of the tearing piece 135 respectively.

[0036] Specifically, the number of the anti-slip grooves 1352 is two.

[0037] Furthermore, in order to prevent the tearing piece 135 from rotating when reciprocating along the first horizontal direction, the surface of the lower bottom end of the tearing piece 135 facing the second vertical portion of the mounting plate 133 is a second vertical plane 1353 .

[0038] During operation, the operator puts the needle 4 into the opening 21 of the recycling box 2. At this time, the catheter 3 enters the opening 21 along the inclined lower edge of the opening 21, pulls the catheter 3, makes the needle 4 press against the needle fixing groove 22, thereby fixing the needle 4 and the needle fixing groove 22, and then pulls the catheter 3 downward to make the catheter 3 clamped in the catheter fixing groove of the mounting plate 133, then starts the heat sealing head 11 to heat-seal the needle 4 and the catheter 3, and then starts the screw motor 134. The rotation of the screw motor 134 drives the guide module 132 and the two tearing pieces 135 to move away from the recycling box 2. The two tearing pieces 14 clamp the catheter 3 due to the gradually decreasing distance between them during the movement process. When continuing to move, the needle 4 is fixed to the needle fixing groove 22, and the catheter 3 is further pulled and torn off. At this time, the needle 4 falls into the recycling box 2 due to its own gravity.

[0039] After the conduit 3 is torn off, as long as the screw motor 134 is controlled to rotate in the opposite direction, the guide module 132 and the two tearing pieces 135 will move toward the direction close to the recovery box 2 to achieve reset so as not to affect the smooth execution of the next tearing action.

[0040] The utility model also provides an intelligent blood sampling terminal, which comprises the aforementioned blood sampling needle tearing and recovering device.

[0041] In summary, the utility model provides a needle tearing and recycling device for a blood collection needle and an intelligent blood collection terminal, which are equipped with a recycling box 2 with an opening 21 and a needle fixing groove 22, a heat sealing head 11, a support plate 12, two guide grooves 131, a guide module 132, a mounting plate 133, a screw motor 134, and two tearing pieces 135 with the same structure, and the catheter fixing groove for fixing the catheter 3 is arranged in a colinear line with the heat sealing groove 111 and the needle fixing groove 22, so as to realize the tearing and recycling of the needle 4 of the blood collection needle, with a high degree of automation, and can also prevent the staff from being pricked by the needle during operation and causing occupational exposure; in addition, the tearing piece 135 can be reset after the catheter 3 is torn off by reversing the screw motor 134, without the need to use expensive sensors; finally, when the needle 4 of the blood collection needle is torn off, the catheter will not slip and the two tearing pieces 135 will not rotate.

[0042] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different options and changes. The scope of protection of the present invention is defined by the claims and their equivalents.

Claims

1. A device for recovering a blood collection needle after it is torn off, characterized in that: include: A tearing component and a recycling box are arranged adjacent to each other along a first horizontal direction, an opening is arranged on the top surface of the recycling box near the tearing component, and a needle fixing groove is arranged in the middle of the lower edge of the opening; in, The tearing assembly includes a heat sealing head, a support plate, and a tearing mechanism. The support plate is fixedly connected to the recycling box and is lower than the opening of the recycling box in the vertical direction. The heat sealing head is located above the support plate and is arranged between the tearing mechanism and the recycling box. The heat sealing head is fixedly connected to the support plate. The heat sealing head includes a heat sealing groove extending along a first horizontal direction, and the heat sealing groove is arranged in a colinear manner with the needle fixing groove. The tearing mechanism comprises two guide slots of the same structure, a guide module, a mounting plate, a screw motor, and two tearing pieces of the same structure. The two guide slots penetrate the upper and lower surfaces of the support plate, are arranged at intervals along a second horizontal direction perpendicular to the first horizontal direction, and are symmetrically arranged relative to the heat sealing slot. The spacing between the two guide slots gradually decreases in a direction away from the recycling box. The mounting plate is The shaped mounting plate includes a first vertical portion, a horizontal portion, and a second vertical portion in the vertical direction to form an integral structure. The first vertical portion is arranged below the support plate and is used to fix and install the screw motor. The horizontal portion is arranged on the upper surface of the support plate and is fixedly connected to the support plate. The second vertical portion is arranged above the support plate, and a catheter fixing groove for fixing the catheter is arranged on the upper portion thereof. The catheter fixing groove is arranged in the same line as the heat sealing groove and the needle fixing groove. The second vertical portion is arranged adjacent to one end of the two guide through grooves away from the recovery box. The guide module is arranged on the lower surface of the support plate, and includes a screw rod, a screw nut, a slider, and two slide rails arranged along the second horizontal direction and at intervals. The screw rod is connected to the output shaft of the screw motor, the screw nut is fixedly penetrated on the screw rod, the slider is fixed above the screw nut, the two slide rails are fixed to the lower surface of the support plate, the slider is located between the two slide rails and can slide back and forth along the two slide rails, the slider is provided with a waist-shaped hole whose length direction is parallel to the second horizontal direction, the two tearing pieces pass through the two guide grooves respectively in the vertical direction and their bottom ends are inserted into the waist-shaped holes.

2. The blood collection needle tear-off recovery device according to claim 1, characterized in that: The lower edge of the opening is an inclined lower edge, and the middle of the inclined lower edge is the lowest point.

3. The blood collection needle tearing and recovery device according to claim 2, characterized in that: The width of the needle fixing groove is slightly smaller than the diameter of the catheter.

4. The blood collection needle tear-off and recovery device according to claim 3, characterized in that: The tearing piece is a chamfered stepped cylinder with a thick upper part and a thin lower part. The upper part and the lower part are respectively located above and below the support plate, and the bottom end of the lower part is inserted into the waist-shaped hole. The top end of the upper portion is provided with a chamfered surface as a guide surface, and the bottom end of the guide surface is close to the corresponding guide through groove.

5. The blood collection needle tear-off and recovery device according to claim 4, characterized in that: The surface of the tearing piece facing the corresponding guide groove is a first vertical plane, and at least two anti-slip grooves are arranged on the first vertical plane at intervals along the first horizontal direction.

6. The device for recovering a blood collection needle after it is torn off according to claim 5, characterized in that: The anti-slip groove is arranged along the vertical direction, and the two ends thereof extend to the bottom end of the guide surface and the bottom surface of the upper part of the tearing piece respectively.

7. The device for recovering a blood collection needle after it is torn off according to claim 6, characterized in that: The number of the anti-skid grooves is 2.

8. The device for recovering a blood collection needle after it is torn off according to claim 7, characterized in that: The surface of the lower bottom end of the tearing piece facing the second vertical portion of the mounting plate is a second vertical plane.

9. Intelligent blood sampling terminal, characterized in that: A device for tearing off and recovering a blood collection needle comprising the device described in any one of claims 1 to 8.

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