Disposable scissors

Abstract

The utility model discloses a pair of disposable scissors, and relates to the technical field of sterile scissors. The scissors comprise a first scissors handle and a second scissors handle. According to the blood bag sample reserving device, when a blood bag sample reserving guide pipe is cut off and the first blade and the second blade are meshed, the first splash-proof box and the second splash-proof box prevent a blood sample from splashing, so that the sampling safety and effectiveness are guaranteed, and the first blade and the second blade are arranged in the first splash-proof box and the second splash-proof box; part of cutting edges of the first blade and the second blade are exposed to be used for shearing, harm of sharp cutting edges to an operator is avoided to the maximum extent, and the first scissor head and the second scissor head inserted into the inserting groove are limited and fixed or are unlimited by arranging the inserting groove, an external thread base, a telescopic spring, a movable base and a limiting protrusion; the first scissor head and the second scissor head can be replaced, operation is convenient and easy, cleaning, disinfection and wiping are not needed after each time of use, and the sampling efficiency is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sterile scissors, in particular to a pair of sterile scissors specially used for sampling blood bag sample catheters and blood spot cards. Background Art

[0002] Blood transfusion therapy has become a routine clinical treatment. To ensure the safety and effectiveness of blood transfusions, transfusion medicine laboratories must perform appropriate testing on patients and blood product samples. Before conducting these laboratory tests and analyses, blood product samples must be collected. Disposable blood bags are commonly used medical devices during blood collection and transfusion. Made of PVC plasticized with diethyl phthalate, the blood collection tubing attached to the bag is heat-sealed using a heat sealer or forceps (each segment has a repeating serial number). This creates multiple blood samples for subsequent ABO / Rh typing, crossmatching, antigen typing, adverse transfusion event investigations, or other laboratory testing. To obtain a blood sample for testing, the blood bag braid and sample tubing must be cut open and the blood in the braid and sample tubing transferred into a sterile container or blood spot card. Medical personnel use medical scissors to cut the blood collection tubing. Currently, the arduous task of sampling blood bag sample catheters and blood spot cards has become a pain point in transfusion medicine laboratories and clinics. The reason is that the medical scissors used for sampling are simple in structure and are no different from conventional scissors, with only a cutting function. When the sample catheter is cut once, the cutting edge of the scissors will come into contact with blood. Before the next cut, the scissors need to be washed, disinfected, and wiped. This process is not only cumbersome and tedious, greatly increasing the workload of medical staff, but may also cause cross-contamination of the next blood sample or contamination of the next blood sample by disinfectant residues due to incomplete disinfection of the scissors, resulting in inaccurate subsequent testing and analysis. If a one-time replacement method is adopted, a large number of medical scissors need to be prepared and uniformly cleaned and disinfected after use. This process is very likely to cause puncture injuries to personnel and poses a great biosafety risk.

[0003] In addition, when using medical scissors to take samples from blood bag catheters and blood spot cards, medical staff often experience blood splattering. The reason is that the pressure in the blood braid or catheter is too high, and the cutting surface of ordinary medical scissors is uneven and there is no shielding. The splashing blood will pose a biosafety risk to the operator and the risk of contaminating other samples. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide a blood bag sample catheter and a special sterile scissors for blood spot card sampling.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: disposable scissors, comprising a first scissors handle and a second scissors handle, a rotating shaft being rotatably installed at the junction of the first scissors handle and the second scissors handle, a first scissors head being detachably installed at one end of the first scissors handle, the upper and lower surfaces of the first scissors head being fixedly connected to a first splash-proof box, a first notch being provided in the middle of one side of the two first splash-proof boxes, the first notch being semicircular, a first blade being fixedly connected to one side of the first scissors head, a second scissors head being detachably installed at one end of the second scissors handle, the upper and lower surfaces of the second scissors head being fixedly connected to a second splash-proof box, a third notch being provided in the middle of one side of the two second splash-proof boxes, the third notch being semicircular, the diameter of the third notch being the same as that of the first notch, and a second blade being fixedly connected to one side of the second splash-proof box.

[0006] Preferably, a first limit plate is fixedly connected to one side of the first scissors head, the first limit plate is located above the first blade, a second slot is opened in the middle of one side of the first limit plate, the second slot is semicircular, and the diameter of the second slot is larger than the diameter of the first slot.

[0007] Preferably, a second limit plate is fixedly connected to one side of the second scissors head, the second limit plate is located below the second blade, and a fourth slot is opened in the middle of one side of the second limit plate. The fourth slot is semicircular, and the diameter of the fourth slot is the same as the diameter of the second slot.

[0008] Preferably, one end of the first scissors handle and the second scissors handle are each provided with a plug-in slot, one end of the first scissors head is movably plugged into the inner wall of one of the plug-in slots, and one end of the second scissors head is movably plugged into the inner wall of the other plug-in slot, and the side walls of the two plug-in slots are each provided with two movable holes, and the interiors of the four movable holes are each provided with a telescopic spring, one end of the four telescopic springs is fixedly connected to a movable seat, and one end of the four movable seats is fixedly connected to a limiting protrusion, and the limiting protrusion is semicircular, wherein two adjacent limiting protrusions are movably contacted with one side of one end of the first scissors head, and two adjacent limiting protrusions are movably contacted with one side of one end of the second scissors head.

[0009] Preferably, one end of each of the four movable holes is threadedly rotatably mounted with an external thread seat, and one end of one of the external thread seats is in movably contact with the other end of a telescopic spring.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. In the present invention, when the blood bag sample tube is cut, the first blade and the second blade engage with each other, and the first splash-proof box and the second splash-proof box prevent the blood sample from splashing, thereby ensuring safe and effective sampling.

[0012] 2. In the present invention, by placing the first blade and the second blade in the first and second splash-proof boxes, the first blade and the second blade partially expose their edges for shearing, thereby minimizing the risk of injury to the operator caused by the sharp blades.

[0013] 3. In the utility model, by providing a plug-in slot, an external thread seat, a telescopic spring, a movable seat and a limiting protrusion, the first scissor head and the second scissor head inserted into the plug-in slot can be fixed or released, so that the first scissor head and the second scissor head can be replaced. The operation is convenient and simple, and there is no need to clean, disinfect or wipe after each use, which effectively improves the sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 The figure is a schematic diagram of the overall structure of the disposable scissors of the present invention.

[0016] Figure 2 This is a schematic diagram of the disposable scissors of the utility model in the open state.

[0017] Figure 3 This is a schematic diagram of another open state of the disposable scissors of the present invention.

[0018] Figure 4 It is a schematic diagram of the separation structure of the first scissors head and the first scissors handle of the utility model.

[0019] Figure 5 This is a schematic diagram of the cross-section structure of the first scissors handle of the present invention.

[0020] Figure 6 It is a schematic diagram of the separation structure of the second scissors head and the second scissors handle of the utility model.

[0021] Figure 7 This is a schematic diagram of the cross-section structure of the second scissors handle of the present invention.

[0022] In the figure: 1. First scissors handle; 2. Second scissors handle; 3. Rotating shaft; 11. First scissors head; 12. First splash-proof box; 13. First notch; 14. First blade; 15. First limiting plate; 16. Second notch; 21. Second scissors head; 22. Second splash-proof box; 23. Third notch; 24. Second blade; 25. Second limiting plate; 26. Fourth notch; 41. Connecting slot; 42. Movable hole; 43. Telescopic spring; 44. Moving seat; 45. Limiting protrusion; 46. Externally threaded seat; 47. Hexagonal groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0024] Example: Figure 1-7 As shown, the utility model provides disposable scissors, including a first scissors handle 1 and a second scissors handle 2, a rotating shaft 3 is rotatably installed at the intersection of the first scissors handle 1 and the second scissors handle 2, one end of the first scissors handle 1 is detachably installed with a first scissors head 11, the upper and lower surfaces of the first scissors head 11 are fixedly connected to a first splash-proof box 12, the middle part of one side of the two first splash-proof boxes 12 is provided with a first notch 13, the first notch 13 is semicircular, one side of the first scissors head 11 is fixedly connected to a first blade 14, one end of the second scissors handle 2 is detachably installed with a second scissors head 21, the upper and lower surfaces of the second scissors head 21 are fixedly connected to the second splash-proof box 2 2. A third notch 23 is provided in the middle of one side of each of the two second splash-proof boxes 22. The third notch 23 is semicircular, and the diameter of the third notch 23 is the same as the diameter of the first notch 13. A second blade 24 is fixedly connected to one side of the second splash-proof box 22. By arranging the first splash-proof box 12 and the second splash-proof box 22, when the first blade 14 and the second blade 24 are engaged, the first splash-proof box 12 and the second splash-proof box 22 can prevent blood from splashing. By arranging the first notch 13 and the third notch 23, the first notch 13 and the third notch 23 can position the blood bag sample catheter, making it convenient for the first blade 14 and the second blade 24 to engage and cut the blood bag sample catheter.

[0025] A first limiting plate 15 is fixedly connected to one side of the first scissor head 11. The first limiting plate 15 is located above the first blade 14. A second notch 16 is opened in the middle of one side of the first limiting plate 15. The second notch 16 is semicircular, and the diameter of the second notch 16 is larger than the diameter of the first notch 13.

[0026] A second limiting plate 25 is fixedly connected to one side of the second scissor head 21, and the second limiting plate 25 is located below the second blade 24. A fourth slot 26 is opened in the middle of one side of the second limiting plate 25. The fourth slot 26 is semicircular, and the diameter of the fourth slot 26 is the same as the diameter of the second slot 16.

[0027] One end of the first scissors handle 1 and the second scissors handle 2 is provided with a plug-in slot 41, one end of the first scissors head 11 is movably plugged into the inner wall of one of the plug-in slots 41, and one end of the second scissors head 21 is movably plugged into the inner wall of the other plug-in slot 41. The side walls of the two plug-in slots 41 are provided with two movable holes 42, and the interiors of the four movable holes 42 are provided with telescopic springs 43. One end of the four telescopic springs 43 is fixedly connected to a movable seat 44, and one end of the four movable seats 44 is fixedly connected to a limiting protrusion 45, which is semicircular. shape, wherein two adjacent limiting protrusions 45 are in movable contact with one side of one end of the first scissors head 11, and two adjacent limiting protrusions 45 are in movable contact with one side of one end of the second scissors head 21. By arranging the telescopic spring 43, the movable seat 44 and the limiting protrusion 45, when the first scissors head 11 or the second scissors head 21 is inserted into the interior of the plug-in slot 41, the telescopic spring 43 can limit and fix the first scissors head 11 or the second scissors head 21 through the limiting protrusion 45, thereby facilitating the disassembly and assembly of the first scissors head 11 or the second scissors head 21 to achieve replacement.

[0028] One end of each of the four movable holes 42 is threadedly mounted with an externally threaded seat 46, one end of one of the externally threaded seats 46 is in movably contact with the other end of a telescopic spring 43. By providing the externally threaded seat 46, when the externally threaded seat 46 is internally threadedly rotated in the movable hole 42, the telescopic spring 43 can be reset, thereby causing the limiting protrusion 45 to move away from the first scissor head 11 or the second scissor head 21.

[0029] The other ends of the four external thread seats 46 are each provided with a hexagonal groove 47 . The provision of the hexagonal groove 47 makes it easier for medical personnel to use a wrench to rotate the external thread seats 46 .

[0030] Working principle: Before testing blood products in a transfusion medicine laboratory, when using a blood bag sample catheter and a blood spot card to take blood samples with sterile scissors, the medical staff first holds the first scissors handle 1 and the second scissors handle 2, and then vertically inserts the first scissors head 11 and the second scissors head 21 into the two plug-in slots 41 respectively. The first scissors handle 1 corresponds to the first scissors head 11, and the second scissors handle 2 corresponds to the second scissors head 21. The first scissors head 11 and the second scissors head 21 are limited and fixed by multiple telescopic springs 43, a movable seat 44 and a limiting protrusion 45;

[0031] Next, align the blood bag sample catheter with the first blade 14 and the second blade 24. At this time, the blood bag sample catheter is located between the first notch 13 and the third notch 23. Then, press the first scissors handle 1 and the second scissors handle 2 to drive the first blade 14 and the second blade 24 to bite, cutting the blood bag catheter. The first splash-proof box 12 and the second splash-proof box 22 prevent blood from splashing.

[0032] After use, the first scissor head 11 and the second scissor head 21 can be rotated by rotating the hexagonal groove 47 to rotate the external thread seat 46. At this time, the telescopic spring 43 is reset and stretched, and the limiting protrusion 45 is pulled away from the first blade 14 and the second blade 24. The first scissor head 11 and the second scissor head 21 can be replaced. The operation is convenient and simple, and there is no need to clean, disinfect, or wipe after each use, which effectively improves the sampling efficiency.

[0033] At the same time, the first blade 14 and the second blade 24 are arranged in the first splash-proof box 12 and the second splash-proof box 22. Part of the blades of the first blade 14 and the second blade 24 are exposed for shearing, thereby minimizing the risk of injury to the operator by the sharp blades. When the first blade 14 and the second blade 24 are engaged, the first splash-proof box 12 and the second splash-proof box 22 prevent blood samples from splashing, thereby ensuring safe and effective sampling.

[0034] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A pair of disposable scissors comprising a first scissor handle (1) and a second scissor handle (2), characterized in that: A rotating shaft (3) is rotatably mounted at the junction of the first scissors handle (1) and the second scissors handle (2); a first scissors head (11) is detachably mounted on one end of the first scissors handle (1); the upper and lower surfaces of the first scissors head (11) are fixedly connected to a first splash-proof box (12); a first notch (13) is provided in the middle of one side of the two first splash-proof boxes (12); the first notch (13) is semicircular; a first blade (14) is fixedly connected to one side of the first scissors head (11); a second scissors head (21) is detachably mounted on one end of the second scissors handle (2); the upper and lower surfaces of the second scissors head (21) are fixedly connected to a second splash-proof box (22); a third notch (23) is provided in the middle of one side of the two second splash-proof boxes (22); the third notch (23) is semicircular; the diameter of the third notch (23) is the same as that of the first notch (13); a second blade (24) is fixedly connected to one side of the second splash-proof box (22).

2. The disposable scissors according to claim 1, characterized in that: A first limiting plate (15) is fixedly connected to one side of the first scissor head (11), and the first limiting plate (15) is located above the first blade (14). A second notch (16) is provided in the middle of one side of the first limiting plate (15), and the second notch (16) is semicircular, and the diameter of the second notch (16) is larger than the diameter of the first notch (13).

3. The disposable scissors according to claim 2, characterized in that: A second limiting plate (25) is fixedly connected to one side of the second scissor head (21), and the second limiting plate (25) is located below the second blade (24). A fourth notch (26) is provided in the middle of one side of the second limiting plate (25), and the fourth notch (26) is semicircular, and the diameter of the fourth notch (26) is the same as the diameter of the second notch (16).

4. The disposable scissors according to claim 1, characterized in that: One end of each of the first scissor handles (1) and the second scissor handles (2) is provided with a plug-in slot (41), one end of the first scissor head (11) is movably plugged into the inner wall of one of the plug-in slots (41), and one end of the second scissor head (21) is movably plugged into the inner wall of the other plug-in slot (41), and the side walls of the two plug-in slots (41) are provided with two movable holes (42), and four movable holes (42) are provided with telescopic springs (43) inside. One end of each of the four telescopic springs (43) is fixedly connected to a movable seat (44), and one end of each of the four movable seats (44) is fixedly connected to a limiting protrusion (45), and the limiting protrusion (45) is semicircular, wherein two adjacent limiting protrusions (45) are in movably contact with one side of one end of the first scissor head (11), and another two adjacent limiting protrusions (45) are in movably contact with one side of one end of the second scissor head (21).

5. The disposable scissors according to claim 4, characterized in that: One end of each of the four movable holes (42) is threadedly mounted with an external thread seat (46), and one end of one of the external thread seats (46) is in movable contact with the other end of a telescopic spring (43).

6. The disposable scissors according to claim 5, characterized in that: The other ends of the four external thread seats (46) are each provided with a hexagonal groove (47).

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