Negative pressure type specimen collection device for medical care

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a negative pressure type specimen collection device for medical care. Comprising a shell; the rotating shaft is rotationally connected to the shell, and a spring is arranged between the rotating shaft and the shell; the carrying plate is fixedly connected to the rotating shaft, a plurality of carrying grooves are formed in the carrying plate, and negative pressure collecting pipes are arranged in the carrying grooves; and the fixing rod is fixedly connected to the shell, and the fixing rod is connected with a loading plate in a sliding mode. A plurality of negative pressure collection tubes are placed on the loading plate, and the loading plate is used for driving the connector to be inserted and pulled, so that quick connection of the connector and the negative pressure collection tubes is realized, simultaneous operation by two hands of medical personnel is avoided, a needle in a vein of a patient is prevented from shaking, and the safety of the patient is ensured; meanwhile, after the connector is separated from the negative pressure collecting tube, the negative pressure collecting tube is automatically replaced by a new negative pressure collecting tube, so that the negative pressure collecting tube is rapidly replaced, and the blood sampling efficiency is improved.

Description

Technical Field

[0001] The present invention complies with the technical field of medical instruments, and in particular relates to a negative pressure specimen collection device for medical care. Background Art

[0002] Negative pressure specimen collection device is a medical device that uses the vacuum principle to collect biological samples (such as blood, bone marrow, urine, etc.). This type of device creates negative pressure (lower than atmospheric pressure) in the collection container in advance, so that when the needle is inserted into the patient's body, the sample can automatically flow into the collection container without the need for additional pressure. This design not only improves sampling efficiency, but also reduces operational complexity and potential infection risks.

[0003] When using this device to draw blood, the medical staff first inserts the needle into the patient's vein, and then connects the connector to the collection tube. When it is necessary to collect several tubes of blood, the medical staff will release the hand holding the needle, and then use both hands to pull out and plug the connector and the collection tube to replace the collection tube. This replacement method will cause the needle inserted into the patient's vein to have the risk of needle movement, and even cause secondary damage to the patient's vein. In addition, the existing collection device cannot realize automatic replacement of the collection tube, resulting in low efficiency of blood collection. When there are many patients, it cannot meet the need for rapid blood collection. Summary of the invention

[0004] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a negative pressure specimen collection device for medical care.

[0005] The technical solution is as follows: A negative pressure specimen collection device for medical care, comprising: a shell; a rotating shaft, rotatably connected to the shell and passing through both sides of the shell, a spring is arranged between the rotating shaft and the shell; a loading plate, fixedly connected to the rotating shaft, the loading plate is provided with a plurality of loading slots, and the loading slots are provided with negative pressure collection tubes; a fixing rod, fixedly connected to the outside of the shell, the fixing rod is slidably connected with a loading plate, a first tension spring is arranged between the loading plate and the shell, the loading plate is provided with a first card slot, and the negative pressure collection tube is quickly and smoothly inserted into the loading plate auxiliary connector through the loading plate.

[0006] Further description, it also includes: an unloading block, which is fixed in the shell, and the unloading block is used to squeeze the negative pressure collection tube to separate it from the fixing rod.

[0007] Further description, it also includes: a sliding rod, the shell is provided with a fixed seat, the sliding rod is slidably connected to the fixed seat on the shell; a push tube seat is fixed to the sliding rod, and a first spring is provided between the push tube seat and the fixed seat on the shell.

[0008] It is further explained that the tube push seat is provided with a groove for positioning the negative pressure collection tube.

[0009] Further description, it also includes: a connecting member, fixedly connected to the sliding rod; a transmission member, slidably connected to the connecting member, and the transmission member and the rotating shaft are transmitted through friction when in contact; a tension spring telescopic rod, fixedly connected to the outer side of the shell, and the telescopic end of the tension spring telescopic rod is slidably connected to the transmission member.

[0010] It is further explained that the elastic coefficient of the first tension spring between the loading plate and the housing is greater than the elastic coefficient of the tension spring telescopic rod.

[0011] Further description, it also includes: an extrusion rod, which is fixed to the loading plate, and the extrusion rod is used to squeeze the transmission member.

[0012] Further description, it also includes: a limiting column, which is slidably connected to the loading plate, and a second spring is arranged between the two, and the fixing rod is provided with a second slot, and the limiting column is used to limit the loading plate.

[0013] Further description, it also includes: a mounting seat, fixedly connected to the outside of the shell; a limiting rod, slidably connected to the mounting seat, the limiting rod is fixedly connected to a first fixing ring, a second tension spring is arranged between the first fixing ring and the mounting seat, and the rotating shaft is provided with a plurality of limiting grooves.

[0014] To further illustrate, the plurality of limit grooves on the rotating shaft correspond one-to-one to the plurality of loading grooves on the loading plate.

[0015] Further description, it also includes: a magnet fixedly connected to the limit rod, the loading plate is a magnetic material, the magnet is used to make the loading plate drive the limit rod to move; a second fixing ring is fixedly connected to the limit rod, used to stop the limit rod from moving.

[0016] The beneficial effects of the present invention are as follows: 1. The present invention places a plurality of negative pressure collection tubes on a loading plate, and utilizes the loading plate to drive the connector to be plugged in and out, thereby realizing a quick connection between the connector and the negative pressure collection tube, and avoiding the medical staff from operating with both hands at the same time, preventing the needle in the patient's vein from shaking, thereby ensuring the patient's safety. At the same time, after the connector is separated from the negative pressure collection tube, a new negative pressure collection tube is automatically replaced, thereby realizing a quick replacement of the negative pressure collection tube and improving the blood collection efficiency.

[0017] 2. When the rotating shaft rotates, the tube pusher seat is driven to move, so that the tube pusher seat pushes the new negative pressure collection tube into the loading slot of the loading plate, thereby realizing automatic loading of the negative pressure collection tube and improving the blood collection efficiency.

[0018] 3. The rotating shaft is clamped by the limit rod to ensure that when the loading plate drives the negative pressure collection tube to rotate, the negative pressure collection tube can be directly opposite to the first slot on the loading plate, so that the connector can be accurately inserted into the negative pressure collection tube when it is translated, thereby ensuring the working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the carrier plate and the negative pressure collection tube of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the loading plate and the unloading block of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the loading plate, negative pressure collection tube and unloading block of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the limiting rod and the first fixing ring of the present invention.

[0020] In the accompanying drawings: 1: shell, 101: inlet, 102: switching chamber, 103: outlet, 2: rotating shaft, 3: loading plate, 4: negative pressure collection tube, 5: fixing rod, 6: loading plate, 61: extrusion rod, 7: unloading block, 8: sliding rod, 9: tube pushing seat, 10: connecting part, 11: transmission part, 12: tension spring telescopic rod, 13: limiting column, 14: mounting seat, 15: limiting rod, 16: first fixing ring, 17: magnet, 18: second fixing ring. DETAILED DESCRIPTION

[0021] The present invention will now be described more fully below with reference to the accompanying drawings, in which currently preferred embodiments of the present invention are shown. However, the present invention may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and these embodiments fully convey the scope of the present invention to the skilled person.

[0022] A negative pressure specimen collection device for medical care, such as Figure 1-Figure 3 As shown, it includes: a shell 1; a rotating shaft 2, which is rotatably connected to the shell 1 and passes through both sides of the shell 1, and a spring is arranged between the rotating shaft 2 and the shell 1; a loading plate 3, which is fixed to the rotating shaft 2, and the loading plate 3 is provided with a plurality of loading slots, and the loading slots are provided with negative pressure collection tubes 4; a fixing rod 5, which is fixed to the outside of the shell 1, and the fixing rod 5 is slidably connected with a loading plate 6, and a first tension spring is arranged between the loading plate 6 and the shell 1, and the loading plate 6 is provided with a first card slot, and the loading plate 6 assists the connector to be quickly and smoothly inserted into the negative pressure collection tube 4.

[0023] In the above scheme, it is intended to achieve a quick and stable connection between the negative pressure collection tube 4 and the connector. The housing 1 is provided with an inlet 101, a switching chamber 102 and an outlet 103. A new negative pressure collection tube 4 is placed in the inlet 101 to wait for use. The negative pressure collection tube 4 is used for blood collection and replacement in the switching chamber 102. The negative pressure collection tube 4 after blood collection is discharged from the outlet 103. The edge of the loading slot of the loading plate 3 can be provided with an elastic protrusion to clamp the negative pressure collection tube 4 and keep the negative pressure collection tube 4 stable. The first card slot on the loading plate 6 is used to install the connector.

[0024] Further, such as Figure 3 and Figure 4 As shown, it also includes: an unloading block 7, which is fixed in the shell 1, and the unloading block 7 is used to squeeze the negative pressure collection tube 4 to separate it from the fixing rod 5.

[0025] In the above scheme, the purpose is to realize automatic disassembly of the negative pressure collection tube 4. The outer side of the unloading block 7 is arc-shaped and gradually approaches the edge of the loading plate 3 from top to bottom to realize the disassembly of the negative pressure collection tube 4.

[0026] Further, such as Figure 1 and Figure 2 As shown, it also includes: a sliding rod 8, the housing 1 is provided with a fixed seat, the sliding rod 8 is slidably connected to the fixed seat on the housing 1; a tube pusher seat 9 is fixed to the sliding rod 8, and a first spring is provided between the tube pusher seat 9 and the fixed seat on the housing 1. The tube pusher seat 9 is provided with a groove for positioning the negative pressure collection tube 4.

[0027] In the above scheme, the automatic installation of the negative pressure collection tube 4 is realized. The tube pusher seat 9 is located on the side of the sliding rod 8 close to the rotating shaft 2, and the shape of the groove on the tube pusher seat 9 matches the shape of the outer side of the negative pressure collection tube 4, so as to prevent the tube pusher seat 9 from being unable to clamp the negative pressure collection tube 4 when pushing the negative pressure collection tube 4 to move, thereby preventing the negative pressure collection tube 4 from being unable to enter the loading slot of the loading plate 3.

[0028] Further, such as Figure 1 and Figure 2 As shown, it also includes: a connecting member 10, fixedly connected to the sliding rod 8; a transmission member 11, slidably connected to the connecting member 10, and the transmission member 11 and the rotating shaft 2 are transmitted through friction when in contact; a tension spring telescopic rod 12, fixedly connected to the outer side of the shell 1, and the telescopic end of the tension spring telescopic rod 12 is slidably connected to the transmission member 11.

[0029] In the above scheme, the transmission between the sliding rod 8 and the rotating shaft 2 is realized. The connecting member 10 is located on the side of the sliding rod 8 away from the push tube seat 9, the transmission member 11 is L-shaped, and the side of the transmission member 11 close to the rotating shaft 2 is provided with friction material, and the side of the rotating shaft 2 close to the transmission member 11 is also provided with friction material, which is used to increase the friction between the two and ensure the normal transmission. The tension spring telescopic rod 12 has a tension spring inside, which can automatically shrink after being stretched, and the tension spring telescopic rod 12 is initially in a stretched state.

[0030] Further, such as Figure 1 and Figure 2 As shown, it also includes: an extrusion rod 61, which is fixed to the loading plate 6, and the extrusion rod 61 is used to squeeze the transmission member 11. The elastic coefficient of the first tension spring between the loading plate 6 and the housing 1 is greater than the elastic coefficient of the tension spring telescopic rod 12.

[0031] In the above scheme, the linkage between the loading plate 6 and the rotating shaft 2 is realized. An inclined portion is provided on one side of the extrusion rod 61 close to the transmission member 11, and the inclined portion of the extrusion rod 61 is used to squeeze the transmission member 11. When the extrusion rod 61 moves left and right, the transmission member 11 moves up and down. When the loading plate 6 is reset under the action of the adjacent first tension spring, the tension of the tension spring telescopic rod 12 can be overcome to move the transmission member 11 downward.

[0032] Further, such as Figure 5 As shown, it also includes: a limiting column 13, which is slidably connected to the loading plate 6, and a second spring is arranged between the two. The fixing rod 5 is provided with a second slot, and the limiting column 13 is used to limit the loading plate 6.

[0033] In the above scheme, the position of the loading plate 6 is temporarily fixed. The limiting column 13 is composed of a cylinder and a hemisphere, and the second spring adjacent to the limiting column 13 is initially in a compressed state. When the limiting column 13 is aligned with the second slot of the fixing rod 5, the limiting column 13 is inserted into it under the action of the adjacent second spring.

[0034] Further, such as Figure 1 and Figure 5 As shown, it also includes: a mounting seat 14, fixedly connected to the outside of the housing 1; a limiting rod 15, slidably connected to the mounting seat 14, a first fixing ring 16 is fixedly connected to the limiting rod 15, a second tension spring is arranged between the first fixing ring 16 and the mounting seat 14, and a plurality of limiting grooves are arranged on the rotating shaft 2. The plurality of limiting grooves on the rotating shaft 2 correspond to the plurality of loading grooves on the loading plate 3 one by one.

[0035] In the above scheme, the purpose is to lock the rotating shaft 2. The second tension spring between the first fixing ring 16 and the mounting seat 14 is used to insert the limit rod 15 into the limit groove on the rotating shaft 2, so that the rotating shaft 2 cannot rotate. A damper is provided between the rotating shaft 2 and the housing 1 to slow down the speed of the rotating shaft 2 driven by the spring therebetween, so as to facilitate the limit rod 15 to be inserted into the limit groove on the rotating shaft 2. The number of the limit grooves on the rotating shaft 2 is equal to the number of the loading slots on the loading plate 3, and they correspond to each other.

[0036] Further, such as Figure 5 As shown, it also includes: a magnet 17, which is fixedly connected to the limiting rod 15, and the loading plate 6 is a magnetic material. The magnet 17 is used to enable the loading plate 6 to drive the limiting rod 15 to move; a second fixing ring 18, which is fixedly connected to the limiting rod 15 and is used to stop the limiting rod 15 from moving.

[0037] In the above scheme, the transmission and separation between the limit rod 15 and the loading plate 6 are realized. When the loading plate 6 moves to contact with the magnet 17, the transmission is performed between the two through magnetism, and when the limit rod 15 cannot move, the loading plate 6 can still move normally, so that the loading plate 6 moves to a certain distance and separates from the magnet 17, so that the limit rod 15 can re-limit the rotating shaft 2 in time.

[0038] Working process: When using this device, first fix the device, then pull the loading plate 6 to the left, the loading plate 6 drives the magnet 17 to move through magnetism, the magnet 17 drives the limit rod 15 to move, the limit rod 15 drives the first fixed ring 16 to move, the first fixed ring 16 stretches the adjacent second tension spring, the limit rod 15 is separated from the limit groove on the rotating shaft 2, and then the rotating shaft 2 is rotated counterclockwise from the right view direction to store force between the rotating shaft 2 and the shell 1. After the force is stored, continue to pull the loading plate 6 to the left, and the loading plate 6 drives the limit column 13 to move.

[0039] When the limiting column 13 is aligned with the second slot of the fixing rod 5, the limiting column 13 will be inserted therein under the action of the adjacent second spring. Before this, the second fixing ring 18 is blocked by the mounting seat 14 to stop the limiting rod 15 from moving, and the magnet 17 is separated from the loading plate 6. After the two are separated, the first fixing ring 16 drives the limiting rod 15 to reset under the action of the adjacent second tension spring, and limits the rotating shaft 2. Then, several negative pressure collection tubes 4 are placed in the inlet 101, and then the connector of the needle tube is fixed in the first slot of the loading plate 6, and then the needle is inserted into the patient's vein, and then the loading plate 6 is reciprocated several times to make the negative pressure collection tube 4 enter the loading slot of the loading plate 3 and move to align with the first slot of the loading plate 6, and the loading plate 6 drives the connector to move to the right and insert it into the negative pressure collection tube 4, thereby realizing blood collection from the patient.

[0040] During the reciprocating movement of the loading plate 6, the loading plate 6 first drives the extrusion rod 61 to move to the left. When the extrusion rod 61 moves, the tension spring telescopic rod 12 pulls the transmission member 11 to move upward. When the transmission member 11 contacts the rotating shaft 2, the limit rod 15 releases the limit on the rotating shaft 2. At this time, the rotating shaft 2 rotates clockwise from the right view direction under the action of the adjacent spring. The rotating shaft 2 drives the transmission member 11 to move forward. The transmission member 11 drives the sliding rod 8 to move through the connecting member 10. The sliding rod 8 drives the push tube seat 9 to move and compresses the first spring adjacent to it. At this time, the first spring located in the inlet 101 The negative pressure collection tube 4 falls to the right side of the tube pushing seat 9, and then the magnet 17 separates from the loading plate 6, and the limit rod 15 limits the rotating shaft 2 again, and then the loading plate 6 is pushed to the right, and the transmission member 11 of the loading plate 6 separates from the rotating shaft 2. At this time, the tube pushing seat 9 moves backward under the action of the adjacent first spring, and pushes the negative pressure collection tube 4 into the loading slot of the loading plate 3. The installation and switching of the negative pressure collection tube 4 are completed. When the negative pressure collection tube 4 has completed blood collection, the loading plate 3 drives the negative pressure collection tube 4 to rotate, and the negative pressure collection tube 4 is squeezed by the unloading block 7 and detached from the loading slot of the loading plate 3.

[0041] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A negative pressure specimen collection device for medical care, characterized in that: Included are: Housing (1); A rotating shaft (2) is rotatably connected to the housing (1) and penetrates two sides of the housing (1); a spring is provided between the rotating shaft (2) and the housing (1); A loading plate (3) is fixedly connected to the rotating shaft (2), the loading plate (3) being provided with a plurality of loading slots, and the loading slots being provided with negative pressure collection tubes (4); A fixing rod (5) is fixedly connected to the outside of the shell (1); the fixing rod (5) is slidably connected to a loading plate (6); a first tension spring is provided between the loading plate (6) and the shell (1); the loading plate (6) is provided with a first slot, and the loading plate (6) assists the connector in being quickly and smoothly inserted into the negative pressure collection tube (4).

2. A negative pressure specimen collection device for medical care according to claim 1, characterized in that: Also included are: An unloading block (7) is fixedly connected inside the housing (1), and the unloading block (7) is used to squeeze the negative pressure collection tube (4) to separate it from the fixing rod (5).

3. A negative pressure specimen collection device for medical care according to claim 1, characterized in that: Also included are: A sliding rod (8), the housing (1) being provided with a fixing seat, the sliding rod (8) being slidably connected to the fixing seat on the housing (1); The tube pusher seat (9) is fixedly connected to the sliding rod (8), and a first spring is arranged between the tube pusher seat (9) and a fixed seat on the housing (1).

4. A negative pressure specimen collection device for medical care according to claim 3, characterized in that: The tube pusher seat (9) is provided with a groove for positioning the negative pressure collection tube (4).

5. The negative pressure specimen collection device for medical care according to claim 3, characterized in that: Also included are: A connecting member (10) fixedly connected to the sliding rod (8); A transmission member (11) is slidably connected to the connection member (10), and the transmission member (11) and the rotating shaft (2) are transmitted through friction when in contact; A tension spring telescopic rod (12) is fixedly connected to the outer side of the housing (1), and a telescopic end of the tension spring telescopic rod (12) is slidably connected to the transmission member (11).

6. A negative pressure specimen collection device for medical care according to claim 5, characterized in that: The elastic coefficient of the first tension spring between the loading plate (6) and the housing (1) is greater than the elastic coefficient of the tension spring telescopic rod (12).

7. The negative pressure specimen collection device for medical care according to claim 5, characterized in that: Also included are: An extrusion rod (61) is fixedly connected to the loading plate (6), and the extrusion rod (61) is used to extrude the transmission member (11).

8. The negative pressure specimen collection device for medical care according to claim 1, characterized in that: Also included are: The limiting column (13) is slidably connected to the loading plate (6), and a second spring is provided between the two. The fixing rod (5) is provided with a second slot. The limiting column (13) is used to limit the loading plate (6).

9. The negative pressure specimen collection device for medical care according to claim 1, characterized in that: Also included are: A mounting seat (14) fixedly connected to the outside of the housing (1); A limiting rod (15) is slidably connected to the mounting seat (14); the limiting rod (15) is fixedly connected to a first fixing ring (16); a second tension spring is provided between the first fixing ring (16) and the mounting seat (14); and the rotating shaft (2) is provided with a plurality of limiting grooves.

10. The negative pressure specimen collection device for medical care according to claim 9, characterized in that: The plurality of limit grooves on the rotating shaft (2) correspond one to one with the plurality of object loading grooves on the object loading plate (3).

11. The negative pressure specimen collection device for medical care according to claim 9, characterized in that: Also included are: A magnet (17) is fixedly connected to the limiting rod (15); the loading plate (6) is made of magnetic material; the magnet (17) is used to enable the loading plate (6) to drive the limiting rod (15) to move; The second fixing ring (18) is fixedly connected to the limiting rod (15) and is used to stop the limiting rod (15) from moving.

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