Blood specimen sending apparatus for ward and sending method thereof

Abstract

A blood sample sending device for a ward and a sending method thereof, the sending device comprising a blood collection tube main transmission pipeline, a blood collection tube cache delivery device and a blood collection tube anti-hemolysis buffer device, the blood collection tube main transmission pipeline is arranged in the vertical direction and extends along the vertical direction of multiple wards arranged on a hospital floor; the blood collection tube cache delivery device is provided with multiple devices, which are connected with the blood collection tube main transmission pipeline and correspond to the multiple wards one by one, and the blood collection tube anti-hemolysis buffer device is arranged at the lower end of the blood collection tube main transmission pipeline to buffer the transmission speed of the incoming blood collection tube; the blood collection tube main transmission pipeline cooperates with the multiple blood collection tube cache delivery devices to effectively collect and transmit the blood collection tubes of the wards on each floor, and the blood collection tube cache delivery device is arranged on the blood collection tube main transmission pipeline, so that the sending device has a small size and can be better used in the crowded environment of the ward nurse station, can better save costs and meet the use requirements of the ward nurse station.

Description

Technical Field

[0001] This invention relates to the field of blood sample processing, specifically to a blood sample sending device and method for use in wards. Background Technology

[0002] Hospital nurses in the inpatient wards need to draw blood from some inpatients daily using vacuum blood collection tubes for testing. These tubes need to be transported promptly to the various testing instruments in the laboratory. Initially, this was done manually. Manual transport cannot guarantee timely delivery of the tubes, is prone to errors, and may even lead to environmental pollution or biological hazards. Later, compressed air delivery equipment was developed, but currently available equipment is generally large and expensive, suitable only for scenarios like outpatient blood collection windows with high blood volume and urgent report generation, and not for the confined space of ward nurse stations. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a blood sample delivery device and delivery method for use in wards.

[0004] The present invention adopts the following technical solution:

[0005] A blood sample delivery device for use in wards includes a main transport pipeline for blood collection tubes, a blood collection tube buffer and delivery device, and a blood collection tube anti-hemolysis buffer device.

[0006] The main blood collection tube extends vertically, traversing multiple wards arranged vertically along the hospital floors.

[0007] The blood collection tube buffer and delivery device includes multiple units, each connected to the main blood collection tube transmission pipeline and corresponding to multiple wards. It includes an outer shell, a connecting pipe inside the outer shell connected to the main blood collection tube transmission pipeline, a delivery drum rotatably disposed inside the outer shell for receiving blood collection tubes, and a delivery mechanism disposed inside the outer shell below the delivery drum to transport the received blood collection tubes to the connecting pipe. The delivery drum has multiple receiving cavities distributed around its circumference for receiving blood collection tubes, and the outer shell has a delivery port that can be opposite to one of the receiving cavities.

[0008] The blood collection tube anti-hemolysis buffer device is installed at the lower end of the main transmission pipeline of the blood collection tube to buffer the transmission speed of the incoming blood collection tube. It includes a box, a buffer pipe installed in the box and connected to the main transmission pipeline of the blood collection tube, a gas inlet installed on the side of the buffer pipe and connected to the buffer pipe, a discharge port installed at the bottom of the box, a station conversion plate rotatably installed between the lower end of the buffer pipe and the discharge port, and a rotating mechanism installed in the box and connected to and driving the station conversion plate to rotate.

[0009] The main transmission pipeline of the blood collection tube is equipped with a first sensor for detecting whether a blood collection tube is passing by. The first sensor is located above the box.

[0010] Preferably, the blood collection tube anti-hemolysis buffer device further includes a buffer frame disposed in the housing, and the workstation conversion plate is rotatably disposed on the buffer frame, including the conversion plate body and two buffer chambers disposed opposite to the conversion plate body and opposite to the buffer pipe for receiving blood collection tubes; the buffer frame is provided with a second sensor and a third sensor that can detect whether there are blood collection tubes in the two buffer chambers respectively, and the third sensor is disposed above the discharge port.

[0011] Preferably, the rotating mechanism includes a rotating shaft rotatably mounted on a buffer frame and connected to a workstation conversion plate, a rotating motor mounted on the buffer frame, a rotating gear rotatably mounted on the buffer frame and connected to the output shaft of the rotating motor, and a transmission gear mounted on the outer periphery of the rotating shaft and meshing with the rotating gear.

[0012] Preferably, the blood collection tube buffer and dispensing device further includes a dispensing frame disposed in the housing for mounting the dispensing drum and a rotating mechanism disposed on the dispensing frame and connected to and driving the dispensing drum to rotate. The dispensing frame is provided with a fourth sensor opposite to the dispensing port for detecting whether there is a blood collection tube in the relative receiving cavity.

[0013] Preferably, the connecting pipe includes a first connecting section and a second connecting section arranged vertically opposite each other. The dispensing frame forms a feeding port that can communicate with the bottom of the receiving cavity. The dispensing mechanism includes a transition pipe arranged below the feeding port that can move horizontally between the first connecting section and the second connecting section, and a moving component arranged on the dispensing frame and connected to drive the transition pipe to move horizontally back and forth. The transition pipe receives the blood collection tubes entering from the feeding port and is provided with a fifth sensor for detecting whether there are blood collection tubes inside. The moving component moves the transition pipe containing the blood collection tubes between the first connecting section and the second connecting section, so that the blood collection tubes enter the main transmission pipe of the blood collection tubes through the second connecting section.

[0014] Preferably, the moving component includes a moving cylinder disposed on the delivery rack and connected to the transition tube, a guide rail disposed on the delivery rack, a guide slider movably disposed on the guide rail, and a connecting block disposed on the outer periphery of the transition tube and connected to the guide slider.

[0015] Preferably, the feeding rack is provided with a guide groove that guides the transition tube to move back and forth and communicates with the feeding port. The feeding port is connected to the guide groove. The transition tube includes a transition tube body and a baffle plate disposed on the outer periphery of the transition tube body. When the transition tube body moves between the first connecting section and the second connecting section, the baffle plate is placed in the feeding port.

[0016] Preferably, the rotating mechanism includes a rotating shaft connected to the dispensing drum, a rotating motor mounted on the dispensing frame, and a transmission assembly connecting the rotating motor and the rotating shaft.

[0017] Preferably, the blood collection tube buffer dispensing device further includes a barcode scanner mounted on its outer casing.

[0018] A method for sending blood samples in a ward, using any of the sending devices described above, specifically includes the following steps:

[0019] Step 1: Medical staff in each ward will send one or more blood collection tubes containing blood samples into the delivery drum one by one through the delivery port. The delivery drum will rotate continuously so that multiple receiving chambers will receive the delivered blood collection tubes one by one.

[0020] Step 2: When the delivery drum rotates to the designated position, the blood collection tube in the receiving chamber falls into the delivery mechanism under the action of gravity. The delivery mechanism receives the incoming blood collection tube and transports it to the connecting pipe, so that the blood collection tube enters the main transmission pipeline of the blood collection tube. When the blood collection tube enters the main transmission pipeline of the blood collection tube, the buffer gas is controlled to be input into the buffer pipeline through the gas inlet, and the pressure of the buffer gas is adjusted so that the blood collection tube falling in the main transmission pipeline of the blood collection tube maintains a uniform speed and a straight descent.

[0021] Step 3: The blood collection tube continues to fall in the main transmission pipeline until the first sensor detects that a blood collection tube has passed by. The pressure of the buffer gas is adjusted so that the reverse thrust generated by the buffer gas is greater than the weight of the blood collection tube, so that the speed of the falling blood collection tube gradually decreases. When the bottom of the blood collection tube is opposite to the gas inlet, the speed of the blood collection tube is 0. At this time, the input of the buffer gas is stopped, and the blood collection tube enters the station conversion plate by its own gravity.

[0022] Step 4: The rotating mechanism drives the station conversion plate to rotate, so that the blood collection tube in the station conversion plate is aligned with the discharge port, so that the blood collection tube is transported to the next equipment through the discharge port.

[0023] As can be seen from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are as follows: By defining the structure of the blood sample delivery device, the present application uses a main blood collection tube transmission pipeline in conjunction with multiple blood collection tube buffer delivery devices to effectively collect and deliver blood collection tubes from each ward. Moreover, the blood collection tube buffer delivery devices are located on the main blood collection tube transmission pipeline, making the delivery device compact, better utilizing the crowded environment of the ward nurse station, and also better saving costs while meeting the usage needs of the ward nurse station. At the same time, a blood collection tube anti-hemolysis buffer device is set up to slow down the blood collection tubes in the main blood collection tube transmission pipeline, so that they can smoothly enter the next device and prevent excessive speed impact, which could cause hemolysis of the blood in the blood collection tube. Attached Figure Description

[0024] Figure 1 A schematic diagram of the blood sample delivery equipment;

[0025] Figure 2 This is a schematic diagram of the blood collection tube buffer delivery device;

[0026] Figure 3 Schematic diagram of part of the blood collection tube buffer delivery device Figure 1 ;

[0027] Figure 4 Schematic diagram of part of the blood collection tube buffer delivery device Figure 2 ;

[0028] Figure 5 A schematic diagram of the anti-hemolysis buffer device for blood collection tubes;

[0029] Figure 6 Schematic diagram of part of the anti-hemolysis buffer device for blood collection tubes Figure 1 ;

[0030] Figure 7 Schematic diagram of part of the anti-hemolysis buffer device for blood collection tubes Figure 2 ;

[0031] In the diagram, 1-Main transmission pipeline for blood collection tubes, 2-Blood collection tube buffer and delivery device, 3-Blood collection tube anti-hemolysis buffer device, 4-Outpatient multi-use equipment, 11-First sensor, 21-Outer shell, 211-Dispensing port, 22-Dispensing rack, 221-Feeding port, 222-Fourth sensor, 223-Guide groove, 23-Connecting pipeline, 231-First connecting section, 232-Second connecting section, 24-Dispensing rotary drum, 241-Receiving cavity, 25-Dispensing mechanism, 251-Transition pipe, 2511-Transition pipe body, 2512-Baffle plate, 252-Moving component, 253-Fifth sensor. 254-Moving cylinder, 255-Guide slide rail, 256-Guide slider, 257-Connecting block, 26-Rotating mechanism, 261-Rotating shaft, 262-Rotating motor, 263-Transmission assembly, 27-Code scanner, 31-Box, 32-Buffer frame, 321-Second sensor, 322-Third sensor, 33-Buffer pipe, 34-Gas inlet, 35-Discharge pipe, 36-Station conversion plate, 361-Conversion plate body, 362-Buffer cavity, 37-Rotating mechanism, 371-Rotating shaft, 372-Rotating motor, 373-Rotating gear, 374-Transmission gear. Detailed Implementation

[0032] The present invention will be further described below through specific embodiments.

[0033] Reference Figures 1 to 7As shown, a blood sample delivery device for wards includes a main transmission pipeline for blood collection tubes 1, a blood collection tube buffer delivery device 2, a blood collection tube anti-hemolysis buffer device 3, and an outpatient multi-dispensing device 4.

[0034] The main blood collection tube transmission pipeline 1 extends vertically, traversing multiple wards arranged vertically along the hospital floors. The hospital ward scenario has the following characteristics: each floor's nurse stations are arranged vertically with a certain layout pattern. Therefore, a main blood collection tube transmission pipeline 1 is installed vertically to receive blood collection tubes collected from each ward's nurse stations. Specifically, the main blood collection tube transmission pipeline 1 is equipped with a first sensor 11 for detecting whether a blood collection tube is passing through. The first sensor 11 is located above the blood collection tube anti-hemolysis buffer device 3. Furthermore, the sensor used in this application can be a laser sensor.

[0035] The blood collection tube buffer delivery device 2 is provided in multiple units, each connected to the main blood collection tube transmission pipeline 1 and corresponding to one of the multiple wards. It includes an outer shell 21, a delivery rack 22 set in the outer shell 21, a connecting pipeline 23 set on the delivery rack 22 and connected to the main blood collection tube transmission pipeline 1, a delivery drum 24 rotatably set on the delivery rack 22 for receiving blood collection tubes, a delivery mechanism 25 set on the delivery rack 22 below the delivery drum 24 to transport the received blood collection tubes to the connecting pipeline 23, a rotation mechanism 26 set on the delivery rack 22 to connect to and drive the delivery drum 24 to rotate, and a barcode scanner 27 set on the outer shell 21.

[0036] The dispensing drum 24 has multiple receiving cavities 241 distributed circumferentially for receiving blood collection tubes. Correspondingly, the outer shell 21 is provided with a dispensing port 211 that is opposite to a receiving cavity 241 and a control screen (not shown in the figure). The dispensing rack 22 has a feeding port 221 that is connected to the bottom of the receiving cavity 241 and a fourth sensor 222 opposite to the feeding port 21 for detecting whether there is a blood collection tube in the receiving cavity 241. When the dispensing drum 24 rotates to the point where the receiving cavity 241 is opposite to the feeding port 221, the blood collection tube in the receiving cavity 241 can be removed from the receiving cavity 241 through the feeding port 221. When the nurse dispenses the blood collection tube, she first activates the blood collection tube buffer dispensing device 2. The rotating mechanism 26 drives the dispensing drum 24 to rotate a receiving cavity 24 that has not collected a blood collection tube to be opposite to the dispensing port 211. Then the nurse dispenses the blood collection tube containing the blood sample. The blood collection tube is aligned with the barcode scanner 27 for information collection. After scanning, the blood collection tube is sent into the corresponding receiving cavity 241 through the delivery port 211. After the fourth sensor 222 detects that the blood collection tube has entered the receiving cavity 241, the rotating mechanism 26 controls the delivery drum 24 to rotate so that the next receiving cavity without a blood collection tube is aligned with the delivery port 211. The nurse then takes another blood collection tube, aligns it with the barcode scanner 27 for information collection, scans it, and then delivers it through the delivery port 211. The above operation is repeated until all the blood collection tubes in hand are delivered. Specifically, when the nurse has delivered all the blood collection tubes in hand, she needs to input the delivery completion command through the control screen so that even if the fourth sensor 222 does not detect the blood collection tube entering, the rotating mechanism 26 can continue to drive the delivery drum 24 to continue rotating, ensuring that the collected blood collection tubes can enter the delivery mechanism 25 one by one.

[0037] The connecting pipe 23 includes a first connecting section 231 and a second connecting section 232 arranged vertically opposite to each other on the dispensing rack 22. The upper end of the first connecting section 231 is connected to the main transmission pipe 1 of the blood collection tube, and the lower end of the second connecting section 232 is connected to the main transmission pipe 1 of the blood collection tube. Specifically, the distance between the lower end of the first connecting section 231 and the upper end of the second connecting section 232 is the same as the height of the blood collection tube.

[0038] The delivery mechanism 25 includes a transition tube 251 located below the feeding port 221 and horizontally movable between the first connecting section 231 and the second connecting section 232, and a moving component 252 connected to and driving the transition tube 251 to move horizontally back and forth on the delivery rack 22. The transition tube 251 receives blood collection tubes entering from the feeding port 221 and is equipped with a fifth sensor 253 for detecting whether there are blood collection tubes inside. The moving component 252 moves the transition tube 251 containing the blood collection tubes between the first connecting section 231 and the second connecting section 232, so that the blood collection tubes enter the main blood collection tube transmission pipeline 1 through the second connecting section 232. When the delivery drum 24 rotates until the receiving cavity 241 containing the blood collection tubes is opposite to the feeding port 221, the blood collection tubes fall into the transition tube 251 through the feeding port 221 by their own gravity. The fifth sensor detects the blood collection tubes. After the blood collection tube enters, the moving part 252 controls the transition tube 251 to move between the first connecting section 231 and the second connecting section 232, so that the blood collection tube enters the main transmission pipeline 1 of the blood collection tube through the second connecting section 232. Specifically, the delivery rack 22 is provided with a guide groove 223 that guides the transition tube 251 to move back and forth and communicates with the feeding port 221, and the feeding port 221 is connected to the guide groove 223. The transition tube 251 includes a transition tube body 2511 and a baffle plate 2512 disposed on the outer periphery of the transition tube body 2511. When the transition tube body 2511 moves between the first connecting section 231 and the second connecting section 232, the baffle plate 2512 is placed in the feeding port 221 to prevent the blood collection tube in the next receiving chamber from falling out through the feeding port 221 when the transition tube 251 moves between the first connecting section 231 and the second connecting section 232.

[0039] The movable component 252 includes a movable cylinder 254 disposed on the delivery rack 22 and connected to the transition tube 251, a guide rail 255 disposed on the delivery rack 22, a guide slider 256 movably disposed on the guide rail 255, and a connecting block 257 disposed on the outer periphery of the transition tube 251 and connected to the guide slider 256.

[0040] The rotating mechanism 26 includes a rotating shaft 261 connected to the dispensing drum 24, a rotating motor 262 mounted on the dispensing frame 22, and a transmission assembly 263 connecting the rotating motor 262 and the rotating shaft 261. The transmission assembly 263 is a common device in the field of mechanical equipment. It can be a gear transmission or a suitable transmission assembly can be selected according to the usage requirements. Its specific structure and working principle will not be described in detail here.

[0041] A blood collection tube anti-hemolysis buffer device 3 is installed at the lower end of the main blood collection tube transmission pipeline 1 to buffer the transmission speed of the incoming blood collection tubes. It includes a housing 31, a buffer frame 32 installed in the housing 31, a buffer pipe 33 installed in the housing 3 and connected to the main blood collection tube transmission pipeline 1, a gas inlet 34 inclined downwards and connected to the buffer pipe 33, a discharge port at the bottom of the housing 31, a discharge pipe 35 installed on the buffer frame 32 and connected to the discharge port, a station conversion plate 36 rotatably installed on the buffer frame 33 between the lower end of the buffer pipe 33 and the discharge pipe 35, and a rotating mechanism 37 installed in the housing 31 and connected to and driving the station conversion plate 36 to rotate. The buffer pipe 33 and the discharge pipe 35 are staggered vertically and respectively installed on both sides of the station conversion plate 36. Specifically... The first sensor 11 is positioned 1 meter above the gas inlet 34. This position can be adjusted according to the actual site conditions. When the first sensor 11 senses the passage of the blood collection tube, it adjusts the pressure of the buffer gas entering from the gas inlet 34 to slow down the falling blood collection tube. When the bottom of the blood collection tube reaches the gas inlet 34, its speed is 0 or close to 0, and the input of buffer gas into the buffer pipe 33 is stopped. At this time, the distance between the blood collection tube and the bottom of the workstation conversion plate 36 is about 150 mm, and there is no buffer gas input. The blood collection tube is in free fall and enters the workstation conversion plate 36. During this process, because the distance between the gas inlet 34 and the workstation conversion plate 36 is relatively close, the free fall of the blood collection tube will not have a large speed impact, and the blood in the blood collection tube will not experience hemolysis.

[0042] The workstation transfer plate 36 includes a transfer plate body 361 and two buffer chambers 362 oppositely arranged on the transfer plate body 361 and opposite to the buffer pipe 33 for receiving blood collection tubes. The buffer chambers 32 are equipped with a second sensor 321 and a third sensor 322 opposite to each other, capable of detecting whether there are blood collection tubes in the two buffer chambers 362. The second sensor 321 is located below the buffer pipe 33, and the third sensor 322 is located above the discharge pipe 35. When the second sensor 321 senses that a blood collection tube has entered the corresponding buffer chamber 362, the rotating mechanism 37 controls the workstation transfer plate 36 to rotate to the buffer chamber 36 containing the blood collection tube. 2. Opposite to the discharge pipe 35, the blood collection tube enters the discharge pipe 35 by its own gravity and leaves the blood collection tube anti-hemolysis collection device 3 at the discharge port; when the third sensor 322 detects that the blood collection tube has left the buffer chamber 362, the rotating mechanism 37 controls the station conversion disk 36 to rotate so that the buffer chamber 362 is opposite to the buffer pipe 33 and is in a standby state; specifically, when the blood collection tube is delivered, only one blood collection tube falls in the main transmission pipe 1 at the same time. Only when the third sensor 322 detects the blood collection tube will the blood collection tube buffer delivery device 2 continue to deliver the blood collection tube downwards to ensure the smooth delivery of the blood collection tube.

[0043] The rotating mechanism 37 includes a rotating shaft 371 rotatably mounted on the buffer frame 32 and connected to the workstation conversion disk 36, a rotary motor 372 mounted on the buffer frame 32, a rotating gear 373 rotatably mounted on the buffer frame 32 and connected to the output shaft of the rotary motor, and a transmission gear 374 mounted on the outer periphery of the rotating shaft 371 and meshing with the rotating gear 373.

[0044] When the blood collection tube falls, it mainly goes through the following four stages:

[0045] In the first stage, when the blood collection tube in the transition pipe 251 enters the main transmission pipe 1 of the blood collection tube through the second connecting section 232, and the fifth sensor 253 no longer detects the blood collection tube, this time period is set as t0. At the same time, the buffer gas is controlled to enter from the gas inlet 34, and the pressure of the buffer gas is adjusted to be close to the weight of the blood collection tube. At this time, the speed of the blood collection tube is V0 (VO = g * t0, where g is the acceleration due to gravity, and the time t0 can be set according to the floor height. The buffer gas pressure and time t0 are obtained from the actual test data and then set in the system in advance).

[0046] In the second stage, when the blood collection tube has been in free fall for time t0 and enters the main transmission pipeline 1 of the blood collection tube, the entry of the buffer gas balances the weight of the blood collection tube. At this time, the blood collection tube is in force balance. According to the law of inertia, the blood collection tube moves in uniform linear motion at a speed of V0 in the main transmission pipeline 1 and falls downward until the first sensor detects the blood collection tube. This time period is set as t1.

[0047] In the third stage, when the first sensor detects the blood collection tube, the pressure of the incoming buffer gas is increased, causing the upward thrust of the blood collection tube to exceed its weight, forcing it to decelerate and fall downwards until its bottom is opposite the gas inlet 34. At this point, the velocity is V1 and exactly 0. This time period is set as t2. During operation, according to V1-V0=a*t2 and H=V0*t2+1 / 2*a*t2*t2, the optimal buffer gas pressure value and time t2 can be obtained by combining these two formulas with actual measurement data. Wherein, V0 is the velocity value of the uniform motion in the second stage, which is also the initial velocity of the deceleration motion in the third stage; a is the acceleration (in uniform deceleration motion, a is a negative value, which changes by adjusting the buffer gas pressure); t2 is the time of the deceleration motion in the third stage; V1 is the final velocity of the deceleration motion in the third stage, which is 0; H is the falling height in this stage, H=1 meter.

[0048] In the fourth stage, as described in the third stage, when the first sensor detects the blood collection tube, there is a delay of t2. At this time, the blood collection tube is opposite to the gas inlet 34, and the entry of buffer gas is stopped. The blood collection tube falls into the station conversion plate 36 in a free-fall motion. The station conversion plate 36 is rotated by the rotating mechanism 37 until the collection tube is opposite to the discharge pipe 35, so that the blood collection tube falls from the discharge port through the discharge pipe 35 into the outpatient multi-treatment equipment 4 by its own gravity.

[0049] The outpatient multi-use device 4 is located below the blood collection tube anti-hemolysis buffer device 3. It is used to receive blood collection tubes delivered by each ward and send them to various testing instruments in the laboratory for testing.

[0050] A method for sending blood samples to a ward includes the following steps:

[0051] Step 1: Medical staff in each ward send one or more blood collection tubes containing blood samples into the collection drum 24 one by one through the collection port 211. The collection drum 24 rotates continuously so that multiple receiving chambers 241 receive the collected blood collection tubes one by one.

[0052] Step 2: When the dispensing drum 241 rotates to the point where the receiving chamber 241 containing the blood collection tubes is opposite to the feeding port 221, the blood collection tubes in the receiving chamber 241 fall into the transition tube 251 under the action of gravity. After the fifth sensor 253 detects the entry of the blood collection tubes, the moving part 252 controls the transition tube 25 to move between the first connecting section 231 and the second connecting section 232, so that the blood collection tubes rely on their own gravity to enter the main transmission pipeline 1 of the blood collection tubes through the second connecting section 232. When the fifth sensor 253 does not detect the blood collection tubes, the buffer gas is controlled to be input into the buffer pipeline 33 through the gas inlet 34, and the pressure of the buffer gas is adjusted so that the reverse thrust generated is equal to the weight of the blood collection tubes, so that the blood collection tubes falling in the main transmission pipeline 1 of the blood collection tubes maintain a uniform speed and straight descent.

[0053] Step 3: The blood collection tube continues to fall in the main transmission pipeline 1 until the first sensor 11 detects that a blood collection tube has passed by. The pressure of the buffer gas is increased so that the upward thrust of the blood collection tube is greater than the weight of the blood collection tube, which forces the falling blood collection tube to gradually decrease in speed. When the blood collection tube falls to its bottom and is opposite to the gas inlet 34, the speed is exactly 0. At the same time, the input of the buffer gas is stopped. At this time, the blood collection tube enters the buffer cavity 362 of the station conversion plate 36 by its own gravity.

[0054] Step 4: When the second sensor 321 detects that the blood collection tube has entered the corresponding buffer chamber 362, the rotating mechanism 37 controls the station conversion disk 36 to rotate so that the buffer chamber 362 containing the blood collection tube is aligned with the discharge pipe 35. At this time, the blood collection tube in the buffer chamber 362 falls from the discharge port through the discharge pipe 35 into the outpatient multiple-use equipment 4 by its own gravity, and is sent to various testing instruments in the laboratory for testing.

[0055] This application defines the structure of the blood sample delivery equipment, which consists of a main blood collection tube transmission pipeline 1 and multiple blood collection tube buffer delivery devices 2, to effectively collect and deliver blood collection tubes from each ward. The blood collection tube buffer delivery devices 2 are located on the main blood collection tube transmission pipeline 1, making the delivery equipment compact, better suited to the crowded environment of the ward nurse station, and more cost-effective, while meeting the usage needs of the ward nurse station. At the same time, a blood collection tube anti-hemolysis buffer device 3 is set up to slow down the blood collection tubes in the main blood collection tube transmission pipeline 1, so that they enter the outpatient multi-dispensing equipment 4 smoothly, preventing excessive speed impact that could cause hemolysis of the blood in the blood collection tubes.

[0056] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the specification of the present invention should still fall within the scope of the patent of the present invention.

Claims

1. A blood sample delivery device for use in wards, characterized in that: This includes the main transport pipeline for blood collection tubes, a blood collection tube buffer and delivery device, and a blood collection tube anti-hemolysis buffer device. The main blood collection tube extends vertically, traversing multiple wards arranged vertically along the hospital floors. The blood collection tube buffer and delivery device includes multiple units, each connected to the main blood collection tube transmission pipeline and corresponding to multiple wards. It includes an outer shell, a connecting pipe inside the outer shell connected to the main blood collection tube transmission pipeline, a delivery drum rotatably disposed inside the outer shell for receiving blood collection tubes, and a delivery mechanism disposed inside the outer shell below the delivery drum to transport the received blood collection tubes to the connecting pipe. The delivery drum has multiple receiving cavities distributed around its circumference for receiving blood collection tubes, and the outer shell has a delivery port that can be opposite to one of the receiving cavities. The blood collection tube anti-hemolysis buffer device is installed at the lower end of the main transmission pipeline of the blood collection tube to buffer the transmission speed of the incoming blood collection tube. It includes a box, a buffer pipe installed in the box and connected to the main transmission pipeline of the blood collection tube, a gas inlet installed on the side of the buffer pipe and connected to the buffer pipe, a discharge port installed at the bottom of the box, a station conversion plate rotatably installed between the lower end of the buffer pipe and the discharge port, and a rotating mechanism installed in the box and connected to and driving the station conversion plate to rotate. The main transmission pipeline of the blood collection tube is equipped with a first sensor for detecting whether a blood collection tube is passing by. The first sensor is located above the box. The blood sample delivery equipment used in the wards described above can perform the following steps: Step 1: Medical staff in each ward will send one or more blood collection tubes containing blood samples into the delivery drum one by one through the delivery port. The delivery drum will rotate continuously so that multiple receiving chambers will receive the delivered blood collection tubes one by one. Step 2: When the delivery drum rotates to the designated position, the blood collection tube in the receiving chamber falls into the delivery mechanism under the action of gravity. The delivery mechanism receives the incoming blood collection tube and transports it to the connecting pipe, so that the blood collection tube enters the main transmission pipeline of the blood collection tube. When the blood collection tube enters the main transmission pipeline of the blood collection tube, the buffer gas is controlled to be input into the buffer pipeline through the gas inlet, and the pressure of the buffer gas is adjusted so that the blood collection tube falling in the main transmission pipeline of the blood collection tube maintains a uniform speed and a straight descent. Step 3: The blood collection tube continues to fall in the main transmission pipeline until the first sensor detects that a blood collection tube has passed by. The pressure of the buffer gas is adjusted so that the reverse thrust generated by the buffer gas is greater than the weight of the blood collection tube, so that the speed of the falling blood collection tube gradually decreases. When the bottom of the blood collection tube is opposite to the gas inlet, the speed of the blood collection tube is 0. At this time, the input of the buffer gas is stopped, and the blood collection tube enters the station conversion plate by its own gravity. Step 4: The rotating mechanism drives the station conversion plate to rotate, so that the blood collection tube in the station conversion plate is aligned with the discharge port, so that the blood collection tube is transported to the next equipment through the discharge port.

2. The blood sample delivery device for wards according to claim 1, characterized in that: The blood collection tube anti-hemolysis buffer device also includes a buffer frame installed in the housing. The workstation conversion plate is rotatably installed on the buffer frame, including the conversion plate body and two buffer chambers that are opposite to the conversion plate body and can be opposite to the buffer pipe for receiving blood collection tubes. The buffer frame is provided with a second sensor and a third sensor that can detect whether there are blood collection tubes in the two buffer chambers respectively. The third sensor is installed above the discharge port.

3. A blood sample delivery device for wards according to claim 2, characterized in that: The rotating mechanism includes a rotating shaft rotatably mounted on a buffer frame and connected to a workstation conversion plate, a rotating motor mounted on the buffer frame, a rotating gear rotatably mounted on the buffer frame and connected to the output shaft of the rotating motor, and a transmission gear mounted on the outer periphery of the rotating shaft and meshing with the rotating gear.

4. A blood sample delivery device for wards according to claim 1, characterized in that: The blood collection tube buffer delivery device also includes a delivery frame for mounting the delivery drum in the housing and a rotation mechanism connected to and driving the delivery drum to rotate on the delivery frame. The delivery frame is provided with a fourth sensor opposite to the delivery port for detecting whether there is a blood collection tube in the relative receiving cavity.

5. A blood sample delivery device for wards according to claim 4, characterized in that: The connecting pipe includes a first connecting section and a second connecting section arranged vertically opposite each other. The delivery rack forms a feeding port that can communicate with the bottom of the receiving cavity. The delivery mechanism includes a transition pipe arranged below the feeding port that can move horizontally between the first connecting section and the second connecting section, and a moving component arranged on the delivery rack that connects to and drives the transition pipe to move horizontally back and forth. The transition pipe receives the blood collection tubes entering from the feeding port and is equipped with a fifth sensor for detecting whether there are blood collection tubes inside. The moving component moves the transition pipe containing the blood collection tubes between the first connecting section and the second connecting section, so that the blood collection tubes enter the main transmission pipe of the blood collection tubes through the second connecting section.

6. A blood sample delivery device for wards according to claim 5, characterized in that: The moving component includes a movable cylinder mounted on the delivery rack and connected to the transition tube, a guide rail mounted on the delivery rack, a guide slider movably mounted on the guide rail, and a connecting block mounted on the outer periphery of the transition tube and connected to the guide slider.

7. A blood sample delivery device for wards according to claim 5, characterized in that: The feeding rack is provided with a guide groove that guides the transition tube to move back and forth and is connected to the feeding port. The feeding port is connected to the guide groove. The transition tube includes a transition tube body and a baffle plate disposed on the outer periphery of the transition tube body. When the transition tube body moves between the first connecting section and the second connecting section, the baffle plate is placed in the feeding port.

8. A blood sample delivery device for wards according to claim 4, characterized in that: The rotating mechanism includes a rotating shaft connected to the delivery drum, a rotating motor mounted on the delivery frame, and a transmission assembly connecting the rotating motor and the rotating shaft.

9. A blood sample delivery device for wards according to claim 1, characterized in that: The blood collection tube buffer delivery device also includes a barcode scanner mounted on its outer casing.

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