Portable rapid blood sampling detection device and method thereof

Abstract

The invention relates to the technical field of blood sampling detection, in particular to a portable rapid blood sampling detection device and a method thereof.The portable rapid blood sampling detection device comprises a main body mechanism, the main body mechanism comprises a base and a blood detector installed on the base, an inlet hole is formed in one side of the top end of the base, and a blood sampling hole is formed in one end of the outer side of the base; the blood taking hole is communicated with the inlet hole; by arranging the main body mechanism, the adjusting mechanism, the disinfecting mechanism and the blood taking mechanism, fingers do not need to be disinfected in advance, so that the situation that the fingers are polluted again in the process that the fingers are taken to the blood taking detection device for detection after being disinfected is avoided, and when blood is taken from detection personnel, the blood taking efficiency is improved. The medical staff can detach the used sleeve from the adjusting disc and install a new sleeve, so that new aseptic cotton and the new sleeve can be rotated for use, blood can be continuously and uninterruptedly taken from the detection staff, and the blood taking efficiency is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of blood sampling and testing, and in particular to a portable rapid blood sampling and testing device and a method thereof. Background Art

[0002] Blood test is a method of testing blood samples. The basic process is to collect blood from the human body and send the blood sample to the laboratory for analysis and testing to evaluate the functional status of various systems in the human body, detect various diseases and abnormal conditions, and provide a reference for diagnosis and treatment.

[0003] According to the patent publication CN116746924B, a portable rapid blood sampling detection device and method thereof, which relate to the field of blood sampling detection technology, include a mounting plate, support plates are movably mounted on both sides of the top of the mounting plate, and also include: a fixing plate, the fixing plate is movably mounted on the tops of the two support plates, a mounting hole is provided on the right side of the top of the fixing plate, the mounting shell is movably mounted inside the mounting hole, a wiping mechanism, the wiping mechanism is movably mounted on the left bottom end of the right support plate, the wiping mechanism includes a fixing seat, the fixing seat is movably mounted on the left bottom end of the right support plate. In the process of realizing the present invention, the inventors found that at least the following problems in the prior art have not been solved: wiping the finger by the wiping mechanism, The blood from the finger is collected and tested by the blood sampling and testing mechanism, the arc plate is raised and lowered by the lifting mechanism, the finger is disinfected by the disinfection mechanism, and the finger is moved by the moving mechanism, so that there is no need to disinfect the finger in advance before using the blood sampling and testing device. During use, the traditional needle tube needs to be replaced after one use, so when drawing blood for the next test person, it is necessary to wait for the medical staff to replace the needle tube before continuing to draw blood, and then the interval for drawing blood for the next test person is long, and it is not possible to draw blood from multiple people continuously at one time, which affects the efficiency of blood drawing. Therefore, it is necessary to design a new technical solution to solve this problem. To this end, we propose a portable rapid blood collection and testing device and method. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a portable rapid blood sampling detection device and method.

[0005] In order to achieve the above objectives, the technical solution adopted by the present invention is: a portable rapid blood sampling and testing device, comprising:

[0006] A main body mechanism, the main body mechanism comprising a base and a blood detector mounted on the base, an inlet hole is opened on one side of the top of the base, a blood sampling hole is opened on one end of the outer side of the base, and the blood sampling hole and the inlet hole are connected to each other;

[0007] An adjustment mechanism, the adjustment mechanism comprising a push rod motor embedded in the middle of the top of the base, a first motor is installed at the driving end of the push rod motor, an adjustment disk is installed at the driving end of the first motor, and a plurality of U-shaped slots are opened on the outer side of the adjustment disk;

[0008] A blood collection mechanism, which includes a T-shaped connector slidably inserted in a U-shaped slot, a telescopic rod is installed at the bottom of the T-shaped connector, a sleeve is installed at the bottom of the telescopic rod, a blood collection needle is arranged in the sleeve, a blood collection blood vessel is installed on one side of the sleeve, a sealing plug is inserted at the top opening of the blood collection blood vessel, a blood collection blood vessel and an air suction tube pass through the sealing plug, one end of the blood collection blood vessel is connected with the sleeve, a negative pressure pump is installed on the top of the adjusting disk, the air suction end of the negative pressure pump is connected with an exhaust tube, the other end of the exhaust tube is connected with a circular conduit, the circular conduit is connected with a rubber tube, and the other end of the rubber tube is sleeved on the outside of the exhaust tube.

[0009] Preferably, a disinfection mechanism is also included, which includes a rotating disk installed at one end near the blood collection hole, a second motor is installed between the rotating disk and the base, a plurality of disinfection holes are opened on the rotating disk, and disinfection cotton is arranged in the plurality of disinfection holes, and the disinfection holes correspond to the blood collection holes.

[0010] Preferably, a spring is sleeved on the outer side of the telescopic rod, and two ends of the spring are respectively connected to the T-shaped connector and the sleeve.

[0011] Preferably, a groove is provided on one side of the inner cavity of the blood sampling hole, a camera is installed in the groove, and a display screen is embedded on one end of the outer side of the base.

[0012] Preferably, a plurality of protective tubes are installed on the surface of the base, and the number of the protective tubes is one less than the number of the sleeves, and the protective tubes correspond to the sleeves.

[0013] Preferably, a sealing ring is fixedly connected to the bottom of the sleeve, an arc-shaped notch is provided at the bottom of the sealing ring, and the sealing ring is elastic.

[0014] Preferably, a top cover is hingedly connected to one side of the base via a hinge, a side cover is hingedly connected to the front end of the base via a hinge, and a first locking plate and a second locking plate are respectively provided between the top cover and the side cover and the base.

[0015] Preferably, an arc-shaped handle is installed on the top of the top cover, and the arc-shaped handle is placed in the middle of the top of the top cover.

[0016] A method for a portable rapid blood sampling and testing device, characterized in that it comprises the following steps:

[0017] Step 1: First, start the second motor to drive the rotating disk to rotate so that the disinfection hole corresponds to the blood collection hole, then the tester's finger passes through the disinfection cotton to disinfect the blood collection finger, and then the blood collection part of the finger corresponds to the inlet hole;

[0018] Step 2: Start the push rod motor to pull the T-shaped connector downward so that the sleeve fits on the surface of the hand through the inlet hole, and then continue to start the push rod motor to squeeze the sleeve to squeeze the finger and then the blood collection needle contacts the person's finger for puncture;

[0019] Step 3: Start the negative pressure pump to generate negative pressure in the blood collection tube, so as to absorb the blood flowing out of the finger puncture into the blood collection tube, and then stop the negative pressure pump after observing the blood volume in the blood collection tube:

[0020] Step 4: Remove the blood collection tube from the sealing plug and place it in the blood detector to test the blood, and then print the test report on paper;

[0021] Step 5: When drawing blood from the next person, first start the second motor to drive the new disinfection cotton to correspond to the blood collection hole, then repeat the steps of step one, and then start the first motor to drive the adjustment disk to rotate to make the other sleeve correspond to the feed, thereby repeating the steps of steps two, three and four. When drawing blood from the test person, the person will remove the used sleeve from the adjustment disk and install a new sleeve, so that blood can be drawn from the test person continuously and uninterruptedly.

[0022] Compared with the prior art, the present invention has the following beneficial effects: by providing the main mechanism, the adjustment mechanism, the disinfection mechanism and the blood collection mechanism, it is not necessary to disinfect the finger in advance, thereby avoiding the re-contamination of the finger when the finger is taken to the blood collection detection device for detection after disinfection;

[0023] When drawing blood from the test person, the medical staff removes the used sleeve from the adjustment disk and installs a new sleeve, so that the new disinfection cotton and the new sleeve can be rotated and used, so that the blood of the test person can be drawn continuously and uninterruptedly, further improving the efficiency of blood drawing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the connection structure of the base, the blood collection mechanism and the disinfection mechanism of the present invention;

[0026] Figure 3 It is a schematic diagram of the connection structure of the sleeve, the T-shaped connector and the blood collection tube of the present invention;

[0027] Figure 4This is a schematic diagram of the connection structure between the adjustment disk and the negative pressure pump of the present invention;

[0028] Figure 5 This is a schematic diagram of the partial cross-sectional structure of the blood sampling hole of the present invention;

[0029] Figure 6 This is a sectional front view of the blood collection tube of the present invention;

[0030] Figure 7 It is a side cross-sectional view of the connection between the rotating disk and the disinfection cotton of the present invention;

[0031] Figure 8 It is a schematic diagram of the connection structure between the base and the blood collection mechanism of the present invention.

[0032] In the figure:

[0033] 101, base; 102, side cover; 103, second lock plate; 104, top cover; 105, first lock plate; 106, arc handle; 107, blood sampling hole; 108, inlet hole; 201, display screen; 202, groove; 203, camera; 301, rotating disk; 302, disinfection hole; 303, disinfection cotton; 304, second motor; 401, push rod motor; 402, first motor; 403, adjustment Plate; 404, protective tube; 405, U-shaped slot; 501, sleeve; 502, blood collection tube; 503, blood collection tube; 504, suction tube; 505, blood collection needle; 506, T-shaped connector; 507, telescopic rod; 508, spring; 509, sealing ring; 511, arc-shaped notch; 601, negative pressure pump; 602, suction tube; 603, circular catheter; 604, rubber tube; 701, blood detector. DETAILED DESCRIPTION

[0034] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0035] like Figures 1 to 8 A portable rapid blood sampling and testing device is shown, comprising:

[0036] The main body includes a base 101 and a blood detector 701 mounted on the base 101. An inlet hole 108 is provided on one side of the top of the base 101, and a blood sampling hole 107 is provided on one end of the outer side of the base 101. The blood sampling hole 107 and the inlet hole 108 are connected to each other.

[0037] The adjustment mechanism includes a push rod motor 401 embedded in the middle of the top of the base 101, a first motor 402 is installed at the driving end of the push rod motor 401, an adjustment disk 403 is installed at the driving end of the first motor 402, and a plurality of U-shaped slots 405 are opened on the outer side of the adjustment disk 403;

[0038] The blood collection mechanism includes a T-shaped connector 506 slidably inserted in the U-shaped slot 405, a telescopic rod 507 is installed at the bottom of the T-shaped connector 506, a sleeve 501 is installed at the bottom of the telescopic rod 507, a blood collection needle 505 is arranged in the sleeve 501, a blood collection tube 502 is installed on one side of the sleeve 501, a sealing plug is inserted at the top opening of the blood collection tube 502, a blood collection tube 503 and an air suction tube 504 are passed through the sealing plug, one end of the blood collection tube 503 is connected to the sleeve 501, a negative pressure pump 601 is installed on the top of the regulating disk 403, the air suction end of the negative pressure pump 601 is connected to the air extraction tube 602, the other end of the air extraction tube 602 is connected to the circular conduit 603, and the circular conduit 60 3 is connected with a rubber tube 604, the other end of the rubber tube 604 is sleeved on the outside of the suction pipe 504, and also includes a disinfection mechanism, the disinfection mechanism includes a rotating disk 301 installed at one end near the blood collection hole 107, a second motor 304 is installed between the rotating disk 301 and the base 101, a plurality of disinfection holes 302 are opened on the rotating disk 301, and disinfection cotton 303 is arranged in each of the plurality of disinfection holes 302, the middle part of the disinfection cotton 303 is a through hole, and the disinfection hole 302 corresponds to the blood collection hole 107. When working, first start the second motor 304 to drive the rotating disk 301 to rotate so that the disinfection hole 302 corresponds to the blood collection hole 107, and then the finger of the tester passes through the disinfection cotton 303 to the hand for blood collection. The finger is disinfected, and then the blood sampling part of the finger is matched with the inlet hole 108, so there is no need to disinfect the finger in advance, thereby avoiding re-contamination of the finger during the process of taking the finger to the blood sampling detection device for detection after disinfection, and then starting the push rod motor 401 to pull the T-shaped connecting piece 506 to move downward so that the sleeve 501 fits the surface of the hand through the inlet hole 108, and then continue to start the push rod motor 401 to make the sleeve 501 squeeze the finger and then the blood sampling needle 505 contacts the person's finger for puncture, and then start the negative pressure pump 601 to generate negative pressure in the blood sampling tube 502, so as to cooperate with the blood sampling tube 502 to absorb the blood flowing out of the finger puncture into the blood sampling tube 502, and then observe the blood sampling tube 502. After the blood collection volume is reached, the negative pressure pump 601 is stopped, and then the blood collection tube 502 is removed from the sealing plug and placed in the blood detector 701 for blood testing. When the next person to be tested is to be tested, the second motor 304 and the first motor 402 are started to respectively correspond the new disinfection cotton 303 to the blood collection hole 107 and the new sleeve 501 to the inlet hole 108. Then, when the test person is to be tested, the medical staff will remove the used sleeve 501 from the adjustment disk 403 and install the new sleeve 501, so that the new disinfection cotton 303 and the new sleeve 501 can be rotated for use, so that the test person can be continuously and uninterruptedly blood drawn, further improving the efficiency of blood drawing.

[0039] As a further embodiment of the present invention, a spring 508 is sleeved on the outer side of the telescopic rod 507, and the two ends of the spring 508 are respectively connected to the T-shaped connector 506 and the sleeve 501. Through the setting of the spring 508, when the T-shaped connector 506 drives the sleeve 501 to move downward, the sleeve 501 contacts the finger and compresses the spring 508, thereby buffering the impact force, thereby improving the comfort of the contact between the sleeve 501 and the finger of the blood drawing person.

[0040] As a further embodiment of the present invention, a groove 202 is provided on one side of the inner cavity of the blood sampling hole 107, and a camera 203 is installed in the groove 202. A display screen 201 is embedded in the outer end of the base 101. The camera 203 can display the blood sampling picture of the test person's finger in real time on the display screen 201, thereby avoiding the blood sampling needle 505 from being placed in a non-blood sampling position on the test person's finger, thereby improving the safety of blood collection.

[0041] As a further embodiment of the present invention, a plurality of protective cylinders 404 are installed on the surface of the base 101, and the number of protective cylinders 404 is one less than the number of sleeves 501. The protective cylinders 404 correspond to the sleeves 501. When one of the sleeves 501 is used to draw blood through the inlet 108, the other sleeves 501 are placed in the protective cylinder 404, thereby effectively protecting the sleeve 501 and the blood collection needle 505, thereby preventing the blood collection needle 505 from being contaminated and causing infection to the blood collection personnel.

[0042] As a further embodiment of the present invention, a sealing ring 509 is fixedly connected to the bottom of the sleeve 501. An arc-shaped notch 511 is opened at the bottom of the sealing ring 509, and the sealing ring 509 is elastic. The sealing ring 509 increases the comfort of the blood collection personnel's fingers contacting the sleeve 501.

[0043] As a further embodiment of the present invention, a top cover 104 is hinged on one side of the base 101, a side cover 102 is hinged on the front end of the base 101, a first lock plate 105 and a second lock plate 103 are respectively arranged between the top cover 104 and the side cover 102 and the base 101, an arc-shaped handle 106 is installed on the top of the top cover 104, and the arc-shaped handle 106 is placed in the middle of the top of the top cover 104. Through the arrangement of the side cover 102 and the top cover 104, it is convenient to cover the unused mechanism to avoid pollution, and the arc-shaped handle 106 is convenient for people to hold, so as to facilitate hand-held, lifting and carrying.

[0044] like Figures 1 to 8 A method for a portable rapid blood sampling and testing device is shown, comprising the following steps:

[0045] Step 1: First, start the second motor 304 to drive the rotating disk 301 to rotate so that the disinfection hole 302 corresponds to the blood collection hole 107, and then the finger of the inspector passes through the disinfection cotton 303 to disinfect the finger for blood collection, and then the blood collection part of the finger corresponds to the inlet hole 108;

[0046] Step 2: Start the push rod motor 401 to pull the T-shaped connector 506 downward so that the sleeve 501 fits on the surface of the hand through the inlet hole 108, and then continue to start the push rod motor 401 so that the sleeve 501 squeezes the finger and the blood collection needle 505 contacts the finger of the person to puncture;

[0047] Step 3: Start the negative pressure pump 601 to generate negative pressure in the blood collection tube 502, so as to cooperate with the blood collection tube 502 to absorb the blood flowing out of the finger puncture into the blood collection tube 502, and then stop the negative pressure pump 601 when the blood volume in the blood collection tube 502 reaches the required amount:

[0048] Step 4: Remove the blood collection tube 502 from the sealing plug and place it in the blood detector 701 to test the blood, and then print the test report on paper;

[0049] Step 5: When drawing blood from the next person, first start the second motor 304 to drive the new disinfection cotton 303 to correspond to the blood collection hole 107, then repeat the steps of step one, and then start the first motor 402 to drive the adjustment disk 403 to rotate to make the other sleeve 501 correspond to the feed, thereby repeating the steps of steps two, three and four. When drawing blood from the test person, the person will remove the used sleeve 501 from the adjustment disk 403 and install a new sleeve 501, so that blood can be drawn from the test person continuously and uninterruptedly.

[0050] Working principle of the present invention:

[0051] First, the disinfection cotton 303 and the sleeve 501 are respectively installed in the disinfection hole 302 and on the adjustment disk 403, and then the second motor 304 is started to drive the rotating disk 301 to rotate to make the disinfection hole 302 correspond to the blood collection hole 107, and then the tester's finger passes through the disinfection cotton 303 to disinfect the blood collection finger, and then the blood collection part of the finger is matched with the inlet hole 108, so that there is no need to disinfect the finger in advance, thereby avoiding the re-contamination of the finger when the finger is taken to the blood collection detection device for detection after disinfection, and then the push rod motor 401 is started to pull the T-shaped connecting piece 506 to move downward so that the sleeve 501 passes through the inlet hole 108 and fits the surface of the hand, and then the push rod motor 401 is continued to be started to make the sleeve 501 squeeze the finger and the blood collection needle 505 contacts the person's finger for puncture, and then the negative pressure pump 601 is started to produce negative pressure in the blood collection tube 502 Negative pressure is generated, thereby cooperating with the blood sampling tube 502 to absorb the blood flowing out of the finger puncture into the blood sampling tube 502, and then the negative pressure pump 601 is stopped after the blood collection volume in the blood sampling tube 502 is observed to be reached, and then the blood sampling tube 502 is removed from the sealing plug and placed in the blood detector 701 for blood testing. When the next test person is to be tested, the new disinfection cotton 303 is respectively matched with the blood collection hole 107 and the new sleeve 501 is matched with the inlet hole 108 by starting the second motor 304 and the first motor 402. Then, when the test person is to be blooded, the medical staff removes the used sleeve 501 from the adjustment disk 403 and installs the new sleeve 501, so that the new disinfection cotton 303 and the new sleeve 501 can be rotated for use, so that the test person can be continuously and uninterruptedly blood drawn, further improving the efficiency of blood drawing.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A portable rapid blood sampling and testing device, characterized in that: include: A main body structure, the main body structure comprising a base (101) and a blood detector (701) mounted on the base (101), an inlet hole (108) being provided on one side of the top of the base (101), a blood sampling hole (107) being provided on one end of the outer side of the base (101), and the blood sampling hole (107) and the inlet hole (108) being communicated with each other; An adjustment mechanism, the adjustment mechanism comprising a push rod motor (401) embedded in the middle of the top end of the base (101), a first motor (402) being installed at the driving end of the push rod motor (401), an adjustment disk (403) being installed at the driving end of the first motor (402), and a plurality of U-shaped slots (405) being provided on the outer side of the adjustment disk (403); The blood collection mechanism comprises a T-shaped connector (506) slidably plugged into a U-shaped slot (405), a telescopic rod (507) is installed at the bottom of the T-shaped connector (506), a sleeve (501) is installed at the bottom of the telescopic rod (507), a blood collection needle (505) is arranged in the sleeve (501), a blood collection tube (502) is installed on one side of the sleeve (501), a sealing plug is plugged into the top opening of the blood collection tube (502), and a blood collection needle (505) is inserted through the sealing plug. Tube (503) and suction tube (504), one end of the blood sampling tube (503) is connected to the sleeve (501), a negative pressure pump (601) is installed on the top of the regulating disk (403), the suction end of the negative pressure pump (601) is connected to the exhaust tube (602), the other end of the exhaust tube (602) is connected to a circular conduit (603), the circular conduit (603) is connected to a rubber tube (604), and the other end of the rubber tube (604) is sleeved on the outside of the suction tube (504).

2. A portable rapid blood sampling and testing device according to claim 1, characterized in that: The device also comprises a disinfection mechanism, the disinfection mechanism comprising a rotating disk (301) installed at one end close to the blood sampling hole (107), a second motor (304) being installed between the rotating disk (301) and the base (101), a plurality of disinfection holes (302) being opened on the rotating disk (301), and disinfection cotton (303) being arranged in each of the plurality of disinfection holes (302), and the disinfection holes (302) corresponding to the blood sampling hole (107).

3. A portable rapid blood sampling and testing device according to claim 1, characterized in that: A spring (508) is sleeved on the outer side of the telescopic rod (507), and two ends of the spring (508) are respectively connected to the T-shaped connector (506) and the sleeve (501).

4. A portable rapid blood sampling and testing device according to claim 1, characterized in that: A groove (202) is provided on one side of the inner cavity of the blood sampling hole (107), a camera (203) is installed in the groove (202), and a display screen (201) is embedded on one end of the outer side of the base (101).

5. A portable rapid blood sampling and testing device according to claim 1, characterized in that: A plurality of protective tubes (404) are installed on the surface of the base (101), and the number of the protective tubes (404) is one less than the number of the sleeves (501), and the protective tubes (404) correspond to the sleeves (501).

6. A portable rapid blood sampling and testing device according to claim 1, characterized in that: A sealing ring (509) is fixedly connected to the bottom of the sleeve (501), an arc-shaped notch (511) is provided at the bottom of the sealing ring (509), and the sealing ring (509) is elastic.

7. A portable rapid blood sampling and testing device according to claim 1, characterized in that: A top cover (104) is hingedly connected to one side of the base (101) through a hinge, and a side cover (102) is hingedly connected to the front end of the base (101) through a hinge. A first locking plate (105) and a second locking plate (103) are respectively provided between the top cover (104) and the side cover (102) and the base (101).

8. A portable rapid blood sampling and testing device according to claim 7, characterized in that: An arc-shaped handle (106) is installed on the top of the top cover (104), and the arc-shaped handle (106) is placed in the middle of the top of the top cover (104).

9. A method for a portable rapid blood sampling and testing device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: First, the second motor (304) is started to drive the rotating disk (301) to rotate so that the disinfection hole (302) corresponds to the blood collection hole (107), and then the finger of the inspector passes through the disinfection cotton (303) to disinfect the finger for blood collection, and then the blood collection part of the finger corresponds to the inlet hole (108); Step 2: Start the push rod motor (401) to pull the T-shaped connector (506) downward so that the sleeve (501) passes through the inlet hole (108) and fits on the surface of the hand, and then continue to start the push rod motor (401) so that the sleeve (501) squeezes the finger and the blood collection needle (505) contacts the finger of the person to puncture it; Step 3: Start the negative pressure pump (601) to generate negative pressure in the blood collection tube (502), so as to cooperate with the blood collection tube (502) to absorb the blood flowing out of the finger puncture into the blood collection tube (502), and then stop the negative pressure pump (601) after the blood volume in the blood collection tube (502) reaches the required amount: Step 4: Remove the blood collection tube (502) from the sealing plug and place it in the blood detector (701) to test the blood, and then print the test report on paper; Step 5: When drawing blood from the next person, first start the second motor (304) to drive the new disinfection cotton (303) to correspond to the blood collection hole (107), then repeat the steps of step one, and then start the first motor (402) to drive the adjustment disk (403) to rotate to make another sleeve (501) correspond to the feed, thereby repeating the steps of steps two, three and four. When drawing blood from the test person, the person will remove the used sleeve (501) from the adjustment disk (403) and install a new sleeve (501), so that the blood of the test person can be drawn continuously and uninterruptedly.

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