Blood collection needle with ejector pin insertion and retraction protection needle tip structure and protection device thereof

Abstract

The present invention relates to a blood collection needle and a protective device thereof that adopts a needle tip structure that is inserted and retracted to protect the needle tip, including a protective component and a gas connection component, wherein a mesh plate is arranged inside the protective component, and the gas connection component is located at the upper end of the needle tube. The beneficial effects of the present invention are as follows: the blood collection needle and the protective device that adopts a needle tip structure that is inserted and retracted to protect the needle tip can facilitate the device to puncture into the human body, and the needle tip is exposed to the outside only during puncture, which can well protect the needle tip, and the device can disinfect all parts inside the protective component, and the device sets the control of the disinfection work outside the device, thereby preventing the loss of ozone caused by opening the device and reducing the disinfection ability of the device, and the device facilitates users to connect at other angles, thereby facilitating users to collect blood at a comfortable angle, and the device increases the connection stability of the device by positioning and fixing.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a blood collection needle with a thimble-penetrating and retracting protection needle tip structure and a protection device thereof. Background Art

[0002] A lancet is an instrument used to collect blood samples during medical examinations. It consists of a needle and a needle rod. The needle is located at the head of the needle rod, and a sheath is slidably connected to the needle rod. A return spring is provided between the sheath and the needle rod, and the initial position of the sheath is located at the head of the needle and the needle rod. The lancet also needs to be protected and stored using a protective device when not in use.

[0003] The existing blood collection needle only has a needle tube at the head, so the needle tube is exposed when in use, and the sharpness of the head can easily cause harm to other people.

[0004] Therefore, it is necessary to design a blood collection needle and a protective device thereof that adopts a thimble penetration and retraction protection needle tip structure in order to address the above problems. Summary of the invention

[0005] The object of the present invention is to provide a blood collection needle and a protection device thereof using a needle tip protection structure for insertion and retraction of a thimble, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a blood collection needle and a protection device thereof adopting a pin-penetrating retracting protection needle tip structure, comprising a protection component and a gas connecting component, wherein a mesh plate is arranged inside the protection component, and a needle tube and a needle body assembly are sequentially placed on the left side of the mesh plate from front to back, the gas connecting component is located at the upper end of the needle tube, and the gas connecting component comprises a first pipeline, a first micro-one-way valve, a second micro-one-way valve and a second pipeline, one end of the first pipeline is connected to the first micro-one-way valve, and the other end of the first pipeline is connected to the second micro-one-way valve, the end of the second micro-one-way valve away from the first micro-one-way valve is connected to the second pipeline, and the end of the second pipeline away from the second micro-one-way valve is connected to a partition.

[0007] Furthermore, the protection assembly includes a box body, a hinge and a box cover, and the left side of the box body is connected to the box cover through a hinge.

[0008] Furthermore, the needle assembly includes a pressing bag block and a ventilation tube, and the ventilation tube is connected through the right wall of the pressing bag block.

[0009] Furthermore, the needle assembly also includes a blood collection needle body, a needle and a blood guide tube, and the right side of the pressing capsule is connected to the blood collection needle body, the upper end of the blood collection needle body is embedded with a needle, and the blood guide tube is passed through the needle.

[0010] Furthermore, an opening and closing assembly is arranged on the upper part of the interior of the protection assembly, and a locking assembly is arranged on the right side of the opening and closing assembly, an adjusting assembly is arranged at the lower end of the needle assembly, and a mounting assembly is arranged at the lower end of the adjusting assembly.

[0011] Furthermore, the opening and closing assembly includes an outer cover, a spacer, a third pipe and a shifting block, and the inner part of the outer cover is inlaid with a spacer, the upper end of the outer cover is connected to the third pipe, and the right side of the spacer is connected to the shifting block.

[0012] Furthermore, the lock assembly includes a guide rod, a spring, a fixed block and a guide rail, and the lower end of the guide rod is connected to the spring, the lower end of the spring is connected to the fixed block, and the right end of the fixed block is connected to the guide rail.

[0013] Furthermore, the adjustment component includes a rotating head and a through pipe, and the middle of the lower end of the rotating head is connected with the through pipe.

[0014] Furthermore, the adjustment assembly also includes a first connecting rod, a rotating pin and a second connecting rod, and the first connecting rod is arranged on both sides of the lower end of the rotating head, and the lower end of the first connecting rod is connected to the second connecting rod through the rotating pin.

[0015] Furthermore, the mounting assembly includes a mounting head, a closing block and an auxiliary clamping block, wherein the closing block is disposed inside the mounting head, and the auxiliary clamping block is disposed outside the mounting head.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the device can facilitate the puncture of the device into the human body, the needle is exposed to the outside only during puncture, and can protect the needle well. The device can disinfect all parts inside the protective assembly. The device sets the control of the disinfection work on the outside of the device, thereby preventing the loss of ozone caused by opening the device and reducing the disinfection ability of the device. The device is convenient for users to connect at other angles, thereby facilitating users to collect blood at a comfortable angle. The device increases the connection stability of the device by positioning and fixing.

[0017] 1. When the present invention is in use, pressing the pressing capsule will push the needle out to work. After the blood collection needle body is inserted into the human body, the pressing capsule is released to retract the needle. This method can facilitate the device to puncture the human body. At the same time, the needle is exposed to the outside only during puncture, which can protect the needle well.

[0018] 2. The present invention stores ozone at the upper end of the partition. When the needle assembly of the equipment needs to be used, the needle tube can be drawn to draw ozone into the needle tube through the second micro-one-way valve, the second pipeline and the third pipeline. The needle tube is then pressed to fill the ozone inside the needle tube into the lower end of the mesh plate through the first pipeline and the first micro-one-way valve, and diffused from the bottom of the mesh plate, thereby being able to disinfect all components inside the protection assembly.

[0019] 3. The present invention can control the ozone disinfection work by sliding the dial block to the left, so that the dial block can drive the partition to open. When the device presses the dial block, it can drive the guide rod to slide on the guide rail, so that the device can be opened, so that one dial block can control two functions. At the same time, the control of the disinfection work is also set on the outside of the device, thereby preventing the loss of ozone due to the opening of the device, which reduces the disinfection ability of the device.

[0020] 4. The present invention relies on the rotating structure formed by the second connecting rod through the rotating pin and the first connecting rod to adjust the angle of the needle assembly, so that it is convenient for users to connect at other angles, so that it is convenient for users to collect blood at a comfortable angle. At the same time, the rotating head has a rotating function, so that the needle assembly can be rotated in all directions.

[0021] 5. The present invention can seal the installation head through the closing block, so that blood collection can be carried out only after the needle tube is inserted into the specified position. At the same time, the installation head and the needle tube can be fixed for a second time through the auxiliary card block, thereby increasing the stability of the device connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view cross-sectional structural schematic diagram of a blood collection needle and a protective device thereof that adopts a thimble penetration and retraction protection needle tip structure of the present invention;

[0023] Figure 2 It is a rear perspective structural schematic diagram of a blood collection needle and a protective device thereof that adopts a thimble-penetrating and retracting protection needle tip structure of the present invention;

[0024] Figure 3 It is a schematic diagram of a partially enlarged side cross-section structure of a blood collection needle and a protection device thereof that adopts a thimble penetration and retraction protection needle tip structure of the present invention;

[0025] Figure 4 It is a front view external structure schematic diagram of a blood collection needle and a protection device thereof that adopts a thimble penetration and retraction protection needle tip structure of the present invention;

[0026] Figure 5 The present invention is a blood collection needle and a protective device thereof using a thimble to penetrate and retract to protect the needle tip structure Figure 1 The enlarged structural diagram at A in the middle;

[0027] Figure 6 It is a schematic diagram of the enlarged cross-section structure of the needle assembly of the blood collection needle and its protection device using the ejector needle penetration and retraction protection needle tip structure of the present invention;

[0028] Figure 7 The present invention is a blood collection needle and a protective device thereof using a thimble to penetrate and retract to protect the needle tip structure Figure 6 The enlarged structural diagram at B in the middle;

[0029] Figure 8 It is a schematic diagram of the enlarged cross-sectional structure of the installation assembly of the blood collection needle and its protection device adopting the ejector pin penetration and retraction protection needle tip structure of the present invention.

[0030] In the figure: 1, protection component; 101, box body; 102, hinge; 103, box cover; 2, mesh plate; 3, partition; 4, needle tube; 5, needle body component; 501, pressing capsule; 502, ventilation tube; 503, blood collection needle body; 504, needle; 505, blood guide tube; 6, gas communication component; 601, first pipeline; 602, first micro one-way valve; 603, second micro one-way valve; 604, second pipeline; 7, opening and closing assembly Parts; 701, outer cover; 702, spacer; 703, third pipe; 704, shift block; 8, lock assembly; 801, guide rod; 802, spring; 803, fixed block; 804, guide rail; 9, adjustment assembly; 901, rotating head; 902, through pipe; 903, first connecting rod; 904, rotating pin; 905, second connecting rod; 10, installation assembly; 1001, installation head; 1002, closing block; 1003, auxiliary card block. DETAILED DESCRIPTION

[0031] like Figure 1-4 As shown, the present invention provides a technical solution: a blood collection needle and a protection device thereof using a thimble penetration and retraction protection needle tip structure, comprising a protection component 1 and a gas communication component 6, wherein a mesh plate 2 is arranged inside the protection component 1, and a needle tube 4 and a needle body component 5 are sequentially placed on the left side of the mesh plate 2 from front to back, the gas communication component 6 is located at the upper end of the needle tube 4, and the gas communication component 6 comprises a first pipeline 601, a first micro-one-way valve 602, a second micro-one-way valve 603 and a second pipeline 604, one end of the first pipeline 601 is connected to the first micro-one-way valve 602, and the other end of the first pipeline 601 is connected to the second micro-one-way valve 603, one end of the second micro-one-way valve 603 away from the first micro-one-way valve 602 is connected to the second pipeline 604, and one end of the second pipeline 604 away from the second micro-one-way valve 603 is connected to the partition 3;

[0032] The specific operation is as follows: ozone is stored at the upper end of the partition 3. When the equipment needle assembly 5 needs to be used, the needle tube 4 can be drawn to draw ozone into the needle tube 4 through the second micro-one-way valve 603, the second pipeline 604 and the third pipeline 703, and then the needle tube 4 is pressed to fill the ozone inside the needle tube 4 into the lower end of the mesh plate 2 through the first pipeline 601 and the first micro-one-way valve 602, and diffuse out from the bottom of the mesh plate 2, so that all components inside the protection assembly 1 can be disinfected.

[0033] like Figure 2 As shown, the protection assembly 1 includes a box body 101, a hinge 102 and a box cover 103, and the left side of the box body 101 is connected to the box cover 103 through the hinge 102;

[0034] The box body 101 forms a rotating structure with the box cover 103 through the hinge 102. After the lock assembly 8 is opened, the box cover 103 can be opened through the rotating structure, so that users can take items easily.

[0035] like Figure 6 As shown, the needle assembly 5 includes a pressing bag block 501 and a ventilating tube 502, and the ventilating tube 502 is connected to the right wall of the pressing bag block 501, and the needle assembly 5 also includes a blood collection needle body 503, a needle 504 and a blood guide tube 505, and the right side of the pressing bag block 501 is connected to the blood collection needle body 503, the upper end of the blood collection needle body 503 is embedded with the needle 504, and the surrounding of the needle 504 is penetrated by the blood guide tube 505;

[0036] When in use, pressing the pressing bag block 501 will push the needle 504 out to work. When the blood collection needle body 503 is inserted into the human body, the pressing bag block 501 is released to make the needle 504 retract. This method can facilitate the device to puncture the human body. At the same time, the needle 504 is exposed to the outside only during puncture, which can well protect the needle 504. The ventilation tube 502 can facilitate the gas or liquid inside the pressing bag block 501 to enter the blood collection needle body 503, thereby pushing the needle 504 out of the blood collection needle body 503. The blood guide blood 505 facilitates the collection of blood into the needle tube 4.

[0037] like Figure 5-8 As shown, an opening and closing assembly 7 is arranged on the upper part of the interior of the protection assembly 1, and a lock assembly 8 is arranged on the right side of the opening and closing assembly 7, an adjustment assembly 9 is arranged at the lower end of the needle assembly 5, and a mounting assembly 10 is arranged at the lower end of the adjustment assembly 9;

[0038] The opening and closing component 7 can control the opening and closing of the gas connecting component 6, thereby controlling the start of ozone disinfection. The locking component 8 can control the opening and closing of the protection component 1, thereby preventing the protection component 1 from opening automatically and causing damage to the internal equipment. The adjustment component 9 can adjust the angle of the needle component 5 to facilitate the user to collect blood at a comfortable angle. The installation component 10 can increase the connection stability of the equipment by positioning and fixing.

[0039] like Figure 5 As shown, the opening and closing assembly 7 includes an outer cover 701, a spacer 702, a third pipe 703 and a shift block 704, and the inner part of the outer cover 701 is inlaid with a spacer 702, the upper end of the outer cover 701 is connected to the third pipe 703, and the right side of the spacer 702 is connected to the shift block 704, and the lock assembly 8 includes a guide rod 801, a spring 802, a fixed block 803 and a guide rail 804, and the lower end of the guide rod 801 is connected to the spring 802, the lower end of the spring 802 is connected to the fixed block 803, and the right end of the fixed block 803 is connected to the guide rail 804;

[0040] By sliding the dial block 704 to the left, the dial block 704 can drive the diaphragm 702 to open, thereby controlling the ozone disinfection work. When the device presses the dial block 704, it can drive the guide rod 801 to slide on the guide rail 804, so that the device can be opened, so that one dial block 704 can control two functions. At the same time, the control of the disinfection work is also set on the outside of the device, so as to prevent the loss of ozone caused by the opening of the device and reduce the disinfection ability of the device. The outer cover 701 can connect the third pipe 703 and the second pipe 604. The spring 802 can continuously push the guide rod 801 to put the guide rod 801 in a locked state. The fixed block 803 supports the spring 802. There is only contact between the spring 802 and the guide rod 801, and there is no specific connection method. At the same time, there is no specific connection prevention between the guide rod 801 and the guide rail 804. There is a protrusion on the side of the guide rail 804 close to the guide rod 801 to clamp the guide rod 801, so that the guide rod 801 cannot swing back and forth.

[0041] like Figure 7 As shown, the adjustment component 9 includes a rotating head 901 and a through pipe 902, and the through pipe 902 is connected to the middle of the lower end of the rotating head 901, and the adjustment component 9 also includes a first connecting rod 903, a rotating pin 904 and a second connecting rod 905, and the first connecting rod 903 is arranged on both sides of the lower end of the rotating head 901, and the lower end of the first connecting rod 903 is connected to the second connecting rod 905 through the rotating pin 904;

[0042] By relying on the rotating structure formed by the second connecting rod 905 through the rotating pin 904 and the first connecting rod 903, the angle of the needle assembly 5 can be adjusted, so that it is convenient for the user to connect at other angles, so that it is convenient for the user to collect blood at a comfortable angle. At the same time, the rotating head 901 has a rotating function, so that the needle assembly 5 can be rotated in all directions.

[0043] like Figure 8 As shown, the mounting assembly 10 includes a mounting head 1001, a closing block 1002 and an auxiliary clamping block 1003, and the closing block 1002 is disposed inside the mounting head 1001, and the auxiliary clamping block 1003 is disposed outside the mounting head 1001;

[0044] The installation head 1001 can be blocked by the closing block 1002, so that blood collection can only be carried out after the needle tube 4 is inserted into the specified position. At the same time, the installation head 1001 and the needle tube 4 can be fixed for a second time by the auxiliary clamping block 1003, thereby increasing the stability of the device connection.

[0045] Working principle: first, push the shift block 704 to the right, and the guide rod 801 guides the shift block 704, so that the shift block 704 drives the diaphragm 702 to be pulled out of the outer cover 701, and then pull the lower end of the needle tube 4, and draw ozone into the needle tube 4 through the second micro-one-way valve 603, the second pipeline 604 and the third pipeline 703, and then press the needle tube 4 to fill the ozone inside the needle tube 4 into the right side of the mesh plate 2 through the first pipeline 601 and the first micro-one-way valve 602, and diffuse out from the right side of the mesh plate 2, so that all parts inside the protection component 1 can be disinfected, and the disinfection is carried out for a period of time, and then the shift block 704 is pressed, so that the shift block 704 drives the guide rod 801 to slide down along the guide rail 804, so that the box body 101 and the box cover 103 can be opened, and then the needle tube 4 and the needle assembly 5 are taken out, and the head of the needle tube 4 is inserted into the mounting head 1001, and the closing block 1002 can be used to disinfect. The mounting head 1001 is sealed so that the needle tube 4 can be inserted into the designated position before blood collection can be carried out. The mounting head 1001 and the needle tube 4 can be fixed for a second time through the auxiliary clamping block 1003. Then, the angle of the needle body assembly 5 can be adjusted by relying on the second connecting rod 905 through the rotating structure formed by the rotating pin 904 and the first connecting rod 903. The rotating head 901 has a rotating function, so that the needle body assembly 5 can be rotated in all directions, which is convenient for users to connect at other angles, so that it is convenient for users to collect blood at a comfortable angle. When the staff collects blood, pressing the pressing capsule block 501 will push the needle 504 out to work. When the blood collection needle body 503 is inserted into the human body, the pressing capsule block 501 is released to make the needle 504 retreat. At this time, the needle tube 4 is pulled, and the blood is transported to the needle tube 4 for collection through the guide blood vessel 505, the through tube 902 and the mounting head 1001.

Claims

1. A blood collection needle with a protective device that uses a thimble to penetrate and retract to protect the needle tip. It is characterized in that The invention comprises a protection component (1), a gas communication component (6), an opening and closing component (7) and a lock component (8); a mesh plate (2) is arranged inside the protection component (1); a needle tube (4) and a needle body component (5) are arranged on the left side of the mesh plate (2) from front to back; the gas communication component (6) is located at the upper end of the needle tube (4); the gas communication component (6) comprises a first pipeline (601), a first micro-check valve (602), a second micro-check valve (603) and a second pipeline (604); one end of the first pipeline (601) is connected to the first micro-check valve (602); The other end of the first pipeline (601) is connected to a second micro-check valve (603), one end of the second micro-check valve (603) away from the first micro-check valve (602) is connected to a second pipeline (604), and one end of the second pipeline (604) away from the second micro-check valve (603) is connected to a partition (3), the needle assembly (5) comprises a pressing bag block (501) and a ventilation tube (502), and the ventilation tube (502) is connected to the right wall of the pressing bag block (501), and the needle assembly (5) also comprises a blood collection needle body (503), a needle head (504) and a guide tube ( 505), and the right side of the pressing capsule block (501) is connected to a blood collection needle body (503), the upper end of the blood collection needle body (503) is embedded with a needle head (504), and the needle head (504) is penetrated by a guide blood vessel (505) around the periphery, the opening and closing assembly (7) comprises an outer cover (701), a septum (702), a third pipeline (703) and a shifting block (704), and the inner part of the outer cover (701) is embedded with a septum (702), the upper end of the outer cover (701) is connected to the third pipeline (703), the right side of the septum (702) is connected to the shifting block (704), and the lock The component (8) comprises a guide rod (801), a spring (802), a fixing block (803) and a guide rail (804), wherein the lower end of the guide rod (801) is connected to the spring (802), the lower end of the spring (802) is connected to the fixing block (803), and the right end of the fixing block (803) is connected to the guide rail (804); an opening and closing component (7) is arranged at the upper part of the interior of the protection component (1), and a lock component (8) is arranged on the right side of the opening and closing component (7); an adjustment component (9) is arranged at the lower end of the needle body component (5), and a mounting component (10) is arranged at the lower end of the adjustment component (9).

2. The blood collection needle with a protective device using a needle tip protection structure for inserting and retracting a thimble according to claim 1, It is characterized in that The adjustment component (9) comprises a rotating head (901) and a through pipe (902), and the middle of the lower end of the rotating head (901) is connected to the through pipe (902).

3. The blood collection needle with a protective device using a needle tip protection structure for inserting and retracting the ejector pin according to claim 2, It is characterized in that The adjustment assembly (9) further comprises a first connecting rod (903), a rotating pin (904) and a second connecting rod (905), wherein the first connecting rod (903) is arranged on both sides of the lower end of the rotating head (901), and the lower end of the first connecting rod (903) is connected to the second connecting rod (905) via the rotating pin (904).

4. The blood collection needle with a protective device using a needle tip protection structure for inserting and retracting a thimble according to claim 3, It is characterized in that The mounting assembly (10) comprises a mounting head (1001), a closing block (1002) and an auxiliary card block (1003), wherein the closing block (1002) is arranged inside the mounting head (1001) and the auxiliary card block (1003) is arranged outside the mounting head (1001).

5. The blood collection needle with a protective device using a needle tip protection structure for inserting and retracting the ejector pin according to claim 4, It is characterized in that The protection assembly (1) comprises a box body (101), a hinge (102) and a box cover (103), and the left side of the box body (101) is connected to the box cover (103) via the hinge (102).

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