Angle adjusting device for needle tip of blood taking needle

Abstract

The invention discloses a blood taking needle tip angle adjusting device, and relates to the technical field of medical instruments, the blood taking needle tip angle adjusting device comprises a mounting tube, a fingertip placing groove is formed in the end part of the mounting tube, the fingertip placing groove and the end part of the mounting tube are movably mounted, an angle adjusting mechanism is arranged at the end part of the mounting tube, and a blood taking needle body is mounted in the angle adjusting mechanism in a penetrating manner; blood taking needle grooves are formed in the two sides of the interior of the fingertip containing groove; the angle adjusting mechanism is connected with a releasing mechanism, the releasing mechanism is connected with an energy storage mechanism, the outer side of the mounting pipe is sleeved with a pressing cylinder, and the pressing cylinder is connected with the energy storage mechanism; the angle of the blood taking needle body is adjusted through the angle adjusting mechanism, the energy storage mechanism and the release mechanism are matched to apply acting force to the blood taking needle body in the angle adjusting mechanism, and blood taking operation is completed.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a device for adjusting the needle tip angle of a blood collection needle. Background Art

[0002] Chronic diabetic patients need to monitor their blood sugar levels regularly in order to keep abreast of changes in blood sugar and adjust diet, exercise, and drug treatment. Patients use a blood collection needle to collect blood samples from their fingertips and use a blood glucose meter to analyze blood sugar. When using a blood collection needle, most disposable needles are installed on a pen. By pressing a button or other operating methods, the blood collection needle quickly punctures the skin and collects a small amount of blood for testing. When collecting blood, it is important to try to collect blood from the flanks of the fingertips, as there are fewer nerve endings on the flanks of the fingertips and the pain caused is less severe.

[0003] The existing blood collection needle is not convenient to adjust the blood collection angle according to the blood collection site when in use, and the blood collection depth cannot be controlled. Sometimes multiple puncture operations are required, which aggravates the pain caused by blood collection. Summary of the invention

[0004] The object of the present invention is to provide a device for adjusting the angle of a blood collection needle tip to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A blood collection needle tip angle adjustment device comprises a mounting tube, the end of the mounting tube is provided with a fingertip placement groove, the fingertip placement groove is movably mounted with the end of the mounting tube, the end of the mounting tube is provided with an angle adjustment mechanism, the blood collection needle body is inserted and installed inside the angle adjustment mechanism, and blood collection needle grooves are provided on both sides of the fingertip placement groove.

[0006] As a further solution of the present invention: the angle adjustment mechanism includes a rotating rod rotatably arranged at the end of the mounting tube, the rotating rod is provided with a rotating handle, the rotating rod is provided with a spherical rack at the axis position of the mounting tube, a mounting cylinder is provided inside the spherical rack, the back of the spherical rack is symmetrically provided with a matching sliding column, a mounting seat is slidably mounted on the matching sliding column, connecting flanges are provided on both sides of the mounting seat, the connecting flanges are slidably mounted on the matching sliding column, the end of the blood collection needle body is inserted in the center of the mounting seat, a return spring is provided between the mounting seat and the spherical rack, a ball joint 1 is provided on the side of the mounting seat away from the blood collection needle body, the ball joint 1 is connected to an intermediate rod, the intermediate rod is connected to ball joint 2, the ball joint 2 is connected to a release mechanism, the release mechanism is connected to an energy storage mechanism, the outer side of the mounting tube is sleeved with a pressing cylinder, and the pressing cylinder is connected to the energy storage mechanism.

[0007] As a further solution of the present invention: a mounting groove is provided at the end of the mounting tube, a sliding rod is provided in the mounting groove, a matching slider is provided on the side of the fingertip placement groove facing the mounting tube, a spring column is provided between the matching slider and the fingertip placement groove, the matching slider and the sliding rod are slidably installed, positioning holes are continuously arranged on the upper side of the mounting groove, and a locking pin is provided at the position of the fingertip placement groove corresponding to the positioning hole.

[0008] As a further solution of the present invention: the release mechanism includes locking holes and a strip groove 1 evenly arranged on the side wall of the mounting tube, a mating disk 2 is slidably installed in the strip groove 1, a mating block is arranged on the edge of the mating disk 2, the mating block cooperates with the strip groove 1, a mating disk 1 is matingly installed in the mounting tube, the mating disk 1 is connected to the ball joint 2, a connecting tube is fixedly arranged between the mating disk 1 and the mating disk 2, a telescopic motor is fixedly arranged in the connecting tube, and the telescopic motor is connected to a lock release component.

[0009] As a further solution of the present invention: the locking release assembly includes a mounting plate connected to the output shaft of the telescopic motor, and a plurality of wedge blocks are evenly arranged on the mounting plate, and the wedge blocks are arranged corresponding to the locking holes on the mounting tube. A plug-in column is inserted on the side wall of the connecting tube, and the plug-in column and the locking hole correspond to each other. An abutment block is provided at one end of the plug-in column facing the inside of the connecting tube, and the abutment block cooperates with the wedge surface of the wedge block. A tensioning spring is sleeved on the plug-in column between the abutment block and the connecting tube, and a mating convex strip is provided on the edge of the plug-in column, and the plug-in column is plugged into the connecting tube through the mating convex strip.

[0010] As a further solution of the present invention: the inner side of the abutment block is hollow, and a plurality of groups of rollers are rotatably mounted on one side of the abutment block toward the wedge block, and the abutment block contacts the wedge surface through the rollers.

[0011] As a further scheme of the present invention: the energy storage mechanism includes an intermediate column arranged inside the mounting tube, the end of the intermediate column is provided with a threaded column, the intermediate column is rotatably connected to the inside of the mounting tube through the threaded column, the intermediate column points to the direction of the release mechanism and is sequentially sleeved with a matching disk three and a pressure plate, the outer side of the mounting tube is evenly provided with strip grooves two, the edge of the matching disk three is provided with an extension column corresponding to the strip groove two, the strip groove two is provided with a matching column, the extension column and the matching column are slidably installed, a matching strip is provided at the edge of the pressure plate, the matching strip is slidably installed between one of the strip grooves two, locking motors are symmetrically provided at the two ends of the strip grooves, the locking motor is connected with a locking column, the side of the matching strip is provided with a pin hole that cooperates with the matching column, an energy storage spring is provided between the pressure plate and the matching disk two in the energy storage mechanism, the energy storage spring is sleeved on the outer side of the intermediate column, and the edge of the pressing cylinder is contacted and installed with the end of the extension column.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The spherical frame and the first and second ball joints are used to realize the rotation adjustment installation of the mounting barrel, and the angle of the blood collection needle body inside the mounting barrel is flexibly adjusted while ensuring that the energy storage mechanism and the release mechanism exert force on the blood collection needle body to complete the blood collection operation.

[0013] (2) The fingertip placement slot and the end of the mounting tube are slidably installed by cooperating with the slider and the slide column. When in use, the fingertip placement slot is gently pulled out in the direction away from the end of the mounting tube, which will cause the locking pin to disengage from the positioning hole. At this time, the fingertip placement slot can be adjusted along the mounting slot, so that the blood collection needle body can be adjusted to the other side of the fingertip placement slot, thereby performing blood collection operations on different sides of the same fingertip. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0016] Figure 3 It is a structural schematic diagram of the fingertip placement groove in the present invention.

[0017] Figure 4 It is a schematic diagram of the split structure of the fingertip placement groove and the end of the mounting tube in the present invention.

[0018] Figure 5 It is a structural schematic diagram of the angle adjustment mechanism in the present invention.

[0019] Figure 6 It is a structural schematic diagram of the release mechanism in the present invention.

[0020] Figure 7 It is a schematic diagram of the structure of the locking release component in the present invention.

[0021] Figure 8 It is a schematic structural diagram of the abutment block in the present invention.

[0022] Fig. 9 It is a structural schematic diagram of the energy storage mechanism in the present invention.

[0023] Fig.10 It is a schematic structural diagram of the middle column in the energy storage mechanism of the present invention.

[0024] Fig.11 It is a schematic diagram of the installation of the locking motor and the locking column in the present invention.

[0025] In the figure: 1, mounting tube; 10, locking hole; 11, strip groove 1; 12, strip groove 2; 2, fingertip placement groove; 20, blood collection needle groove; 22, mounting groove; 23, slide rod; 24, positioning hole; 25, matching slide block; 26, locking pin; 3, pressing cylinder; 4, angle adjustment mechanism; 40, ball frame; 41, mounting cylinder; 42, blood collection needle body; 43, rotating rod; 45, rotating handle; 46, mounting seat; 47, connecting flange; 48, matching slide column; 49, return spring; 410, ball joint 1; 411, intermediate rod; 412, ball joint 2; 5 , release mechanism; 50, connecting cylinder; 51, matching disk one; 52, lock release assembly; 520, installation disk; 521, wedge block; 522, abutment block; 5220, roller; 523, plug-in column; 524, matching convex strip; 525, tensioning spring; 53, telescopic motor; 54, matching disk two; 540, matching block; 6, energy storage mechanism; 60, matching disk three; 600, extension column; 61, matching column; 62, pressure plate; 63, matching strip; 64, intermediate column; 65, energy storage spring; 66, threaded column; 67, locking motor; 68, locking column. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0027] like Figure 1 , Figure 2 , Figure 5As shown, a device for adjusting the needle tip angle of a blood collection needle comprises a mounting tube 1, wherein a fingertip placement groove 2 is provided at the end of the mounting tube 1, wherein the fingertip placement groove 2 is movably installed with the end of the mounting tube 1, wherein an angle adjustment mechanism 4 is provided at the end of the mounting tube 1, wherein a blood collection needle body 42 is inserted and installed inside the angle adjustment mechanism 4, and blood collection needle grooves 20 are provided on both sides of the inside of the fingertip placement groove 2. The angle adjustment mechanism 4 comprises a rotating rod 43 rotatably arranged at the end of the mounting tube 1, wherein a rotating handle 45 is provided on the rotating rod 43, wherein a spherical frame 40 is provided at the axial part of the mounting tube 1, wherein a mounting cylinder 41 is provided inside the spherical frame 40, wherein matching sliding columns 48 are symmetrically provided on the back of the spherical frame 40, wherein a mounting seat 46 is slidably installed on the matching sliding column 48, wherein connecting flanges 47 are provided on both sides of the mounting seat 46, wherein the connecting flange 47 is slidably installed with the matching sliding column 48, wherein the blood collection needle body 42 is inserted and installed with the angle adjustment mechanism 4, wherein a blood collection needle groove 20 is provided on both sides of the inside of the fingertip placement groove 2. The angle adjustment mechanism 4 comprises a rotating rod 43 rotatably arranged at the end of the mounting tube 1, wherein a rotating handle 45 is provided on the rotating rod 43, wherein a spherical frame 40 is provided with a spherical frame 40 at the axial part of the mounting tube 1, wherein a mounting cylinder 41 is provided inside the spherical frame 40, wherein a matching sliding column 48 is symmetrically provided on the back of the spherical frame 40, wherein a mounting seat 46 is slidably installed on the matching sliding column 4 The end of the blood needle body 42 is inserted into the center of the mounting seat 46, and a return spring 49 is arranged between the mounting seat 46 and the spherical frame 40. A ball joint 410 is arranged on the side of the mounting seat 46 away from the blood collection needle body 42. The ball joint 410 is connected to an intermediate rod 411, and the intermediate rod 411 is connected to a ball joint 412. The ball joint 412 is connected to a release mechanism 5, and the release mechanism 5 is connected to an energy storage mechanism 6. The outer side of the mounting tube 1 is sleeved with a pressing cylinder 3, and the pressing cylinder 3 is connected to the energy storage mechanism 6.

[0028] Specifically, when in use, first place the finger waiting for blood collection in the fingertip placement slot 2, adjust the position of the fingertip placement slot 2 so that the blood collection needle body 42 points to the fingertip flank, then rotate the spherical frame 40 in combination with the rotating handle 45, so that the spherical frame 40 and the blood collection needle body 42 inside the mounting tube 41 rotate, adjust to a suitable puncture angle and point to the blood collection site, after the energy storage mechanism 6 stores energy, driven by the release mechanism 5, the power is released on the ball joint 410, the ball joint 410 combines with the middle rod 411 and the ball joint 2 412 to transmit the power to the mounting seat 46, the mounting seat 46 cooperates with the connecting flanges 47 on both sides to slide along the cooperating sliding column 48, at this time driving the blood collection needle on the mounting seat 46 to extend along the mounting tube 41, thereby performing the blood collection puncture operation.

[0029] More specifically, after the blood collection needle body 42 is used for blood collection, the blood collection needle body 42 is taken out from the installation tube 41 in combination with the forceps, and when it is used again, a new blood collection needle body 42 is reinstalled in combination with the sterilized forceps.

[0030] Further, such as Figure 3 , Figure 4As shown, a mounting groove 22 is provided at the end of the mounting tube 1, a slide bar 23 is provided in the mounting groove 22, a matching slider 25 is provided on the side of the fingertip placement groove 2 facing the mounting tube 1, a spring column is provided between the matching slider 25 and the fingertip placement groove 2, the matching slider 25 and the slide bar are slidably installed, positioning holes 24 are continuously arranged on the upper side of the mounting groove 22, and a locking pin 26 is provided at the position of the fingertip placement groove 2 corresponding to the positioning hole 24.

[0031] Specifically, since diabetics need to collect blood samples regularly to monitor blood sugar changes, they cannot continuously puncture the same part for a short time to collect blood samples. The fingertip placement slot 2 is slidably installed with the end of the mounting tube 1 by cooperating with the slider 25 and the slide column. When in use, the fingertip placement slot 2 is gently pulled out in the direction away from the end of the mounting tube 1, which will cause the locking pin 26 to disengage from the positioning hole 24. At this time, the fingertip placement slot 2 can be adjusted along the mounting slot 22, so that the blood collection needle body 42 is adjusted to the other side of the fingertip placement slot 2, thereby performing blood collection operations on different sides of the same fingertip. After the position adjustment of the fingertip placement slot 2 is completed, the fingertip placement slot 2 is released, and the locking pin 26 is re-matched with the positioning hole 24 under the action of the spring column, thereby locking the position of the fingertip placement slot 2.

[0032] Further, such as Figure 6 As shown, the release mechanism 5 includes locking holes 10 and a strip groove 11 evenly arranged on the side wall of the mounting tube 1, a mating disk 2 54 is slidably installed in the strip groove 11, a mating block 540 is arranged on the edge of the mating disk 2 54, the mating block 540 cooperates with the strip groove 11, a mating disk 1 51 is matingly installed in the mounting tube 1, the mating disk 1 51 is connected to the ball joint 2 412, a connecting tube 50 is fixedly arranged between the mating disk 1 51 and the mating disk 2 54, a telescopic motor 53 is fixedly arranged in the connecting tube 50, and the telescopic motor 53 is connected to the locking release component 52.

[0033] Specifically, when the energy storage mechanism 6 completes energy storage and acts on the release mechanism 5, the locking release assembly 52 is opened by controlling the telescopic motor 53. At this time, the connecting tube 50 and the mounting tube 1 are out of the locked state, and the connecting tube 50 and the matching disk 1 51 and the matching disk 2 54 move toward the angle adjustment mechanism 4 under the action of the energy storage mechanism 6, and the blood collection needle body 42 in the angle adjustment mechanism 4 is extended through the matching disk 1 51 to perform the blood collection operation.

[0034] Further, such as Figure 7As shown, the locking release component 52 includes a mounting plate 520 connected to the output shaft of the telescopic motor 53, and a plurality of wedge blocks 521 are evenly arranged on the mounting plate 520, and the wedge blocks 521 are arranged corresponding to the locking holes 10 on the mounting tube 1, and a plug-in column 523 is inserted on the side wall of the connecting tube 50, and the plug-in column 523 corresponds to the locking hole 10, and an abutment block 522 is provided at one end of the plug-in column 523 facing the inside of the connecting tube 50, and the abutment block 522 cooperates with the wedge surface of the wedge block 521, and a tensioning spring 525 is sleeved on the plug-in column 523 between the abutment block 522 and the connecting tube 50, and a matching convex strip 524 is provided on the edge of the plug-in column 523, and the plug-in column 523 is plugged into the connecting tube 50 through the matching convex strip 524.

[0035] Specifically, when the telescopic motor 53 drives the wedge block 521 on the mounting plate 520 to move away from the abutment block 522, the abutment block 522 will move toward the inside of the connecting tube 50 under the action of the tension spring 525, and the end of the plug-in column 523 will be separated from the locking hole 10 on the mounting tube 41, thereby releasing the locking state with the mounting tube 1. In order to ensure that the inclined surface of the abutment block 522 connected to the plug-in column 523 always faces the inclined surface of the wedge block 521, a matching convex strip 524 is provided on the plug-in column 523, so that the plug-in column 523 and the abutment block 522 will not rotate relative to the connecting tube 50. When the telescopic motor 53 is shortened, it will drive the plug-in column 523 to extend outward, so that the plug-in column 523 and the locking hole 10 on the mounting tube 1 cooperate with each other, completing the locking operation of the connecting tube 50.

[0036] Further, such as Figure 8 As shown, the inner side of the abutment block 522 is hollow, and the abutment block 522 is rotatably mounted with multiple groups of rollers 5220 on one side of the abutment block 522 facing the wedge block 521 , and the abutment block 522 is in contact with the wedge surface through the rollers 5220 .

[0037] Specifically, the contact block 522 is provided with a roller 5220 that contacts the wedge surface of the wedge block 521 , thereby reducing the friction resistance between the contact block 522 and the wedge surface.

[0038] Further, such as Fig. 9 , Fig.10 , Fig.11As shown, the energy storage mechanism 6 includes an intermediate column 64 arranged inside the mounting tube 1, and a threaded column 66 is arranged at the end of the intermediate column 64. The intermediate column 64 is rotatably connected to the inside of the mounting tube 1 through the threaded column 66. The intermediate column 64 points to the direction of the release mechanism 5 and is sequentially sleeved with a matching plate 3 60 and a pressure plate 62. The outer side of the mounting tube 1 is evenly provided with strip grooves 2 12. The edge of the matching plate 3 60 is provided with an extension column 600 corresponding to the strip groove 2 12. The strip groove 2 12 is provided with a matching column 61. The extension column 600 and the matching column 61 are connected to each other. The pressure plate 62 is slidably installed, and a matching strip 63 is provided on the edge of the matching strip 63. The matching strip 63 is slidably installed with one of the strip grooves 12. The end of the strip groove 12 is symmetrically provided with a locking motor 67. The locking motor 67 is connected with a locking column 68. The side of the matching strip 63 is provided with a pin hole that cooperates with the matching column 61. An energy storage spring 65 is provided between the pressure plate 62 and the matching plate 2 54 in the energy storage mechanism 6. The energy storage spring 65 is sleeved on the outside of the middle column 64. The edge of the pressing cylinder 3 is contacted and installed with the end of the extension column 600.

[0039] Specifically, when energy storage is required, first determine that the release mechanism 5 and the mounting tube 1 remain in a locked state, and then control the pressing cylinder 3 to move downward so that the mating disk 3 60 acts on the pressure plate 62, driving the pressure plate 62 to compress the energy storage spring 65. When the pressure plate 62 reaches the position of the locking motor 67, the locking motor 67 cooperates with the locking column 68 to lock the mating strip 63 on the edge of the pressure plate 62, thereby locking the state of the pressure plate 62 and the energy storage spring 65. At this time, the pressing cylinder 3 is retracted, and the end of the pressing cylinder 3 and the extension column 600 on the edge of the mating disk 3 60 are magnetically attracted to each other, driving the mating disk 3 60 to retreat to the top of the mounting tube 1 together. When the energy storage mechanism 6 needs to be released, the release mechanism 5 is unlocked by controlling the electric control button on the mounting tube 1, so that the energy of the energy storage spring 65 is released on the release mechanism 5, driving the release mechanism 5 to act on the blood collection needle body 42 in the angle adjustment mechanism 4 to perform blood collection puncture operation.

[0040] The working principle of the embodiment of the present invention is: like Figure 1-Figure 11As shown, when in use, first place the finger waiting for blood collection in the fingertip placement slot 2, adjust the position of the fingertip placement slot 2 so that the blood collection needle body 42 points to the fingertip flank, then rotate the spherical frame 40 in combination with the rotating handle 45, so that the spherical frame 40 and the blood collection needle body 42 inside the mounting tube 41 are rotated, adjusted to a suitable puncture angle and pointed to the blood collection site, after the energy storage mechanism 6 stores energy, driven by the release mechanism 5, the power is released on the ball joint 410, the ball joint 410 is combined with the middle rod 411 and the ball joint 2 412 to transmit the power to the mounting seat 46, the mounting seat 46 cooperates with the connecting flanges 47 on both sides to slide along the cooperating sliding column 48, at this time, the blood collection needle on the mounting seat 46 is driven to extend along the mounting tube 41, thereby performing the blood collection puncture operation. When the energy storage mechanism 6 completes energy storage and acts on the release mechanism 5, the locking release assembly 52 is opened by controlling the telescopic motor 53. At this time, the connecting tube 50 and the mounting tube 1 are out of the locked state. The connecting tube 50 and the matching disk 1 51 and the matching disk 2 54 move toward the angle adjustment mechanism 4 under the action of the energy storage mechanism 6, and the blood collection needle body 42 in the angle adjustment mechanism 4 is extended through the matching disk 1 51 to perform the blood collection operation. When energy storage is required, first determine that the release mechanism 5 and the mounting tube 1 remain in a locked state, and then control the pressing cylinder 3 to move downward so that the matching disk 3 60 acts on the pressure plate 62, driving the pressure plate 62 to compress the energy storage spring 65. When the pressure plate 62 reaches the position of the locking motor 67, the locking motor 67 cooperates with the locking column 68 to lock the matching strip 63 on the edge of the pressure plate 62, thereby locking the state of the pressure plate 62 and the energy storage spring 65. At this time, the pressing cylinder 3 is retracted, and the end of the pressing cylinder 3 and the extension column 600 on the edge of the matching disk 3 60 are magnetically attracted to each other, driving the matching disk 3 60 to retreat to the top of the mounting tube 1 together. When the energy storage mechanism 6 needs to be released, the release mechanism 5 is unlocked by controlling the electric control button on the mounting tube 1, so that the energy of the energy storage spring 65 is released on the release mechanism 5, driving the release mechanism 5 to act on the blood collection needle body 42 in the angle adjustment mechanism 4 to perform blood collection puncture operation.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Any reference numeral in a claim shall not be regarded as limiting the claim involved.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A blood collection needle tip angle adjustment device, comprising a mounting tube (1), wherein the end of the mounting tube (1) is provided with a fingertip placement groove (2), wherein the fingertip placement groove (2) is movably mounted on the end of the mounting tube (1), characterized in that: An angle adjustment mechanism (4) is provided at the end of the mounting tube (1), a blood collection needle body (42) is inserted and installed inside the angle adjustment mechanism (4), and blood collection needle grooves (20) are provided on both sides of the inside of the fingertip placement groove (2); The angle adjustment mechanism (4) comprises a rotating rod (43) rotatably arranged at the end of the mounting tube (1), the rotating rod (43) being provided with a rotating handle (45), the rotating rod (43) being provided with a spherical frame (40) at the axial position of the mounting tube (1), the spherical frame (40) being provided with a mounting tube (41) inside, the back of the spherical frame (40) being symmetrically provided with a matching sliding column (48), a mounting seat (46) being slidably mounted on the matching sliding column (48), connecting flanges (47) being provided on both sides of the mounting seat (46), the connecting flanges (47) being slidably mounted on the matching sliding column (48), the blood collection needle The end of the body (42) is inserted into the center of the mounting seat (46), a return spring (49) is arranged between the mounting seat (46) and the spherical frame (40), and a ball joint (410) is arranged on the side of the mounting seat (46) away from the blood collection needle body (42), the ball joint (410) is connected to an intermediate rod (411), the intermediate rod (411) is connected to a ball joint (412), the ball joint (412) is connected to a release mechanism (5), the release mechanism (5) is connected to an energy storage mechanism (6), and a pressing cylinder (3) is sleeved on the outer side of the mounting tube (1), and the pressing cylinder (3) is connected to the energy storage mechanism (6).

2. The blood collection needle tip angle adjustment device according to claim 1, characterized in that: The end of the mounting tube (1) is provided with a mounting groove (22), a slide bar (23) is provided in the mounting groove (22), a matching slide bar (25) is provided on the side of the fingertip placement groove (2) facing the mounting tube (1), a spring column is provided between the matching slide bar (25) and the fingertip placement groove (2), the matching slide bar (25) and the slide bar (23) are slidably mounted, positioning holes (24) are continuously arranged on the upper side of the mounting groove (22), and a locking pin (26) is provided at a position on the fingertip placement groove (2) corresponding to the positioning hole (24).

3. The blood collection needle tip angle adjustment device according to claim 1, characterized in that: The release mechanism (5) comprises locking holes (10) and a strip groove (11) uniformly arranged on the side wall of the mounting tube (1); a second mating disc (54) is slidably mounted in the first strip groove (11); a mating block (540) is arranged at the edge of the second mating disc (54); the mating block (540) is mated with the first strip groove (11); a mating disc (51) is mated in the mounting tube (1); the mating disc (51) is connected to the second ball joint (412); a connecting tube (50) is fixedly arranged between the first mating disc (51) and the second mating disc (54); a telescopic motor (53) is fixedly arranged in the connecting tube (50); and the telescopic motor (53) is connected to a lock release assembly (52).

4. The blood collection needle tip angle adjustment device according to claim 3, characterized in that: The lock release assembly (52) comprises a mounting plate (520) connected to the output shaft of the telescopic motor (53), a plurality of wedge blocks (521) are evenly arranged on the mounting plate (520), the wedge blocks (521) are arranged corresponding to the locking holes (10) on the mounting tube (1), a plug-in column (523) is plugged into the side wall of the connecting tube (50), the plug-in column (523) corresponds to the locking hole (10), and the plug-in column (523) faces the locking hole (10). An abutment block (522) is provided at one end inside the connecting tube (50), the abutment block (522) cooperates with the wedge-shaped surface of the wedge-shaped block (521), a tensioning spring (525) is sleeved on a plug-in column (523) between the abutment block (522) and the connecting tube (50), a matching convex strip (524) is provided on the edge of the plug-in column (523), and the plug-in column (523) is plugged into the connecting tube (50) via the matching convex strip (524).

5. The blood collection needle tip angle adjustment device according to claim 4, characterized in that: The inner side of the abutment block (522) is hollow, and a plurality of groups of rollers (5220) are rotatably mounted on one side of the abutment block (522) facing the wedge-shaped block (521), and the abutment block (522) is in contact with the wedge-shaped surface via the rollers (5220).

6. The blood collection needle tip angle adjustment device according to claim 1, characterized in that: The energy storage mechanism (6) comprises an intermediate column (64) arranged inside the mounting tube (1), a threaded column (66) being arranged at the end of the intermediate column (64), the intermediate column (64) being rotatably connected to the inside of the mounting tube (1) via the threaded column (66), a matching plate (60) and a pressure plate (62) being sleeved in sequence in the direction of the intermediate column (64) pointing to the release mechanism (5), strip grooves (12) being evenly arranged on the outside of the mounting tube (1), an extension column (600) being arranged at the edge of the matching plate (60) corresponding to the strip grooves (12), a matching column (61) being arranged inside the strip grooves (12), the extension column (600) and the matching column (61) being sleeved in a direction of the release mechanism (5) in sequence, ), a mating strip (63) is provided on the edge of the pressure plate (62), the mating strip (63) is slidably installed with one of the strip grooves (12), a locking motor (67) is symmetrically provided at the end of the strip groove (12), the locking motor (67) is connected to a locking column (68), a pin hole that cooperates with the mating column (61) is provided on the side of the mating strip (63), an energy storage spring (65) is provided between the pressure plate (62) and the mating plate (54) in the energy storage mechanism (6), the energy storage spring (65) is sleeved on the outside of the middle column (64), and the edge of the pressing cylinder (3) is contacted with the end of the extension column (600).

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