Needle removal device and blood collection robot

Abstract

The present invention provides a needle removal device and a blood collection robot, which relate to the field of blood collection technology. The device comprises a base and a fixing member for fixing a blood collection needle. The fixing member is provided with a first clamping member, and the base is provided with a second clamping member and a driving member connected to the second clamping member. The driving member can drive the second clamping member to engage or disengage with the first clamping member, thereby achieving the technical effect of convenient needle removal.

Description

Technical Field

[0001] The present invention relates to the technical field of blood collection, and in particular to a needle removal device and a blood collection robot. Background Art

[0002] Blood drawing is the process of medical personnel collecting blood samples through veins or arteries for testing or other related needs. Usually, collecting blood samples through veins is the more common method.

[0003] With the continuous progress and development of science and technology, blood collection robots have emerged. Existing blood collection robots can automatically perform blood collection operations. After applying blood collection robots, medical institutions and other related institutions can facilitate blood collection work to a certain extent.

[0004] However, the blood collection needle on the blood collection robot is difficult to fix, and it is also difficult to remove the blood collection needle during subsequent use.

[0005] Therefore, providing a needle removal device and a blood collection robot that are convenient for removing the needle has become an important technical problem to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of the present invention is to provide a needle removal device and a blood collection robot to alleviate the technical problem of the inconvenience of needle removal in the prior art.

[0007] In a first aspect, an embodiment of the present invention provides a needle removal device, comprising a base and a fixing member for fixing a blood collection needle, wherein the fixing member is provided with a first clamping member, and the base is provided with a second clamping member and a driving member connected to the second clamping member;

[0008] The driving member can drive the second clamping member and the first clamping member to engage or separate.

[0009] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein the base is provided with a groove for accommodating the second clamping member and a first channel communicating with the groove, the driving member is installed in the first channel, and the first clamping member can extend into the groove to engage with the second clamping member;

[0010] Driven by the driving member, the second clamping member can reciprocate along the length direction of the first channel.

[0011] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein the driving member includes a driving rod and a return spring sleeved on the driving rod, the driving rod includes a first end and a second end opposite to each other along its length, the first end is used to connect with the second clamping member, the return spring is sleeved on the second end, and a limiting ring is fixedly sleeved on the outer wall of the driving rod;

[0012] The side of the base located at the first channel for the driving rod to be inserted is a first side wall, and the portion of the return spring located between the limiting ring and the first side wall is in a compressed state.

[0013] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein the first clamping member includes a connecting rod and a limiting rod for connecting to the second clamping member;

[0014] The limiting rod is fixedly arranged at the bottom of the fixing member through the connecting rod, and the limiting rod is L-shaped or ⊥-shaped after being connected to the connecting rod;

[0015] Alternatively, both ends of the limiting rod are fixed to the bottom of the fixing member through the connecting rod, and the limiting rod is U-shaped after being connected to the connecting rod.

[0016] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein the second clamping member includes a mounting seat fixedly connected to the driving rod and a hook fixed to the mounting seat;

[0017] The mounting seat is provided with a second channel for inserting the driving rod, and the mounting seat is provided with a pin, which extends into the second channel and is fixedly connected to the driving rod;

[0018] When the reset spring drives the driving rod to reset, the hook is engaged with the limiting rod.

[0019] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein a limiting hole is opened on the above-mentioned base, and the limiting hole is connected to the groove, and the end of the pin that is not inserted into the mounting seat is located in the limiting hole.

[0020] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein an elastic member for detaching the fixing member from the base is provided on the base.

[0021] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein the elastic member includes a thrust spring; a through hole is formed on the base, a limiting platform is provided in the through hole, and the limiting platform divides the through hole into a first accommodating chamber and a second accommodating chamber, wherein the second accommodating chamber is provided adjacent to the fixing member;

[0022] A connecting piece is provided in the through hole, and the connecting piece extends from the first accommodating chamber into the second accommodating chamber, and a thrust sleeve is fixedly provided on one end of the connecting piece extending into the second accommodating chamber. The thrust spring is located in the second accommodating chamber, and one end of the thrust spring abuts against the limit platform, and the other end abuts against the thrust sleeve. The thrust spring always has a tendency to cause the fixing piece to separate from the base.

[0023] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein a plurality of positioning members are provided on the base, and positioning holes adapted to the positioning members are provided on the fixing member.

[0024] In a second aspect, an embodiment of the present invention provides a blood collection robot comprising the needle removal device.

[0025] Beneficial effects:

[0026] An embodiment of the present invention provides a needle removal device, comprising a base and a fixing member for fixing a blood collection needle, wherein a first clamping member is provided on the fixing member, and a second clamping member and a driving member connected to the second clamping member are provided on the base; the driving member can drive the second clamping member to engage or separate with the first clamping member.

[0027] During use, the second clamping member is driven by the driving member to separate the second clamping member from the first clamping member, so that the fixing member fixing the blood collection needle can be separated from the base, thereby conveniently separating the blood collection needle from the base and completing the needle removal work.

[0028] The present invention provides a blood sampling robot including a needle removal device. The blood sampling robot has the above advantages over the prior art, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 A schematic diagram of the structure of a blood collection needle installed on a needle removal device provided by an embodiment of the present invention;

[0031] Figure 2 A top view of a blood collection needle installed on the needle removal device provided by an embodiment of the present invention;

[0032] Figure 3 for Figure 2 A-A sectional view in the figure;

[0033] Figure 4 for Figure 2 The BB section view in the figure;

[0034] Figure 5 A schematic diagram of the connection between the first clamping member and the second clamping member in the needle removal device provided in an embodiment of the present invention;

[0035] Figure 6 A schematic structural diagram of a base in a needle removal device provided in an embodiment of the present invention;

[0036] Figure 7 A schematic diagram of the partial structure of the blood collection robot provided in an embodiment of the present invention.

[0037] icon:

[0038] 100 - base; 101 - first side wall; 110 - second clamping member; 111 - hook; 112 - mounting seat; 113 - second channel; 120 - driving member; 121 - driving rod; 122 - return spring; 123 - limiting ring; 130 - groove; 131 - limiting hole; 140 - first channel; 150 - pin; 151 - elastic member; 160 - through hole; 161 - limiting platform; 170 - thrust sleeve; 180 - positioning member; 190 - connecting member;

[0039] 200 - fixing member; 210 - first clamping member; 211 - connecting rod; 212 - limiting rod; 220 - positioning hole;

[0040] 300-blood collection needle; 400-actuator. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be understood that the terms "length", "up", "down", "vertical", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0044] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," and "fixed" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0045] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0046] See also Figure 1 and Figure 2 As shown, this embodiment provides a needle removal device, including a base 100 and a fixing member 200 for fixing a blood collection needle 300, a first clamping member 210 is provided on the fixing member 200, a second clamping member 110 and a driving member 120 connected to the second clamping member 110 are provided on the base 100; the driving member 120 can drive the second clamping member 110 and the first clamping member 210 to be engaged or separated.

[0047] During use, the second clamping member 110 is driven by the driving member 120 to separate the second clamping member 110 from the first clamping member 210, so that the fixing member 200 fixing the blood collection needle 300 can be separated from the base 100, thereby conveniently separating the blood collection needle 300 from the base 100 and completing the needle removal work.

[0048] Among them, when using the needle removal device, the base 100 of the needle removal device will be connected to the actuator 400 of the blood collection robot, and in normal working conditions, in the vertical direction, the base 100 is located above the fixing part 200, that is, the fixing part 200 is located below the base 100. When the first clamping part 210 is separated from the second clamping part 110, the fixing part 200 will detach from the base 100 under the action of its own weight.

[0049] It should be noted that the "snapping" connection relationship between the first clamping member 210 and the second clamping member 110 is a snap-on connection in a broad sense, as long as the fixing member 200 can be pulled onto the base 100 through the connection relationship between the first clamping member 210 and the second clamping member 110, for example: the first clamping member 210 is a hole, and the second clamping member 110 can be inserted into this hole, so that the fixing member 200 can be pulled onto the base 100.

[0050] See also Figure 3 and Figure 4 As shown, in an optional scheme of this embodiment, a groove 130 for accommodating the second clamping member 110 and a first channel 140 connected to the groove 130 are provided on the base 100, the driving member 120 is installed in the first channel 140, and the first clamping member 210 can extend into the groove 130 and engage with the second clamping member 110; under the drive of the driving member 120, the second clamping member 110 can move back and forth along the length direction of the first channel 140.

[0051] The base 100 is provided with a groove 130 and a first channel 140 , which are capable of being connected and forming an L-shape after being connected.

[0052] The driving member 120 can reciprocate along the length direction of the first channel 140. During the movement of the driving member 120, it will drive the second clamping member 110 to move. The second clamping member 110 will move along the length direction of the first channel 140 in the groove 130, so that the second clamping member 110 can be engaged or separated with the first clamping member 210.

[0053] Specifically, when the driving member 120 is extended into the groove 130 by an external force, the driving member 120 drives the second clamping member 110 to separate from the first clamping member 210, thereby allowing the fixing member 200 to be detached from the base 100. When the driving member 120 moves in the direction of being pulled out of the groove 130, it can drive the second clamping member 110 to connect with the first clamping member 210, thereby fixing the fixing member 200 to the base 100.

[0054] See also Figure 4 and Figure 5As shown, in an optional scheme of this embodiment, the driving member 120 includes a driving rod 121 and a return spring 122 sleeved on the driving rod 121, the driving rod 121 includes a first end and a second end opposite to each other along its length direction, the first end is used to connect with the second clamping member 110, the return spring 122 is sleeved on the second end, and a limiting ring 123 is fixedly sleeved on the outer wall of the driving rod 121; the base 100 is located on the side of the first channel 140 for the driving rod 121 to be inserted, which is the first side wall 101, and the part of the return spring 122 located between the limiting ring 123 and the first side wall 101 is in a compressed state.

[0055] Specifically, the driving member 120 includes a driving rod 121 and a return spring 122. The driving rod 121 applies a pre-tightening force to the second clamping member 110 through the return spring 122, and maintains the connection between the second clamping member 110 and the first clamping member 210 when there is no other external force.

[0056] Specifically, the first end of the driving rod 121 passes through the first channel 140 and is connected to the second clamping member 110 in the groove 130, and the second end of the driving rod 121 is sleeved with a return spring 122, and the part of the driving rod 121 outside the first channel 140 and the groove 130 is fixed with a limiting ring 123, and a return spring 122 is provided between the limiting ring 123 and the base 100 along the direction in which the driving rod 121 is inserted into the first channel 140, and the return spring 122 between them is in a compressed state. The elastic force of the return spring 122 makes the driving rod 121 tend to be pulled out of the first channel 140, so that the second clamping member 110 has a pre-tightening force connected to the first clamping member 210, thereby preventing the first clamping member 210 from being detached from the second clamping member 110 at will.

[0057] The end of the return spring 122 may abut against the limiting ring 123 , or the middle portion of the return spring 122 , as long as there is a compressed return spring 122 between the limiting ring 123 and the first side wall 101 .

[0058] The side wall of the base 100 corresponding to the direction in which the limiting ring 123 is inserted into the first channel 140 along the driving rod 121 is the first side wall 101 .

[0059] See also Figure 3 and Figure 5 As shown, in the optional scheme of this embodiment, the first clamping member 210 includes a connecting rod 211 and a limiting rod 212 for connecting to the second clamping member 110; the limiting rod 212 is fixedly set at the bottom of the fixing member 200 through the connecting rod 211, and the limiting rod 212 is L-shaped or ⊥-shaped after being connected to the connecting rod 211; or, both ends of the limiting rod 212 are fixedly set at the bottom of the fixing member 200 through the connecting rod 211, and the limiting rod 212 is U-shaped after being connected to the connecting rod 211.

[0060] Specifically, the first clamping member 210 includes a connecting rod 211 and a limiting rod 212 . The limiting rod 212 is connected to the bottom of the fixing member 200 through the connecting rod 211 and is connected to the second clamping member 110 through the limiting rod 212 , thereby fixing the fixing member 200 on the base 100 .

[0061] See also Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, in the optional scheme of this embodiment, the second clamping member 110 includes a mounting base 112 fixedly connected to the driving rod 121 and a hook 111 fixed to the mounting base 112; a second channel 113 for inserting the driving rod 121 is opened on the mounting base 112, and a pin 150 is provided on the mounting base 112, and the pin 150 extends into the second channel 113 and is fixedly connected to the driving rod 121; when the reset spring 122 drives the driving rod 121 to reset, the hook 111 is engaged with the limiting rod 212.

[0062] Specifically, the second clamping member 110 includes a mounting seat 112 and a hook 111 . The mounting seat 112 is pin-connected to the driving rod 121 via a pin 150 . The hook 111 is fixed on the mounting seat 112 and can be connected to the limiting rod 212 .

[0063] Among them, when the driving rod 121 extends into the groove 130, it can drive the hook 111 on the mounting seat 112 away from the limiting rod 212, thereby realizing the uncoupling of the first clamping member 210 and the second clamping member 110, so that the fixing member 200 can be detached from the base 100; when the driving rod 121 is pulled out from the first channel 140 driven by the return spring 122, the driving rod 121 will drive the hook 111 on the mounting seat 112 to move toward the limiting rod 212, so that the hook 111 is connected to the limiting rod 212, thereby fixing the fixing member 200 on the base 100, and the elastic force of the return spring 122 will keep the hook 111 continuously connected to the limiting rod 212.

[0064] Among them, a second channel 113 is opened on the mounting seat 112, and the driving rod 121 can pass through the second channel 113, and when the driving rod 121 is pinned to the mounting seat 112, the pin 150 can pass through the second channel 113 to ensure the stability of the connection between the mounting seat 112 and the driving rod 121.

[0065] See also Figure 3 and Figure 4 As shown, in an optional solution of this embodiment, a limiting hole 131 is opened on the base 100, and the limiting hole 131 is connected to the groove 130, and the end of the pin 150 not inserted into the mounting seat 112 is located in the limiting hole 131.

[0066] Specifically, a limiting hole 131 is also provided on the base 100, and the limiting hole 131 is connected to the groove 130. The limiting hole 131 can be located below the mounting seat 112, or can be located on both sides of the mounting seat 112 along the length direction of the driving rod 121 (the connecting lines on both sides are perpendicular to the axis of the driving rod 121).

[0067] Among them, when the mounting seat 112 is pinned to the driving rod 121, a portion of the pin 150 will be exposed outside the mounting seat 112, and this portion will be located inside the limiting hole 131. When the driving rod 121 moves, the pin 150 will reciprocate in the limiting hole 131, thereby limiting the maximum movement distance of the driving rod 121, so that there will be no violent collision between the limiting rod 212 and the hook 111 driven by the driving rod 121, thereby avoiding damage between the hook 111 and the limiting rod 212 due to excessive force.

[0068] See also Figure 3 、 Figure 5 and Figure 6 As shown, in an optional solution of this embodiment, an elastic member 151 for detaching the fixing member 200 from the base 100 is provided on the base 100 .

[0069] Specifically, the elastic member 151 provided on the base 100 has a tendency to cause the fixing member 200 to detach from the base 100. When the fixing member 200 is fixedly connected to the base 100, the elastic member 151 is in a compressed state. When the first clamping member 210 is separated from the second clamping member 110, the elastic member 151 will drive the fixing member 200 to detach from the base 100, ensuring that the fixing member 200 is completely detached from the base 100.

[0070] See also Figure 3 、 Figure 5 and Figure 6 As shown, in the optional scheme of this embodiment, the elastic member 151 includes a thrust spring; a through hole 160 is opened on the base 100, and a limiting platform 161 is arranged in the through hole 160, and the limiting platform 161 divides the through hole 160 into a first accommodating chamber and a second accommodating chamber, wherein the second accommodating chamber is arranged adjacent to the fixing member 200; a connecting member 190 is arranged in the through hole 160, and the connecting member 190 extends from the first accommodating chamber into the second accommodating chamber, and a thrust sleeve 170 is fixedly provided at one end of the connecting member 190 extending into the second accommodating chamber, and the thrust spring is located in the second accommodating chamber, and one end of the thrust spring abuts against the limiting platform 161, and the other end abuts against the thrust sleeve 170, and the thrust spring always has a tendency to make the fixing member 200 separate from the base 100.

[0071] Among them, the connecting member 190 can be a bolt, which extends into the first accommodating chamber and the second accommodating chamber. A thrust sleeve 170 threadedly connected to the bolt is provided in the second accommodating chamber, and a thrust spring is provided between the thrust sleeve 170 and the limit platform 161. Through the action of the thrust spring, the thrust sleeve 170 can push the fixing member 200, so that the fixing member 200 has a tendency to separate from the base 100.

[0072] See also Figure 1 、 Figure 2 、 Figure 5 and Figure 6 As shown, in an optional solution of this embodiment, a plurality of positioning members 180 are provided on the base 100 , and a positioning hole 220 adapted to the positioning members 180 is provided on the fixing member 200 .

[0073] The positioning hole 220 cooperates with the positioning member 180 to ensure that the fixing member 200 is positioned correctly, and the blood collection needle 300 is positioned correctly.

[0074] See also Figure 7 As shown, this embodiment provides a blood collection robot including a needle removal device. The needle removal device is provided on the actuator 400 of the blood collection robot. The blood collection robot has the above advantages compared with the prior art, which will not be described in detail here.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A needle removal device, characterized in that: It comprises a base (100) and a fixing member (200) for fixing a blood collection needle (300), wherein the fixing member (200) is provided with a first clamping member (210), and the base (100) is provided with a second clamping member (110) and a driving member (120) connected to the second clamping member (110); The driving member (120) is capable of driving the second clamping member (110) and the first clamping member (210) to engage or disengage. The base (100) is provided with a groove (130) for accommodating the second clamping member (110) and a first channel (140) communicating with the groove (130); the driving member (120) is installed in the first channel (140); the first clamping member (210) can extend into the groove (130) and engage with the second clamping member (110); under the drive of the driving member (120), the second clamping member (110) can reciprocate along the length direction of the first channel (140); The driving member (120) includes a driving rod (121) and a return spring (122) sleeved on the driving rod (121), the driving rod (121) includes a first end and a second end opposite to each other along its length direction, the first end is used to connect with the second clamping member (110), the return spring (122) is sleeved on the second end, and a limit ring (123) is fixedly sleeved on the outer wall of the driving rod (121); the side of the base (100) located in the first channel (140) for the driving rod (121) to be inserted is the first side wall (101), and the portion of the return spring (122) located between the limit ring (123) and the first side wall (101) is in a compressed state; The first clamping member (210) includes a connecting rod (211) and a limiting rod (212) for connecting to the second clamping member (110); the limiting rod (212) is fixedly arranged at the bottom of the fixing member (200) through the connecting rod (211), and the limiting rod (212) is L-shaped or ⊥-shaped after being connected to the connecting rod (211); or, both ends of the limiting rod (212) are fixedly arranged at the bottom of the fixing member (200) through the connecting rod (211), and the limiting rod (212) is U-shaped after being connected to the connecting rod (211); The second clamping member (110) includes a mounting seat (112) fixedly connected to the driving rod (121) and a hook (111) fixed to the mounting seat (112); a second channel (113) for inserting the driving rod (121) is provided on the mounting seat (112); a pin (150) is provided on the mounting seat (112), and the pin (150) extends into the second channel (113) and is fixedly connected to the driving rod (121); when the reset spring (122) drives the driving rod (121) to reset, the hook (111) is engaged with the limiting rod (212); A plurality of positioning members (180) are provided on the base (100), and a positioning hole (220) adapted to the positioning members (180) is provided on the fixing member (200); The base (100) is provided with an elastic member (151) for detaching the fixing member (200) from the base (100).

2. The needle removal device according to claim 1, characterized in that A limiting hole (131) is provided on the base (100), and the limiting hole (131) is communicated with the groove (130), and the end of the pin (150) not inserted into the mounting seat (112) is located in the limiting hole (131).

3. The needle removal device according to claim 1, characterized in that The elastic member (151) includes a thrust spring; a through hole (160) is provided on the base (100); a limiting platform (161) is provided in the through hole (160); the limiting platform (161) separates the through hole (160) into a first accommodating cavity and a second accommodating cavity, wherein the second accommodating cavity is provided adjacent to the fixing member (200); A connecting member (190) is provided in the through hole (160), and the connecting member (190) extends from the first accommodating chamber into the second accommodating chamber, and a thrust sleeve (170) is fixedly provided at one end of the connecting member (190) extending into the second accommodating chamber, and the thrust spring is located in the second accommodating chamber, and one end of the thrust spring abuts against the limit platform (161), and the other end abuts against the thrust sleeve (170), and the thrust spring always has a tendency to cause the fixing member (200) to separate from the base (100).

4. A blood sampling robot, characterized in that: The invention comprises a needle removal device as described in any one of claims 1 to 3.

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