Peripheral blood taking needle with puncture depth convenient to adjust

Abstract

A tip blood taking needle facilitating puncture depth adjustment comprises a barrel arranged outside, an adjusting assembly, a through hole and a pushing handle, the adjusting assembly is arranged at one end of the barrel, a finger sleeve is arranged in the middle of one end of the adjusting assembly, a guide sleeve is arranged in the barrel, a puncture needle is arranged in the guide sleeve, and the through hole is communicated with the guide sleeve. The top of the puncture needle is connected with a fixing ring fixed to the guide sleeve, a connecting rod is arranged at the top end of the puncture needle, the portion, above the puncture needle, of the connecting rod is sleeved with an ejection spring, and a pushing handle is arranged at the top end of the connecting rod. The adjusting assembly comprises an adjusting sleeve, an external thread, an internal thread, a needle hole and a limiting block, the internal thread is formed in the adjusting sleeve, the external thread is formed in the position, corresponding to the internal thread, of the bottom of the barrel body, and the limiting block is arranged on the inner side of the guiding sleeve. The puncture depth can be adjusted, and the applicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a blood taking needle, in particular to a distal blood taking needle convenient to adjust puncture depth. BACKGROUND

[0002] The distal blood is the blood detection sample for clinical, with the continuous development and increasing perfection of the modernization, traceability, portability of the inspection medical technology, the application of the distal blood is more and more extensive, and the distal blood is usually punctured in the specific part such as finger, heel etc., and the capillary blood is collected to carry out the inspection, when the distal blood is collected, the blood taking instrument is used, and it has important significance to study the blood taking instrument to realize accurate, fast, puncture depth stability, reduce the pain feeling etc.

[0003] The existing distal blood taking needle has certain deficiency when using, cannot adjust the puncture depth according to the need, and the applicability is insufficient, which is not conducive to use. UTILITY MODEL CONTENT

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a distal blood taking needle convenient to adjust puncture depth, which effectively solves the problems that the existing distal blood taking needle has certain deficiency when using, cannot adjust the puncture depth according to the need, the applicability is insufficient, and is not conducive to use.

[0005] To achieve the above object, the utility model provides the following technical scheme: the utility model discloses the cylinder that is externally arranged, still includes adjusting assembly, finger sheath, guide sleeve, puncture needle, fixed ring, connecting rod, elastic spring, through -hole and push handle, the one end of cylinder is provided with adjusting assembly, and the middle part of adjusting assembly one end is provided with finger sheath, and the inside of cylinder is provided with guide sleeve, and the inside of guide sleeve is provided with puncture needle, and the top of puncture needle is connected with the fixed ring that is fixed on guide sleeve, and the top of puncture needle is provided with connecting rod, and the connecting rod on the top is provided with elastic spring, and the top of connecting rod is provided with push handle;

[0006] Adjusting assembly includes adjusting sleeve, external thread, internal thread, needle hole and limit block, the inside of adjusting sleeve is provided with internal thread, and the bottom of cylinder is provided with external thread corresponding to internal thread position, and the inside of guide sleeve is provided with limit block.

[0007] Preferably, a vertical scale line for displaying puncture depth is arranged on the external thread of the cylinder.

[0008] Preferably, the fixed ring and the edge of the puncture needle are connected by a point.

[0009] Preferably, a through hole is arranged on the cylinder corresponding to the position of the connecting rod.

[0010] Preferably, a needle hole is arranged in the middle of the adjusting sleeve.

[0011] Preferably, the ejection spring is in a compressed state initially.

[0012] Beneficial effects: when the utility model is used, the user places fingers inside the finger sleeve, the operator presses the push handle, the push handle pushes the connecting rod, the connecting rod pushes the puncture needle, the pushing force is greater than the point connection force between the fixing ring and the puncture needle, so that the fixing ring and the puncture needle are separated, so that the puncture needle is pushed under the action of the ejection spring force, the puncture needle extends out of the pinhole to puncture the fingertips in the finger sleeve to take blood, when the puncture depth needs to be adjusted, the adjusting sleeve is rotated, the outer thread and the inner thread are matched, so that the adjusting sleeve moves on the cylinder, so that the purpose of adjusting the puncture depth of the puncture needle can be achieved, the puncture needs to be adjusted, and the applicability is strong. The utility model has novel structure, clever design, is convenient for peripheral puncture blood sampling, simple and convenient operation, can adjust the puncture depth, and has high applicability. BRIEF DESCRIPTION OF DRAWINGS

[0013] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0014] Fig. 1 It is the whole structure schematic view of the utility model;

[0015] Fig. 2 It is the internal structure schematic view of the utility model;

[0016] Fig. 3 It is the fixing ring and puncture needle connection structure schematic view of the utility model;

[0017] Marked number in the drawing: 1, cylinder;2, adjusting assembly;3, finger sleeve;4, guide sleeve;5, puncture needle;6, fixing ring;7, connecting rod;8, ejection spring;9, through hole;10, push handle;11, adjusting sleeve;12, outer thread;13, inner thread;14, pinhole;15, limit block. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings Figs. 1-3 The specific implementation mode of the utility model is further explained in detail.

[0019] Embodiment one, by Figs. 1-3The utility model provides a kind of distal end blood lancet convenient to adjust puncture depth, including the cylinder 1 of external setting, further include adjusting assembly 2, finger cot 3, guide sleeve 4, puncture needle 5, fixed ring 6, connecting rod 7, eject spring 8, through-hole 9 and push handle 10, one end of cylinder 1 is provided with adjusting assembly 2, the middle part of adjusting assembly 2 one end is provided with finger cot 3, the inside of cylinder 1 is provided with guide sleeve 4, puncture needle 5 is provided in guide sleeve 4, the top of puncture needle 5 is connected with the fixed ring 6 fixed on guide sleeve 4, the top end of puncture needle 5 is provided with connecting rod 7, eject spring 8 is set on the connecting rod 7 above puncture needle 5, and the top end of connecting rod 7 is provided with push handle 10;

[0020] Adjusting assembly 2 includes adjusting sleeve 11, outer thread 12, inner thread 13, needle hole 14 and limit block 15, the inside of adjusting sleeve 11 is provided with inner thread 13, the bottom of cylinder 1 is provided with outer thread 12 at the position corresponding to inner thread 13, and the inner side of guide sleeve 4 is provided with limit block 15.

[0021] The outer thread 12 of cylinder 1 is provided with a vertical scale line for displaying puncture depth, which facilitates the display of puncture depth during the adjustment of adjusting sleeve 11.

[0022] The edge of fixed ring 6 is connected to puncture needle 5 by point, which facilitates the fixation of puncture needle 5 by fixed ring 6 and avoids the ejection of puncture needle 5 by eject spring 8.

[0023] The through-hole 9 is provided at the position corresponding to connecting rod 7 of cylinder 1, which facilitates the installation and use of connecting rod 7.

[0024] The middle part of adjusting sleeve 11 is provided with needle hole 14, which facilitates the cooperation with puncture needle 5.

[0025] The initial state of eject spring 8 is compression state, which ensures the ejection performance of puncture needle 5 by eject spring 8.

[0026] Working principle: when the utility model is used, the user places fingers inside finger cot 3, the operator presses push handle 10, push handle 10 pushes connecting rod 7, connecting rod 7 pushes puncture needle 5, the pushing force is greater than the point connection force of fixed ring 6 and puncture needle 5, so that fixed ring 6 and puncture needle 5 are separated, which pushes puncture needle 5 under the action of the elasticity of eject spring 8, puncture needle 5 extends out of needle hole 14 to puncture the fingertips in finger cot 3 and take blood, when the puncture depth needs to be adjusted, adjusting sleeve 11 is rotated, adjusting sleeve 11 moves on cylinder 1 under the cooperation of outer thread 12 and inner thread 13, so that the purpose of adjusting the puncture depth of puncture needle 5 is achieved, which is convenient for adjustment according to the puncture needs and has strong applicability.

[0027] Beneficial effects: The utility model has a novel structure and an ingenious design, is convenient for peripheral puncture and blood collection, is easy to operate, and can adjust the puncture depth, with strong applicability.

[0028] Through the use of wires by those skilled in the art, all electrical components in this case are connected to their corresponding power supplies, and appropriate controllers and encoders should be selected according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the following working principle, in which the electrical components are electrically connected in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A lancet for easy adjustment of the depth of penetration, comprising an externally provided barrel (1), characterized in that: The adjusting assembly (2), the finger sleeve (3), the guide sleeve (4), the puncture needle (5), the fixing ring (6), the connecting rod (7), the ejection spring (8), the through hole (9) and the push handle (10) are further included, one end of the barrel (1) is provided with the adjusting assembly (2), the middle part of one end of the adjusting assembly (2) is provided with the finger sleeve (3), the inside of the barrel (1) is provided with the guide sleeve (4), the guide sleeve (4) is provided with the puncture needle (5) inside, the top of the puncture needle (5) is connected with the fixing ring (6) fixed on the guide sleeve (4), the top end of the puncture needle (5) is provided with the connecting rod (7), the connecting rod (7) above the puncture needle (5) is provided with the ejection spring (8) sleeved, and the top end of the connecting rod (7) is provided with the push handle (10). The adjusting assembly (2) includes the adjusting sleeve (11), the external thread (12), the internal thread (13), the needle hole (14) and the limiting block (15), the inside of the adjusting sleeve (11) is provided with the internal thread (13), the bottom of the barrel (1) is provided with the external thread (12) at the position corresponding to the internal thread (13), and the inner side of the guide sleeve (4) is provided with the limiting block (15).

2. The lancet of claim 1 wherein: The external thread (12) of the barrel (1) is provided with a vertical scale line for displaying the puncture depth.

3. The lancet of claim 1 wherein: The fixing ring (6) is connected with the edge of the puncture needle (5) through a point.

4. The lancet of claim 1 wherein: The barrel (1) is provided with the through hole (9) at the position corresponding to the connecting rod (7).

5. The lancet of claim 1 wherein: The middle part of the adjusting sleeve (11) is provided with the needle hole (14).

6. The lancet of claim 1 wherein: The initial state of the ejection spring (8) is a compressed state.

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