Disposable artery sensor blood sample collector

Abstract

The utility model relates to a disposable artery sensor blood sample collector which comprises an outer sleeve, a core rod and a sealing cap, the core rod is sleeved with the outer sleeve, the outer sleeve is connected with the sealing cap, a vent plug installation cylinder is arranged on the upper portion of the core rod, a liquid-blocking vent plug is arranged in the vent plug installation cylinder, and a liquid-blocking vent plug is arranged in the liquid-blocking vent plug. A vent plug mounting cylinder is arranged in the outer sleeve, a rubber piston is arranged outside the vent plug mounting cylinder in a sleeving manner, at least three air inlet holes are formed in the top of the rubber piston, the rubber piston is in limited sliding connection with the outer sleeve, an exhaust hole is formed in the bottom of the vent plug mounting cylinder, and the exhaust hole is communicated with the outside. According to the blood sample collecting device, the exhaust performance is better in the blood sample collecting process, after blood sample collecting is completed, it is further guaranteed that the blood sample is not polluted by the outside world through sealing of the sealing cap, blood waste is avoided, and the accuracy of the blood sample analysis result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a disposable artery sensor blood sample collector. Background Art

[0002] Too much air mixed in the collected blood will affect the effect of the subsequent blood sample analysis. If the effect of the blood sample analysis is affected and accurate analysis results cannot be obtained, blood will be drawn and analyzed multiple times, which will cause pain to the patient and waste blood.

[0003] In the prior art, the patent (application number: 201620041252.3) discloses a human arterial blood sample collector, which includes a syringe, a pull rod and a piston, wherein the piston is fixed at one end of the pull rod, the pull rod and the piston are sleeved in the syringe and slide in the syringe, and the inner wall of the syringe is coated with an anticoagulant coating; one end of the piston is conical, and at least three air inlet holes are provided on the conical end surface, and the bottom of the air inlet hole is provided with an inwardly inclined slope; the interior of the piston is provided with an air inlet channel, and the air inlet hole is connected to the air inlet channel; an air-permeable and water-impermeable air plug is installed in the air inlet channel, the central axis of the pull rod is hollow, and the air inlet channel is connected to the hollow through the air plug. Among them, the air permeability efficiency and the processing after the collection are not perfect enough, which may cause the blood sample to be contaminated, thereby causing inaccurate analysis results. Utility Model Content

[0004] In view of the above deficiencies in the prior art, the utility model provides a disposable arterial sensor blood sample collector, which not only has better exhaust performance during the blood sample collection process, but also, after the blood sample is collected, further ensures that the blood sample is not contaminated by the outside world through sealing with a sealing cap, thereby avoiding blood waste and improving the accuracy of blood sample analysis results.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is as follows:

[0006] A disposable arterial sensor blood sample collector comprises an outer sleeve, a core rod and a sealing cap, wherein the outer sleeve is sleeved on the outer part of the core rod, and the outer sleeve is connected to the sealing cap, a vent plug mounting cylinder is provided on the upper part of the core rod, a liquid-blocking vent plug is provided inside the vent plug mounting cylinder, a rubber piston is sleeved on the outer part of the vent plug mounting cylinder, at least three air inlet holes are provided on the top of the rubber piston, the rubber piston is limitedly slidably connected to the outer sleeve, and an exhaust hole is provided at the bottom of the vent plug mounting cylinder, and the exhaust hole is communicated with the outside.

[0007] Preferably, a threaded collar is provided on the inner wall of the upper portion of the outer sleeve, a cone head cavity is provided at the center of the upper portion of the outer sleeve, a sealing column is provided inside the sealing cap, and a lug is provided on the outer edge of the sealing cap.

[0008] Preferably, the threaded collar is matched with the lug, and the cone head cavity is nested and adapted with the sealing column.

[0009] Preferably, the inner wall of the outer shell is coated with a blood anticoagulant layer.

[0010] Preferably, the core rod is integrally injection molded.

[0011] Preferably, an annular groove is provided on the circumference of the inner wall of the outer sleeve.

[0012] Preferably, the handle of the core rod is provided with a protruding rib, and the curling edge of the outer sleeve is provided with a protruding rib.

[0013] Preferably, the outer sleeve is integrally injection molded.

[0014] Preferably, the sealing cap is cylindrical in shape.

[0015] The utility model has the following positive effects:

[0016] 1. The utility model has at least three air inlet holes on the top of the rubber piston and an exhaust hole on the bottom of the air plug mounting tube, and the exhaust hole is connected to the outside, so that during the blood sample collection process, the air can be quickly discharged, thereby reducing the air content in the collected blood sample and further improving the accuracy of blood sample detection.

[0017] 2. The utility model is connected to the outer jacket through a sealing cap, thereby further ensuring that the blood sample is not contaminated by the outside world, avoiding blood waste, and improving the accuracy of blood sample analysis results.

[0018] 3. The utility model provides an annular groove on the inner wall of the outer jacket to remind medical workers that the blood sample collection has reached the maximum scale line (the maximum amount of blood that can be collected), and also to prevent the core rod from being pulled out of the outer jacket to avoid blood waste. At the same time, ribs are provided on the curled edge of the outer jacket and the core rod of the collector. With these ribs, medical workers can prevent slipping during use (compared with a smooth design), and the collector is not likely to slip and fall off during use, causing waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the disassembled state of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the core rod of the utility model;

[0022] Figure 4A top view of the core rod of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the rubber piston of the utility model.

[0024] Explanation of the numbers in the figure: 1-sealing cap, 11-sealing column, 12-lug, 2-jacket, 21-conical head cavity, 22-threaded clamping ring, 23-annular groove, 24-jacket curling, 3-rubber piston, 31-air inlet, 4-liquid-blocking vent plug, 5-core rod, 51-vent plug mounting cylinder, 52-exhaust hole, 6-rib. DETAILED DESCRIPTION

[0025] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0026] Example: Figure 1 or Figure 2 or Figure 3 or Figure 4 or Figure 5 As shown, a disposable arterial sensor blood sample collector comprises an outer sleeve 2, a core rod 5 and a sealing cap 1, wherein the outer sleeve 2 is sleeved on the core rod 5, and the outer sleeve 2 is connected to the sealing cap 1, and a vent plug mounting tube 51 is provided on the upper part of the core rod 5, and a liquid-blocking vent plug 4 is provided inside the vent plug mounting tube 51, and a rubber piston 3 is sleeved on the outer part of the vent plug mounting tube 51, and at least three air inlet holes 31 are provided on the top of the rubber piston 3, and the rubber piston 3 is limitedly slidably connected to the outer sleeve 2, and an exhaust hole 52 is provided on the bottom of the vent plug mounting tube 51, and the exhaust hole 52 is communicated with the outside.

[0027] In this embodiment, a threaded collar 22 is provided on the upper inner wall of the outer sleeve 2, a cone head cavity 21 is provided at the center of the upper part of the outer sleeve 2, a sealing column 11 is provided inside the sealing cap 1, and a lug 12 is provided on the outer edge of the sealing cap 1.

[0028] In this embodiment, the threaded collar 22 is matched with the lug 12 , and the cone head cavity 21 is nested and matched with the sealing column 11 .

[0029] In this embodiment, the inner wall of the outer shell 2 is coated with a blood anticoagulant layer.

[0030] In this embodiment, the core rod 5 is integrally injection molded.

[0031] In this embodiment, an annular groove 23 is provided on the circumference of the inner wall of the outer sleeve 2 .

[0032] In this embodiment, the handle of the core rod 5 is provided with a protruding rib 6 , and the curling edge 24 of the outer sleeve 2 is provided with a protruding rib 6 .

[0033] In this embodiment, the outer sleeve 2 is integrally injection molded.

[0034] In this embodiment, the sealing cap 1 is cylindrical in shape.

[0035] In this embodiment, the top of the core rod 5 is designed with an inclined chamfer, which makes it more convenient and saves time and effort when installing into the rubber piston.

[0036] The working principle of the utility model is as follows: take out the disposable arterial sensor blood sample collector, connect the arterial sensor interface, pull the core rod to draw blood, during the blood drawing process, the air passes through the three air inlet holes of the rubber piston, then passes through the liquid-blocking vent plug, and then passes through the vent hole to be discharged to the outside. At the same time, the liquid-blocking vent plug can only pass air but not blood, thereby ensuring that blood will not be discharged. When the rubber piston reaches the annular groove of the outer jacket, the blood sample collection is completed, and the sealing cap is sealed and connected to the outer jacket at the same time to prevent blood leakage and air pollution.

[0037] In summary, the utility model can not only improve the exhaust performance during the blood sample collection process, but also further ensure that the blood sample is not contaminated by the outside world through the sealing cap after the blood sample is collected, thereby improving the accuracy of the blood sample analysis results.

[0038] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A disposable arterial sensor blood sample collector, comprising an outer sleeve (2), a core rod (5) and a sealing cap (1), wherein the outer sleeve (2) is sleeved on the outer surface of the core rod (5), and the outer sleeve (2) is connected to the sealing cap (1), characterized in that: A vent plug mounting cylinder (51) is provided on the upper part of the core rod (5), a liquid-blocking vent plug (4) is provided inside the vent plug mounting cylinder (51), a rubber piston (3) is provided on the outer sleeve of the vent plug mounting cylinder (51), at least three air inlet holes (31) are provided on the top of the rubber piston (3), the rubber piston (3) is connected to the outer sleeve (2) in a limited sliding manner, and an exhaust hole (52) is provided on the bottom of the vent plug mounting cylinder (51), and the exhaust hole (52) is communicated with the outside.

2. The disposable arterial sensor blood sample collector according to claim 1, characterized in that: A threaded collar (22) is provided on the inner wall of the upper portion of the outer sleeve (2), a cone head cavity (21) is provided at the center of the upper portion of the outer sleeve (2), a sealing column (11) is provided inside the sealing cap (1), and a lug (12) is provided on the outer edge of the sealing cap (1).

3. The disposable arterial sensor blood sample collector according to claim 2, characterized in that: The threaded collar (22) is matched with the lug (12), and the cone head cavity (21) is nested and matched with the sealing column (11).

4. The disposable arterial sensor blood sample collector according to claim 2, characterized in that: The inner wall of the outer shell (2) is coated with a blood anticoagulation layer.

5. The disposable arterial sensor blood sample collector according to claim 1, characterized in that: The core rod is integrally injection-molded.

6. The disposable arterial sensor blood sample collector according to claim 1, characterized in that: An annular groove is arranged on the circumference of the inner wall of the outer sleeve.

7. The disposable arterial sensor blood sample collector according to claim 1, characterized in that: The handle of the core rod (5) is provided with a protruding rib, and the curling edge of the outer sleeve (2) is provided with a protruding rib.

8. The disposable arterial sensor blood sample collector according to claim 1, characterized in that: The outer sleeve (2) is integrally injection-molded.

9. The disposable arterial sensor blood sample collector according to claim 1, characterized in that: The sealing cap (1) is cylindrical in shape.

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