Heel blood collector

Abstract

According to the heel hemostix provided by the utility model, the release mechanism of the heel hemostix is designed to be integrated with the pressing release arm and the self-locking arm, when pressing release is needed, the self-locking arm is firstly pressed for unlocking, then the pressing release arm is pressed, the swing arm can be released to push the blood sampling blade to extend out of the blade hole for blood sampling, and then the blood sampling blade is withdrawn; the pressing releasing arm and the self-locking arm are integrally arranged, parts are reduced, assembling is more convenient, and the production cost is reduced; meanwhile, the guide groove is directly formed in the blood sampling blade, the corresponding integrated guide column is arranged on the upper side of the knife outlet hole in the bottom of the bottom shell, a blade sliding block does not need to be arranged, the structure can be further simplified, and assembly and production are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a heel blood collector. Background Art

[0002] As a common medical device, a blood collector is widely used in medical units for blood collection. At present, there are various commonly produced infant heel blood collectors on the market. These heel blood collectors usually consist of a front cover, a rear cover, a trigger, a sliding switch, a blade holder, a limiting connecting rod, a blade slider, and a separable limiting piece at the lower end of the trigger. The structure is complex, the production and assembly cost is high, and the limiting piece needs to be pulled out and discarded before use, which is not convenient to use. Therefore, it is necessary to further improve the structure of the heel blood collector. Summary of the Utility Model

[0003] In view of this, the utility model provides a heel blood collector, which designs an integrated pressing and releasing arm and a self-locking arm, a guiding groove and a guiding column to solve the existing technical problems.

[0004] The purpose of the utility model is realized by the following technical solutions:

[0005] A heel blood collector includes a bottom shell, an upper cover fixedly arranged on the bottom shell and forming an installation cavity between the upper cover and the bottom shell. A retractable blood collection mechanism is arranged in the middle of the installation cavity. An out-knife hole is arranged at the bottom of the installation cavity. The retractable blood collection mechanism includes a torsion spring sleeved outside the shaft column at the upper part of the bottom shell, a swing arm rotatably arranged at the center of the shaft column at the upper part of the bottom shell and elastically connected with the torsion spring, a pressing and releasing arm rotatably arranged on the rotating column in the middle of the bottom shell and abutting against the swing arm, and a blood collection blade connected with the pushing column on the upper side of the swing arm. An installation hole is arranged at the upper end of the blood collection blade and sleeved outside the pushing column on the upper side of the swing arm. A self-locking arm abutting against the edge of the bottom shell is integrally arranged at the lower part of the pressing and releasing arm.

[0006] Furthermore, a guiding groove is arranged at the lower end of the blood collection blade, and a guiding column corresponding to the guiding groove of the blood collection blade is arranged at the upper side of the out-knife hole at the bottom of the bottom shell.

[0007] Furthermore, a self-locking buckle is arranged at the bottom of the swing arm, and the swing arm is rotatably arranged at the center of the shaft column by inserting the self-locking buckle into the shaft column.

[0008] Furthermore, a positioning column is arranged at the front end of the pressing and releasing arm on the bottom shell, and the positioning column abuts against the front end of the pressing and releasing arm after the pressing and releasing arm is installed.

[0009] Furthermore, the pressing and releasing arm and the self-locking arm are made of plastic, and the pressing and releasing arm and the self-locking arm are integrally formed.

[0010] The beneficial effects of the utility model are as follows:

[0011] The release mechanism of the heel blood collector of the present utility model is designed as an integrated pressing release arm and self-locking arm. When pressing and releasing is required, only need to press the self-locking arm to unlock first, and then press the pressing release arm to release the swing arm, which can push the blood collection blade to extend out of the blade outlet hole for blood collection and then retract. The integrated setting of the pressing release arm and the self-locking arm reduces parts, is more convenient for assembly, and reduces production costs. At the same time, a guiding groove is directly set on the blood collection blade, and a corresponding integrated guiding post is set on the upper side of the blade outlet hole at the bottom of the bottom shell, so there is no need to set a blade slider, which can further simplify the structure and facilitate assembly production. Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of the heel blood collector in the present utility model;

[0013] Figure 2 It is a schematic disassembled view of the heel blood collector in the present utility model Figure 1 ;

[0014] Figure 3 It is a schematic disassembled view of the heel blood collector in the present utility model Figure 2 。

[0015] The descriptions of the reference numerals in the drawings are as follows:

[0016] 1 is the bottom shell, 2 is the upper cover, 3 is the retractable blood collection mechanism, 4 is the blade outlet hole, 101 is the shaft column, 301 is the torsion spring, 302 is the swing arm, 102 is the rotating column, 303 is the pressing release arm, 304 is the pushing column, 305 is the blood collection blade, 306 is the mounting hole, 307 is the guiding groove, 103 is the guiding post, 308 is the self-locking arm, 309 is the self-locking buckle, 104 is the positioning column. Detailed Embodiments

[0017] The following describes the embodiments of the present disclosure in detail with reference to the drawings.

[0018] The following uses specific specific examples to illustrate the embodiments of the present disclosure. Those skilled in the art can easily understand other advantages and effects of the present disclosure from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure without creative efforts belong to the scope of protection of the present disclosure.

[0019] In order to simplify the structure, facilitate assembly, and reduce production costs, the specific content of the present utility model is as follows.

[0020] Combined with Figure 1 、 Figure 2 and Figure 3 As shown, an embodiment of the present utility model is a heel blood collector, which includes a bottom shell 1, an upper cover 2 fixedly arranged on the bottom shell 1 and forming an installation cavity between the upper cover and the bottom shell 1. A retractable blood collection mechanism 3 is arranged in the middle of the installation cavity, and a blade outlet hole 4 is arranged at the bottom of the installation cavity. Importantly, the retractable blood collection mechanism 3 includes a torsion spring 301 sleeved outside the shaft column 101 on the upper part of the bottom shell 1, a swing arm 302 rotatably arranged at the center of the shaft column 101 on the upper part of the bottom shell 1 and elastically connected with the torsion spring 301, a pressing and releasing arm 303 which is press-rotatably arranged on the rotating column 102 in the middle of the bottom shell 1 and abuts against the swing arm 302, and a blood collection blade 305 connected with the pushing column 304 on the upper side of the swing arm 302; an installation hole 306 is arranged at the upper end of the blood collection blade 305 and sleeved outside the pushing column 304 on the upper side of the swing arm 302, and a self-locking arm 308 which abuts against the edge of the bottom shell 1 is integrally arranged at the lower part of the pressing and releasing arm 303;

[0021] With such a design, the release mechanism of the heel blood collector is designed as an integrated pressing and releasing arm 303 and self-locking arm 308. When pressing and releasing is required, only need to first press the self-locking arm 308 to unlock, and then press the pressing and releasing arm 303 to release the swing arm 302 to push the blood collection blade 305 to extend out of the blade outlet hole 4 for blood collection and then retract. The integrated setting of the pressing and releasing arm 303 and the self-locking arm 308 reduces parts, is more convenient for assembly, and reduces production costs;

[0022] Preferably, a guiding groove 307 is arranged at the lower end of the blood collection blade 305, and a guiding column 103 corresponding to the guiding groove 307 of the blood collection blade 305 is arranged on the bottom of the bottom shell 1 above the blade outlet hole 4; with such a design, directly arranging the guiding groove 307 on the blood collection blade 305 and arranging a corresponding integrated guiding column 103 on the bottom of the bottom shell 1 above the blade outlet hole 4, without the need to set a blade slider, can further simplify the structure and facilitate assembly and production.

[0023] Preferably, a self-locking buckle 309 is arranged at the bottom of the swing arm 302, and the swing arm 302 is rotatably arranged at the center of the shaft column 101 by inserting the self-locking buckle 309 into the shaft column 101. With such a design, the assembly of the swing arm 302 is more convenient, and the self-locking buckle 309 can limit the up and down floating of the swing arm 302, and the installation is more stable.

[0024] Preferably, a positioning column 104 is arranged at the front end of the pressing and releasing arm 303 on the bottom shell 1. After the pressing and releasing arm 303 is installed, the positioning column 104 abuts against the front end of the pressing and releasing arm 303 to facilitate the positioning of the installation of the pressing and releasing arm 303 and facilitate assembly.

[0025] Preferably, the pressing release arm 303 and the self-locking arm 308 are made of plastic, and the pressing release arm 303 and the self-locking arm 308 are integrally formed, which is convenient for manufacturing and reduces costs.

[0026] The above is only to illustrate the implementation mode of the present invention and is not used to limit the present invention. For those skilled in the art, any modifications, equivalent replacements, improvements, etc. made without creative labor within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heel blood sampling device, comprising a bottom shell, an upper cover fixedly arranged on the bottom shell and forming a mounting cavity between the upper cover and the bottom shell, a retractable blood sampling mechanism is arranged in the middle of the mounting cavity, and a knife hole is arranged at the bottom of the mounting cavity, characterized in that: The retractable blood sampling mechanism includes a torsion spring sleeved on the outside of the upper shaft column of the bottom shell, a swing arm rotatably arranged at the center of the upper shaft column of the bottom shell and elastically connected to the torsion spring, a press-release arm that is press-rotatably arranged on the middle rotating column of the bottom shell and abuts against the swing arm, and a blood sampling blade connected to the pushing column on the upper side of the swing arm; the upper end of the blood sampling blade is provided with a mounting hole sleeved on the outside of the pushing column on the upper side of the swing arm, and the lower part of the press-release arm is integrally provided with a self-locking arm that abuts against the edge of the bottom shell.

2. The heel blood sampling device according to claim 1, characterized in that: A guide groove is arranged at the lower end of the blood-collecting blade, and a guide column corresponding to the guide groove of the blood-collecting blade is arranged at the upper side of the blade outlet hole at the bottom of the bottom shell.

3. The heel blood sampling device according to claim 1, characterized in that: A self-locking buckle is arranged at the bottom of the swing arm, and the swing arm is inserted into the shaft column through the self-locking buckle and can be rotatably arranged at the center of the shaft column.

4. The heel blood sampling device according to claim 1, characterized in that: The bottom shell is provided with a positioning column at the front end of the push-release arm, and the positioning column presses against the front end of the push-release arm after the push-release arm is installed.

5. The heel blood sampling device according to claim 1, characterized in that: The push-release arm and the self-locking arm are made of plastic, and the push-release arm and the self-locking arm are integrally formed.

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