Negative pressure skin adsorption type painless blood sampling instrument

Abstract

The invention relates to the field of blood sampling instruments, and discloses a negative-pressure skin adsorption type painless blood sampling instrument, which comprises a shell assembly, a negative-pressure skin adsorption type painless blood sampling instrument, a negative-pressure skin adsorption type painless blood sampling instrument and a negative-pressure skin adsorption type painless blood sampling instrument, the reversing assembly comprises a rotating motor, a needle inserting disc movably connected with the rotating motor and a needle inserting elastic sheet arranged in the needle inserting disc; the negative pressure assembly comprises a negative pressure cavity, a blood sampling opening formed in the upper end of the negative pressure cavity and a negative pressure generator arranged on one side of the negative pressure cavity; an external blood taking needle can be moved into the shell through the reversing assembly, the needle inserting elastic piece can push the blood taking needle to complete installation, the negative pressure generator can adsorb the skin of a user, so that the skin of the user protrudes downwards, the puncture depth of the blood taking needle is reduced, pain of a patient is relieved, meanwhile, the pushing assembly can push the blood taking needle to complete disassembly of the blood taking needle, and the safety of the patient is improved. The blood sampling speed is accelerated.

Description

Technical Field

[0001] The invention relates to the technical field of blood sampling instruments, in particular to a negative pressure skin adsorption type painless blood sampling instrument. Background Art

[0002] Traditional blood collection methods often rely on manual or semi-automatic equipment. These devices make it difficult to accurately control the depth and strength of the blood collection needle during the blood collection process, causing patients to often feel pain and discomfort. In addition, the manual blood collection process is complicated, which increases the risk of cross-infection and also places high demands on the operator's operating skills. With the advancement of medical technology, painless blood collection devices have appeared on the market, such as painless blood collection pens.

[0003] Although the painless blood collection pens currently on the market have achieved the function of painless blood collection to a certain extent, their operation process is relatively cumbersome. The operator needs to manually disassemble the negative pressure cover at the front end to place the blood collection needle, and disassemble it again to remove the blood collection needle after the blood collection is completed. This process not only has many operating steps, which increases the difficulty of use, but may also affect the sealing performance of the equipment and reduce the blood collection effect. In addition, the design of existing negative pressure blood collection pens often requires patients to operate with their palms facing up, which is inconsistent with the natural hand posture of the human body, making it difficult to accurately insert the hand and causing accidental injuries. Therefore, a negative pressure skin adsorption type painless blood collection instrument is proposed to solve the above problems. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a negative pressure skin adsorption type painless blood collection instrument, comprising:

[0006] A housing assembly, comprising a housing and an operation button disposed above the housing; and

[0007] The reversing assembly includes a rotating motor, a needle insertion disk movably connected to the rotating motor, and a needle insertion spring arranged inside the needle insertion disk; and,

[0008] A negative pressure assembly, comprising a negative pressure chamber, a blood sampling port disposed at the upper end of the negative pressure chamber, and a negative pressure generator disposed at one side of the negative pressure chamber; and,

[0009] The needle moving assembly comprises a telescopic cylinder, a moving seat arranged at the upper end of the telescopic cylinder, a fixed spring sheet arranged at the upper end of the moving seat, and a guide hole arranged on the surface of the fixed spring sheet; wherein,

[0010] When the rotating motor rotates, the needle insertion spring on the surface of the needle insertion disk moves the blood collection needle into the shell, and the needle insertion spring moves the blood collection needle into the fixed spring. The negative pressure generator sucks the patient's hand, and the telescopic cylinder drives the fixed spring into the negative pressure chamber to pierce the patient's hand.

[0011] As a preferred solution of the negative pressure skin adsorption painless blood collection instrument of the present invention, wherein: the surface of the shell is provided with a groove, and the needle insertion disk is rotatably connected to the groove.

[0012] As a preferred solution of the negative pressure skin adsorption painless blood collection instrument of the present invention, a blood collection port is fixed at the upper end of the negative pressure chamber, and a blood collection groove is arranged at the upper end of the shell.

[0013] As a preferred solution of the negative pressure skin adsorption painless blood collection instrument of the present invention, the blood collection port is arranged inside the blood collection groove, and the other end of the negative pressure generator is connected to the trachea.

[0014] As a preferred solution of the negative pressure skin adsorption painless blood collection instrument of the present invention, the other end of the trachea is connected to the telescopic cylinder.

[0015] As a preferred solution of the negative pressure skin adsorption painless blood collection instrument of the present invention, wherein: a guide hole is provided on the surface of the fixed spring sheet, and a pushing component is provided inside the shell.

[0016] As a preferred solution of the negative pressure skin adsorption painless blood collection instrument of the present invention, the pushing component includes a needle withdrawer, and a needle withdrawer shrapnel is connected to the surface of the needle withdrawer.

[0017] As a preferred solution of the negative pressure skin adsorption painless blood collection instrument described in the present invention, the needle withdrawal spring, the guide hole and the needle insertion spring are arranged on the same horizontal line.

[0018] As a preferred solution of the negative pressure skin adsorption painless blood collection instrument of the present invention, wherein: the surface of the needle insertion disk is provided with a mounting groove, and the needle insertion spring is arranged inside the mounting groove.

[0019] As a preferred solution of the negative pressure skin adsorption painless blood collection instrument of the present invention, the bottom of the negative pressure chamber is provided with a through hole, and the through hole and the blood collection port are arranged correspondingly.

[0020] The beneficial effects of the present invention are as follows: the external blood collection needle can be moved to the inside of the shell through the reversing component, the needle insertion spring can push the blood collection needle to complete the installation, the negative pressure generator can absorb the user's skin, so that the user's skin bulges downward, reducing the puncture depth of the blood collection needle and reducing the patient's pain. At the same time, the pushing component can push the blood collection needle to complete the disassembly of the blood collection needle, thereby speeding up the blood collection speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the cutaway structure of the present invention.

[0024] Figure 3 It is a schematic diagram of the bottom structure of the needle moving assembly in the present invention.

[0025] Figure 4 It is a schematic structural diagram of the needle withdrawer, the spring sheet and the needle feeder disc in the present invention.

[0026] Figure 5 It is a structural schematic diagram of the needle feeding disk in the present invention.

[0027] Figure 6 It is a structural schematic diagram of the needle moving assembly in the present invention. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1, reference Figures 1 to 5 , which is the first embodiment of the present invention, provides a negative pressure skin adsorption painless blood collection instrument that can achieve the effect of automatic installation of the blood collection needle.

[0032] A negative pressure skin adsorption type painless blood collection instrument, comprising:

[0033] The housing assembly 1 includes a housing 11 and an operation button 12 disposed above the housing 11; and

[0034] The reversing assembly 2 includes a rotating motor 22, a needle insertion disk 21 movably connected to the rotating motor 22, and a needle insertion spring 24 disposed inside the needle insertion disk 21; and,

[0035] The negative pressure assembly 3 includes a negative pressure chamber 32, a blood sampling port 31 disposed at the upper end of the negative pressure chamber 32, and a negative pressure generator 33 disposed at one side of the negative pressure chamber 32; and,

[0036] The needle moving assembly 4 comprises a telescopic cylinder 41, a moving seat 42 arranged at the upper end of the telescopic cylinder 41, a fixed spring piece 44 arranged at the upper end of the moving seat 42, and a guide hole 43 arranged on the surface of the fixed spring piece 44; wherein,

[0037] When the rotating motor 22 rotates, the needle insertion spring 24 on the surface of the needle insertion disk 21 moves the blood collection needle into the shell 11, and the needle insertion spring 24 moves the blood collection needle into the fixed spring 44. The negative pressure generator 33 sucks the patient's hand, and the telescopic cylinder 41 drives the fixed spring 44 to enter the negative pressure chamber 32 to pierce the patient's hand.

[0038] Specifically, a groove is provided on the surface of the housing 11, and the needle-entering disk 21 is rotatably connected to the groove.

[0039] The slot can facilitate the needle insertion tray 21 to be separated from the housing 11, thereby facilitating the installation of the blood collection needle.

[0040] A blood sampling port 31 is fixed at the upper end of the negative pressure chamber 32 , and a blood sampling groove is provided at the upper end of the housing 11 .

[0041] The blood collection port 31 can be conveniently placed on the hand, making it convenient for the user to operate.

[0042] A mounting groove 23 is provided on the surface of the needle insertion disk 21 , and a needle insertion spring piece 24 is disposed inside the mounting groove 23 .

[0043] The needle insertion spring 24 can push the blood collection needle to move, thereby achieving the installation of the blood collection needle.

[0044] A through hole 35 is provided at the bottom of the negative pressure chamber 32 , and the through hole 35 and the blood sampling port 31 are provided correspondingly.

[0045] The through hole 35 can facilitate the insertion of the fixing spring sheet 44 .

[0046] The blood collection port 31 is disposed inside the blood collection tank.

[0047] The convenient blood collection port 31 extends outside to facilitate operation by the user.

[0048] Working process: the rotating motor 22 drives the needle insertion disk 21 to rotate, so that the mounting groove 23 on the surface of the needle insertion disk 21 moves to the outside of the shell 11, and the blood collection needle is placed inside the needle insertion spring piece 24. The rotating motor 22 drives the needle insertion disk 21 to rotate, so that the needle insertion spring piece 24 is aligned with the fixed spring piece 44. The needle insertion spring piece 24 drives the blood collection needle to enter the fixed spring piece 44 through the cylinder inside the needle insertion disk 21. At this time, the user places his finger on the surface of the blood collection port 31, and the negative pressure generator 33 can be an air pump. The negative pressure generator 33 is started to extract the air inside the negative pressure chamber 32, and the user's skin is sucked into the blood collection port 31. The telescopic cylinder 41 drives the movable seat 42 to move upward, and drives the fixed spring piece 44 to move upward, then the blood collection needle inside the fixed spring piece 44 moves upward to pierce the user's skin, thereby completing blood collection.

[0049] Example 2, reference Figures 1 to 6 , which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a negative pressure generator 33 of a negative pressure skin adsorption type painless blood collection instrument, which solves the problem of the linkage operation of the negative pressure chamber 32 and the telescopic cylinder 41.

[0050] Specifically, the other end of the negative pressure generator 33 is connected to the air pipe 34 .

[0051] The air pipe 34 can connect the negative pressure generator 33 and the telescopic cylinder 41 , so that the negative pressure chamber 32 and the telescopic cylinder 41 are synchronized.

[0052] The other end of the air pipe 34 is connected to the telescopic cylinder 41 .

[0053] The gas extracted from the negative pressure chamber 32 can be introduced into the telescopic cylinder 41 .

[0054] Working process: When the negative pressure generator 33 extracts the gas inside the negative pressure chamber 32, the negative pressure generator 33 introduces the extracted gas into the telescopic cylinder 41, thereby realizing linkage. The rising moving seat 42 can block the through hole 35, thereby sucking the user's skin into the blood collection port 31.

[0055] Example 3, reference Figures 1 to 6 , which is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides a pushing component 5 of a negative pressure skin adsorption type painless blood collection instrument, which solves the problem of disassembly of the blood collection needle.

[0056] Specifically, a guide hole 43 is provided on the surface of the fixing spring sheet 44 , and a pushing assembly 5 is provided inside the housing 11 .

[0057] The pushing component 5 can push the blood collection needle, thereby removing the blood collection needle.

[0058] The pushing assembly 5 comprises a needle withdrawing device 51 , and a needle withdrawing spring 52 is connected to the surface of the needle withdrawing device 51 .

[0059] The needle remover 51 can push the blood collection needle, thereby ensuring stable removal of the blood collection needle.

[0060] The needle withdrawal spring piece 52, the guide hole 43 and the needle insertion spring piece 24 are arranged on the same horizontal line.

[0061] It is convenient to operate the blood collection needle and reduces the trouble caused by manual operation.

[0062] Working process: After the blood collection is completed, the fixed spring piece 44 returns to the normal height, and the needle withdrawing device 51 pushes out the needle withdrawing spring piece 52, and the needle withdrawing spring piece 52 moves into the guide hole 43, pushing the blood collection needle inside the fixed spring piece 44, so that the blood collection needle is re-stuck on the surface of the needle insertion spring piece 24, and the rotating motor 22 drives the needle insertion disk 21 to rotate, thereby taking out the blood collection needle.

[0063] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0064] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0065] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0066] 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 preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A negative pressure skin adsorption type painless blood collection instrument, characterized in that: include, A housing assembly (1) comprising a housing (11) and an operating button (12) arranged above the housing (11); as well as, A reversing assembly (2) comprises a rotating motor (22), a needle insertion disk (21) movably connected to the rotating motor (22), and a needle insertion spring (24) arranged inside the needle insertion disk (21); and, A negative pressure assembly (3), comprising a negative pressure chamber (32), a blood sampling port (31) arranged at the upper end of the negative pressure chamber (32), and a negative pressure generator (33) arranged at one side of the negative pressure chamber (32); and, The needle moving assembly (4) comprises a telescopic cylinder (41), a moving seat (42) arranged at the upper end of the telescopic cylinder (41), a fixed spring sheet (44) arranged at the upper end of the moving seat (42), and a guide hole (43) arranged on the surface of the fixed spring sheet (44); wherein: When the rotating motor (22) rotates, the needle insertion spring (24) on the surface of the needle insertion disk (21) moves the blood collection needle into the interior of the housing (11), and the needle insertion spring (24) moves the blood collection needle into the interior of the fixed spring (44). The negative pressure generator (33) sucks the patient's hand, and the telescopic cylinder (41) drives the fixed spring (44) to enter the negative pressure chamber (32) to puncture the patient's hand.

2. The negative pressure skin adsorption painless blood collection instrument according to claim 1, characterized in that: The surface of the housing (11) is provided with a slot, and the needle-entry disk (21) is rotatably connected to the slot.

3. The negative pressure skin adsorption painless blood collection instrument as claimed in claim 2, characterized in that: A blood sampling port (31) is fixed at the upper end of the negative pressure chamber (32), and a blood sampling groove is provided at the upper end of the shell (11).

4. The negative pressure skin adsorption painless blood collection instrument as claimed in claim 3, characterized in that: The blood sampling port (31) is arranged inside the blood sampling groove, and the other end of the negative pressure generator (33) is connected to a trachea (34).

5. The negative pressure skin adsorption painless blood collection instrument as claimed in claim 4, characterized in that: The other end of the air pipe (34) is connected to the telescopic cylinder (41).

6. The negative pressure skin adsorption painless blood collection instrument as claimed in claim 5, characterized in that: A guide hole (43) is provided on the surface of the fixing spring sheet (44), and a pushing assembly (5) is provided inside the housing (11).

7. The negative pressure skin adsorption painless blood collection instrument according to claim 6, characterized in that: The pushing assembly (5) comprises a needle withdrawing device (51), and a needle withdrawing spring (52) is connected to the surface of the needle withdrawing device (51).

8. The negative pressure skin adsorption painless blood collection instrument according to claim 7, characterized in that: The needle withdrawal spring piece (52), the guide hole (43) and the needle entry spring piece (24) are arranged on the same horizontal line.

9. The negative pressure skin adsorption painless blood collection instrument according to claim 8, characterized in that: The surface of the needle insertion disk (21) is provided with a mounting groove (23), and the needle insertion spring piece (24) is arranged inside the mounting groove (23).

10. The negative pressure skin adsorption painless blood collection instrument according to claim 9, characterized in that: A through hole (35) is provided at the bottom of the negative pressure chamber (32), and the through hole (35) and the blood sampling port (31) are arranged correspondingly.

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