Sampling gun head of blood gas analyzer

Abstract

The utility model discloses a blood gas analyzer sampling gun head which comprises a shell and a sampling head, the sampling head is connected to the inner side of the shell, the inner side of the shell is connected with a supporting ring block, the outer side of the sampling head is connected with a fixing ring block, the fixing ring block is arranged on the upper side of the supporting ring block, and an oscillation mechanism and a limiting mechanism are arranged on the outer side of the sampling head. The sampling device has the advantages that the sampling head can be conveniently mounted and dismounted, meanwhile, the sampling head can be easily vibrated, and in the actual use process, the connecting block can be conveniently dismounted through connection of the clamping block and the clamping groove, so that replacement of the reset spring is realized, and the sampling device is convenient to use. Meanwhile, the supporting ring block can support and place the sampling head through the connection relation between the supporting ring block and the fixed ring block, and the reset spring can further play a role in limiting the fixed ring block after being connected to the inner side of the fixed ring block, so that both the impact block and the sampling head have a detachable effect.

Description

Technical Field

[0001] The utility model relates to the technical field of blood gas analyzers, in particular to a sampling gun head for a blood gas analyzer. Background Art

[0002] A blood gas analyzer is a device used to test gases (such as oxygen, carbon dioxide, etc.) and acid-base balance in human arterial blood. By analyzing these indicators, doctors can evaluate the patient's respiratory function, lung function, and body metabolism. The sampling gun head of the blood gas analyzer is a tool used to collect blood samples. When performing a blood gas analysis, medical staff will use the sampling gun head to extract a small blood sample from the patient's arterial blood vessel, and then put the sample into the blood gas analyzer for testing.

[0003] The utility model patent with the authorization announcement number CN214894285U discloses a blood gas analyzer sampling gun head, including a gun head body, a casing is arranged outside the gun head body, and an oscillation structure is arranged on the inner wall of the gun head body. The sampling gun head of the blood gas analyzer rotates the swivel in any direction. Since the outer wall of the sampling tube is connected to the swivel, the sampling tube is synchronously driven by the swivel to rotate inside the gun head body. When the sampling tube rotates, the block rubs against the oscillation plate, so that the medical staff does not need to manually oscillate the sampling tube. When the block contacts the oscillation plate, the reset spring is squeezed and contracted and drives the oscillation plate to retreat. At this time, the sampling tube continues to rotate and drives the block to engage the notch. At this time, the oscillation plate contacts and contracts and slaps the sampling tube forward under the action of the reset spring, oscillating the blood inside the sampling tube and removing the air therein, so as to achieve the beneficial effect of oscillating the sampling tube as a whole in all directions during the oscillation.

[0004] Regarding the above scheme: In the reference document, the sampling tube is rotated by rotating the swivel, and when the sampling tube rotates, it will drive the block to rotate together. When the block rotates, it will push the oscillation plate, thereby realizing the vibration of the sampling tube through the reset spring. However, when the block pushes the oscillation plate by rotating and moving, the reset spring connected to one side of the oscillation plate may be stretched and offset. After a long time, the reset spring is prone to deformation. At the same time, with long-term use, the reset spring will experience elastic decay, and the reset spring is not easy to replace, so that the vibration effect on the blood will gradually weaken after a long time. At the same time, because the swivel and the sampling tube are connected together, when medical staff need to draw blood from the patient, the shell will block the staff's line of sight, and the sampling tube is not easy to be removed from the inside of the shell, which increases the inconvenience of the sampling tube when in use. Utility Model Content

[0005] The purpose of the utility model is to provide a blood gas analyzer sampling gun head, which has the advantages of being able to conveniently install and disassemble the sampling head and also being able to easily vibrate the sampling head, thereby solving the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A blood gas analyzer sampling gun head comprises a shell and a sampling head, wherein the sampling head is connected to the inner side of the shell, the inner side of the shell is connected to a supporting ring block, the outer side of the sampling head is connected to a fixing ring block, the fixing ring block is arranged on the upper side of the supporting ring block, and the outer side of the sampling head is provided with an oscillation mechanism and a limiting mechanism, the oscillation mechanism is used to vibrate the sampling head, and the limiting mechanism is used to install the sampling head.

[0008] In order to facilitate the replacement of the return spring and increase the stability of the return spring, preferably, the oscillation mechanism includes a mounting groove provided on one side of the shell, the shell is located on the inner side of the mounting groove and is connected with a connecting block, the inner side of the connecting block is connected with a fixing plate, one side of the fixing plate is connected with a return spring, one end of the return spring is connected with an impact block, the outer side of the sampling head is connected with an inclined plate, the impact block is arranged on the outer side of the inclined plate, one side of the impact block is connected with a limiting rod, one end of the limiting rod passes through the fixing plate, the outer side of the limiting rod is connected with the fixing plate, the limiting rod is arranged on the inner side of the return spring, a slot is provided on one side of the shell, a connecting plate is connected to one side of the connecting block, a blocking block is connected to one side of the connecting plate, and the blocking block is movably connected to the inner side of the slot.

[0009] In order to facilitate the installation and removal of the sampling head and the shell, preferably, the limiting mechanism includes a connecting groove opened on one side of the shell, the shell is connected to a mounting block on the inner side of the connecting groove, the internal thread of the mounting block is connected to a one-way screw, one end of the one-way screw is connected to a limiting ring block, the outer side of the limiting ring block is connected to a sliding rod, the limiting ring block is arranged on the inner side of the fixing ring block, a sliding groove is opened on one side of the shell, and the sliding rod is connected to the inside of the sliding groove.

[0010] In order to facilitate the rotation of the fixed ring block, preferably, a connecting ring block is connected to the upper side of the fixed ring block, and a rotating rod is movably clamped on the inner side of the connecting ring block.

[0011] In order to increase the stability of the impact block when sliding, preferably, a slide plate is connected to one side of the impact block, a second hollow groove is opened on one side of the fixed plate, and the slide plate is movably inserted into the inner side of the second hollow groove.

[0012] In order to facilitate the staff to observe the state of the blood, preferably, a first hollow groove is opened on one side of the shell, and the shell is connected to a transparent glass on the inner side of the first hollow groove.

[0013] In order to reduce the possibility of damage to the sampling head due to collision, preferably, a protective plate is connected to the outer side of the sampling head, and a plurality of the protective plates are provided, and the plurality of the protective plates are used for collision prevention.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model has the advantages of being able to conveniently install and disassemble the sampling head and also being able to easily vibrate the sampling head. In actual use, the connection block can be conveniently disassembled through the connection between the card block and the card slot, thereby realizing the replacement of the reset spring. At the same time, the supporting ring block can realize the support and placement of the sampling head through the connection relationship between itself and the fixed ring block, and the reset spring can further limit the fixed ring block after being connected to the inner side of the fixed ring block, so that both the impact block and the sampling head have a detachable effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the top-sectional structure in the utility model;

[0018] Figure 3 It is a schematic diagram of the side section structure in the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the mounting block and the one-way screw in the embodiment of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the limiting ring block and the connecting ring block in the embodiment of the utility model.

[0021] In the figure: 1. shell; 2. sampling head; 3. oscillating mechanism; 31. mounting groove; 32. connecting block; 33. fixing plate; 34. reset spring; 35. limiting rod; 36. impact block; 37. inclined plate; 381. connecting plate; 382. card slot; 383. card block; 41. first hollow groove; 42. perspective glass; 5. limiting mechanism; 51. connecting groove; 52. mounting block; 53. one-way screw; 54. limiting ring block; 55. sliding rod; 57. sliding groove; 61. rotating rod; 62. connecting ring block; 7. supporting ring block; 8. protective plate; 9. fixing ring block; 101. slide plate; 102. second hollow groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides a technical solution: a blood gas analyzer sampling gun head, including a shell 1 and a sampling head 2, the sampling head 2 is slidably plugged into the inner side of the shell 1, the inner side of the shell 1 is screwed with a support ring block 7, the outer side of the sampling head 2 is movably bonded with a fixed ring block 9, the fixed ring block 9 is arranged on the upper side of the support ring block 7, the outer side of the sampling head 2 is provided with an oscillation mechanism 3 and a limit mechanism 5, the oscillation mechanism 3 is used to vibrate the sampling head 2, the limit mechanism 5 is used to install the sampling head 2, the shell 1 can be connected to the support ring block 7, and the support ring block 7 can fix the fixed ring block 9 plays a certain limiting and supporting role, so that when the sampling head 2 is placed on the inner side of the shell 1, it can be smoothly placed and used, and it is not easy to slip out from the inner side of the shell 1. The setting of the oscillation mechanism 3 makes it easier and more convenient for the staff to oscillate the blood collected on the inner side of the sampling head 2. At the same time, the setting of the limiting mechanism 5 makes it convenient and simple for the staff to install and disassemble the sampling head 2 and the shell 1. Oscillation of the blood helps to ensure the uniform mixing and stability of the blood sample.

[0024] See also Figure 1-3 The oscillation mechanism 3 includes a mounting groove 31 provided on one side of the housing 1, a connecting block 32 is slidably inserted into the inner side of the housing 1 located in the mounting groove 31, a fixing plate 33 is screwed to the inner side of the connecting block 32, a return spring 34 is welded to one side of the fixing plate 33, a striking block 36 is welded to one end of the return spring 34, an inclined plate 37 is movably bonded to the outer side of the sampling head 2, the striking block 36 is arranged on the outer side of the inclined plate 37, a limiting rod 35 is screwed to one side of the striking block 36, one end of the limiting rod 35 passes through the fixing plate 33, the outer side of the limiting rod 35 is slidably inserted into the fixing plate 33, and the limiting rod 35 is arranged on the inner side of the return spring 34;

[0025] In addition, a card slot 382 is provided on one side of the shell 1, a connecting plate 381 is screwed to one side of the connecting block 32, a card block 383 is screwed to one side of the connecting plate 381, and the card block 383 is movably connected to the inner side of the card slot 382. The shell 1 can connect the connecting block 32 through the mounting groove 31, and the connecting block 32 can realize the connection between the fixing plate 33 and the limiting rod 35, so that the fixing plate 33 can be used stably, and the limiting rod 35 can slide smoothly. The fixing plate 33 can install the impact block 36 through the return spring 34. At the same time, when the impact block 36 is pushed and moved, the return spring 34 will be pressed. 4 is squeezed, and then the impact block 36 can be reset by the elasticity of the reset spring 34. The inclined plate 37 connected to the outside of the sampling head 2 can smoothly squeeze the impact block 36 when the sampling head 2 rotates clockwise, so that the sampling head 2 and the blood inside the sampling head 2 can be shaken by the subsequent reset of the impact block 36. At the same time, the limit rod 35 can limit the movement of the impact block 36 and the expansion and contraction of the reset spring 34, so that the impact block 36 is not easy to deviate or shake when it moves and the reset spring 34 is not easy to expand and contract, thereby increasing the stability of the reset spring 34 and the impact block 36 when in use;

[0026] In addition, the connecting block 32 can install and fix the card block 383 through the connecting plate 381, and when the card block 383 is connected to the inner side of the card slot 382, ​​the connection and use of the connecting block 32 can be realized. After long-term use, the return spring 34 may experience elastic attenuation, thereby weakening the elastic oscillation effect of the impact block 36. The connection between the card block 383 and the card slot 382 makes the disassembly and replacement of the connecting block 32 sufficiently convenient.

[0027] See also Figure 1-5 The limiting mechanism 5 includes a connecting groove 51 provided on one side of the housing 1, the housing 1 is screwed with a mounting block 52 on the inner side of the connecting groove 51, the inner thread of the mounting block 52 is connected with a one-way screw 53, one end of the one-way screw 53 is slidably sleeved with a limiting ring block 54, the outer side of the limiting ring block 54 is screwed with a slide rod 55, the limiting ring block 54 is arranged on the inner side of the fixed ring block 9, a slide groove 57 is provided on one side of the housing 1, the slide rod 55 is slidably inserted in the inner side of the slide groove 57, and the housing 1 can install and connect the mounting block 52 through the connecting groove 51;

[0028] In addition, the mounting block 52 can be connected to the one-way screw 53, and the sliding rod 55 connected to one side of the limiting ring block 54 can limit the limiting ring block 54 through the connection between itself and the sliding groove 57. This allows the one-way screw 53 to smoothly drive the limiting ring block 54 to move when it rotates, and after the limiting ring block 54 moves to a certain distance, it can smoothly move to the inner side of the fixed ring block 9, thereby limiting the fixed ring block 9, so that the sampling head 2 can be more stable when rotating, and can effectively increase the possibility of the sampling head 2 moving significantly when it is impacted or vibrated.

[0029] See also Figure 1-4 : The upper side screw of the fixed ring block 9 is connected to the connecting ring block 62, and the inner side of the connecting ring block 62 is movably connected to the rotating rod 61. The fixed ring block 9 can be connected to the rotating rod 61 through the connecting ring block 62, and the setting of the rotating rod 61 can facilitate the staff to rotate the sampling head 2 clockwise.

[0030] See also Figure 2 : A slide plate 101 is screwed to one side of the impact block 36, and a second hollow groove 102 is opened on one side of the fixing plate 33. The slide plate 101 is movably inserted into the inner side of the second hollow groove 102. The impact block 36 can install and connect the slide plate 101, and the slide plate 101 can follow the impact block 36 into the second hollow groove 102. The slide plate 101 can smoothly limit the second hollow groove 102, thereby further increasing the stability of the impact block 36 during movement.

[0031] See also Figure 1 A first hollow groove 41 is provided on one side of the shell 1, and a transparent glass 42 is screwed to the inner side of the shell 1 located in the first hollow groove 41. The shell 1 can install and connect the transparent glass 42 through the first hollow groove 41. The setting of the transparent glass 42 allows the staff to observe the blood status inside the sampling head 2 without taking out the sampling head 2 after the sampling head 2 is shaken by the shaking mechanism 3.

[0032] See also Figure 2 : A protective plate 8 is movably bonded to the outer side of the sampling head 2, and a plurality of protective plates 8 are provided. The plurality of protective plates 8 are used for collision prevention. When the impact block 36 impacts the outer side of the sampling head 2 and causes the inner side of the sampling head 2 to vibrate, the outer side of the sampling head 2 may be worn to a certain extent due to the impact of the impact block 36, and the protective plate 8 can play a certain protective role on the outer side of the sampling head 2, thereby reducing the possibility of damage to the outer side of the sampling head 2.

[0033] Working principle: When the utility model is used, the staff can first use the sampling head 2 to draw blood from the patient. After drawing blood, the sampling head 2 can be placed on the inner side of the shell 1. After placement, the staff can rotate the one-way screw 53, and the rotation of the one-way screw 53 drives the limiting ring block 54 to move. When the limiting ring block 54 moves to the inner side of the fixed ring block 9, the limiting and connection of the sampling head 2 can be completed. It should be noted that when the fixed ring block 9 is connected to the inner side of the limiting ring block 54, it only plays a limiting role on it, and does not clamp it, so that the sampling head 2 can still rotate.

[0034] After that, the staff can rotate the sampling head 2 clockwise by the rotating rod 61. When the sampling head 2 rotates, it will smoothly drive the inclined plate 37 to rotate together, and the rotation of the inclined plate 37 will push and squeeze the impact block 36. After the inclined plate 37 squeezes the impact block 36, it continues to rotate to a certain angle and will no longer squeeze the impact block 36. At this time, the impact block 36 will be reset and rebounded by the elasticity of the reset spring 34, thereby hitting the sampling head 2, so that the blood inside the sampling head 2 can be smoothly oscillated. After that, it is only necessary to observe the blood state through the transparent glass 42. When it meets the state after oscillation, it is only necessary to take out the sampling head 2 from the inner side of the shell 1.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blood gas analyzer sampling gun head, comprising a housing (1) and a sampling head (2), characterized in that: The sampling head (2) is connected to the inner side of the shell (1), the inner side of the shell (1) is connected to a support ring block (7), the outer side of the sampling head (2) is connected to a fixed ring block (9), the fixed ring block (9) is arranged on the upper side of the support ring block (7), and the outer side of the sampling head (2) is provided with an oscillating mechanism (3) and a limiting mechanism (5), the oscillating mechanism (3) is used to vibrate the sampling head (2), and the limiting mechanism (5) is used to install the sampling head (2).

2. A blood gas analyzer sampling gun tip according to claim 1, characterized in that: The oscillating mechanism (3) comprises a mounting groove (31) provided on one side of the housing (1); the housing (1) is connected to a connecting block (32) on the inner side of the mounting groove (31); the inner side of the connecting block (32) is connected to a fixing plate (33); one side of the fixing plate (33) is connected to a return spring (34); one end of the return spring (34) is connected to a collision block (36); the outer side of the sampling head (2) is connected to an inclined plate (37); the collision block (36) is arranged on the outer side of the inclined plate (37); the collision block (36) A limiting rod (35) is connected to one side of the connecting block (32), one end of the limiting rod (35) passes through the fixing plate (33), the outer side of the limiting rod (35) is connected to the fixing plate (33), the limiting rod (35) is arranged on the inner side of the reset spring (34), a slot (382) is provided on one side of the shell (1), a connecting plate (381) is connected to one side of the connecting block (32), a locking block (383) is connected to one side of the connecting plate (381), and the locking block (383) is movably locked on the inner side of the slot (382).

3. The blood gas analyzer sampling gun tip according to claim 1, characterized in that: The limiting mechanism (5) comprises a connecting groove (51) provided on one side of the shell (1); the shell (1) is connected to a mounting block (52) on the inner side of the connecting groove (51); the inner thread of the mounting block (52) is connected to a one-way screw rod (53); one end of the one-way screw rod (53) is connected to a limiting ring block (54); the outer side of the limiting ring block (54) is connected to a sliding rod (55); the limiting ring block (54) is arranged on the inner side of the fixing ring block (9); a sliding groove (57) is provided on one side of the shell (1); and the sliding rod (55) is connected to the inside of the sliding groove (57).

4. The blood gas analyzer sampling gun tip according to claim 1, characterized in that: The upper side of the fixed ring block (9) is connected to a connecting ring block (62), and the inner side of the connecting ring block (62) is movably clamped with a rotating rod (61).

5. The blood gas analyzer sampling gun tip according to claim 2, characterized in that: A slide plate (101) is connected to one side of the impact block (36), a second hollow groove (102) is provided on one side of the fixing plate (33), and the slide plate (101) is movably inserted into the inner side of the second hollow groove (102).

6. The blood gas analyzer sampling gun tip according to claim 1, characterized in that: A first hollow groove (41) is provided on one side of the shell (1), and a transparent glass (42) is connected to the shell (1) on the inner side of the first hollow groove (41).

7. The blood gas analyzer sampling gun tip according to claim 1, characterized in that: A protective plate (8) is connected to the outer side of the sampling head (2), and a plurality of the protective plates (8) are provided, and the plurality of protective plates (8) are used for collision prevention.

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