Arm fixing and pulse pressing device of venous blood sampling robot

Abstract

The utility model discloses an arm fixing and pulse pressing device of a vein blood sampling robot, which relates to the field of blood sampling robots and comprises a lower shell, a linear module fixed on the upper portion of the front end of the lower shell and connected with a first motor, a moving part of the linear module is connected with a handle, an upper shell is arranged on the upper portion of the lower shell, and a second motor is fixed on the lower portion of the rear end of the upper shell. The second motor is connected with the tourniquet winding wheel, a first limiting piece is arranged at the front end of the tourniquet winding wheel, a second limiting piece is arranged at the rear end of the tourniquet winding wheel, one end of the tourniquet is fixed to the tourniquet winding wheel, and the other end of the tourniquet is fixed to the upper shell. The pulse pressing and opening actions of the pulse pressing belt are achieved in a motor direct drive mode, the chelidon is driven to reach a designated position in a linear module direct drive mode, the structure is simple and reliable, and the arm fixing and pulse pressing functions in the blood sampling process can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of venous blood sampling robots, in particular to an arm fixing and pulse compression device of a venous blood sampling robot. Background Art

[0002] As an important part of the medical diagnosis process, venous blood sampling has strict requirements on the accuracy of blood samples and patient experience. With the continuous development of medical technology, automated and intelligent medical equipment has gradually been applied in clinical practice, among which venous blood sampling robots are one of the innovative technologies. Through automated operation, venous blood sampling robots aim to improve the accuracy and efficiency of blood collection, reduce the workload of medical staff, and improve the comfort of patients.

[0003] In the development of venous blood sampling robots, the design of arm fixation and pulse compression devices is crucial. The main function of the arm fixation device is to ensure the stability of the patient's arm during the blood collection process to prevent blood collection failure or patient discomfort caused by arm shaking. The pulse compression device makes the veins more prominent by applying appropriate pressure, which facilitates the robot to accurately locate and puncture the blood vessels. Existing arm fixation and pulse compression devices mostly use indirect drive, with multiple layers of transmission links in the middle, and a complex structure, which makes the device larger and inconvenient to use.

[0004] Therefore, this paper proposes a venous blood collection robot arm fixing and pulse compression device. The pulse compression belt is directly driven by a motor, and the handle is directly driven by a linear module. The entire device has a simple structure and a small size, which provides more possibilities for the diversification of the blood collection robot. Summary of the invention

[0005] The utility model is proposed to simplify the arm fixing and pulse compression structure of the venous blood sampling robot. The utility model aims to provide an arm fixing and pulse compression device for the venous blood sampling robot, which has the arm fixing and pulse compression functions, improves the stability while simplifying the structure, and improves the success rate of blood sampling.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: A venous blood sampling robot arm fixing and pulse compression device, comprising a lower shell, a linear module is fixed to the upper front end of the lower shell, the linear module is connected to a first motor, a handle is connected to the moving part of the linear module, an upper shell is arranged on the upper part of the lower shell, a second motor is fixed to the lower rear end of the upper shell, the second motor is connected to a pulse compression belt winding wheel, a first limiter is arranged at the front end of the pulse compression belt winding wheel, a second limiter is arranged at the rear end of the pulse compression belt winding wheel, one end of the pulse compression belt is fixed to the pulse compression belt winding wheel, and the other end is fixed to the upper part of the upper shell.

[0007] Preferably, a first photoelectric sensor and a second photoelectric sensor are installed at the lower front end of the upper shell, located at both ends of the linear module in the front-to-back direction, and a shielding plate is installed at the lower part of the handle. The first photoelectric sensor, the second photoelectric sensor and the shielding plate are all located on the same side of the linear module.

[0008] Preferably, the handle comprises a bracket and a grip rod, the grip rod is fixed on the bracket, and a first switch is mounted on the grip rod.

[0009] Preferably, the second motor is installed on the lower part of the upper shell by using a connecting member, the first limiting member is installed on the lower part of the upper shell, and the second limiting member is connected to the first limiting member.

[0010] Preferably, a first slot is provided at the front end of the upper shell, a second slot and a round hole are provided at the rear end, and a second switch is installed on the round hole.

[0011] Preferably, a third slot is provided on the upper portion of the first limiting member.

[0012] Compared with the prior art, the beneficial effect of the utility model is that the compression belt is directly driven by a motor, and the handle is directly driven by a linear module. The entire device has a simple structure, a small size, and high stability, which provides more possibilities for the diversification of the blood collection robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure based on the utility model;

[0015] Figure 2 This is a schematic diagram of the lower shell and handle structure based on the utility model;

[0016] Figure 3 It is a schematic diagram of the upper shell structure based on the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the upper shell and the pulse compression part based on the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the driving part of the compression belt based on the utility model;

[0019] Figure 6 This is a schematic diagram of the first position limiting member structure based on the utility model.

[0020] 1. Lower shell; 101. First motor; 102. Linear module; 103. Moving part of linear module; 2. Upper shell; 201. First slot; 202. Second slot; 203. Round hole; 204. Second switch; 205. First photoelectric sensor; 206. Second photoelectric sensor; 3. Handle; 301. Bracket; 302. Hand grip; 303. First switch; 304. Shielding piece; 401. Connector; 402. Second motor; 403. Compression belt winding wheel; 404. First limiter; 4041. Third slot; 405. Second limiter; 406. Compression belt. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0022] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model. Example 1

[0023] The embodiment of the utility model provides a venous blood sampling robot arm fixing and pulse compression device, such as Figure 1-6 As shown, it includes a lower shell 1, a linear module 102 is fixed to the upper front end of the lower shell 1, the linear module 102 is connected to the first motor 101, the linear module moving part 103 is connected to the handle 3, an upper shell 2 is arranged on the upper part of the lower shell 1, a second motor 402 is fixed to the lower rear end of the upper shell 2, the second motor 402 is connected to the compression belt winding wheel 403, a first limiting piece 404 is arranged at the front end of the compression belt winding wheel 403, a second limiting piece 405 is arranged at the rear end of the compression belt winding wheel 403, one end of the compression belt 406 is fixed on the compression belt winding wheel 403, and the other end is fixed to the upper part of the upper shell 2.

[0024] The working principle and beneficial effects of the above technical solution are as follows: the arm is placed along the long axis direction of the upper shell 2 through the annular compression cuff 406. In the initial stage, the handle 3 is located at the proximal end of the blood sampling object. When the hand holds the handle 3, the handle 3 drives the arm to move toward the front end under the drive of the first motor 101 until the arm is guided to a suitable position. After the arm is in place, the second motor 402 drives the compression cuff 406 to rotate and wrap around the compression cuff winding wheel 403 with a constant force. The compression cuff 406 gradually tightens and presses the arm. After the puncture is successful, the second motor 402 reverses, and the compression cuff 406 gradually loosens and releases the arm. Among them, the compression cuff 406 can be made of a flexible material with a certain hardness, such as nylon-66. When the second motor reverses, the flexibility of the compression cuff 406 itself can release the arm by itself and become an initial larger annular state. Example 2

[0025] On the basis of the above-mentioned embodiment 1, Figure 1-6 As shown, the first photoelectric sensor 205 and the second photoelectric sensor 206 are installed at the lower front end of the upper shell 2, and are located at both ends of the linear module 102 in the front-to-back direction. The shielding plate 304 is installed at the lower part of the handle 3, and the first photoelectric sensor 205, the second photoelectric sensor 206 and the shielding plate 304 are all located on the same side of the linear module 102.

[0026] The working principle and beneficial effects of the above technical solution are as follows: when the handle 3 moves forward and backward, it must be arranged between the first photoelectric sensor 205 and the second photoelectric sensor 206 to prevent the linear module moving part 103 from driving the handle 3 to hit the two ends of the linear module 102 in case of an accident, causing an abnormality. If an abnormality occurs, the shielding sheet 304 will shield the first photoelectric sensor 205 or the second photoelectric sensor 206, and an alarm will be issued to remind the operator of the abnormality. Example 3

[0027] On the basis of the above-mentioned embodiments 1-2, Figure 1-6 As shown, the handle 3 includes a bracket 301 and a grip bar 302, the grip bar 302 is fixed on the bracket 301, and a first switch 303 is installed on the grip bar 302. The upper shell 2 is provided with a first slot 201 at the front end, a second slot 202 and a round hole 203 at the rear end, and a second switch 204 is installed on the round hole 203.

[0028] The working principle and beneficial effects of the above technical solution are as follows: the first slot 201 is provided to ensure that the handle 3 can move forward and backward. When the subject of blood collection holds the handle 3, the hand will press the first switch 303. After receiving the signal, the first motor 101 drives the linear module motion part 103 to drive the handle 3 to move forward. When the raised part on the back of the elbow fossa presses the second switch 204, the linear module motion part 103 stops moving, the elbow fossa is dragged to a fixed position, and the position of the compression cuff 406 is fixed at 70 mm from the elbow fossa. In this way, it can be ensured that the elbow fossa of different individuals with different lengths of arms can be dragged to the same position each time, which is convenient for blood collection. Example 4

[0029] Based on the above embodiments 1-3, Figure 1-6 As shown, the second motor 402 is installed on the lower part of the upper shell 2 by using the connecting member 401, the first limiting member 404 is installed on the lower part of the upper shell 2, and the second limiting member 405 is connected to the first limiting member 404. The upper part of the first limiting member 404 is provided with a third slot 4041.

[0030] The working principle and beneficial effects of the above technical solution are as follows: the first limiting member 404 and the second limiting member 405 leave a certain space in the radial direction with the compression belt winding wheel 403 to ensure that the compression belt 406 will not get stuck when tightening and relaxing, and a certain space is also left in the front and rear directions to ensure that there is no interference when the compression belt winding wheel 403 rotates. The above plays the role of limiting the front, back, up, down, left and right positions of the compression belt 406. The first stopper 404 is provided with a third slot 4041 on the upper part, and the compression belt 406 is inserted into the second slot 202, and then into the third slot 4041, and then fixed on the compression belt winding wheel 403. The circumference of the compression belt winding wheel 403 is partially cut off, and one end of the compression belt 406 is fixed at the notch position, in order to make the wound first layer of compression belt and the second layer of compression belt contact at the screw locking position of the compression belt 406, without being affected by the screw head, so as to facilitate the tightening and loosening of the compression belt 406. At the same time, the centers of the second slot 202 and the third slot 4041 are on the same line, and the two are arranged obliquely to ensure that the compression belt 406 enters the second slot 202 and the third slot 4041 in the tangential direction as much as possible. The other side of the compression belt 406 is fixed on the upper shell 2, and the fixing part is arranged obliquely, in order to make the compression belt 406 round when it is relaxed to the maximum diameter, so as to facilitate the blood collector's arm to pass through.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A venous blood sampling robot arm fixing and pulse compression device, characterized in that: The invention comprises a lower shell (1), a linear module (102) is fixed at the upper front end of the lower shell (1), the linear module (102) is connected to the first motor (101), the linear module moving part (103) is connected to the handle (3), an upper shell (2) is arranged at the upper part of the lower shell (1), a second motor (402) is fixed at the lower rear end of the upper shell (2), the second motor (402) is connected to the compression belt winding wheel (403), a first limiting member (404) is arranged at the front end of the compression belt winding wheel (403), a second limiting member (405) is arranged at the rear end of the compression belt winding wheel (403), one end of the compression belt (406) is fixed on the compression belt winding wheel (403), and the other end is fixed to the upper part of the upper shell (2).

2. A venous blood sampling robot arm fixing and pulse compression device according to claim 1, characterized in that: A first photoelectric sensor (205) and a second photoelectric sensor (206) are installed at the lower front end of the upper shell (2), and are located at two ends of the linear module (102) in the front-to-back direction. A shielding sheet (304) is installed at the lower part of the handle (3). The first photoelectric sensor (205), the second photoelectric sensor (206) and the shielding sheet (304) are all located on the same side of the linear module (102).

3. A venous blood sampling robot arm fixing and pulse compression device according to claim 1, characterized in that: The handle (3) comprises a bracket (301) and a grip rod (302); the grip rod (302) is fixed on the bracket (301); and a first switch (303) is mounted on the grip rod (302).

4. A venous blood sampling robot arm fixing and pulse compression device according to claim 1, characterized in that: The second motor (402) is mounted on the lower part of the upper shell (2) using a connecting member (401), the first limiting member (404) is mounted on the lower part of the upper shell (2), and the second limiting member (405) is connected to the first limiting member (404).

5. The venous blood sampling robot arm fixing and pulse compression device according to claim 1, characterized in that: The upper shell (2) is provided with a first slotted hole (201) at the front end, and a second slotted hole (202) and a round hole (203) at the rear end, and a second switch (204) is mounted on the round hole (203).

6. A venous blood sampling robot arm fixing and pulse compression device according to claim 1, characterized in that: A third slot hole (4041) is provided on the upper portion of the first limiting member (404).

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