CN209360917U - A blood collection auxiliary device - Google Patents

Abstract

The utility model relates to the field of medical instrument technology more particularly to the blood-sampling methods of a kind of blood collection auxiliary device and the blood collection auxiliary device.A kind of blood collection auxiliary device characterized by comprising half sole fixed plate；Forearm supporting plate, with the movable connection of half sole fixed plate；Rotating device, including rotation axis, rotation axis and half sole fixed plate are pivotally connected；And regulating device, it is set to forearm supporting plate, for unclamping or locking rotating device.The beneficial effects of the utility model are: it is few to provide a kind of occupied space, structure is simple, the blood collection auxiliary device operated conveniently, gathered person can voluntarily adjust the angle between palm fixed plate and arm supporting plate, angle of regulation range is big, in the case where mitigating gathered person's stress, completion safely and fast is taken a blood sample.

Description

A blood collection auxiliary device

technical field

The utility model relates to the technical field of medical instruments, in particular to a blood collection auxiliary device.

Background technique

Radial artery puncture is a medical technology operation widely used in clinical work, and is one of the essential operations in the medical diagnosis and treatment process, especially an important way to collect blood gas samples for patients and perform invasive arterial pressure monitoring during surgical anesthesia. Because radial artery blood collection is not affected by climate, environment, and patient position, it is not necessary to undress and undress, and the puncture site is easy to expose, which is easy for nurses and patients to accept.

Therefore, it is necessary to design a hand fixation device for radial artery puncture that is easy to obtain and easy to operate to adapt to clinical use. During the operation, the success rate of puncture will be affected due to the particularity of the anatomical site of the radial artery or the poor cooperation of the patient. However, due to the sliding nature of the radial artery, it is difficult to fix the strongest pulsating point on the radial artery according to conventional puncture methods, which may easily cause the puncture point and the strongest pulsating point to misalign, which will affect the accurate entry of the puncture needle into the artery. This design aims at the need of fixing the radial artery in the radial artery blood collection process in the prior art, and designs a structure that can adjust the dorsiflexion angle of the wrist, change the dorsiflexion angle, make the radial artery go straight, and finally keep the position of the strongest pulsation point No change, improve the puncture success rate. The purpose of the utility model is to provide a corresponding technical solution for the above-mentioned technical problems.

Chinese patent CN108272462A discloses an arterial auxiliary blood collection device, including a fixed plate, the fixed plate is rotatably connected with a rotating plate, a snap ring is provided at the connection between the fixed plate and the rotating plate, and a chute is provided at the position corresponding to the snap ring on the fixed plate , the chute is provided with a rotating shaft, the rotating shaft is connected with a connecting ring, the connecting ring is provided with an inner pipe, the inner pipe is rotatably connected with an outer pipe, and the bottom end of the outer pipe is provided with a chassis, and the outer pipe is rotated to make the chassis Make contact with the desktop on which the fixed plate is placed, so as to provide auxiliary support for the rotating plate. However, the arterial assisted blood collection device has a complex structure, and the snap ring is easy to get stuck, and the chassis must be supported on the table to achieve reliable fixation and support.

Utility model content

In order to solve at least one technical problem in the prior art, the utility model provides a blood collection auxiliary device with simple structure and convenient operation.

The purpose of this utility model is achieved through the following technical solutions:

A blood collection auxiliary device, characterized in that it comprises: a forefoot fixing plate; a forearm supporting plate, which is movably connected with the forefoot fixing plate; a rotating device, including a rotating shaft, which is pivotally connected with the forefoot fixing plate; The device is arranged on the forearm support plate and is used for loosening or locking the rotating device.

Further, the rotating device also includes a shaft fixing clip, the shaft fixing clip is fixed to the side of the forearm support plate facing the forefoot fixing plate, and the rotating shaft is placed in the shaft fixing clip to facilitate adjustment of the forefoot fixing plate and improve the flexibility of adjustment .

Further, there are at least two shaft fixing clips, and the rotation shaft passes through the first shaft fixing clip, the forefoot fixing plate and the second shaft fixing clip in sequence, so that the forefoot fixing plate is more stable.

Further, the adjustment device includes a fixed block, the fixed block is arranged close to the first shaft fixing clip, and the end of the rotating shaft near the first shaft fixing clip cooperates with the fixed block, so as to facilitate the adjustment of the angle between the forefoot fixing plate and the forearm supporting plate.

Further, a through hole is provided in the middle of the fixed block, and the end of the rotating shaft close to the fixing clip of the first shaft passes through the through hole, so as to facilitate the limitation of the rotating shaft.

Further, the fixed block also includes a fixing mechanism handle and a notch, the notch communicates with the through hole, and the fixing mechanism handle is used to loosen or lock the notch, so as to realize the adjustment between the forefoot fixing plate and the forearm supporting plate Angle.

Further, the angle between the forefoot fixing plate and the forearm supporting plate is 0-30°, so that the movement angle of the wrist joint is 30-60°.

Further, the adjusting device also includes a fixing plate arranged on the forearm support plate, and the fixing block is arranged on the fixing plate, so that the installation of the fixing block is more firm.

Furthermore, the upper end surface of the forefoot fixing plate and/or the forearm supporting plate is set as an arc-shaped groove, which conforms to the concept of ergonomics and makes the collected person more comfortable.

Further, the upper side wall of the forefoot fixing plate and/or the forearm supporting plate is provided with an empty slot, and a retractable restraint belt is arranged on the empty slot, on the one hand, the palm and/or arm of the collected person can be fixed, and on the other hand, It can also relieve the mental pressure of the collected persons.

Further, the blood collection method of the blood collection auxiliary device provided by the utility model includes the following steps:

a. Place the palm and arm on the blood collection auxiliary device and fix them with restraint straps respectively;

b. Loosen the handle of the fixing mechanism;

c. Adjust the forefoot fixed plate, the palm and the forearm arc form an arc;

d. Manually lock the handle of the fixing mechanism.

The beneficial effect of the utility model is that it provides a blood collection auxiliary device which occupies less space, has a simple structure and is convenient to operate. In the case of reducing the mental stress of the collected person, the blood collection can be completed safely and quickly.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative work.

Fig. 1 is the structural representation of the blood collection auxiliary device of the present utility model

Fig. 2 is a schematic top view of the blood collection auxiliary device of the present invention

Fig. 3 is the structural representation of the adjusting device of the present utility model

Fig. 4 is a schematic diagram of the use state of the blood collection auxiliary device of the present invention

Fig. 5 is a schematic diagram of another usage state of the blood collection auxiliary device of the present invention

Among them, 1-forefoot fixing plate, 11-forefoot restraining belt, 12-fixing plate empty slot, 2-forearm supporting plate, 21-forearm restraining belt, 22-supporting plate empty slot, 3-rotating device, 31 -Rotating shaft, 32-fixing clip of the first axis, 33-fixing clip of the second axis, 4-adjusting device, 41-fixing block, 42-fixing plate, 43-through hole, 44-handle of the fixing mechanism, 45-notch .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1-3, the blood collection auxiliary device includes a forefoot fixing plate 1 and a forearm supporting plate 2 that is movably connected with the forefoot fixing plate 1, and the upper end surfaces of both are provided with arc grooves, which are shaped like the palm And/or the arm is consistent, conforms to the concept of ergonomics, the forefoot fixing plate 1 and the side wall of the forearm supporting plate 2 are all provided with empty slots, the empty slots are provided with retractable restraint belts, the forefoot restraint belts 11 passes through the empty slot 12 of the fixing plate, and the forearm restraint belt 21 passes through the empty slot 22 of the support plate. In order to facilitate blood collection, the restraint belt is provided with an elastic adjustment device. When the restraint belt is loosened, when the collected person's palm and/or arm When putting it in, adjust the tightness adjustment device of the restraint belt to fix the palm and/or arm, so that the radial artery can be easily found and the blood collection can be successfully completed. The elastic adjustment device can be a flat bandage, one end of which is fixed on one of the empty slots, and passes through the other corresponding empty slot, and then through a tightening buckle, the length adjustment of the bandage can be realized, or it can be adjusted in the empty slot Set an elastic bandage on the top, pull up the bandage, when the palm and/or arm of the collected person is put in, loosen the bandage, so that the bandage will rebound, so as to fix the palm and/or arm of the collected person, or It is other embodiments, as long as it can be fixed by adjusting the tightness, it is all within the protection scope of the present utility model.

The forefoot fixed plate 1 and the forearm supporting plate 2 are pivotally connected by the rotating device 3. Specifically, a shaft hole is arranged at the bottom of the forefoot fixed plate 1 near the forearm supporting plate 2, and the rotating shaft 31 passes through it in turn. Through the shaft holes on both sides, and fixedly connected with the forefoot fixed plate 1, to ensure that there will be no relative rotation between the rotating shaft 31 and the forefoot fixed plate 1, it can be fixed by welding, or between the rotating shaft 31 and the palm fixed plate 1 A limiting structure is arranged between them, and when the rotating shaft 31 passes through the shaft hole, the locking position on the rotating shaft extends into the draw-in groove on the palm fixing plate to realize snap-fitting.

The side of the arm supporting plate 2 close to the palm fixing plate is provided with a first axis fixing clip 32 and a second axis fixing clip 33, the side of the arm supporting plate 2 is provided with a fixing plate 42, and the fixing block 41 is installed on the fixing plate 42 . The fixed block 41 is provided with a through hole 43. In order to realize the rotation of the palm fixed plate 1, the rotating shaft passes through the fixed block 41, the fixed plate 42, the first shaft clamp 32, the shaft hole and the second shaft clamp 33 successively. The diameter of the hole 43 is slightly larger than the diameter of the rotating shaft, so that the palm fixed plate 1 can rotate around the axis of the rotating shaft 31, and an angle is formed between the palm fixed plate 1 and the arm support plate 2, so as to adapt to different collected persons , for easy understanding, the fixing plate 42 is also provided with a through hole at least not smaller than the fixing block. The fixing block 41 is also provided with a notch 45 communicating with the through hole 43 , by adjusting the handle 44 of the fixing mechanism, the notch 45 can be loosened or locked, thereby loosening or clamping the rotating shaft 31 . When the handle 44 of the fixing mechanism is at the first position, the notch 45 is in a relaxed state, and now the rotating shaft 31 can rotate freely in the through hole 43; when the handle 44 of the fixing mechanism is at the second position, the notch 45 is in a locked state At this time, the fixed block 41 clamps the rotating shaft 31, and the rotating shaft 31 cannot rotate in the through hole 43.

As shown in Figure 4-5, the blood collection auxiliary device provided by the utility model has two different working states during the specific implementation process.

Working state 1: After the forefoot restraint belt 11 and the forearm restraint belt 21 are fixed, the palm and the forearm form an arc due to dorsiflexion, so that the radial artery moves straight, and the pulse point does not change after measurement. If the blood vessels on the arm can be easily found at this time, there is no need to adjust the blood collection auxiliary device provided by the utility model in this state.

Working state 2: the utility model under this state is the state displayed after adjusting the forefoot fixing plate. Since the positions of the blood vessels of each person are not exactly the same, some people need to use the adjustment mechanism of the present invention to assist in finding the radial artery when drawing blood from the radial artery. The adjustment steps are: a. Place the palm and the arm on the blood collection auxiliary device, and fix them respectively through the restraint belt; b. Loosen the handle 44 of the fixing mechanism; c. Adjust the front palm fixing plate 1, and the palm and the forearm arc form an arc; d . Manually lock the handle 44 of the fixing mechanism.

Through the control test, among the 20 cases of the population, 10 cases had changes in the direction of the radial artery and 10 cases had changes in the pulse point due to unfixed dorsiflexion angles. After fixing the dorsiflexion angle under the same experimental conditions, there was one case where the direction of the radial artery changed, but no change in the pulse point.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A blood collection auxiliary device, characterized in that, comprising: Forefoot fixed plate; The forearm supporting plate is movably connected with the forefoot fixing plate; The rotating device includes a rotating shaft, and the rotating shaft is pivotally connected to the forefoot fixing plate; and an adjusting device, arranged on the forearm supporting plate, for releasing or locking the rotating device. 2. The blood collection auxiliary device according to claim 1, wherein the rotating device further comprises a shaft fixing clip, and the shaft fixing clip is fixed to the side of the forearm supporting plate facing the forefoot fixing plate , the rotating shaft is placed in the shaft fixing clip. 3. The blood collection auxiliary device according to claim 2, wherein there are at least two shaft fixing clips, and the rotating shaft passes through the first shaft fixing clip, the front palm fixing plate and the second shaft fixing clip in sequence. folder. 4. The blood collection auxiliary device according to claim 3, wherein the adjusting device comprises a fixed block, the fixed block is arranged close to the first shaft fixing clip, and the rotating shaft is fixed close to the first shaft The ends of the clips cooperate with the fixed blocks. 5 . The blood collection auxiliary device according to claim 4 , wherein a through hole is provided in the middle of the fixing block, and the end of the rotating shaft close to the first shaft fixing clip passes through the through hole. 6 . 6. The blood collection auxiliary device according to claim 5, wherein the fixing block further comprises a fixing mechanism handle and a notch, the fixing mechanism handle is used to loosen or lock the notch, and the notch The part communicates with the through hole. 7 . The blood collection auxiliary device according to claim 6 , wherein the adjusting device further comprises a fixing plate arranged on the forearm support plate, and the fixing block is arranged on the fixing plate. 8 . 8. The blood collection auxiliary device according to any one of claims 1-7, characterized in that, the angle between the forefoot fixing plate and the forearm supporting plate is 0-30°. 9. The blood collection auxiliary device according to any one of claims 1-7, wherein the upper end surface of the forefoot fixing plate and/or the forearm supporting plate is arranged as an arc-shaped groove. 10. The blood collection auxiliary device according to any one of claims 1-7, characterized in that, the upper side wall of the forefoot fixing plate and/or the forearm supporting plate is provided with an empty groove, and the empty groove There are retractable restraint straps on it.