Radial artery puncture assist device

Abstract

The utility model relates to a radial artery puncture assist device, which comprises a front arm, a rear arm, a rear arm, an upper arm and a lower arm, the rear arm is detachably connected with the front arm, the interior of the rear arm is semi-arc-shaped, and second supporting wings are arranged on the two sides of the rear arm; the adjusting assembly is arranged at the rear end of the front arm and is clamped with the rear arm to adjust the inclined included angle between the front arm and the rear arm; the binding assembly is arranged at the bottom of the front arm and the bottom of the rear arm and used for binding the arms of a puncture person. The utility model has the beneficial effects that the front arm and the rear arm are detachably connected, so that the front arm and the rear arm can be conveniently assembled in different included angle states so as to be suitable for different persons to use, the front arm and the rear arm can be clamped and fixed through the positioning bolt after adjustment is completed, and relative rotation of the front arm and the rear arm can be effectively limited due to the clamping teeth and the clamping groove after fixation, so that the working efficiency is improved. After being drawn out, the binding belt can be stuck and buckled through the hook-and-loop fastener loop face and the hook-and-loop fastener thorn face of the binding belt, so that the binding effect is achieved, and the arm and the palm are fixed to the front arm and the rear arm respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a radial artery puncture assistor. Background Art

[0002] Collecting blood gas from the radial artery is more difficult than venous puncture. The skin at the puncture site 2 cm above the wrist joint on the palmar side of the forearm is routinely disinfected. The operator palpates the artery along the radial head with the index finger, middle finger and ring finger of the left hand, places the middle finger at the most obvious pulsation point, lifts the middle finger, and fixes the skin for needle insertion with the index finger and ring finger. The traditional blood collection site uses the strongest point of the radial artery as the fixed point for puncture, and the blood collection needle insertion point is determined by the operator's feeling. The radial artery is relatively thin, and the pulsation point is in the shape of a strip. The pulsation can be felt within a relatively long section, and careful operation is required for the blood collection position.

[0003] When a nurse performs a radial artery puncture, the patient needs to abduct the palm and tense the skin at the puncture site to fully expose the part with the strongest radial artery pulsation. At this time, the patient's high cooperation is required. The patient's cooperation degree is directly proportional to the success rate of radial artery blood gas collection. If the patient cannot fully expose the part with the strongest radial artery pulsation, the success rate of the nurse's puncture will be reduced, and the patient's pain will be increased. Especially for critically ill elderly patients, patients with poor limb mobility and patients with poor cooperation, when collecting blood gas, two nurses are required, one for blood collection and the other for fixing the patient's hand, which will increase the number of nursing staff involved. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] In order to solve the above problems of the prior art, the utility model provides a radial artery puncture assistor, which can restrain the patient's arm to limit the movement of the palm and fully expose the part with the strongest radial artery pulsation.

[0006] (II) Technical Solutions

[0007] In order to achieve the above object, the main technical solution adopted by the utility model is as follows:

[0008] A radial artery puncture assistor, comprising:

[0009] A forearm, which is semi-circular inside and has first wing portions on both sides;

[0010] A posterior arm, which is detachably connected to the forearm, is semi-circular inside and has second wing portions on both sides;

[0011] An adjusting assembly, which is arranged at the rear end of the forearm and is clamped with the posterior arm to adjust the inclination angle between the forearm and the posterior arm;

[0012] A binding assembly, which is arranged at the bottoms of the forearm and the posterior arm and is used for binding the arm of the puncturer.

[0013] The adjusting assembly includes an adjusting chuck. A plurality of clamping grooves are formed in the inner side wall of the adjusting chuck. A clamping tooth adapted to the clamping groove is provided on the side wall of the rear arm. The clamping tooth is clamped in the clamping groove to limit the relative rotation of the front arm and the rear arm.

[0014] The adjusting assembly further includes a positioning bolt. A threaded hole is formed in the middle of the side wall of the rear arm. The positioning bolt is threadedly connected to the threaded hole to fix the front arm and the rear arm.

[0015] The binding assembly includes a bracket. A support shaft is rotatably connected to the inner side wall of the bracket. A binding belt is provided on the outer wall of the support shaft. One side of the binding belt is a hook surface of Velcro and the other side is a loop surface of Velcro.

[0016] One end of the support shaft passing through the bracket is fixedly connected to a ratchet. A clamping component for restricting the rotation of the ratchet is further provided on the side wall of the bracket.

[0017] The clamping component includes a clamping member rotatably connected to the bracket. A spring is fixedly connected to the side wall of the clamping member. One end of the spring is fixedly connected to a fixing block, and the fixing block is fixedly connected to the bracket.

[0018] The clamping member has a handle and a pawl, and the pawl is adapted to the ratchet.

[0019] (III) Beneficial effects

[0020] The beneficial effects of the present utility model are as follows: Through the settings of the front arm, the rear arm, the adjusting assembly and the binding assembly, the front arm and the rear arm are detachably connected, so that it is convenient to assemble the two in different included angle states, thus adapting to different users. After the adjustment is completed, the front arm and the rear arm can be clamped and fixed by the positioning bolt. After being fixed, due to the existence of the clamping teeth and the clamping grooves, the relative rotation of the two can be effectively restricted. After the binding belt is pulled out, it can be pasted and buckled through its own hook surface and loop surface of Velcro, so as to form a binding effect, and the arm and the palm are respectively fixed on the front arm and the rear arm. After being fixed, under the elastic potential energy of the spring, the pawl and the ratchet will be clamped, so as to restrict the pulling out of the binding belt. In this bending state, the strongest pulsation part of the radial artery of the patient is fully exposed, which is convenient for the nurse to operate. Description of the drawings

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 is a split structural schematic diagram of the present utility model;

[0023] Figure 3 is a structural schematic diagram of the binding assembly of the present utility model;

[0024] Figure 4This is a schematic view of the second perspective of the restraint assembly of the present utility model.

[0025]

Explanation of the reference numerals

[0026] 1. Forearm; 11. First wing; 2. Rear arm; 21. Second wing; 3. Adjustment assembly; 31. Adjustment chuck; 32. Card slot; 33. Card teeth; 34. Positioning bolt; 35. Threaded hole; 4. Restraint assembly; 41. Bracket; 42. Support shaft; 43. Restraint strap; 44. Fastening member; 45. Spring; 46. Fixed block; 47. Ratchet wheel. Detailed implementation mode

[0027] In order to better explain the present utility model for easy understanding, the present utility model will be described in detail below in conjunction with the drawings through specific implementation modes.

[0028] Please refer to Figures 1 to 4 As shown, the radial artery puncture assistor of the present utility model includes:

[0029] A forearm 1, which is semi-circular inside and has first wings 11 on both sides;

[0030] A rear arm 2, which is detachably connected to the forearm 1, is semi-circular inside, and has second wings 21 on both sides;

[0031] An adjustment assembly 3, which is arranged at the rear end of the forearm 1 and is clamped with the rear arm 2 to adjust the inclination angle between the forearm 1 and the rear arm 2;

[0032] A restraint assembly 4, which is arranged at the bottoms of the forearm 1 and the rear arm 2 and is used to bind the arm of the puncturer. In the actual implementation process, the forearm 1 and the rear arm 2 serve as support points. The forearm 1 is used to fix the palm, the rear arm 2 is used to fix the arm, and the angle between the forearm 1 and the rear arm 2 is used to support the radial artery part. The angle between the forearm 1 and the rear arm 2 can also be adjusted for different personnel. After the arm and the palm are respectively placed in place, the arm and the palm are respectively fixed by the restraint assembly 4 to prevent the patient's arm and palm from bending, so as to facilitate the puncture operation by the nurse.

[0033] Optionally, the adjustment assembly 3 includes an adjustment chuck 31. A plurality of card slots 32 are formed on the inner side wall of the adjustment chuck 31. Card teeth 33 adapted to the card slots 32 are arranged on the side wall of the rear arm 2, and the card teeth 33 are clamped in the card slots 32 to limit the relative rotation of the forearm 1 and the rear arm 2. In the actual implementation process, the number of the card teeth 33 and the card slots 32 is multiple and is arranged in a circular array. When the card teeth 33 are inserted into the card slots, the forearm 1 and the rear arm 2 cannot rotate, thereby restricting the rotation of the forearm 1 and the rear arm 2.

[0034] Optionally, the adjusting component 3 further includes a positioning bolt 34. A threaded hole 35 is formed in the middle of the side wall of the rear arm 2. The positioning bolt 34 is threadedly connected to the threaded hole 35 to fixedly connect the front arm 1 and the rear arm 2. During the actual implementation process, the positioning bolt 34 is inserted into the adjusting chuck 31 and then threadedly connected to the threaded hole 35. At this time, by squeezing the adjusting chuck 31, the card slot 32 and the card teeth 33 are effectively inserted and matched. When adjustment is required, the positioning bolt 34 can be removed for adjustment.

[0035] Optionally, the binding component 4 includes a bracket 41. A support shaft 42 is rotatably connected to the inner side wall of the bracket 41. A binding belt 43 is arranged on the outer wall of the support shaft 42. One side of the binding belt 43 is a hook surface of Velcro and the other side is a loop surface of Velcro. During the actual implementation process, the binding belt is pulled out. After the binding belt 43 winds around above the front arm 1 or the rear arm 2 for one week, the hook surface of Velcro is bonded to the loop surface of Velcro to fix the binding belt 43. The bottom end of the binding belt 43 is fixed to the support shaft 42. Therefore, when the binding belt 43 moves, the support shaft 42 will rotate relative to the bracket 41, thereby driving the ratchet wheel 47 to rotate. Therefore, when pulling out the binding belt 43, the positioning component needs to be opened first.

[0036] Optionally, one end of the support shaft 42 passing through the bracket 41 is fixedly connected to a ratchet wheel 47. A positioning component for restricting the rotation of the ratchet wheel 47 is further arranged on the side wall of the bracket 41. During the actual implementation process, the positioning component can restrict the rotation of the ratchet wheel 47, thereby ensuring the stability of the binding belt 43 after the binding belt 43 is fixed.

[0037] Optionally, the positioning component includes a clamping member 44 rotatably connected to the bracket 41. A spring 45 is fixedly connected to the side wall of the clamping member 44. One end of the spring 45 is fixedly connected to a fixing block 46, and the fixing block 46 is fixedly connected to the bracket 41. During the actual implementation process, the spring 45 provides elastic potential energy, thereby pushing the clamping member 44 to abut against the ratchet wheel 47 and restricting the rotation of the ratchet wheel 47. When the support shaft 42 needs to move, the clamping member 44 is toggled, so that the clamping member 44 compresses the spring 45 and thus disengages from the ratchet wheel 47. At this time, the support shaft 42 can rotate. After releasing the clamping member 44, the spring 45 pushes the clamping member 44 to automatically reset to restrict the rotation of the ratchet wheel 47.

[0038] Optionally, the clamping member 44 has a handle and a pawl, and the pawl is adapted to the ratchet wheel 47. During the actual implementation process, the pawl and the ratchet wheel 47 are clamped to fix the support shaft 42, and unlocking is completed when the pawl is disengaged from the ratchet wheel.

[0039] The basic principles, main features and advantages of the present utility model have been shown and described above. Moreover, the standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can all be customized according to the description in the specification and the drawings. The specific connection manners of each part all adopt the mature conventional means such as bolts, rivets, welding, etc. in the prior art. The machines, parts and equipment all adopt the conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection manner in the prior art, no further details will be given here.

[0040] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. All equivalent transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in the relevant technical fields, are equally included in the patent protection scope of the present utility model.

Claims

1. A radial artery puncture assistor, characterized in that: Comprising: A forearm (1) with a semi-circular interior and first wing portions (11) on both sides; A rear arm (2) detachably connected to the forearm (1), with a semi-circular interior and second wing portions (21) on both sides; An adjustment assembly (3) arranged at the rear end of the forearm (1), snap-connected to the rear arm (2) to adjust the tilt angle between the forearm (1) and the rear arm (2); A restraint assembly (4) provided at the bottoms of the forearm (1) and the rear arm (2) for binding the arm of the puncturer.

2. The radial artery puncture assistor according to claim 1, characterized in that: The adjustment assembly (3) includes an adjustment chuck (31), and a plurality of card slots (32) are formed in the inner side wall of the adjustment chuck (31). A card tooth (33) adapted to the card slots (32) is provided on the side wall of the rear arm (2), and the card tooth (33) is snap-connected in the card slots (32) to restrict relative rotation between the forearm (1) and the rear arm (2).

3. The radial artery puncture assistor according to claim 2, characterized in that: The adjustment assembly (3) further includes a positioning bolt (34). A threaded hole (35) is formed in the middle of the side wall of the rear arm (2), and the positioning bolt (34) is threadedly connected to the threaded hole (35) to fix the forearm (1) and the rear arm (2).

4. The radial artery puncture assistor according to claim 1, wherein: The restraint assembly (4) includes a bracket (41). A support shaft (42) is rotatably connected to the inner side wall of the bracket (41), and a restraint strap (43) is provided on the outer wall of the support shaft (42). One side of the restraint strap (43) is a hook surface of Velcro and the other side is a loop surface of Velcro.

5. The radial artery puncture assistor according to claim 4, characterized in that: One end of the support shaft (42) passing through the bracket (41) is fixedly connected to a ratchet wheel (47), and a positioning component for restricting the rotation of the ratchet wheel (47) is further provided on the side wall of the bracket (41).

6. The radial artery puncture assistor according to claim 5, wherein: The positioning component includes a latch member (44) rotatably connected to the bracket (41). A spring (45) is fixedly connected to the side wall of the latch member (44), and one end of the spring (45) is fixedly connected to a fixing block (46), and the fixing block (46) is fixedly connected to the bracket (41).

7. The radial artery puncture assistor according to claim 6, characterized in that: The latch member (44) has a handle and a pawl, and the pawl is adapted to the ratchet wheel (47).

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