CN215914609U

CN215914609U - Hand fixing device

Info

Publication number: CN215914609U
Application number: CN202121945425.1U
Authority: CN
Inventors: 于春妮; 魏军; 龚玉蕾; 陈洪云; 樊晓军
Original assignee: Xuanwu Hospital
Current assignee: Xuanwu Hospital
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-03-01
Anticipated expiration: 2031-08-18

Abstract

The utility model relates to an artery blood sampling hand fixing device which at least comprises a pad for raising a hand. The first end of the mat is provided with a finger tip fixing assembly. The finger tip fixing component comprises a ball body and a finger fixing component used for restraining fingers of a user from holding the ball body. The ball body and the finger fixing component are movably connected through a sliding block which is arranged on the finger fixing component and matched with each other and a sliding groove which is arranged on the ball body. The utility model can assist medical staff to fix the finger end of a patient when in arterial blood collection, so that the wrist skin is tensed for blood collection; and can realize flexible accomodating, reduce the device volume when not using to save the storage space.

Description

Hand fixing device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a hand fixing device.

Background

Respiratory department patient almost all need carry out artery blood sampling in order to know patient's blood oxygen condition when income hospital, but because wrist blood sampling puncture degree of difficulty is high, the patient does not cooperate, leads to medical personnel puncture failure often, leads to the blood sampling time extension. In order to facilitate the nurse to puncture and take blood, the hand of the patient needs to be fixed, the wrist of the patient is exposed in the visual field of the medical staff, and the skin of the wrist of the patient is tightened. Prior art CN210158602U discloses an intelligent venous blood sampling pad for medical examination, including blood sampling pad body, base rubber slipmat, unused blood sampling pad strorage device, blood sampling pad recovery unit, the soft material supporting pad of U-shaped and arm tightening means, this utility model can satisfy the requirement that one person padded, and the surface cortex protection pad of the soft material supporting pad of U-shaped can be dismantled cleaning and disinfecting, avoids disease cross infection. The arm tightening means of blood sampling pad top has replaced the pressure arteries and veins area, can cramp patient's arm automatically, can also heat blood sampling pad in the time of the cold day to reduce patient's discomfort, reduce the blood sampling degree of difficulty.

The prior art CN204260835U discloses a safe convenient blood sampling pad, including the base, the front end of base is provided with electronic paper feed device, is provided with one-piece formula filler cloth in the electronic paper feed device, and the below of one-piece formula filler cloth sets up sealed disinfection box, and the rear end inflatable elbow rest of base, the both sides of elbow rest set up the area of pasting. The device is used for automatically replacing the cushion towel through the paper feeding device when in use, so that the clean cushion towel can be automatically replaced after one blood drawing is finished, and cross infection is avoided. The two prior arts are both improved from the perspective of avoiding cross infection, but neglect and in the using process, the volume of the blood sampling pad cannot be changed, and the storage and the movement are inconvenient; the problems that the index in the blood sample changes and the normal diagnosis is influenced by the time spent on blood sampling of the patient and the time after the tourniquet is pricked are also ignored.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor has studied a lot of documents and patents when making the present invention, but the space is not limited to the details and contents listed in the above, however, the present invention is by no means free of the features of the prior art, but the present invention has been provided with all the features of the prior art, and the applicant reserves the right to increase the related prior art in the background.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides an arterial blood collection hand fixing device which at least comprises a pad for raising a hand, wherein a finger end fixing component is arranged at the first end part of the pad in a manner that the finger end of a user can be fixed to tighten the skin of the wrist. The finger tip fixing assembly comprises a ball body and a finger fixing assembly for restraining a finger of a user from changing a posture of the finger based on movement of the ball body. The ball body and the finger fixing component are movably connected through a sliding block which is arranged on the finger fixing component and matched with each other and a sliding groove which is arranged on the ball body.

According to a preferred embodiment, the finger fixing assembly further comprises a finger limiting part arranged at one end, far away from the sliding groove, of the sliding block, a finger placing cavity used for containing fingers is arranged in the hollow part of the inner side of the finger limiting part, and an air bag is arranged in the circumferential direction of the finger placing cavity in a mode that the size of the hollow volume can be adjusted.

According to a preferred embodiment, the ball body is connected with a cylinder assembly at a side far away from the finger fixing assembly in a manner capable of generating a posture change driving action for the patient finger.

According to a preferred embodiment, the side of the mat remote from the user is provided with a stretching assembly in a manner that facilitates storage, said stretching assembly comprising at least a primary bar for providing support and a secondary bar for connecting adjacent primary bars.

According to a preferred embodiment, the secondary levers comprise at least a first secondary lever and a second secondary lever, which cross each other and are articulated by a pivot in such a way as to be able to vary the distance between adjacent primary levers.

According to a preferred embodiment, the mat is connected to the main pole on the side facing away from the user in such a way that it can be stretched and retracted with the stretching structure.

According to a preferred embodiment, the air cells on each of the finger restrictions are connected by a gas supply tube in a manner that facilitates simultaneous inflation.

According to a preferred embodiment, the distance between the sliding grooves on the ball at the first end is smaller than the distance between the sliding grooves at the second end.

According to a preferred embodiment, the finger end fixing assembly is connected with the stretching assembly through a support frame and is arranged on one side of the cushion far away from the stretching assembly.

According to a preferred embodiment, the support frame at least comprises a pair of first support rods which are parallel to each other and a second support rod which is connected with the pair of first support rods respectively, one ends of the pair of first support rods, which are far away from the second support rod, are connected with the stretching assembly to form a passing space, and the finger end fixing assembly is arranged in the middle of the second support rod in a manner that the palm of a user is allowed to pass through the passing space and is connected with the finger end fixing assembly.

The beneficial technical effect of this application lies in:

firstly, the accuracy of needle insertion is improved. The hand fixing is carried out by assisting the unconscious patient so as to fixedly expose the wrist of the patient in the visual field of the medical staff, so that the medical staff does not need to spend effort to fix the hand of the patient any more, can vacate the two hands for other operations, and does not worry about the influence of the movement of the patient on the accuracy rate of the needle insertion during the needle insertion; so that the medical staff can finish the blood sampling operation within one minute after the tourniquet is pricked, and the interference of the tourniquet and the fist to the accuracy of the index in the collected blood sample is reduced.

The second, pass through the spout with patient's finger end and spheroid through finger end fixed subassembly and connect at the instrument, can relax patient's hand on the finger end fixed connection to fixed subassembly, drive the relative spheroid of finger end fixed subassembly through spheroidal removal and remove to open patient's finger gradually along with removing, and tighten the skin of wrist, so that medical personnel accurately advances the needle.

Thirdly, through tensile subassembly, by the support effect of mobile jib provide to the arm, the angle change by the vice pole of crossing adapts to the distance change between the mobile jib for the device can be elongated to certain length when using as required, contracts when not using and reduces the volume, so that accomodate.

Drawings

FIG. 1 is a simplified overall structural side view of the hand immobilization device of the present invention;

FIG. 2 is a simplified overall structural elevation view of the finger fixing assembly of the present invention;

figure 3 is a simplified structural schematic of the stretching assembly of the present invention.

List of reference numerals

100: a finger tip fixing assembly; 110: a finger fixing assembly; 111: a finger restricting section; 112: a finger placement chamber; 113: a slider; 114: an air bag; 120: a cylinder; 121: a gas chamber; 122: a piston rod; 200: a stretching assembly; 210: a main rod; 220: an auxiliary rod; 221: a pivot; 300: a support frame; 310: a first support bar; 320: a second support bar; 400: a cushion; 130: a sphere.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

When a patient in a respiratory department is admitted, the patient needs to perform rapid arterial blood sampling to detect the blood oxygen concentration and determine the current state of the patient, but the wrist is in a slightly inward bending state in a natural state, and the patient may have various symptoms without matching with the blood sampling, so that the blood sampling time is prolonged, and the mental stress of medical staff and the danger of the patient are increased. The condition of coma patient is special, the circulation weakens, the superficial blood vessel sinks, the elasticity and the beat that the skin surface touched the blood vessel weaken, and the wrist is in the state of buckling a little, the blood vessel of carrying out the artery blood sampling is difficult for distinguishing, be difficult to the needle of inserting, consequently need fix patient's finger end, and tighten wrist skin, fully expose wrist artery in medical personnel's the field of vision, so that medical personnel distinguish the blood vessel position, the accurate needle of inserting, improve blood sampling efficiency, diagnose the patient's state of an illness fast, practice thrift valuable rescue time.

The present embodiment provides an arterial blood collection hand fixation device comprising at least a pad 400 and a finger tip fixation assembly 100. The pad 400 is used to elevate the hand for venous blood return. The finger end fixing assemblies 100 are provided at the first end of the mat 400. The first end is the end proximate the palm of the patient. The finger end fixing component 100 is used for fixing the finger end of a patient, prevents the hand of the patient from moving in the blood sampling process, and is used for stretching the finger end of the patient to tighten the wrist skin of the patient, so that a nurse can accurately find a blood vessel conveniently, and the needle inserting accuracy is improved. Avoid the repeated needle insertion to aggravate the tension of patients and medical care personnel, and improve the accuracy of blood sampling and the accuracy of blood characterization. The finger tip holding assembly 100 includes a ball 130 and a finger holding assembly 110. The ball 130 serves to restrain the palm position of the user so that the wrist of the patient is maintained at a posture and angle that exposes the arterial blood vessels. The finger fixing assembly 110 is used to connect the patient's fingers with the ball 130 so that the movement of the ball moves the patient's fingers to tighten the wrist skin. The ball 130 and the finger fixing component 110 are movably connected through the sliding block 113 and the sliding groove which are engaged with each other, so that the finger fixing component 110 can move relative to the ball 130. Preferably, the sliding block 113 is disposed on the finger fixing member 110, and the sliding groove is disposed on the ball 130. Preferably, five sliding grooves are formed in the ball 130 at positions corresponding to five fingers, and the relative positions of the five sliding grooves correspond to suitable opening angles of the five fingers when the ball 130 is held by the five fingers. When in use, the user fixes the fingers in the finger fixing component 110 respectively, the sliding block on the finger fixing component 110 moves relative to the sliding groove on the ball 130 along with the movement of the ball 130 to adapt to the posture change of the fingers, and finally the fingers move to the state that the user is opened, and the palm of the user has a certain angle relative to the forearm of the user, so that the skin of the wrist of the user is tightened, and the blood vessel is fully exposed.

According to a preferred embodiment, the finger fixing assembly 110 further comprises a finger restraint 111. The finger restraint 111 is configured to receive a user's finger and secure the user's finger to the finger attachment assembly 110. The finger restricting portion 111 is disposed at an end of the slider 113 away from the slide slot, so that fingers can be held after being fixed to the finger restricting portion 111. The finger restraint 111 includes a finger placement cavity 112 and an air bladder 114. An annular finger placing cavity 112 for accommodating a finger is formed in the finger limiting part 111 in a hollow manner, and an annular air bag 114 is circumferentially arranged on the inner side of the finger placing cavity 112. Through changing the inside gas filling volume of annular gasbag 114, can change the diameter size that the chamber 112 was placed to the finger to the patient that adapts to different finger thickness uses, guarantees that the device can adapt to different finger sizes, stably fixes different fingers. Preferably, the air cells 114 of each finger fixing assembly 110 are connected by the same air supply tube for easy and convenient operation when inflating. Preferably, the finger restriction portion 111 is attached to an end of the finger near the fingertip.

According to a preferred embodiment, the direction of the slot on the ball 130 is substantially the same as the finger angle of the user holding the ball 130. When the user holds the ball 130, the finger fixing element 110 is located at the first end of the sliding chute, and the palm of the user contacts with the second end of the sliding chute. Preferably, the spacing of the runners is less at the first end than the spacing of the runners at the second end. The slots are slightly radially spaced from the first end to the second end of the sphere 130 to allow the user's palm to maintain different hand positions at different positions relative to the sphere 130.

According to a preferred embodiment, a cylinder 120 is attached to the ball 130 on a side remote from the finger hold assembly 110. Drive spheroid 130 concertina movement through cylinder 120 and can drive the removal of patient's finger tip to be in fixing patient's finger to finger restriction portion 111 under the state of nature at unconscious patient's finger, and control the cylinder and remove towards the direction of keeping away from the patient after fixed, make patient's finger stretched fixedly, and promote patient's palm to be certain angle with the forearm, so that the at utmost exposes patient's wrist artery and tightens patient's wrist skin. The cylinder 120 assembly includes a sealed gas chamber 121, a piston and a piston rod 122. The piston rod 122 is connected to a side of the sphere 130 away from the finger fixing component 110, and is set to move in the same direction as the wrist of the user, so that the piston rod 122 extends out to drive the sphere 130 to move towards the fingertip of the user, at this time, the finger fixing component 110 moves along the sliding slot of the sphere 130 to adapt to the position change of the sphere 130, when the piston rod 122 extends to the longest position, the fingers are in the first posture, and each finger is kept in an open state under the drive of the finger fixing component 110; when the piston rod 122 retracts to drive the ball 130 to move towards the wrist of the user, the wrist of the user keeps fixed, each finger is bent due to the pulling of the ball 130, the distance between the fingers and the inherent length of the skeleton move along the sliding groove on the ball 130 along with the driving of the ball 130 after bending to keep the natural micro-bending fist state again, and the fingers are in the second posture. When the finger tip of an unconscious patient is fixed, the cylinder 120 is controlled to contract the piston rod 122, the fingers are kept at the second posture and fixed on the finger fixing assemblies 110 respectively, and after the fingers are fixed, the cylinder 120 is controlled to extend the piston rod 122 to drive the fingers of the user to open to the first posture. Preferably, the gas chamber 121 of the cylinder 120 is connected with a micro pneumatic pump or an external air pump to control the amount of gas in the gas chamber 121 and control the extension and retraction of the piston rod 122. The micro-pneumatic pump may be, for example, a pneumatic pump of the type EDZP 02-D3.

According to a preferred embodiment, the side of the mat 400 facing away from the user is provided with a stretching structure to accommodate the mat 400 when not in use. The stretching structure includes at least a primary rod 210 and a secondary rod 220. Several main bars 210 are arranged side by side with each other to provide support for the elbow of the user. Adjacent main poles 210 arranged in parallel are connected by a plurality of sub poles 220. Preferably, the sub-lever 220 includes at least a first sub-lever 220 and a second sub-lever 220, and the first sub-lever 220 and the second sub-lever 220 are cross-connected to each other at a middle portion. The first and second

secondary levers

220, 220 are movably connected by a pivot 221 so that the first and second

secondary levers

220, 220 can rotate relative to each other. The two ends of the first and

second sub-bars

220 and 220 are respectively movably connected with the adjacent main bars 210, so that when the distance between the adjacent main bars 210 is increased or decreased, the first and

second sub-bars

220 and 220 can adapt to the distance change between the main bars 210 by adjusting the included angle between each other, so that the adjacent main bars 210 can be always kept connected through the sub-bars 220. By adopting the arrangement mode, the artery blood sampling hand fixing device of the embodiment can be stretched and retracted, can be used after being stretched when needed, and can be retracted for storage when not needed.

According to a preferred embodiment, the side of the mat 400 adjacent to the user is provided with a flexible layer, one end of the flexible layer adjacent to the tensile structure is connected to the primary rods 210, and the length of the flexible layer between adjacent primary rods 210 is equal to the distance between adjacent primary rods 210 when the fixing assembly is extended to the longest. By such an arrangement, when the distance between the main rods 210 is adjusted, the flexible layer can be stretched along with the stretching of the device and can be contracted along with the contraction of the device so as to be accommodated. Preferably, the side of the flexible layer remote from the stretching structure is provided with a connecting structure for connecting the disposable pad, so that the disposable pad can be replaced when in use. Preferably, the connection structure may be, for example, a hook and loop fastener.

According to a preferred embodiment, the finger tip fixing mechanism is connected to the stretching structure through a support frame 300 and is disposed at a side portion of the mat 400 away from the stretching structure. The support frame 300, for example, includes at least two first support rods 310 juxtaposed to each other and at least two second support rods 320 connected to the two first support rods 310, respectively. An end of the first support bar 310 facing away from the second support bar 320 is connected to the stretching structure. Preferably, an end of the first support bar 310 facing away from the second support bar 320 is connected to the main bar 210. Preferably, two first support poles 310 are connected to both ends of one main pole 210, respectively, to span above the mat 400. The cushion 400, the first support bar 310 and the second support bar 320 together constitute a passing space through which the arms pass. Preferably, the finger tip fixing mechanism is provided at the middle of the second support bar 320 and is parallel to the elbow direction of the user. Preferably, the finger tip fixing means is provided at a position close to the palm of the user's hand so as to place the elbow of the user on the mat 400, the palm of the hand passes through the passing space to be connected to the finger restricting portion 111 and exposes the artery to the outside for the medical staff to take blood.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the utility model. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the utility model is defined by the claims and their equivalents.

Claims

1. A hand fixing device at least comprises a pad (400) for raising a hand, a finger end fixing component (100) is arranged at a first end part of the pad (400) according to a mode of fixing the finger end of a user to stretch wrist skin,

it is characterized in that the preparation method is characterized in that,

the finger tip holding assembly (100) comprises a ball (130) and a finger holding assembly (110) for restraining a user's finger from changing a finger's posture based on movement of the ball (130),

the sphere (130) and the finger fixing component (110) are movably connected through a sliding block (113) which is arranged on the finger fixing component (110) and matched with each other and a sliding groove arranged on the sphere (130).

2. The hand fixing device of claim 1, wherein the finger fixing component (110) further comprises a finger limiting part (111) arranged at one end of the sliding block (113) far away from the sliding groove, a finger placing cavity (112) used for accommodating fingers is arranged in the finger limiting part (111) in a hollow mode, and an air bag (114) is arranged in the finger placing cavity (112) in the circumferential direction in a mode that the size of the hollow volume can be adjusted.

3. A hand fixation device as claimed in claim 2, wherein the sphere (130) is connected to the cylinder (120) on the side remote from the finger fixation assembly (110) in such a way as to generate a movement of the patient's finger.

4. A hand fixation device as claimed in claim 3, wherein the side of the pad (400) remote from the user is provided with a stretching assembly (200) in a manner that allows easy storage, the stretching assembly (200) comprising at least a primary bar (210) for providing a supporting effect and a secondary bar (220) for connecting adjacent primary bars (210).

5. A hand fixation device as claimed in claim 4, wherein the secondary bar (220) comprises at least a first secondary bar (220) and a second secondary bar (220), the first secondary bar (220) and the second secondary bar (220) crossing each other and being movably connected by a pivot (221) in such a manner that an included angle can be changed to change a distance between the adjacent primary bars (210).

6. A hand fixation device as claimed in claim 5, wherein the side of the pad (400) facing away from the user is connected to the spine (210) in such a way that it can be extended and retracted with the stretching mechanism.

7. A hand immobilization device as claimed in claim 6 wherein the air cells (114) on each finger restraint (111) are connected by a gas supply tube in a manner to facilitate inflation.

8. A hand fixation device according to claim 7, wherein the distance between the sliding grooves on the ball (130) at the first end is smaller than the distance between the sliding grooves at the second end.

9. A hand fixation device as claimed in claim 8, wherein the finger tip fixation unit (100) is connected to the stretching unit (200) by a support frame (300) and is arranged on the side of the pad (400) remote from the stretching unit (200).

10. The hand fixing device of claim 9, wherein the support frame (300) comprises at least a pair of first support rods (310) juxtaposed to each other and a second support rod (320) connected to the pair of first support rods (310), respectively, one ends of the pair of first support rods (310) facing away from the second support rod (320) are connected to the stretching assembly (200) to form a passing space, and the finger end fixing assembly (100) is disposed at the middle of the second support rod (320) in a manner allowing the palm of the user to pass through the passing space and be connected to the finger end fixing assembly (100).