Pulse pressing type blood drawing device for blood disease patient

Abstract

The invention provides a pulse pressing type blood drawing device for a blood disease patient, and belongs to the technical field of medical instruments. Comprising a supporting base, a limiting groove is formed in the outer wall of the top of the supporting base, a heating pad is installed on the inner wall of the limiting groove, a first C-shaped buckle is fixedly connected to the inner wall of the top of the supporting base, sliding clamping grooves are formed in the outer walls of the two sides of the supporting base correspondingly, and a plurality of clamping teeth are fixedly connected to the inner walls of the sliding clamping grooves; clamping columns are symmetrically and fixedly connected to the outer walls of the two sides of the supporting base; the pulse pressing assembly is used for conducting blood sampling after vein blood is promoted to be full and appear, the rubber air bag can be inflated by treading the foot pump through the pulse pressing assembly, the vein of the arm of a patient is pressed, the blood in the vein is more full, and medical staff can conveniently find the proper vein to conduct puncture; by means of the arrangement, it can be avoided that due to the fact that medical staff frequently stoop down or stretch arms and are limited by heavy clothes on the body, the fatigue feeling is increased.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a pulse pressure blood drawing device for patients with blood diseases. Background Art

[0002] Blood diseases are a type of disease that originates in the hematopoietic system or primarily affects the hematopoietic system. Although many other systemic diseases can also cause changes in the blood, these can only be called hematological manifestations of systemic diseases. There are many causes of blood diseases, including chemical factors, physical factors, biological factors, genetic factors, and immune factors. The symptoms and signs of blood diseases are varied, and the most common ones include anemia, leukemia, etc.

[0003] At present, when drawing blood from anemic patients in winter, medical staff wear heavy coats and sit on a chair opposite to the medical table, which is relatively far away from the patient. When drawing blood, they need to first tighten a pulse cuff on the patient's arm vein, and then insert a blood collection needle into the patient's arm vein after disinfection to draw blood. As medical staff frequently bend or stretch their arms and are restricted by heavy clothing, they feel more tired. Therefore, the present invention provides a pulse-type blood drawing device for patients with blood diseases to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a pulse compression blood drawing device for patients with blood diseases. By setting a pulse compression component, the setting of the pulse compression component can prompt blood drawing after the venous blood is filled. The rubber air bag can be inflated by stepping on a foot pump to achieve compression of the patient's arm veins, block the blood flow in the veins, make the veins more filled, and facilitate medical staff to find a suitable vein for puncture. Such a setting can prevent medical staff from increasing fatigue due to frequent bending or stretching of arms, and being restricted by heavy clothing.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A pulse pressure blood drawing device for patients with blood diseases, comprising a support base, a limiting groove is provided on the top outer wall of the support base, a heating pad is installed on the inner wall of the limiting groove, a first C-shaped buckle is fixedly connected to the top inner wall of the support base, sliding grooves are respectively provided on the outer walls of both sides of the support base, a plurality of teeth are fixedly connected to the inner walls of the sliding grooves, and clamping columns are symmetrically fixedly connected to the outer walls of both sides of the support base; a pulse pressure assembly, the pulse pressure belt assembly is used to promote blood collection after the venous blood filling is visible, and the pulse pressure assembly is connected to the support base.

[0007] Optionally, the compression assembly includes a first support pad clamped on the outer wall of the clamping column, and a first S-shaped elastic plate fixedly connected to the bottom inner wall of the support base, and a rubber pad is slidably connected to the outer wall of the first support pad.

[0008] Optionally, one end of the first S-shaped elastic plate is fixedly connected to a second support pad, one end of the second support plate is fixedly connected to a first C-shaped elastic plate, the other end of the second support plate is fixedly connected to three second C-shaped elastic plates, one end of the second C-shaped elastic plate is fixedly connected to a second C-shaped buckle, and two limiting elastic handles are symmetrically fixedly connected on both sides of the outer wall of the second support pad.

[0009] Optionally, a clamping ring is clamped on the second C-shaped buckle, the clamping ring is fixedly connected to an airbag seat, and a clamping groove is provided on the outer wall of the inner ring of the airbag seat.

[0010] Optionally, the slot sleeve is provided with a rubber airbag, and an air inlet pipe is installed on one side outer wall of the rubber airbag.

[0011] Optionally, four first frames are sleeved on the inner wall of the rubber airbag, second frames are symmetrically fixedly connected to the outer walls on both sides of the first frames, and clamping elastic plates are fixedly connected to the outer walls on both sides of the middle part of the first frames.

[0012] Optionally, one end of the second frame is fixedly connected to the third frame, two ends of the third frame are symmetrically fixedly connected to the second S-shaped elastic plate, and the other end of the second S-shaped elastic plate is fixedly connected to the fourth frame.

[0013] Optionally, the other end of the air intake pipe is fixedly connected to the first air duct, and the other end of the first air duct is fixedly connected to the foot pump.

[0014] Optionally, a second air duct is fixedly connected to the middle outer wall of the first air duct, and an air relief valve is fixedly connected to the other end of the second air duct. A plurality of first air vents are formed on the outer wall of the air relief valve.

[0015] Optionally, a third S-shaped elastic plate and a fourth S-shaped elastic plate are fixedly connected to the inner wall of the air release valve, the other ends of the third S-shaped elastic plate and the fourth S-shaped elastic plate are fixedly connected to a push button, and two second air vents are provided on the bottom outer wall of the push button.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, by setting up a pulse compression component, the setting of the pulse compression component can prompt blood drawing after the veins are full of blood. The rubber airbag can be inflated by stepping on the foot pump to achieve compression of the patient's arm veins, blocking the blood flow in the veins, making the veins fuller, and facilitating medical staff to find a suitable vein for puncture. Such a setting can prevent medical staff from increasing fatigue due to frequent bending or stretching of arms, and being restricted by heavy clothing.

[0018] By setting a first support pad and a rubber pad in the compression assembly, the sliding distance can be adjusted according to the length of the patient's arm so that the rubber pad can just be placed on the patient's wrist. The several segmented grooves on the rubber pad can better fit the contour of the patient's wrist, thereby improving the patient's comfort.

[0019] By setting a second support pad, a limiting elastic handle and a first S-shaped elastic plate in the compression assembly, when in use, due to the different heights and arm lengths of different patients, the limiting elastic handle can be controlled to slide to the appropriate latch teeth in the sliding slot of the support base to meet the needs of different patients. When adjusting, the limiting elastic handle is pushed outward from the latch teeth, and the "C"-shaped elastic plastic tube on the limiting elastic handle will deform along the bending direction, and the elasticity of the first S-shaped elastic plate will drive the second support pad to reset so that it can be readjusted according to the needs of the next patient. Such a setting can adapt to the needs of different patients by adjusting the inclination angle of the second support pad, thereby improving the comfort of patients.

[0020] By arranging the first skeleton, the third C-shaped elastic plate, the second skeleton and the snap-on elastic plate in the compression assembly, the rubber airbag can be pulled, and the inner wall of the airbag will squeeze the semicircular snap-on part on the snap-on elastic plate, causing the snap-on elastic plate to deform along the bending direction. At the same time, the third C-shaped elastic plate will also deform along the bending direction due to the force, which makes it possible to remove the four first skeletons from the card slot in turn. Afterwards, the rubber airbag that matches it can be easily removed. This arrangement allows the rubber airbag to be easily removed and cleaned if it is contaminated after multiple blood draws.

[0021] By setting a second S-shaped elastic plate and a fourth frame in the compression assembly, when the patient passes his arm through the rubber air cushion, if the arm is thicker, the second S-shaped elastic plate will be subjected to force and deform along the bending direction, cooperating with the fourth frame to adapt to the different thicknesses of the patient's arm. This setting can not only shape the rubber airbag, but also adapt to the arm sizes of different patients.

[0022] By arranging an air inlet pipe, a push button, a first vent, a third S-shaped elastic plate and a fourth S-shaped elastic plate in the pulse compression assembly, medical staff can inflate the rubber airbag by stepping on a foot pump. Since the gas enters the rubber airbag from the end with a smaller cross-sectional diameter of the air inlet pipe, the entry speed of the gas can be accelerated, causing the rubber airbag to expand rapidly, so that the arm fitting surface on the rubber airbag can better fit the patient's arm contour. After blood drawing is completed, the push button on the deflation valve can be pressed, and the gas can pass through the first vent, allowing the rubber airbag to quickly release the gas. Such a setting can improve the work efficiency of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0024] Figure 1 A schematic diagram of the three-dimensional structure of a pulse-type blood-drawing device for patients with blood diseases;

[0025] Figure 2 It is a schematic diagram of an enlarged three-dimensional structure of the support base, the first support pad and the second support pad;

[0026] Figure 3 It is a schematic diagram of an enlarged three-dimensional structure of the first supporting pad and the rubber pad;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the support base;

[0028] Figure 5 It is a schematic diagram of an enlarged three-dimensional structure of the cooperation of the second supporting pad, the first C-shaped elastic plate and the second S-shaped elastic plate;

[0029] Figure 6 It is an enlarged three-dimensional structural diagram of the airbag seat and the rubber airbag;

[0030] Figure 7 It is a schematic diagram of an enlarged cross-sectional three-dimensional structure of the airbag seat and the rubber airbag;

[0031] Figure 8 It is a schematic diagram of an enlarged half-section three-dimensional structure of the rubber airbag and the first frame;

[0032] Fig. 9 It is a schematic diagram of an enlarged three-dimensional structure of the first skeleton, the second skeleton, the third skeleton and the fourth skeleton;

[0033] Fig.10 for Fig. 9 The enlarged structural diagram at A in the middle;

[0034] Fig.11It is a schematic diagram of an enlarged three-dimensional structure of the first air guide pipe, the second air guide pipe and the air release valve;

[0035] Fig.12 It is a schematic diagram of an enlarged cross-sectional three-dimensional structure of the second air guide pipe and the air release valve.

[0036] Reference numerals:

[0037] 1. Support base; 101. Snap-on column; 102. Sliding slot; 103. First C-type snap-on; 104. Clip-on tooth; 105. Limiting slot; 106. Heating pad; 2. First support pad; 201. Rubber pad; 202. Sliding slot; 3. Second support pad; 301. First C-type elastic plate; 302. First S-type elastic plate; 303. Limiting elastic handle; 304. Second C-type elastic plate; 305. Second C-type snap-on; 4. Airbag seat; 401. Intake pipe; 402. Snap-on ring; 4 03, card slot; 5, first frame; 501, second frame; 502, card-connecting elastic plate; 503, third frame; 504, second S-shaped elastic plate; 505, fourth frame; 506, third C-shaped elastic plate; 6, rubber airbag; 601, arm fitting surface; 7, first air duct; 701, second air duct; 702, foot pump; 8, air release valve; 801, first air hole; 802, push button; 803, second air hole; 9, third S-shaped elastic plate; 901, fourth S-shaped elastic plate.

[0038] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0039] The following is a detailed description of a blood-disease patient's pulse-type blood-drawing device provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0040] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0041] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0042] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0043] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0044] like Figures 1 to 12As shown, an embodiment of the present invention provides a pulse pressure blood drawing device for patients with blood diseases, including a support base 1, a limiting groove 105 is provided on the top outer wall of the support base, a heating pad 106 is installed on the inner wall of the limiting groove 105, a first C-shaped buckle 103 is fixedly connected to the top inner wall of the support base 1, sliding grooves 102 are respectively provided on the outer walls of both sides of the support base 1, a plurality of teeth 104 are fixedly connected to the inner wall of the sliding groove 102, and clamping columns 101 are symmetrically fixedly connected to the outer walls of both sides of the support base 1; a pulse pressure component, a pulse pressure belt component is used to promote blood collection after the venous blood is filled, and the pulse pressure component is connected to the support base 1.

[0045] Specifically, the support base 1 as a whole is composed of four parts, wherein the bottom is a straight plate shape, the two sides are P-shaped straight plates, and the top is an arc-shaped plate, and they are all made of stainless steel. The limiting groove 105 is opened on the top outer wall of the support base 1, and the heating pad 106 is installed on the inner wall of the limiting groove 105. The limiting groove 105 is a rectangular parallelepiped with an arc, and the heating pad 106 is rectangular. The overall contour is adapted to the contour of the limiting groove 105, wherein the wires of the heating pad 106 pass through the round hole set on the inner wall of the limiting groove 105. Since the use of the heating pad 106 is disclosed as a prior art, it will not be repeated. The first C-type buckle 10 3 is fixedly connected to the inner wall at the top of the support base 1. The first C-shaped buckle 103 is a "C"-shaped plastic plate, which will deform along the bending direction after being subjected to force. The clamping column 101 is symmetrically fixedly connected to the outer walls of both sides of the support base 1 close to the top. The clamping column 101 is made of stainless steel, and is semi-cylindrical in shape as a whole, and has semi-spherical shapes at both ends. Two sliding slots 102 are respectively opened on the outer walls of both sides of the support base 1 away from the clamping column 101. The sliding slot 102 is cashew-shaped, and a plurality of clamping teeth 104 are fixedly connected to the inner wall of the side close to the clamping column 101, and the clamping teeth 104 are canine-shaped.

[0046] The present invention also provides a pulse compression component, which is used to promote blood collection after the vein is filled with blood. When performing venous puncture, the pulse compression component can not only block the venous blood flow, making the vein more filled and facilitating medical staff to find a suitable vein for puncture, but also avoid the medical staff from increasing fatigue due to frequent bending or stretching of arms, and being restricted by heavy clothing on their bodies, while also improving the patient's comfort during blood drawing.

[0047] like Figures 1 to 12As shown, the compression assembly includes a first support pad 2 clamped on the outer wall of the clamping column 101, and a first S-shaped elastic plate 302 fixedly connected to the bottom inner wall of the support base 1, a rubber pad 201 is slidably connected to the outer wall of the first support pad 2, one end of the first S-shaped elastic plate 302 is fixedly connected to the second support pad 3, one end of the second support pad 3 is fixedly connected to the first C-shaped elastic plate 301, the other end of the second support plate is fixedly connected to three second C-shaped elastic plates 304, one end of the second C-shaped elastic plate 304 is fixedly connected to the second C-shaped buckle 305, and two limiting elastic handles 303 are symmetrically fixedly connected on both sides of the outer wall of the second support pad 3.

[0048] Specifically, the first support pad 2 is clamped on the outer wall of the clamping column 101. The first support pad 2 is an arc-shaped plastic plate, and its overall contour is adapted to the outer wall contour of the top of the support base 1. Clamping parts that are convenient for clamping to the clamping column 101 are arranged on both sides of the first support pad 2. The inner wall contour of the clamping part is adapted to the outer wall contour of the clamping column 101, and the bottom end has a slight outward arc. During the clamping process, it is subjected to force and deforms along the bending direction, which is conducive to clamping the first support pad 2 to the clamping column 101. The rubber pad 201 is lens-shaped as a whole and is made of rubber. A number of segmented grooves are provided on the outer wall at the top of the rubber pad 201. Such a setting can adapt to the contour of the patient's wrist and improve the patient's comfort. Sliding parts are provided on both sides of the rubber pad 201. The contour of the sliding part is in the shape of a "convex" character as a whole. On the outer wall at one end of the top of the first support pad 2 away from the sliding clamping groove 102, a sliding groove 202 adapted to the contour of the sliding part of the rubber pad 201 is provided.

[0049] One end of the first elastic plate is fixedly connected to the bottom inner wall of the support base 1, and the whole is an "S"-shaped plastic plate, and the other end is fixedly connected to the outer wall of the second support pad 3, and the second support pad 3 is a semicircular arc-shaped plastic plate. The first C-shaped elastic plate 301 is fixedly connected to one end of the second support pad 3 close to the first support plate. The first C-shaped elastic plate 301 is in a "C" shape as a whole and is made of plastic. Three second C-shaped elastic plates 304 are fixedly connected to the other end of the second support pad 3, and the second elastic plates on both sides are distributed in an arc array. The second elastic plate in the middle is symmetrical, and its volume is only half of the second C-shaped elastic plate 304 in the middle. Both are "C" shaped plastic plates. The second C-shaped buckle 305 is fixedly connected to the other end of the second C-shaped elastic plate 304. The second C-shaped buckle 305 made of plastic material is in the shape of a "C" as a whole. It is made of plastic material. The two limiting elastic handles 303 are symmetrically fixedly connected on both sides of the outer wall of the second support pad 3. The limiting elastic handles 303 as a whole are composed of two parts: a "C" shaped elastic plastic tube and a plastic cylinder with an anti-slip groove.

[0050] When medical staff use this device, they need to first clamp the first support pad 2 on the clamping columns 101 on the outer walls of the two sides of the support base 1. At this time, the inner walls of the clamping parts set on both sides of the first support pad 2 will slide along the outer walls of the clamping columns 101 and deform along the bending direction until the inner walls of the first support pad 2 are completely in contact with the top outer wall of the support base 1. Then, the sliding parts on both sides of the rubber pad 201 are aligned and slide into the sliding slots 102 opened on the first support pad 2. The sliding distance can be adjusted according to the length of the patient's arm so that the rubber pad 201 can just be cushioned at the patient's wrist, and the several segmented grooves opened on the rubber pad 201 can better fit the contour of the patient's wrist, thereby improving the patient's comfort.

[0051] Due to the different heights and arm lengths of different patients, in order to adapt to the needs of different patients, the limiting elastic handle 303 can be controlled to slide in the sliding slot 102 opened on the support base 1, and slide to the appropriate latch tooth 104 according to the patient's needs. At this time, the first S-shaped elastic plate 302 will deform along the direction of its bending during the adjustment process. Whenever adjustment is needed, it is only necessary to push the limiting elastic handle 303 outward from the latch tooth 104, and the "C"-shaped elastic plastic tube on the limiting elastic handle 303 will deform along the direction of its bending, and cooperate with the elasticity of the first S-shaped elastic plate 302 itself to drive the second support pad 3 to reset, so that it can be readjusted according to the patient's needs.

[0052] Since the patient's anemia symptoms will cause an unbearable feeling of cold, stretching the arms in the already cold weather in winter will cause serious discomfort to the patient. At this time, the switch of the heating pad 106 can be turned on to transfer heat to the first support pad 2 to bring a touch of warmth to the patient during the blood drawing process, which has the effect of calming the patient's emotions. Such a setting can adapt to the different needs of different patients by adjusting the inclination angle of the second support pad 3 and the sliding distance of the rubber pad 201, thereby improving the patient's comfort.

[0053] In this embodiment, if Figures 1 to 12As shown, the second C-shaped buckle 305 is clamped with a clamping ring 402, the clamping ring 402 is fixedly connected to the airbag seat 4, a clamping groove 403 is provided on the outer wall of the inner ring of the airbag seat 4, the clamping groove 403 is sleeved with a rubber airbag 6, and an air inlet pipe 401 is installed on the outer wall of one side of the rubber airbag 6. Specifically, the clamping ring 402 is clamped on the second C-shaped buckle 305, the clamping ring 402 is a plastic ring and is fixedly connected to the outer wall of one end of the airbag seat 4, the airbag seat 4 is a hollow plastic cylinder, and the clamping groove 403 is provided on the inner ring of the airbag seat 4. On the outer wall, the overall outline of the card slot 403 is a quadrilateral and semicircular grooves are arranged on both sides of the inner wall of the card slot 403. The rubber airbag 6 is sleeved on the inner wall of the card slot 403. The rubber airbag 6 is made of rubber and an arm fitting surface 601 is arranged on the inner surface. The air inlet pipe 401 is installed on the outer wall of the rubber airbag 6 close to the support base 1. The air inlet pipe 401 is in the shape of a hollow truncated cone. The cross-sectional diameter of one end inserted into the rubber airbag 6 is smaller than the cross-sectional diameter of the other end. It is made of plastic, which can accelerate the airflow into the airbag.

[0054] Four first skeletons 5 are sleeved on the inner wall of the rubber airbag 6, and second skeletons 501 are symmetrically fixedly connected to the outer walls on both sides of the first skeleton 5, and third C-shaped elastic plates 506 are fixedly connected to the two ends of the first skeleton 5 respectively, and a snap-on elastic plate 502 is fixedly connected to the bottom middle outer wall of the second skeleton 501, one end of the second skeleton 501 is fixedly connected to the third skeleton 503, and second S-shaped elastic plates 504 are symmetrically fixedly connected to the two ends of the third skeleton 503, and the other end of the second S-shaped elastic plate 504 is fixedly connected to the fourth skeleton 505.

[0055] Specifically, the four first skeletons 5 are sleeved on the inner wall of the rubber airbag 6, the first skeleton 5 is an arc-shaped plastic plate and one end of the third C-type elastic plate 506 is fixedly connected at both ends, there are four third C-type elastic plates 506 in total, which are "C"-shaped plastic plates, the second skeleton 501 is symmetrically fixedly connected to the outer walls on both sides of the first skeleton 5, the second skeleton 501 is an arc-shaped plastic plate and a hollow part is set in the middle, and a snap-on elastic plate 502 is fixedly connected to the hollow part, and a semicircular snap-on part is set on the side of the snap-on elastic plate 502 away from the first skeleton 5, the semicircular snap-on part is a semicircular arc cylinder and the outer wall contour cooperates with the rubber airbag 6 and the semicircular groove set on the inner wall of the slot 403 The inner walls are adapted, and both sides of the third skeleton 503 are respectively fixedly connected to one end of the two second skeletons 501. The third skeleton 503 is an arc-shaped plastic plate. The two second S-shaped elastic plates 504 are symmetrically fixedly connected to the two ends of the third skeleton 503. The second S-shaped elastic plate 504 is in the shape of an "S" as a whole and is made of plastic. When subjected to force, the second S-shaped elastic plate 504 will deform along the bending direction. The two ends of the fourth skeleton 505 are respectively fixedly connected to one end of the second S-shaped elastic plate 504. The fourth skeleton 505 is an arc-shaped plastic plate. The fourth skeleton 505 cooperates with the second S-shaped elastic plate 504 to not only shape the rubber airbag 6, but also adapt to the arm thickness of different patients.

[0056] The other end of the air inlet pipe 401 is fixedly connected to the first air duct 7, the other end of the first air duct 7 is fixedly connected to the foot pump 702, the second air duct 701 is fixedly connected to the middle outer wall of the first air duct 7, the other end of the second air duct 701 is fixedly connected to the air release valve 8, a plurality of first air holes 801 are provided on the outer wall of the air release valve 8, a third S-shaped elastic plate 9 and a fourth S-shaped elastic plate 901 are fixedly connected to the inner wall of the air release valve 8, the other ends of the third elastic plate and the fourth elastic plate are fixedly connected to a push button 802, and two second air holes 803 are provided on the bottom outer wall of the push button 802.

[0057] Specifically, the first air duct 7 is fixedly connected to the end of the inlet pipe 401 with a larger cross-sectional diameter. The first air duct 7 is a rubber hollow round tube as a whole and a foot pump 702 is fixedly connected to the other end thereof. The foot pump 702 is disclosed in the prior art and is therefore not described in detail. The first air duct 7 passes through the interior of the support base 1 and is clamped on the inner wall of the first C-shaped buckle 103 mentioned above. The first C-shaped buckle 103 can position and constrain the first air duct 7 to prevent the first air duct 7 from being misplaced. The pressure affects the subsequent inflation or deflation of the rubber airbag 6. The second air guide tube 701 is fixedly connected to the middle outer wall of the first air guide tube 7. The second air guide tube 701 is a rubber hollow round tube and the other end thereof is fixedly connected to the outer wall of the deflation valve 8 near the bottom. A plurality of first vent holes 801 are distributed in a circumferential array and are opened on the outer wall of the deflation valve 8 near the top. The deflation valve 8 is in a hollow cylindrical shape as a whole and has a bottom seal at the bottom. The third S-shaped elastic plate 9 and the fourth S-shaped elastic plate 901 are The third S-shaped elastic plate 9 and the fourth S-shaped elastic plate 901 are both "S"-shaped plastic plates, and the middle part of the third S-shaped elastic plate 9 passes through the middle part of the fourth S-shaped elastic plate 901. The third elastic plate cooperates with the fourth elastic plate to form an "8" shape with a large top and a small bottom. One end of the third S-shaped elastic plate 9 and the fourth S-shaped elastic plate 901 are both fixedly connected to the bottom outer wall of the push button 802. The push button 802 is composed of a circular plate, a cylinder and The hemispherical shape is composed of three parts made of plastic. The outer wall of the circular plate part is symmetrically provided with second vent holes 803 on both sides. The second vent holes 803 are long grooves with an arc. After pressing the push button 802, the gas passes through the second vent hole 803 and then escapes from the first vent hole 801, thus completing the deflation of the rubber airbag 6. Subsequently, the push button 802 is pushed to reset under the action of the elasticity of the third S-shaped elastic plate 9 and the fourth S-shaped elastic plate 901. The operation is simple and quick.

[0058] During use, after the patient rolls up his arms, his bare arms pass through the rubber airbag 6. If the patient's arms are too short, the rolled-up sleeves will squeeze the airbag seat 4, causing the second C-shaped elastic plate 304 to deform. At this time, the position of the airbag seat 4 on the patient's arm can be adjusted by tightening and loosening the rolled-up sleeves. If the patient's arms are thicker, the second S-shaped elastic plate 504 will be deformed in the bending direction under force, and the fourth skeleton 505 can adapt to the thickness of the patient's arm. Then the medical staff inflates the rubber airbag 6 by stepping on the foot pump 702. Since the gas enters the rubber airbag 6 from the end with a smaller cross-sectional diameter of the air inlet pipe 401, the gas entry speed can be accelerated, causing the rubber airbag 6 to expand rapidly, so that the arm fitting surface 601 on the rubber airbag 6 can better fit the contour of the patient's arm, and pressurize the veins on the arm to promote disinfection and puncture blood drawing after the venous blood is filled.

[0059] After the blood drawing is completed, the pressing key 802 on the air release valve 8 can be pressed to deform the third S-shaped elastic plate 9 and the fourth S-shaped elastic plate 901 along the bending direction, wherein the circular plate on the pressing key 802 is displaced toward the bottom of the air release valve 8, so that the blocked first vent 801 is unblocked, and the gas passes through the second vent 803 and then out of the first vent 801, so that the rubber airbag 6 releases the gas, making it convenient for the patient to draw out his arm, completing the entire process of this blood drawing. After repeated rounds of blood drawing, the rubber airbag 6 is contaminated. By pulling the rubber airbag 6, the inner wall of the rubber airbag 6 will squeeze the semicircular clamping part set on the clamping elastic plate 502, causing the clamping elastic plate 502 to deform along the bending direction. At this time, the third C-shaped elastic plate 506 will also be deformed along the bending direction under force. It is convenient to take out the four first skeletons 5 from the slots 403 in turn, and then the rubber airbag 6 matched therewith can be taken out and sent to the cleaning pool to clean the dirt. During installation, the outer wall of the outer ring of the rubber airbag 6 needs to be aligned with the slot 403 of the airbag seat 4, so that the third C-shaped elastic plate 506 is forced to deform along the bending direction, so that the outer wall of the outer ring of the rubber air cushion is inserted into the inner wall of the inner ring of the airbag seat 4, and then the inner wall of the inner ring of the rubber airbag 6 is directly pressed to force the snap-on elastic plate 502 to slide on the inner wall of the slot 403, and the force is deformed along the bending direction until the snap-on part on the snap-on elastic plate 502 slides to the semicircular groove of the slot 403, and the installation is completed. The above structural setting can not only shape the rubber airbag 6, but also adapt to the arm thickness of different patients, and at the same time, it can also facilitate the installation and removal of the rubber airbag 6.

[0060] The workflow of the technical solution of the present invention is as follows:

[0061] When in use, it is necessary to first clamp the first support pad 2 on the clamping columns 101 on the outer walls of the two sides of the support base 1. At this time, the inner walls of the clamping parts set on both sides of the first support pad 2 will slide along the outer walls of the clamping columns 101 and deform along the bending direction until the inner walls of the first support pad 2 are completely in contact with the top outer wall of the support base 1. Then, the sliding parts on both sides of the rubber pad 201 are aligned and slide into the sliding clamping groove 102 opened on the first support pad 2. The sliding distance can be adjusted according to the length of the patient's arm so that the rubber pad 201 can just be cushioned at the patient's wrist. The several segmented grooves opened on the rubber pad 201 can better fit the contour of the patient's wrist, thereby improving the patient's comfort due to the different heights and arm lengths of different patients.

[0062] In order to adapt to the needs of different patients, the limiting elastic handle 303 can be controlled to slide in the sliding groove 102 opened on the support base 1, and slide to the appropriate tooth 104 according to the patient's needs. At this time, the first S-shaped elastic plate 302 will be deformed along the bending direction during the adjustment process. Whenever adjustment is needed, it is only necessary to push the limiting elastic handle 303 outward from the tooth 104, and the "C"-shaped elastic plastic tube on the limiting elastic handle 303 will be deformed along the bending direction, and the elasticity of the first S-shaped elastic plate 302 itself will drive the second support pad 3 to reset, so that it can be readjusted according to the patient's needs. Due to the patient's anemia symptoms, an unbearable feeling of cold will occur. In the already cold weather in winter, stretching the arms will cause serious discomfort to the patient. At this time, the switch of the heating pad 106 can be turned on to transfer heat to the first support pad 2 to bring a touch of warmth to the patient during the blood drawing process, which has the effect of soothing the patient's emotions.

[0063] After the patient rolls up his arms, his bare arms pass through the rubber airbag 6. If the patient's arms are too short, the rolled-up sleeves will squeeze the airbag seat 4, causing the second elastic plate to deform. At this time, the position of the airbag seat 4 on the patient's arm can be adjusted by tightening and loosening the rolled-up sleeves. If the patient's arms are too thick, the second S-shaped elastic plate 504 will deform along the bending direction and cooperate with the fourth skeleton 505 to adapt to the thickness of the patient's arm. Then the medical staff will inflate the rubber airbag 6 by stepping on the foot pump 702. Since the gas enters the rubber airbag 6 from the end with a smaller cross-sectional diameter of the air inlet pipe 401, the gas entry speed can be accelerated, causing the rubber airbag 6 to expand rapidly, thereby making the rubber airbag 6 The arm fitting surface 601 on the bag 6 better fits the patient's arm contour and applies pressure to the veins on the arm. After the veins are filled with blood, disinfection and puncture are performed to draw blood. After the blood drawing is completed, the pressing key 802 on the air release valve 8 can be pressed to deform the third S-shaped elastic plate 9 and the fourth S-shaped elastic plate 901 along the bending direction, wherein the circular plate on the pressing key 802 is displaced toward the bottom of the air release valve 8, so that the blocked first vent 801 is unblocked, and the gas passes through the second vent 803 and then out of the first vent 801, thereby allowing the gas in the rubber airbag 6 to be released, making it convenient for the patient to draw out his arm and completing the entire process of this blood drawing.

[0064] After repeated blood drawing, the rubber airbag 6 is contaminated. The rubber airbag 6 can be pulled, and the inner wall of the rubber airbag 6 will squeeze the semicircular clamping part set on the clamping elastic plate 502, causing the clamping elastic plate 502 to deform along the bending direction. At this time, the third C-shaped elastic plate 506 will also be deformed along the bending direction under the force, so that the four first skeletons 5 can be taken out of the clamping slot 403 in turn, and the rubber airbag 6 matched with it can be taken out and sent to the cleaning pool to clean the dirt. The outer wall of the outer ring of the rubber airbag 6 is aligned with the slot 403 of the airbag seat 4, so that the third C-shaped elastic plate 506 is deformed along the bending direction under the force, so that the outer wall of the outer ring of the rubber air cushion is inserted into the inner wall of the inner ring of the airbag seat 4, and then the inner wall of the inner ring of the rubber airbag 6 is directly pressed, forcing the snap-on elastic plate 502 to slide on the inner wall of the slot 403, and the force is deformed along the bending direction until the snap-on parts on the four snap-on elastic plates 502 slide to the semicircular grooves of the slot 403 in turn, and the installation is completed.

[0065] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0066] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A pulse blood drawing device for patients with blood diseases, comprising a support base, characterized in that: A limiting groove is provided on the top outer wall of the support base, a heating pad is installed on the inner wall of the limiting groove, a first C-shaped buckle is fixedly connected to the top inner wall of the support base, sliding grooves are respectively provided on the outer walls on both sides of the support base, a plurality of locking teeth are fixedly connected to the inner walls of the sliding grooves, and clamping columns are symmetrically fixedly connected to the outer walls on both sides of the support base; The compression band assembly is used to draw blood after the venous blood filling is apparent, and the compression band assembly is connected to the support base.

2. The pulse blood drawing device for patients with blood diseases according to claim 1, characterized in that: The compression assembly includes a first support pad clamped on the outer wall of the clamping column, and a first S-shaped elastic plate fixedly connected to the bottom inner wall of the support base, and a rubber pad is slidably connected to the outer wall of the support pad.

3. The pulse blood drawing device for patients with blood diseases according to claim 2, characterized in that: One end of the first S-shaped elastic plate is fixedly connected to the second support pad, one end of the second support plate is fixedly connected to the first C-shaped elastic plate, the other end of the second support plate is fixedly connected to three second C-shaped elastic plates, one end of the second C-shaped elastic plate is fixedly connected to the second C-shaped buckle, and two limiting elastic handles are symmetrically fixedly connected on both sides of the outer wall of the second support pad.

4. The pulse blood drawing device for patients with blood diseases according to claim 3, characterized in that: A clamping ring is clamped on the second C-shaped clamp, and the clamping ring is fixedly connected to an airbag seat. A clamping groove is provided on the outer wall of the inner circle of the airbag seat.

5. The pulse blood drawing device for patients with blood diseases according to claim 4, characterized in that: The slot is sleeved with a rubber airbag, and an air inlet pipe is mounted on an outer wall of one side of the rubber airbag.

6. The pulse blood drawing device for patients with blood diseases according to claim 5, characterized in that: Four first frames are sleeved on the inner wall of the rubber airbag, second frames are symmetrically fixedly connected to the outer walls on both sides of the first frame, and clamping elastic plates are fixedly connected to the outer walls on both sides of the middle part of the first frame.

7. The pulse blood drawing device for patients with blood diseases according to claim 6, characterized in that: One end of the second frame is fixedly connected to the third frame, two ends of the third frame are symmetrically fixedly connected to the second S-shaped elastic plate, and the other end of the second S-shaped elastic plate is fixedly connected to the fourth frame.

8. The pulse blood drawing device for patients with blood diseases according to claim 5, characterized in that: The other end of the air intake pipe is fixedly connected to the first air guide pipe, and the other end of the first air guide pipe is fixedly connected to the foot pump.

9. The pulse blood drawing device for patients with blood diseases according to claim 8, characterized in that: A second air guide pipe is fixedly connected to the middle outer wall of the first air guide pipe, and an air relief valve is fixedly connected to the other end of the second air guide pipe. A plurality of first air vents are formed on the outer wall of the air relief valve.

10. The pulse blood drawing device for patients with blood diseases according to claim 9, characterized in that: A third S-shaped elastic plate and a fourth S-shaped elastic plate are fixedly connected to the inner wall of the air release valve, and a push button is fixedly connected to the other end of the third S-shaped elastic plate and the fourth S-shaped elastic plate, and two second air holes are opened on the bottom outer wall of the push button.

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