Blood sampling device capable of ensuring use safety

Abstract

The utility model provides a blood sampling device capable of ensuring use safety, which belongs to the technical field of medical instruments, aims to solve the problems that the replacement efficiency of non-woven fabrics is influenced and the workload of medical staff is increased, and comprises a positioning support, and a bearing frame is arranged above the positioning support in an up-and-down sliding manner; the two clamping supports are hinged to the left side and the right side of the upper end of the positioning support correspondingly. The bottom of the clamping support is fixedly connected with a transmission connecting shaft. The transmission connecting shaft is hinged with the positioning support; the clamping auxiliary mechanism is arranged between the bearing frame and the transmission connecting shaft; the two winding fulcrum shafts are rotationally arranged at the front end and the rear end of the positioning support correspondingly. The cloth changing auxiliary mechanism is arranged between the winding fulcrum shaft and the transmission connecting shaft; automatic laying and replacement of the non-woven fabric at the upper end of the bearing frame are achieved, the replacement efficiency of the non-woven fabric is improved, and the operation steps of medical staff during blood collection of a patient are simplified.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, more specifically, it relates to a blood taking device capable of ensuring safe use. BACKGROUND

[0002] When blood is collected from a human body, in order to avoid unnecessary safety hazards caused by the movement of the upper limbs of the patient during blood taking, the upper limbs are usually positioned by a limiting support, and then a needle tube is used to collect blood from the patient. In the actual application process of the limiting support, in order to avoid the risk of cross infection, medical non-woven fabric is usually laid on the upper end of the limiting support.

[0003] Based on the above, in the process of using medical non-woven fabric for sterile protection during blood collection, after blood taking is completed, the medical staff need to collect the non-woven fabric and then lay new non-woven fabric on the upper end of the limiting support in order to collect blood from the next patient. This not only affects the replacement efficiency of the non-woven fabric, increases the work burden of the medical staff, but also affects the use effect of the limiting support in the actual application process. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problems, the utility model provides a blood taking device capable of ensuring safe use, so as to solve the problem that, in the process of using medical non-woven fabric for sterile protection during blood collection, after blood taking is completed, the medical staff need to collect the non-woven fabric and then lay new non-woven fabric on the upper end of the limiting support in order to collect blood from the next patient, which not only affects the replacement efficiency of the non-woven fabric, increases the work burden of the medical staff, but also affects the use effect of the limiting support in the actual application process.

[0005] The purpose and effect of the blood taking device capable of ensuring safe use are achieved by the following specific technical means.

[0006] The application discloses a blood taking device which can ensure safety, comprising a positioning support, a bearing frame, clamping supports, a clamping auxiliary mechanism, winding shafts and a cloth changing auxiliary mechanism, the bearing frame is arranged above the positioning support in a sliding mode, and the bearing frame is in an arc-shaped frame structure; the clamping supports are arranged on the left and right sides of the upper end of the positioning support in a hinged mode; the bottom of the clamping support is fixedly connected with a transmission connecting shaft; the transmission connecting shaft is connected with the positioning support in a hinged mode; the clamping auxiliary mechanism is arranged between the bearing frame and the transmission connecting shaft; the winding shafts are arranged at the front and rear ends of the positioning support in a rotating mode; the cloth changing auxiliary mechanism is arranged between the winding shafts and the transmission connecting shaft; the cloth changing auxiliary mechanism comprises inner ratchets, the inner ratchets are arranged outside the winding shafts in a perpendicular rotating mode, and the inner ratchets are arranged in a diagonal mode.

[0007] Further, the clamping auxiliary mechanism comprises drive racks and drive auxiliary shafts, the drive racks are fixedly connected with the front and rear sides of the bottom end face of the bearing frame, the drive auxiliary shafts are arranged outside the drive racks in a rotating mode, and the positions of the drive auxiliary shafts are arranged in a diagonal mode; the outer end of the drive auxiliary shaft is coaxially fixedly connected with a drive gear.

[0008] Further, the drive gear is fixedly connected with the positioning support through a spiral elastic piece; the drive auxiliary shafts on the same side are connected with the transmission connecting shaft through a pulley transmission assembly.

[0009] Further, the inner side end face of the clamping support is vertically slidably provided with a positioning auxiliary frame; the outer end face of the positioning auxiliary frame is fixedly connected with a resistance increasing frame; a plurality of elastic extrusion pieces are fixedly connected between the resistance increasing frames on the same side and the clamping support.

[0010] Further, the inner side of the winding shaft at the rear end is provided with a positioning through groove; the outer side of the winding shaft at the front end is wound with a non-woven fabric; and the tail end of the non-woven fabric is fixedly connected with a positioning support.

[0011] Further, the cloth changing auxiliary mechanism further comprises drive pawls and driving bevel gears, the drive pawls are arranged inside the inner ratchets, the drive pawls on the same side are connected with the transmission connecting shaft through an elastic reset piece in a hinged mode, the driving bevel gears are fixedly connected with the outer end faces of the inner ratchets, the outer end of the driving bevel gear is vertically rotatably provided with a driven bevel gear, and the driven bevel gears on the same side are engaged with the driving bevel gears.

[0012] Further, the driven bevel gear outer end is coaxially fixedly connected with a positioning support, the positioning support is a polygonal column structure; a polygonal positioning groove is formed on the positioning support at the aligned position of the inner side of the winding support shaft; an elastic guide frame is rotatably arranged at the outer end of the winding support shaft; and the elastic guide frame and the positioning support are elastically connected.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] The utility model discloses when using, when blood collection is carried out to the patient, the patient places the upper limbs in the bearing frame, utilizes the gravity force influence of the upper limbs of the patient to the clamping auxiliary mechanism automatic drive, makes the clamping support of both sides automatic overturn inboard, realizes the automatic clamping positioning of the upper limbs, guarantees the operation safety when taking blood to the patient, also improves the clamping positioning operation convenience degree of the upper limb of taking blood, further improves the use convenience of the device in practical application process.

[0015] The utility model discloses when using, when blood collection is carried out to the patient, the patient places the upper limbs in the bearing frame, utilizes the gravity force influence of the upper limbs of the patient to the clamping auxiliary mechanism automatic drive, makes the clamping support of both sides automatic overturn inboard, realizes the automatic clamping positioning of the upper limbs, guarantees the operation safety when taking blood to the patient, also improves the clamping positioning operation convenience degree of the upper limb of taking blood, further improves the use convenience of the device in practical application process. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole isometric structure schematic diagram of the utility model.

[0017] Figure 2 It is the bearing frame and positioning support mounting structure schematic diagram of the utility model.

[0018] Figure 3 It is the positioning auxiliary frame and clamping support split structure schematic diagram of the utility model.

[0019] Figure 4 It is the clamping auxiliary mechanism and clamping support mounting structure schematic diagram of the utility model.

[0020] Figure 5 It is the transmission connecting shaft and cloth changing auxiliary mechanism mounting structure schematic diagram of the utility model.

[0021] Figure 6 It is the driving bevel gear and inner ratchet split structure schematic diagram of the utility model.

[0022] In the drawing, the corresponding relationship of component name and drawing number is as follows:

[0023] 1, positioning support; 2, bearing frame; 3, clamping support; 301, positioning auxiliary frame; 302, resistance increasing frame; 303, elastic extrusion piece; 4, transmission connecting shaft; 401, drive rack; 402, drive auxiliary shaft; 403, drive gear; 404, spiral elastic piece; 405, pulley transmission assembly; 5, winding shaft; 501, positioning slot; 502, non-woven fabric; 6, inner ratchet; 601, drive pawl; 602, driving bevel gear; 603, driven bevel gear; 604, positioning support column; 605, elastic guide frame. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples.

[0025] Example one:

[0026] As shown in the accompanying Figure 1 to the accompanying Figure 4 As shown:

[0027] The utility model provides a can ensure safe blood taking device of use, including positioning support 1, bearing frame 2, clamping support 3, clamping auxiliary mechanism, winding shaft 5 and cloth replacement auxiliary mechanism, bearing frame 2 is set in the upper side of positioning support 1 and slides, and bearing frame 2 is arc frame shape structure;Clamping support 3 has two, and two clamping supports 3 are respectively hingedly set in the left and right sides of positioning support 1 upper end;The bottom of clamping support 3 is fixedly connected with transmission connecting shaft 4;Transmission connecting shaft 4 is hingedly connected between clamping support 3 and positioning support 1;Clamping auxiliary mechanism is set between bearing frame 2 and transmission connecting shaft 4;Winding shaft 5 has two, and two winding shafts 5 are respectively rotatably set in the front and rear ends of positioning support 1;Cloth replacement auxiliary mechanism is set between winding shaft 5 and transmission connecting shaft 4.

[0028] Among them, clamping auxiliary mechanism includes: drive rack 401 and drive auxiliary shaft 402, drive rack 401 has two, and two drive racks 401 are respectively fixedly connected in the front and rear sides of the bottom end face of bearing frame 2;Drive auxiliary shaft 402 has two, and two drive auxiliary shafts 402 are respectively rotatably set on the outer side of two drive racks 401, and the positions of two drive auxiliary shafts 402 are diagonally arranged;The outer end of drive auxiliary shaft 402 is coaxially fixedly connected with drive gear 403.

[0029] Among them, drive gear 403 is fixedly connected with spiral elastic piece 404 between clamping support 3 and positioning support 1;The same side of left and right drive auxiliary shaft 402 and transmission connecting shaft 4 are provided with pulley transmission assembly 405.

[0030] The inner side end surface of the clamping support 3 is vertically slidably provided with a positioning auxiliary frame 301; the outer end surface of the positioning auxiliary frame 301 is fixedly connected with a resistance increasing frame 302; a plurality of elastic extrusion members 303 are fixedly connected between the resistance increasing frames 302 on the same side and the clamping support 3.

[0031] The inner side of the rear end winding support shaft 5 is provided with a positioning through slot 501; the outer side of the front end winding support shaft 5 is wound with a non-woven fabric 502; and the non-woven fabric 502 is fixedly connected with a positioning strip at the end.

[0032] The specific use mode and effect of the embodiment are as follows:

[0033] In the initial use, the non-woven fabric 502 is pulled to insert the positioning strip into the inner side of the positioning through slot 501, so that the end of the non-woven fabric 502 is positioned in the rear end winding support shaft 5, and the non-woven fabric 502 is laid on the upper end of the clamping support 3; when blood collection is performed on the patient, the upper limbs of the patient are placed on the bearing frame 2, the bearing frame 2 is driven to slide downward due to the gravity of the upper limbs, in the process of sliding downward, the two driving racks 401 drive the two driving gears 403 and the driving auxiliary shaft 402 to relatively rotate, in the process of rotating the driving auxiliary shaft 402, the belt wheel transmission assembly 405 drives the transmission connecting shaft 4 and the clamping support 3 to synchronously turn inward, after the two clamping supports 3 turn inward, the elastic extrusion members 303 extrude the positioning auxiliary frame 301, so that the upper limbs of the patient are clamped and positioned on the two sides, and after blood collection is completed, the upper limbs of the patient are separated from the bearing frame 2, the vortex elastic member 404 automatically resets the bearing frame 2 to slide upward.

[0034] Embodiment two:

[0035] As shown in the accompanying drawings: Figure 3 to the accompanying drawings: Figure 6 As shown:

[0036] On the basis of the embodiment one, the cloth changing auxiliary mechanism comprises: two internal ratchets 6, the two internal ratchets 6 are vertically arranged on the outer sides of the two winding support shafts 5; the two internal ratchets 6 are diagonally arranged, and the positions of the internal ratchets 6 on the same side and the transmission connecting shaft 4 are opposite.

[0037] The cloth changing auxiliary mechanism further comprises: two driving pawls 601 and two driving bevel gears 602, the two driving pawls 601 are arranged on the inner sides of the two internal ratchets 6; the driving pawls 601 on the same side and the transmission connecting shaft 4 are hingedly connected through elastic reset members; the two driving bevel gears 602 are fixedly connected to the outer end surfaces of the two internal ratchets 6; the outer ends of the driving bevel gears 602 are vertically rotatably provided with two driven bevel gears 603; the driven bevel gears 603 on the same side and the driving bevel gears 602 are meshed with each other.

[0038] Wherein, the driven bevel gear 603 outer end coaxial fixed connection has the positioning pillar 604, the positioning pillar 604 is polygonal column structure;The inside of winding support shaft 5 and the positioning pillar 604's alignment position are set with polygonal positioning groove;Winding support shaft 5 outer end rotation rotation is provided with elastic guide frame 605;Elastic guide frame 605 and positioning support 1 between elastic connection.

[0039] The specific use mode and role of the embodiment are as follows:

[0040] The utility model discloses in using, the process that bearing frame 2 automatic reset slides up, transmission connecting shaft 4 synchronous rotation, transmission connecting shaft 4 rotates and drives the pawl 601 to push the inner ratchet wheel 6 rotation, the process that inner ratchet wheel 6 rotates, two driving bevel gears 602 push two driven bevel gears 603 and winding support shaft 5 same direction rotation, the process that two winding support shafts 5 same direction rotates, has realized to the winding and automatic replacement of non - woven fabric 502, and when the outer end winding support shaft 5 of front end has no extra non - woven fabric 502, then, winding support shaft 5 is pushed to the direction of elastic guide frame 605, realizes the quick disassembly replacement of winding support shaft 5 after winding support shaft 5 is separated from the positioning pillar 604.

[0041] In this paper, the following points need attention:

[0042] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the usual design.

[0043] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.

[0044] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited to this, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A blood sampling device that ensures safe use, comprising a positioning support, a carrier, a clamping bracket, a clamping auxiliary mechanism, a winding support shaft, and a cloth changing auxiliary mechanism, characterized in that: The bearing frame is arranged above the positioning support in a sliding manner, and is in an arc-shaped frame structure; the clamping supports are two, and are respectively hingedly arranged on the left and right sides of the upper end of the positioning support; the bottom of the clamping support is fixedly connected with a transmission connecting shaft; the transmission connecting shaft is hingedly connected with the positioning support; the clamping auxiliary mechanism is arranged between the bearing frame and the transmission connecting shaft; the winding shafts are two, and are respectively rotatably arranged at the front and rear ends of the positioning support; the cloth changing auxiliary mechanism is arranged between the winding shafts and the transmission connecting shaft; the cloth changing auxiliary mechanism comprises inner ratchets, the inner ratchets are two, and are respectively perpendicularly rotatably arranged on the outer sides of the two winding shafts; the two inner ratchets are diagonally arranged, and the positions of the inner ratchets on the same left and right side and the transmission connecting shaft are opposite.

2. The blood taking apparatus according to claim 1, wherein: the needle is provided with a needle cover; and the needle cover is provided with a needle cover locking mechanism. The clamping auxiliary mechanism comprises drive racks and drive auxiliary shafts, the drive racks are two, and are respectively fixedly connected on the front and rear sides of the bottom end face of the bearing frame; the drive auxiliary shafts are two, and are respectively rotatably arranged on the outer sides of the two drive racks, and the positions of the two drive auxiliary shafts are diagonally arranged; the outer end of the drive auxiliary shaft is coaxially fixedly connected with a drive gear.

3. The blood drawing device according to claim 2, wherein: the needle cover is provided with a notch for the needle cover to be engaged with the needle cover engaging portion of the needle cover engaging member. The drive gear is fixedly connected with the positioning support through a spiral elastic piece; the drive auxiliary shafts on the same left and right side and the transmission connecting shaft are provided with a pulley transmission assembly.

4. The blood taking apparatus according to claim 1, wherein: the needle is provided with a needle cover; and the needle cover is provided with a needle cover locking mechanism. The inner side end face of the clamping support is perpendicularly slidably provided with a positioning auxiliary frame; the outer end face of the positioning auxiliary frame is fixedly connected with a resistance increasing frame; a plurality of elastic extrusion pieces are fixedly connected between the resistance increasing frames on the same left and right side and the clamping support.

5. A blood sampling device capable of ensuring safe use as claimed in claim 1, characterized in that: A positioning through groove is formed in the inner side of the winding shaft at the rear end; a non-woven fabric is wound on the outer side of the winding shaft at the front end; and a positioning support is fixedly connected to the tail end of the non-woven fabric.

6. The blood taking apparatus according to claim 1, wherein: the needle is provided with a needle cover; and the needle cover is provided with a needle cover locking mechanism. The cloth changing auxiliary mechanism further comprises drive pawls and driving bevel gears, the drive pawls are two, and are respectively arranged on the inner sides of the two inner ratchets; the drive pawls on the same left and right side and the transmission connecting shaft are hingedly connected through elastic return pieces; the driving bevel gears are two, and are respectively fixedly connected to the outer end faces of the two inner ratchets; a driven bevel gear is perpendicularly rotatably arranged on the outer end of the driving bevel gear; and the driven bevel gears on the same side and the driving bevel gears are in mesh with each other.

7. The blood drawing device according to claim 6, wherein: the needle cover is provided with a notch; and the needle cover is provided with a notch. The outer end of the driven bevel gear is coaxially fixedly connected with a positioning support column, the positioning support column is in a polygonal column structure; a polygonal positioning groove is formed in the aligned position between the inner side of the winding shaft and the positioning support column; and an elastic guide frame is rotatably arranged on the outer end of the winding shaft; and the elastic guide frame is elastically connected with the positioning support.

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