CN208511036U - Disposable blood sampling collection from heel device - Google Patents

Abstract

The utility model relates to disposable blood sampling collection from heel devices, including shell, torsional spring, trigger member, four-bar linkage structure and blade；The shell is fastened and connected by two half shells and is formed, and the lower end of the shell is equipped with the edge of a knife, and the side of shell upper end is equipped with installing port；The trigger member includes triggering push handle and push handle block, the four-bar linkage structure include active push rod, driven push rod and articulated linkage.The utility model drives four-bar linkage structure by torque spring to promote blade that curved path arrangement is followed to complete disposable blood sampling collection from heel device, has many advantages, such as that easy to operate, wound restores fast and reduces pain in collecting sense.

Description

Disposable blood sampling collection from heel device

Technical field

The utility model belongs to medical instruments field, and in particular to a kind of disposable blood sampling collection from heel device.

Background technique

Neonatal heel blood screening refers to acquires the inspection that Heel blood carries out after baby due 72 hours.Mainly for hair Sick rate is higher, early stage non-evident sympton but has laboratory positive indication, can make a definite diagnosis and treatable disease.China at present The project for being included in screening range has congenital hypothyroidism and phenylketonuria.

In some cases, such as from neonatal palm root it extracts small part blood or requires more volume here When blood, it may be necessary to different blood sampling movements.Cutoff action instead of linearly penetrating into movement can be for cutting off capillary It is beneficial.Therefore there are a variety of designs of hemostix, the hemostix uses blade rather than needle, and substantially described in rotation Blade to promote blade by the hole in the shell of hemostix, with cut skin generate blood in skin can be by skin table The short slit or notch in face.In the hemostix of rear seed type, construction generally it is more complicated, using blade rather than needle, and And the hemostix also typically uses the arrangement that the pivot to promote blade to follow curved path is driven by torque spring.

The patent of the U.S. the 4157086th discloses a kind of arrangement, and wherein torque spring is predetermined and can to promoting blade to carry out It repeats mobile pin and applies rotation driving.

The patent of the U.S. the 5527333rd discloses a kind of arrangement, and wherein user presses trigger member element, the trigger member member Part extends the spring not stressed initially, to stretch the spring against the biasing of the spring, with blade prominent from shell.Cause This, blade presses trigger member by user rather than is moved forward by the strain energy of release storage in the spring.

The patent of the U.S. the 2823677th discloses a kind of hemostix driven by torque spring.

The patent of the U.S. the 2007/0095178th discloses blade and is connected to crank connector by the spring of crosswise movement Hemostix.Triggering hemostix is covered in trigger member by pressing, the trigger member lid biases and then discharges connector.

The patent of the U.S. the 5571132nd discloses a kind of arrangement, wherein applying input power without passing through release by user Strain energy pushes ahead blade along scheduled path.

The patent of the U.S. the 4643189th discloses a kind of arrangement, wherein spring rotate or crosswise movement drives blade To realize notch.

Application number: 201380016334.1 the utility model disclose a kind of hemostix, including blood taking needle main body (14), described Blood taking needle main body is elongated form and has the pointed tip (16) being located at its front end；Driving spring (26), the drive For spring of moving for longitudinal movement to be substantially sent to the blood taking needle main body and shell (10), the shell receives the blood sampling Needle main body and at its front end have hole (22), when hemostix is triggered, the pointed tip (16) of blood taking needle main body makes Used time is prominent by the hole.Hemostix include for tip from the movement of hole control blood taking needle main body (14) when prominent with The tip of blood taking needle is promoted to execute the device (28,30,32) of transverse shifting.Cutoff action is applied to have and cut by the hemostix Strain occurs for the tool of cut edge edge and the spring for properly using portrait orientation, the spring forward motion power to be applied to Blood taking needle, to drive the blood taking needle to realize notch, to benefit from many benefits of previously mentioned hemostix.This is practical new The other target of type is to provide the hemostix that cutoff action is realized using improved needle section.

Application number: the utility model discloses disposable newborn vola hemostixes, including blood sampling by 201420410955.X Needle installs shell (1), and driving lever (2), blood sampling blade (3) are provided in installation shell (1), and driving lever (2) passes through central axis (4) and peace The rotation connection of shell (1) inner wall center is filled, driving lever (2) includes shift lever end (21), the body of rod (22), and shift lever end (21) exposure is in peace Fill shell (1) outside, it is characterised in that: be provided on blood taking needle installation shell (1) and the shell of shift lever end (21) opposite end recessed Slot (5), groove (5) bottom are provided with blood sampling hole (51), and the body of rod (22) is connect with blood sampling blade (3) by elastic support (6), taken a blood sample Blade (3) is fixed by limit guide rail (7) compression.The utility model efficiently solves traditional blood taking needle, in infant's blood collection procedure In, it can not be accurately positioned, it is sometimes desirable to blood sampling be repeated several times, reduce blood sampling efficiency, while also increasing the feeling of pain of patient.

Application number: 201610705561.0 disclose a kind of blood sampling collection from heel device, comprising: and shell, front end are equipped with the edge of a knife, One side is equipped with installing port；Setting in installing port location triggered part, trigger member in a manner of inwardly moveable forward with shell shape At connection；Rack member and excitation gear, rack member including engagement connection are installed in shell along front and back is slideable, rack member Rear end connection excitation spring, excite the rear end of spring to connect with the intracorporal spring structure of shell is located at, excite gear pass through connection Long hole and the first support axis connection being immobilized in the shell, are equipped with limit opening in the rear end of excitation gear, set in shell There is limit inserted block, blade is installed in the front end of excitation gear；Swing arm is controlled including triggering, triggering control swing arm is turnably pacified Loaded on being arranged in intracorporal second support shaft of shell, using the second support shaft position as separation, triggering control swing arm is by the first arm Section and the second arm section are constituted.This blood sampling collection from heel device has the advantages that easy to operate, feed velocity is fast, pain in collecting sense is low.

Utility model content

The utility model provides that a kind of structure is simple, easy to use and laborsaving, pain is few after blood sampling, wound healing is fast one Secondary property uses blood sampling collection from heel device.

The technical solution of the utility model includes:

Disposable blood sampling collection from heel device, including shell, torsional spring, trigger member, four-bar linkage structure and blade；The shell is It is integrally formed；The shell is fastened and connected by two half shells and is formed, and multiple insertings are provided on the edge of a half shell Column is equipped with multiple plug-in openings, the tight inserting that two half shells pass through inserting column and plug-in opening on the edge of another half shell Conjunction forms detachable be fixedly connected.

The shell includes upper plane, the lower plane parallel with upper plane and the bottom surface Rectangular shell parallel with upper plane, institute The one end for stating Rectangular shell has rectangle installing port, and the bottom face of the Rectangular shell is connected with the upper plane of shell, the Rectangular shell Width and shell on plane equivalent width, one end of the Rectangular shell is concordant with one end of upper plane；It is described flat Face and the left and right ends of lower plane are connected smoothly by arcwall face respectively；The middle part of the upper plane is equipped with rectangular through-hole, The middle part of the lower plane is equipped with the edge of a knife.

The outer surface of two half shells of the shell is equipped with anti-skid chequer.

The anti-skid chequer includes the first groove similar with finger shape and setting multiple protrusions in the first groove.

The upper end of the shell anti-skid chequer is equipped with the tag slot of rectangle.

The length of the Rectangular shell is less than the length of upper plane；The trigger member includes triggering push handle and push handle block,

Triggering push handle includes hand touching push handle part and triggering arm section outside shell；Before the triggering arm section includes Hold trigger arm and rear end trigger arm；In the state of to be excited, the rear end trigger arm is located at outside shell and push handle block forms and blocks Connection is closed,

In the state of to be excited, the rear end trigger arm is located at outer formed with push handle block of shell and is connected together, and reduces The risk that maloperation causes blood taking needle to fail, the length of Rectangular shell is plus plane in the length and shell of the trigger member outside shell Length it is consistent, keep blood sampling collection from heel device very beautiful.

Support shaft and spring structure are equipped in one of half shell, the upper end of the torsional spring is hook, the torsion The lower end of spring is straight torsion arm, and the lower end of the torsional spring is fixed by spring structure；The support shaft includes the first support Axis and the second support shaft；The torsion spring set is in the first support shaft；The spring structure includes two limited blocks, described two limits Position block is located on the inner surface of shell, card slot is formed between two limited blocks, the straight torsion arm is located in card slot.

The four-bar linkage structure includes active push rod, driven push rod and articulated linkage, and the active push rod is rotatably set Torsional spring upper end is set in the first support shaft and is located at, the lower surface at the rear portion of the active push rod is equipped with the first circular cylindrical projection It rises, torsional spring hooks first cylindrical protrusions；The upper surface at the rear portion of the active push rod and the front of driven push rod Hinge, the upper surface hinge at the rear portion of the lower surface and articulated linkage at the rear portion of the driven push rod, before the articulated linkage Portion is spindle rotationally arranged in the second support shaft, and the driven upper surface for postponing portion is recessed equipped with matching with blade shapes Slot, the blade are embedded in the groove of driven push rod.

Two half shells are detachable, which to be fixedly connected, can make to install very convenient, then knife be provided on the lower plane of shell Mouth can be such that hemostix preferably contacts with infant skin.

The medial surface on the top of described two half shells is equipped with rectangular preiection, can when blood sampling collection from heel device, which excites, to be completed To prevent triggering push handle from taking out out of shell, prevent blood sampling collection from heel device from reusing.

The triggering push handle is located at width, the width of push handle block and the equivalent width of shell of the touching of the hand outside shell push handle part, The height of hand touching push handle part is greater than the height of installing port, not only easy to use, but also keeps blood sampling collection from heel device more aesthetically pleasing.

The utility model have the advantage that and the utility model has the advantages that

1. the lower end surface of the shell is plane, hemostix can be made preferably to contact with infant skin；

2. surface of shell is equipped with anti-skid chequer, there is antiskid function；

3. the shape of shell uses medical staff more preferably；

4. more the utility model drives four-bar linkage structure by torque spring to promote blade that curved path arrangement is followed to complete Disposable blood sampling collection from heel device has many advantages, such as that easy to operate, wound restores fast and reduces pain in collecting sense；

5. the utility model be it is disposable, have the function of preventing from reusing；

6. rear end trigger arm is connected together with the formation of push handle block, reduce maloperation, reduces the risk of blood taking needle failure.

Detailed description of the invention

Fig. 1 is the main view of the disposable blood sampling collection from heel device of the utility model；

Fig. 2 is the explosive view of the disposable blood sampling collection from heel device of the utility model；

Fig. 3 is the main view of the disposable one of shell of blood sampling collection from heel device of the utility model；

Fig. 4 is structural schematic diagram when the disposable blood sampling collection from heel device of the utility model is to be excited；

Fig. 5 is the structural schematic diagram after the completion of the disposable blood sampling collection from heel device excitation of the utility model；

In figure:

1, shell 2, torsional spring 3, blade 4, upper plane

5, lower plane 6, Rectangular shell 7, arcwall face 8, the out edge of a knife

9, rectangle tag slot 10, the first groove 11, hook 12, straight torsion arm

13, limited block 14, card slot 15, triggering push handle 16, push handle block

17, hand touching push handle part 18, triggering arm section 19, the first support shaft 20, the second support shaft

21, active push rod 22, driven push rod 23, articulated linkage 24, rectangular preiection

101, raised 191, cylinder 192, small column 211, the first cylindrical protrusions

212, first through hole 213, the second cylindrical protrusions 221, the second through-hole 222, the second cylindrical protrusions

223, the second groove 231, third through-hole 232, fourth hole

Specific embodiment

As depicted in figs. 1 and 2, disposable blood sampling collection from heel device, including shell 1, torsional spring 2, trigger member, four-bar linkage structure With blade 3.

As shown in Fig. 2, the shell 1 is integrally formed；The shell 1 is fastened and connected by two half shells and is formed, one Multiple inserting columns are provided on the edge of a half shell, on the edge of another half shell be equipped with multiple plug-in openings, two and half Shell cooperatively forms detachable be fixedly connected with tight insert of plug-in opening by inserting column.

The shell 1 includes upper plane 4, the lower plane 5 parallel with upper plane 4 and the Rectangular shell 6 parallel with upper plane 4, One end of the Rectangular shell 6 has rectangle installing port, and the bottom face of the Rectangular shell 6 is connected with the upper plane 4 of shell 1, described The equivalent width of plane 4, one end of the Rectangular shell 6 are concordant with one end of upper plane 4 on the width and shell 1 of Rectangular shell 6；Institute The left and right ends for stating the upper plane 4 and lower plane 5 pass through arcwall face 7 respectively and are connected smoothly；The middle part of the upper plane 4 Equipped with rectangular through-hole, the middle part of the lower plane 5 is equipped with the edge of a knife 8.

The outer surface of two half shells of the shell 1 is equipped with anti-skid chequer, and the upper end of 1 anti-skid chequer of shell is equipped with square The tag slot 9 of shape.

The anti-skid chequer includes the first groove 10 similar with finger shape and setting multiple protrusions in the first groove 10 Shape shown in 101, described preferred Fig. 1 of raised 101 spread geometry.

As Figure 2-Figure 5, it is preferred that support shaft and spring structure are equipped in one of half shell of the shell 1, The upper end of the torsional spring 2 is hook 11, and the lower end of the torsional spring 2 is straight torsion arm 12, and the lower end of the torsional spring 2 passes through spring knot Structure is fixed；Preferably, the spring structure includes two limited blocks 13, and described two limited blocks 13 are located at the interior of shell 1 On surface, card slot 14 is formed between two limited blocks 13, the straight torsion arm 12 is located in card slot 14.

The trigger member includes triggering push handle 15 and push handle block 16, and the installation of shell 1 is arranged in the triggering push handle 15 Mouthful 9 positions and being formed in a manner of inwardly moveable forward with shell 1 connect, and triggering push handle 15 includes the hand outside shell 1 Touch push handle part 17 and triggering arm section 18；The triggering arm section 18 moves inside Rectangular shell 6, the triggering arm section packet Include front end trigger arm and rear end trigger arm, as shown in figure 3, in the state of to be excited, the rear end trigger arm be located at shell 1 it is outer with The formation of push handle block 16 is connected together；Rear end trigger arm is located at outside shell 1, medial surface and the rear end trigger arm of push handle block 16 Upper end face contact forms insurance institution, prevents blood sampling collection from heel device maloperation.

As shown in Figure 4, it is preferred that the triggering push handle 15 is located at the width of the touching of the hand outside shell 1 push handle part 17, push handle The height of the width 16 of block and the equivalent width of shell 1, hand touching push handle part 17 is greater than the height of Rectangular shell 6.

As shown in Figure 4 and Figure 5, the support shaft includes the first support shaft 19 and the second support shaft 20；Second support Height of the height of axis 20 less than the first support shaft 19；2 sets of the torsional spring in the first support shaft 19；Preferably, described first Support shaft 19 includes that the cylinder 191 of 1 inner surface of shell is arranged in and the small column 192 at 191 center of cylinder, the torsional spring is arranged in 2 sets on cylinder 191.

As shown in Fig. 2, the four-bar linkage structure includes active push rod 21, driven push rod 22 and articulated linkage 23, it is described from The vertical section of dynamic push rod 22 is Z-shaped, and the active push rod 21 is spindle rotationally arranged in the first support shaft 19 and is located at torsional spring 2 The lower surface of upper end, the rear portion of the active push rod 21 is equipped with the first cylindrical protrusions 211, and the hook 11 of torsional spring 2 hooks institute State the first cylindrical protrusions 211；The front hinge of the upper surface at the rear portion of the active push rod 21 and driven push rod 22, it is described from The upper surface hinge at the rear portion of the lower surface and articulated linkage 23 at the rear portion of dynamic push rod 22, the front of the articulated linkage 23 can turn In the second support shaft 20, the blade 3 is embedded in the upper surface of driven push rod 22 for dynamic setting.

Preferably, the middle part of the active push rod 21 is equipped with first through hole 212 corresponding with small column 192, and described the The rotatable set of one through-hole 212 is on small column 192；The upper surface at the rear portion of the active push rod 21 is equipped with the second cylinder Protrusion 213；The front of the driven push rod 22 be equipped with second through-hole 221 corresponding with the second cylindrical protrusions 213, it is described from The left side of the lower surface at the rear portion of dynamic push rod 22 is equipped with third cylindrical protrusions 222；The front of the articulated linkage 2323 is equipped with The middle part of third through-hole 231 corresponding with the second support shaft 20, the articulated linkage 23 is equipped with and third cylindrical protrusions 222 Corresponding fourth hole 232；The upper end at 22 rear portion of driven push rod is equipped with the second groove matched with 3 shape of blade 223, the blade 3 is embedded in the second groove 223 of driven push rod 22.

Rectangular preiection 24, the side of the rectangular preiection 24 are respectively equipped on the medial surface on the top of described two half shells Face is connected with the medial surface on half shell top, as shown in figure 3, front end trigger arm can not be from shell 1 because of the blocking of rectangular preiection 24 Interior extraction, it is therefore prevented that blood sampling collection from heel device reuses.

The course of work of the utility model: as shown in figure 4, in the state that blood sampling collection from heel device is in be excited, rear end touching Hair arm is located at outer formed with push handle block 16 of shell 1 and is connected together；The front end of front end trigger arm and 21 front end of active push rod Side compresses contact in the formation of rear end working position, and the first cylindrical protrusions 211 of 21 lower end of active push rod hook the hook of torsional spring 2 11 make torsional spring 2 be in twisting to extended state, and the point of a knife on blade 3 is located in shell 1.

When needing to excite, 3 exit of blade of blood sampling collection from heel device lower end surface is resisted to the heel of baby, extracts push handle block 16, it is pushed away to stop with finger and touches push handle part 17, rear end trigger arm is pushed ahead along 6 inside 1 of Rectangular shell and is entered inside shell 1, Front end trigger arm is disengaged with active push rod 21, and four-bar linkage structure band cutting blade 3 forms arc designated port in baby's heel.

As shown in figure 5, the first cylindrical protrusions 211 and the hook 11 of torsional spring 2 are detached from after blood sampling collection from heel device is in excitation, Torsional spring 2 is set to be in normal condition, blade 3 after driven 22 rotary camber designated port of push rod with being retracted in shell 1.

One embodiment of the utility model is described in detail above, but the content is only the utility model Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model All the changes and improvements etc., should still belong within the patent covering scope of the utility model.

Claims (8)

1. disposable blood sampling collection from heel device, it is characterised in that: including shell, torsional spring, trigger member, four-bar linkage structure and blade； The shell is integrally formed；The shell is fastened and connected by two half shells and is formed, and is arranged on the edge of a half shell There are multiple inserting columns, multiple plug-in openings are equipped on the edge of another half shell, two half shells pass through inserting column and inserting Tight insert in hole cooperatively forms detachable be fixedly connected；

The shell includes upper plane, the lower plane parallel with upper plane and the bottom surface Rectangular shell parallel with upper plane, the square One end of shape shell has rectangle installing port, and the bottom face of the Rectangular shell is connected with the upper plane of shell, the width of the Rectangular shell The equivalent width of degree and plane on shell, one end of the Rectangular shell are concordant with one end of upper plane；The length of the Rectangular shell Less than the length of upper plane；The left and right ends of the upper plane and lower plane are connected smoothly by arcwall face respectively；It is described The middle part of upper plane is equipped with rectangular through-hole, and the middle part of the lower plane is equipped with the edge of a knife；

The outer surface of two half shells of the shell is equipped with anti-skid chequer.

2. disposable blood sampling collection from heel device according to claim 1, it is characterised in that: the anti-skid chequer includes and finger Similar first groove of shape and setting multiple protrusions in the first groove.

3. disposable blood sampling collection from heel device according to claim 1, it is characterised in that: the trigger member includes that triggering pushes away Handle and push handle block, in the state of to be excited, the rear end trigger arm is located at outer formed with push handle block of shell and is connected together；Institute It states triggering push handle the installing port position of shell is set and is formed in a manner of inwardly moveable forward with shell and connect, triggering pushes away Handle includes hand touching push handle part and triggering arm section outside shell；The triggering arm section includes front end trigger arm and rear end Trigger arm；The push handle block is consistent with the length of rear end trigger arm.

4. disposable blood sampling collection from heel device according to claim 1, it is characterised in that: in one of half shell Equipped with support shaft and spring structure, the upper end of the torsional spring is hook, and the lower end of the torsional spring is straight torsion arm, the torsional spring Lower end is fixed by spring structure；The support shaft includes the first support shaft and the second support shaft；The torsion spring set is In one support shaft.

5. disposable blood sampling collection from heel device according to claim 1, it is characterised in that: the four-bar linkage structure includes master Dynamic push rod, driven push rod and articulated linkage, the active push rod are spindle rotationally arranged in the first support shaft and are located on torsional spring End, the lower surface at the rear portion of the active push rod are equipped with the first cylindrical protrusions, and it is cylindrical that torsional spring hooks described first Protrusion；The upper surface at the rear portion of the active push rod and the front hinge of driven push rod, the following table at the rear portion of the driven push rod The upper surface hinge in face and the rear portion of articulated linkage, the front of the articulated linkage are spindle rotationally arranged in the second support shaft, The driven upper surface for postponing portion is equipped with the second groove matched with blade shapes, and the blade is embedded in driven push rod In second groove；

In the state that hemostix is in be excited, triggering arm section is located at rear end working position, the front end of front end trigger arm and The side of active push rod front end compresses contact in the formation of rear end working position, and the first cylindrical protrusions of active push rod lower end hook torsion Spring hook makes torsional spring be in twisting to extended state, and the point of a knife on blade is located in shell；Shape after hemostix is in excitation Under state, triggering arm section is located at front end working position, and front end trigger arm is disengaged with active push rod, the first cylindrical protrusions and torsion Spring hook is detached from, and torsional spring is made to be in normal condition, and blade behind driven push rod rotary camber path with being retracted in shell.

6. disposable blood sampling collection from heel device according to claim 1, it is characterised in that: the top of described two half shells Medial surface on be respectively equipped with rectangular preiection.

7. disposable blood sampling collection from heel device according to claim 3, it is characterised in that: the triggering push handle is located at shell Outer hand touches the equivalent width of plane on the width and shell of the width of push handle part, push handle block, and the hand touches push handle part Height be greater than installing port height.

8. disposable blood sampling collection from heel device according to claim 1, it is characterised in that: the upper end of the shell anti-skid chequer Tag slot equipped with rectangle.