CN209059225U - Take blood needle - Google Patents

Abstract

One kind takes blood needle, including shell, takes blood needle tubing, pressure spring, takes blood needle tubing lock device, takes blood needle tubing trigger and take blood needle tubing guide；The shell takes blood needle tubing guide to be fixedly connected with described, it is described that blood needle tubing is taken to be arranged in the shell through the pressure spring, the needle point of blood needle tubing is taken to be arranged in the guiding channel for taking blood needle tubing guide, one end of the pressure spring is connected to the shell, the other end of pressure spring, which is connected to, takes blood needle tubing, it is described that blood needle tubing is taken to take blood needle tubing lock device to fix by described, it is described that blood needle tubing trigger is taken described to take blood needle tubing lock device for stirring, so that it is described take blood needle tubing lock device to be formed with and take blood needle channel after, the pressure spring takes blood needle tubing to move a distance along the guiding channel described in making, so as to which the needle point of blood needle tubing is taken to be exposed to the guiding channel.The beneficial effect is that: it takes the usage mode of blood needle simple, controlled can pop up；Using taking the process of blood needle more hygienic.

Description

Take blood needle

Technical field

Take blood needle technical field the utility model relates to medical, and in particular to it is a kind of facilitate operation take blood needle.

Background technique

Extracting vein blood is needed in blood testing, medical instrument used is to take blood needle at this time.Take blood needle function be by Blood drainage in vein blood vessel or capillary enters blood test tube, and blood test tube is generally the negative pressure of vacuum examination for being built-in with reagent Pipe.Blood program medically, is being taken to be different with infusion program, needle tubing must be inserted into vein blood vessel by infusion program, and be taken Needle tubing is then necessarily inserted into vein blood vessel by blood program, and when taking blood, medical staff confirms that the mode of syringe location is in needle Observe in needle tubing whether have blood back after pipe insertion, when there are blood back, then it is assumed that needle tubing has been inserted into target position.

Due to taking blood program of less demanding to the insertion position of needle tubing, will not lead to grave consequences after inserting error, because This, takes blood needle can be to facilitating the target of operation to improve.

Be disclosed on June 13rd, 2017 Chinese patent literature CN206239824U describe it is a kind of disposable automatic Pop-up medical needle, the medical needle include shell, needle tubing, needle stand pipe, bursting tube and spring, and the front end of the shell is equipped with locking Switch, the outer wall of the front end of the needle stand pipe are equipped with outer bulge loop, and the outer wall of the front end of the bursting tube is equipped with to be opened with locking The card slot being used cooperatively is closed, the inner wall of the rear end of bursting tube is equipped with internal projecting ring, and the outer wall of bursting tube rear end is equipped with port, should Buckle is equipped in port, the needle tubing is fixed on needle stand pipe, and the needle stand pipe is fixed inside the shell, and the bursting tube is located at shell It is interior and cover on needle stand pipe, the spring pocket on needle stand pipe, one end of spring support on the shell, the other end be against bursting tube On, the outer diameter of the outer bulge loop of the needle stand pipe is greater than the internal diameter of the internal projecting ring of bursting tube.The technical solution is for being infused, taking blood After needle tubing is retracted, avoid needle tubing from stabbing personnel.

Be disclosed on June 29th, 2016 Chinese patent literature CN205339761U describe one kind can automatic spring needle stalk Syringe needle, the needle stalk and needle point including pintle and successively being connect with the pintle, which is characterized in that the syringe needle Head outside is provided with an outer tube, and the outer tube is provided with annular groove in the medium position of corresponding needle stalk；Needle stalk middle part is set It is equipped with a fixing sleeve, the needle stalk is fixing sleeve is equipped with a support block at the 4~6mm of fixing sleeve bottom, in needle stalk bottom Compressed spring is arranged between the support block, the needle stalk is being connected with an elastic compression portion by positon of near bottom；The fixation Set is external to be disposed with bayonet block, inner tube and inner tube set along to the direction of needle point, and bayonet block bottom is prolonged inwardly The bayonet that width is 4~5mm is stretched out, the bayonet is set between the fixing sleeve and support block, and bayonet block top is one Horizontal by the inclined-plane of 45° angle, said inner tube bottom end is the inclined-plane matched with the inclined-plane on bayonet block top, the bayonet block Length be adapted with the width of the annular groove, when inner tube set push said inner tube along needle obstruct basal sliding when, it is described Bayonet is moved to inside annular groove between fixing sleeve and support block, meanwhile, the compressed spring pushes entire needle to obstruct to needle point Direction movement.

Utility model content

The goal of the invention of the utility model is to provide one kind and takes blood needle, to solve existing to take blood for operating with personnel It is more demanding, the technical issues of being not convenient to use.

In order to solve the above technical problems, the utility model adopts the following technical solution:

Design one kind and take blood needle, including shell, take blood needle tubing, pressure spring, take blood needle tubing lock device, take blood needle tubing trigger and Take blood needle tubing guide；The shell takes blood needle tubing guide to be fixedly connected with described, described to take blood needle tubing through the pressure spring It is arranged in the shell, takes the needle point of blood needle tubing to be arranged in the guiding channel for taking blood needle tubing guide, the pressure spring One end be connected to the shell, the other end of pressure spring, which is connected to, takes blood needle tubing, described that blood needle tubing is taken to take blood needle tubing by described Lock device is fixed, it is described take blood needle tubing trigger for stir it is described take blood needle tubing lock device so that described take blood needle tubing locking Device is formed with take blood needle channel after, the pressure spring make it is described take blood needle tubing to move a distance along the guiding channel so that The needle point of blood needle tubing is taken to be exposed to the guiding channel.

Preferably, described to take blood needle tubing include the hose for taking blood end, exit and connection to take blood end and exit, described The middle part at blood end is taken to be equipped with the limited block that diameter is greater than the pressure spring outer diameter；The pressure spring is cylindricality pressure spring, and one end is connected to institute Shell is stated, the other end is connected to the limited block；It is described to take blood needle tubing lock device to take the symmetrically arranged left side in blood end around described Elastic component and right elastic component, one end of left elastic component are fixedly connected with the shell, and the other end of left elastic component is equipped with for taking off The right handhold of the limited block is detained, one end of right elastic component is fixedly connected with the shell, and the other end of right elastic component, which is equipped with, to be used The left handhold of the limited block described in button.

It is further, described that take blood needle tubing trigger include left elastic component shifting part, right elastic component shifting part, right elastic component Shifting part includes the left interconnecting piece of left pressing section, right shifting block and connection left pressing section and right shifting block, is equipped with and takes on left interconnecting piece The left through hole in blood end, left shifting block through hole, left elastic component shifting part include right pressing section, left shifting block and the right pressing section of connection and a left side The right interconnecting piece of shifting block is equipped on right interconnecting piece and takes the right through hole in blood end, right shifting block through hole, and left shifting block is through described left group Block through hole, for stirring the right handhold to the left, so that right handhold is moved to the left side of the limited block, right shifting block runs through The right shifting block through hole, for stirring the left handhold to the right, so that left handhold is moved to the right side of the limited block, institute It states and blood end is taken to take the left through hole in blood end described in and take the right through hole in blood end, when right handhold is moved to the left side of the limited block When, take the right through hole in blood end to take blood end to be equipped with gap or be in contact with described, when left handhold is moved to the right side of the limited block When, take the left through hole in blood end to take blood end to be equipped with gap or be in contact with described.

Further, the left pressing section and the shell are integrally formed, the right pressing section and shell one Molding, left pressing section and right pressing section are elastomer；Alternatively, being respectively equipped with left interconnecting piece through hole, right company on the shell Socket part through hole, between the left shifting block through hole and the left pressing section, the left interconnecting piece run through the left interconnecting piece Through hole, between the right shifting block through hole and the right pressing section, the right interconnecting piece runs through through the right interconnecting piece Hole.

Further, the pressing section cooperated with the left pressing section, right pressing section respectively is equipped on the housing to lead Approaching channel, the left pressing section, right pressing section are respectively protruding into corresponding pressing section guide channel.

Preferably, the shell, which is equipped with, takes blood end guide hole, and the tail portion setting for taking blood end is taking blood end guide hole It is interior, when the pressure spring make it is described take blood needle tubing to move described a distance along the guiding channel after, the tail portion for taking blood end It is still inserted into and takes in the guide hole of blood end.

Further, described to take blood needle tubing guide include guide body, is equipped with adhesive layer in the bottom surface of guide body, described to lead Draw channel to be located in guide body, and is equipped with inclination angle, the axis for taking blood end and the guiding channel with the bottom surface of guide body Axis it is parallel.

Further, the top in the two sides of the guide body equipped with the adhesive tape for being used to form adhesive layer, in guide body Face is provided with the foresight for being used to indicate target position, after the needle point for taking blood needle tubing is exposed to the guiding channel, the standard Star is projected in described take at the needle point of blood needle tubing.

Compared with prior art, the utility model has the beneficial effects that taking the usage mode of blood needle simple；Using taking blood needle Pipe guide, using taking the process of blood needle more hygienic.

Detailed description of the invention

Fig. 1 is a kind of structure chart for taking blood needle of the utility model.

Fig. 2 is a kind of schematic diagram for taking blood needle tubing guide for taking blood needle of the utility model.

Fig. 3 is the cross-sectional view for taking blood needle tubing trigger position of the A-A hatching along Fig. 1.

Fig. 4 is the cross-sectional view for taking blood needle tubing trigger position of the B-B hatching along Fig. 1, is schematically shown in figure The structure of guide body.

In figure, 1- takes blood needle tubing guide, 11- adhesive tape, 12- guide body, 121- guiding channel, 122- guide body top surface, The outlet of 123- guiding channel, 124- foresight, 2- take blood needle tubing, and 21- takes blood end, 211- limited block, 22- exit, 3- shell, The right elastic component of 31-, the left handhold of 311-, 32- take blood end guide hole, the right elastic component shifting part of 4-, the right shifting block through hole of 41-, and 42- takes The right through hole in blood end, the left shifting block of 43-, the right side 44- press block, the left elastic component shifting part of 5-, the left shifting block through hole of 51-, and 52- takes blood end Left through hole, the right shifting block of 53-, the left side 54- press block, and the right shifting block end 531-, 7- pressure spring, L is when right shifting block is located at the limited block right side When side, the mobile shortest distance of right shifting block.

Specific embodiment

Illustrate specific embodiment of the present utility model with reference to the accompanying drawings and examples, but following embodiment only uses It is described in detail the utility model, does not limit the scope of the utility model in any way.

Embodiment 1: one kind taking blood needle, referring to Fig. 1-4, including shell 3, takes blood needle tubing 2, pressure spring 7, takes blood needle tubing locking Device takes blood needle tubing trigger and takes blood needle tubing guide 1.Pressure spring 7 selects cylindrical pressure spring.

Referring to Fig. 1-2 and Fig. 4, taking blood needle tubing guide 1 includes guide body 12, and guiding channel 121 is located in guide body 12, The bottom surface of guiding channel 121 and guide body 12 is equipped with inclination angle, and the gradient at the inclination angle is set as needed, guiding channel 121 Guiding channel outlet 123 is equipped in the bottom surface of guide body 12.As an improvement, being equipped with adhesive layer in the bottom surface of guide body 12.As Another improved procedure is equipped with the adhesive tape 11 for being used to form adhesive layer in the two sides of guide body 12, in this way in use, taking blood needle tubing Guide 1 can be adhered to the person that takes blood.As an improvement, conductor body 12 selects cuboid, the top surface in guide body 12 It is provided with the foresight 124 for being used to indicate target position, foresight 124 can be protrusion, groove or printed pattern, and foresight 124 is general For " ten " font.

Referring to Fig. 1, shell 3 is equipped with and takes blood end guide hole 32, and shell 3 is fixedly connected with guide body 12, and concrete mode can To take blood vessel guide hole 32 and guiding channel 121 to select the circular hole of same apertures by being welded and fixed, be integrally formed, and Take the setting coaxial with guiding channel 121 of blood vessel guide hole 32.

Referring to Fig. 1, taking blood needle tubing 2 includes the hose for taking blood end 21, exit 22 and connection to take blood end 21 Yu exit 22, It is equipped with the limited block 211 that diameter is greater than 7 outer diameter of pressure spring at the middle part for taking blood end 21, taking blood end 21 is hard tube.

Referring to Fig. 1, taking blood needle tubing lock device is to surround to take the symmetrically arranged left elastic component (unmarked) in blood end 21 and right bullet Property part 31, one end and the shell 3 of left elastic component be welded and fixed, and the other end of left elastic component is equipped with for button limited block 211 Right handhold, right handhold are located at the protruding block on the right side of left elastic component, can take off the limited block 211 on right side in this way；Right elastic component 31 one end is welded and fixed with shell 3, and the other end of right elastic component 31 is equipped with the left handhold 311 for button limited block 211, left Handhold 311 is the protruding block for being located at the left side of right elastic component, can take off the limited block 211 in left side in this way.

Referring to Fig. 1, take the tail portion at blood end 21 to sequentially pass through pressure spring 7, take blood end guide hole 32 after connect with hose, at this moment, 7 one end of pressure spring is connected to shell 3, and the other end of pressure spring 7 is connected to limited block 211, and right handhold takes off the left side of limited block 211, Left handhold 311 takes off the right side of limited block 211, and pressure spring 7 is confined state, and the needle point at blood end 21 is taken to be arranged in guiding channel In 121, it is parallel with the axis of guiding channel 121 to take the axis at blood end 21, in this way, taking blood end 21 just by taking blood needle tubing lock device It has been fixed in shell 3.

Blood needle tubing trigger is taken to take blood needle tubing lock device for stirring, so that taking blood needle tubing lock device to be formed with takes blood needle tubing Behind channel, pressure spring 7 makes that blood end 21 is taken to move a distance along guiding channel 121, so as to which the needle point at blood end 21 is taken to be exposed to guiding Channel 121 takes the needle point at blood end 21 to stretch out in guiding channel outlet 123, at this point, taking the tail end at blood end 21 to be still inserted in takes blood It holds in guide hole 32, in terms of the visual angle perpendicular to 12 bottom surface of guide body, foresight 124 is projected at the needle point for taking blood end 21.

Specifically, taking blood needle tubing trigger includes left elastic component shifting part 4, right elastic component shifting part 5, the right side referring to Fig. 1-4 Elastic component shifting part 5 includes the left interconnecting piece of left pressing section 54, right shifting block 53 and connection left pressing section 54 and right shifting block 53, on a left side Interconnecting piece is equipped with and takes the left through hole 52 in blood end, left shifting block through hole 51, and the length of right shifting block 53, which should be able to meet, stirs a left side and take off Needed for first 311, left elastic component shifting part 4 includes right pressing section 44, left shifting block 43 and the right pressing section 44 of connection and left shifting block 43 Right interconnecting piece is equipped on right interconnecting piece and takes the right through hole 42 in blood end, right shifting block through hole 41, and the length of left shifting block 43 should be able to Needed for satisfaction stirs right handhold, in Fig. 1, left connecting portion is in the lower section of right interconnecting piece, at this point, left shifting block 43 runs through left shifting block Through hole 51, for stirring right handhold to the left, so that right handhold is moved to the left side of limited block 211, right shifting block 53 is through the right side Shifting block through hole 41, for stirring left handhold 311 to the right, so that left handhold 311 is moved to the right side of limited block 211, in Fig. 1 In, right shifting block 53 is higher than left interconnecting piece, and the right shifting block end 531 of shifting block 53 right in this way can run through right shifting block through hole 41 , take blood end 21 through taking the left through hole 52 in blood end and taking the right through hole 42 in blood end, when right handhold is moved to a left side for limited block 211 When side, take the right through hole 42 in blood end with take blood end 21 to be equipped with gap or to be in contact, when left handhold 311 is moved to limited block 211 When right side, take the left through hole 52 in blood end with take blood end 21 to be equipped with gap or to be in contact.In the present embodiment, left shifting block is located at limited block When left side, the mobile shortest distance of left shifting block is L left, when right shifting block is located on the right side of limited block, the mobile shortest distance of right shifting block For the right side L, before the movement of right elastic component shifting part 5, left shifting block 43 fits in left 51 right side of shifting block through hole, and blood end is taken to fit in Take left 52 right side of through hole in blood end, then in the direction of motion of right elastic component shifting part 5,51 length of the left shifting block through hole >=left side L+ Right+left shifting block thickness of L takes left 52 length of through hole in blood end >=L is right+to take blood end diameter；Similarly, it is transported in left elastic component shifting part 4 Before dynamic, right shifting block end 531 fits in right 41 left side of shifting block through hole, takes blood end to fit in and takes the right through hole 42 in blood end left Side, then in the direction of motion of left elastic component shifting part 4, right+right shifting block thickness of 41 length of the right shifting block through hole >=left side L+L is taken Right 42 length of through hole in blood end >=L is left+take blood end diameter.

Further, referring to Fig. 1, Fig. 3 and Fig. 4, left interconnecting piece through hole is respectively equipped on shell 3, right interconnecting piece passes through Perforation, between left shifting block through hole 51 and left pressing section 54, left interconnecting piece run through left interconnecting piece through hole, run through in right shifting block Between hole 41 and right pressing section 44, right interconnecting piece run through right interconnecting piece through hole.In other embodiments, left pressing section 54 and shell Body 3 is integrally formed, and right pressing section 44 is integrally formed with shell 3, and left pressing section 54 and right pressing section 44 are elastic material production Elastomer.

Further, the pressing section cooperated with left pressing section 54, right pressing section 44 respectively is equipped on shell 3 to guide Slot, left pressing section 54, right pressing section 44 are respectively protruding into corresponding pressing section guide channel.

In use, exit 22 is inserted in negative-pressure vacuum blood test tube, crimp hose, to take blood end 21 to move When, hose will not be straightened, and will not thus tear exit 22, and left hand, which presses guiding block 12, is taking blood position (to pay attention to revealing Foresight out), and foresight alignment target is made to take blood point, then the right hand presses left pressing section 54 and right pressing section 44, left pressing section 54 It drives right shifting block 53 to move to right, and stirs left handhold 311 and move right, while right pressing section 44 drives left shifting block 43 to move to left, and dial It moves right handhold to move downward, when the inner wall of left shifting block 43 is located at the left side of limited block 211 and right 53 inner wall stirred is located at limited block When 211 right side, limited block 211 is no longer influenced by obstruction, and pressure spring 7 restores to push limited block movement when nature, when limited block 211 When being in contact with left interconnecting piece, takes blood end 21 to drive hose movement to maximum distance, led at this point, the needle point at blood end 21 is taken to be exposed to Draw channel outlet, and be inserted into target and take at blood point, in terms of the visual angle perpendicular to 12 bottom surface of guiding block, foresight is projected on target and takes blood At point, then adhesive tape is bonded in, blood position is taken to have enough to meet the need, guiding block 12 is fixed.After taking blood, adhesive tape is torn, edge takes blood It holds axis direction to transfer to guiding block, after taking blood needle tubing blood residual volume to be suitable for, removes negative-pressure vacuum blood test tube.

Compared with prior art, the utility model has the beneficial effects that taking the usage mode of blood needle simple；Using taking blood needle Pipe guide, using taking the process of blood needle more hygienic.

The utility model is described in detail above in conjunction with drawings and examples, still, the skill of technical field Art personnel, can also be to each specific in above-described embodiment it is understood that without departing from the purpose of the present invention Parameter changes, and forms multiple specific embodiments, is the common variation range of the utility model, no longer detailed one by one herein It states.

Claims (8)

1. one kind takes blood needle, including takes blood needle tubing, which is characterized in that further include shell, pressure spring, take blood needle tubing lock device, take blood Needle tubing trigger and take blood needle tubing guide；The shell takes blood needle tubing guide to be fixedly connected with described, described to take blood needle tubing It is arranged in the shell through the pressure spring, takes the needle point of blood needle tubing that the guiding channel for taking blood needle tubing guide is set Interior, one end of the pressure spring is connected to the shell, and the other end of pressure spring, which is connected to, takes blood needle tubing, described that blood needle tubing is taken to pass through institute State and blood needle tubing lock device taken to fix, it is described take blood needle tubing trigger for stir it is described take blood needle tubing lock device so that described take Blood needle tubing lock device is formed with take blood needle channel after, the pressure spring makes described blood needle tubing to be taken to move one section along the guiding channel Distance, so as to which the needle point of blood needle tubing is taken to be exposed to the guiding channel.

2. taking blood needle as described in claim 1, which is characterized in that described to take blood needle tubing including taking blood end, exit and connection The hose for taking blood end and exit is equipped with the limited block that diameter is greater than the pressure spring outer diameter at the middle part for taking blood end；It is described Pressure spring is cylindricality pressure spring, and one end is connected to the shell, and the other end is connected to the limited block；It is described to take the blood needle tubing lock device to be The symmetrically arranged left elastic component in blood end and right elastic component, one end of left elastic component is taken to be fixedly connected with the shell around described, The other end of left elastic component is equipped with the right handhold for limited block described in button, one end of right elastic component and the fixed company of the shell It connects, the other end of right elastic component is equipped with the left handhold for limited block described in button.

3. taking blood needle as claimed in claim 2, which is characterized in that described to take blood needle tubing trigger include that left elastic component is stirred Part, right elastic component shifting part, right elastic component shifting part include a left side for left pressing section, right shifting block and connection left pressing section and right shifting block Interconnecting piece is equipped on left interconnecting piece and takes the left through hole in blood end, left shifting block through hole, and left elastic component shifting part is pressed including the right side Portion, left shifting block and the right interconnecting piece for connecting right pressing section and left shifting block are equipped on right interconnecting piece and take the right through hole in blood end, right group Block through hole, left shifting block runs through the left shifting block through hole, for stirring the right handhold to the left, so that right handhold is moved to The left side of the limited block, right shifting block runs through the right shifting block through hole, for stirring the left handhold to the right, so that a left side is taken off Head is moved to the right side of the limited block, described that blood end is taken to take the left through hole in blood end described in and take the right through hole in blood end, when When right handhold is moved to the left side of the limited block, the right through hole in blood end is taken to take blood end to be equipped with gap or be in contact with described, when When left handhold is moved to the right side of the limited block, the left through hole in blood end is taken to take blood end to be equipped with gap or be in contact with described.

4. taking blood needle as claimed in claim 3, which is characterized in that the left pressing section and the shell are integrally formed, described Right pressing section and the shell are integrally formed, and left pressing section and right pressing section are elastomer；Alternatively, being set respectively on the shell There are left interconnecting piece through hole, right interconnecting piece through hole, between the left shifting block through hole and the left pressing section, the left company Socket part runs through the left interconnecting piece through hole, between the right shifting block through hole and the right pressing section, the right interconnecting piece Through the right interconnecting piece through hole.

5. as described in claim 3 or 4 take blood needle, which is characterized in that on the housing be equipped with pressed respectively with the left side The pressing section guide channel that portion, right pressing section cooperate, the left pressing section, right pressing section are respectively protruding into be guided in corresponding pressing section In slot.

6. taking blood needle as claimed in claim 2, which is characterized in that the shell is equipped with and takes blood end guide hole, described to take blood The tail portion setting at end is taking in the guide hole of blood end, when the pressure spring makes described blood needle tubing to be taken to move described one along the guiding channel After section distance, the tail portion for taking blood end, which is still inserted into, to be taken in the guide hole of blood end.

7. taking blood needle as claimed in claim 2, which is characterized in that described to take blood needle tubing guide include guide body, is being guided The bottom surface of body is equipped with adhesive layer, and the guiding channel is located in guide body, and is equipped with inclination angle with the bottom surface of guide body, described to take The axis at blood end is parallel with the axis of the guiding channel.

8. taking blood needle as claimed in claim 7, which is characterized in that be equipped in the two sides of the guide body and be used to form adhesive layer Adhesive tape, the top surface in guide body is provided with the foresight for being used to indicate target position, and the needle point for taking blood needle tubing is exposed to After the guiding channel, the foresight is projected in described take at the needle point of blood needle tubing.