CN209123063U - A kind of syringe pump syringe - Google Patents

Abstract

The utility model provides a kind of syringe pump syringe, belong to the field of medical instrument technology, including syringe, piston and push rod, the piston is set in the syringe, and piston syringe inner wall described in the promotion lower edge of the push rod moves, the syringe is hollow and is in discount vibram outlet shape structure, and the discount vibram outlet shape structure includes the first joint face and the second joint face, first joint face is arc surface, and the second joint face is plane；The piston is the matched discount vibram outlet shape solid construction of syringe with the discount vibram outlet shape structure, and the piston is close to the inner wall of syringe, and the push rod is connect with the piston；The front end of the syringe is connected with the syringe needle for injection.The utility model is by setting discount vibram outlet shape for syringe, when being used for syringe pump, facilitate label be sticked and the accurate acquisition of label information.

Description

A kind of syringe pump syringe

Technical field

The utility model relates to medical instruments field more particularly to a kind of syringe pump syringes.

Background technique

Precision is higher when syringe pump with low capacity due to being administered, the capacity that makes up a prescription is more flexible, more simple process it is desk-top place, The features such as stream velocity fluctuation is smaller is widely used in medical treatment.In actual use, be mainly used for as cardiology department, department of anesthesia, Gynemetrics, paediatrics/paediatrics of living again, Emergency Medical Dept., severe section, oncology and Department of B urn.

However in actual use, the usually drug of syringe sucking doctor's advice amount, then gripping apparatus grips in syringe pump The injection port of firmly syringe, syringe pump and syringe connects, and opens syringe pump, and syringe pump controls syringe and realizes infusion.

However when syringe pump clamps syringe, columnar syringe can be clamped all, even if exposed is also circular arc Shape structure is exposed, and label is generally affixed on syringe.For arc-shaped structure, label paper can also be pasted with arc-shaped structure If.Arc-shaped structure compares bending, is easy shield portions label, meanwhile, arc-shaped structure is easier to roll, and even results in entire Label paper is clamped device and blocks, cause medical staff can not information on accurate discrimination label paper, and then can not accurately check The information such as bed label, name, patient injection medical fluid title, injection time or the injection flow velocity of patient, to the work of medical staff Bring great inconvenience.Meanwhile in syringe pump infusion, general flow velocity is slower, and injection time is longer, if cannot be accurate The information such as medical fluid information and flow velocity are checked, malpractice hidden danger is be easy to cause.Using the patient of syringe pump, the state of an illness is generally required Strict control, once it will cause malpractice when serious because injecting liquid drug is inaccurate.

In the prior art, syringe is cylindrical shape, and surface smoother is easy pressing from both sides since frictional force is small after clamping It holds in device and rolls, cause infusion process unstable.

Summary of the invention

The purpose of this utility model is that, when being used for syringe pump, label is sticked by the improvement to syringe cylinder structure In planar structure, improved syringe is not easy to roll, and label paper always can be high-visible, improves the work of medical staff Efficiency.

Realize that the utility model aim technical solution is as follows:

A kind of syringe pump syringe, including syringe, piston and push rod, the piston are set in the syringe, and The movement of piston syringe inner wall described in the promotion lower edge of the push rod, the syringe is hollow and is in discount vibram outlet shape structure, described Discount vibram outlet shape structure includes the first joint face and the second joint face, and first joint face is arc surface, and the second joint face is plane；

The piston is the matched discount vibram outlet shape solid construction of syringe with the discount vibram outlet shape structure, and the piston is close to syringe Inner wall, the push rod connect with the piston；

The front end of the syringe is connected with the syringe needle for injection.

Further, the area of the first joint face of the arc surface is the half of the area of a circle to 3/4ths.

Further, the push rod periphery extends to form several supporters different in size, and the supporter is far from push rod One end be close to the inner wall of the syringe.

It further, further include the sleeve being sheathed on the syringe, the sleeve is the knot to match with the syringe Structure, the sleeve are slided along the outer wall of the syringe, the one end of the push rod far from piston and the sleeve connection.

Further, one end that the sleeve is connect with the push rod extends inwardly to form connector, and the push rod is inserted Enter in the connector, with the sleeve connection.

Further, the two sides of the sleeve are symmetrically arranged with sealing element, and the sealing element is set between sleeve and syringe, when When the sleeve is slided along syringe, the sealing element realizes the sealing between sleeve and syringe.

Further, the rear end of the syringe is equipped with retaining ring, and the retaining ring is arranged and is fixed on syringe, the sleeve two The distance between sealing element of side is L, and the internal diameter of the retaining ring is greater than L.

Further, handle is additionally provided at the connector of the sleeve.

Further, the handle is T-type structure, and the T-type structure includes hand-held part and interconnecting piece, the interconnecting piece It is connect respectively with the hand-held part and the connector.

Compared with prior art, the utility model has the beneficial effects that

In the utility model, by the way that syringe is changed to the structure that cross section is discount vibram outlet shape, on the one hand, be not easy to roll, therefore infuse It penetrates after pump clamps syringe, syringe is not easy to roll, and then entire infusion process is stablized；On the other hand, discount vibram outlet shape side is Label is sticked in planar structure by planar structure, and arc surface is clamped on clamping device, facilitates observation label information, Improve the accuracy of medical staff's working efficiency and information verification.

In the utility model, no matter clamping device be located at where, discount vibram outlet shape structure has plane always, and then conveniently It is directly obtained label information.If it is cylindrical shape, then since label is attached on arc surface, a word can arrive multiple faces completely, Medical staff needs multiple confirmation message in infusion, and multiple angles may be needed to go to distinguish label information when confirmation every time, made It uses very inconvenient.

Detailed description of the invention

Fig. 1 is a kind of structural scheme of mechanism of syringe pump syringe provided by the utility model；

Fig. 2 is the sectional view in the face A-A in Fig. 1 provided by the utility model；

Fig. 3 is the sectional view in the face B-B in Fig. 1 provided by the utility model；

Fig. 4 is the sectional view of syringe provided by the utility model；

Fig. 5 is the structural schematic diagram of sleeve provided by the utility model；

Fig. 6 is the structural schematic diagram of embodiment 4 provided by the utility model；

In figure:

1, syringe；2 pistons；3, push rod；4, sleeve；5, sealing element；6, handle；7, clamping device；8, catching device；9, it controls System processed；10, display system；11, the first joint face；12, the second joint face；13, syringe needle；14, retaining ring；15, supporter；16, Connector.

Specific embodiment

The utility model is described in detail in each embodiment shown in reference to the accompanying drawing, but it should be stated that, These embodiments are not limitation of the utility model, those of ordinary skill in the art according to these embodiments made by function Energy, method or equivalent transformation or substitution in structure, belong within the protection scope of the utility model.

In the description of the present embodiment, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the invention and simplifies description, rather than indicate Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand For the limitation to the invention.

In addition, term " first ", " second ", " third " etc. are used for description purposes only, it is not understood to indicate or imply Relative importance or the quantity for implicitly indicating indicated technical characteristic.The feature of " first ", " second " etc. is defined as a result, It can explicitly or implicitly include one or more of the features.In the description of the invention, unless otherwise indicated, The meaning of " plurality " is two or more.

Term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to removable Connection is unloaded, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be in Between medium be indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, can pass through Concrete condition understands concrete meaning of the above-mentioned term in the invention.

Embodiment 1

Referring to shown in attached drawing 1-5, the syringe pump syringe provided in the present embodiment, including syringe 1, piston 2, push rod 3 And syringe needle 13, syringe needle 13 are set to the front end of syringe 1, for being inserted into medicine bottle or human body；It is pushed to realize, piston 2 is set It is placed in syringe 1, in use, pushing push rod 3, and then piston 2 moves under the promotion of push rod 3 along 1 inner wall of syringe.Referring to attached drawing Shown in 2, in the present embodiment, label is observed for convenience, sets hollow structure for syringe 1, the cross section of the hollow structure is in Discount vibram outlet shape structure, above-mentioned discount vibram outlet shape structure includes the first joint face 11 and the second joint face 12, wherein the first joint face 11 is Arc surface, the second joint face 12 are plane；Syringe 1 in the present embodiment is that a columnar structured lateral edge is axially cut one piece And it is formed.

Compared with existing cylindrical shape syringe 1, the syringe 1 in the present embodiment is the structure that arc surface adds plane to constitute, In, arc-shaped the first joint face 11 forms accommodating chamber, for placing piston 2, and 12 conduct of the second joint face of planar structure Closing device closes the side of accommodating chamber, forms the closed cavity body structure in periphery.Since the contour structures of syringe 1 are sent out It is raw to change, in use, the gripping apparatus grips accommodating chamber one side of syringe pump, and the second joint face 12 is exposed, on the one hand, label paper Etc. being easy smooth stickup, on the other hand, in planar structure, label information facilitates confirmation.

In the present embodiment, so-called plane is that the face of square when label paper is sticked, is directly sticked compared with cambered surface, nothing It need to be sticked around the radian of cambered surface, facilitate stickup；After label paper is sticked around cambered surface, acquisition of information is inconvenient, reader It needs to be spliced around multiple directions, label information is spliced completely, or by cylindrical tube multiple rotary, carry out information differentiating.

Wherein, so-called arc surface can also be arch, using domes, with cambered, facilitate and accommodate piston 2, and Facilitate clamping.Domes can be transmitted to this power when clamping and being pressurized adjacent part and resist the power that arch distributes enough Bear bigger pressure.So the strength that arch can bear is heavier.With syringe pump in use, needing repeatedly clamping injection repeatedly Device, syringe needs multiple stress, and then the arc surface of syringe pump clamping selects such structure, is able to extend entire syringe 1 Service life have the characteristics that long service life, crushing resistance are good relative to cylindrical structure.

In the present embodiment, the area of the first arc-shaped joint face 11 be the entire area of a circle half to four/ Three.It when arc surface is too small, is not easy to clamp, radian is too small, is easy to run out of clamping device, it has not been convenient to the use of syringe pump, even Syringe is caused to run out of, infusion is interrupted；And arc surface it is too big when, label paper can not completely be sticked, be easy to appear label identification not Just the problem of.

Embodiment 2

Referring to shown in attached drawing 1-2, as the further improvement of above-described embodiment, in the present embodiment, since 1 structure of syringe is sent out It is raw to change, in order to cooperate syringe 1, several supporters 15 different in size are extended to form in 3 periphery of push rod, supporter 15 is separate to be pushed away It is close to the inner wall of the syringe 1 in one end of bar 3.Supporter 15 plays the role of supporting push rod 3 and syringe 1.Syringe in use, It repeatedly pushes and pulls, due to larger with 1 spacing of syringe in the push-and-pull of push rod 3, therefore stability is poor, is easy to be swung left and right, therefore increases support Body 15, on the one hand, ensure the push-and-pull of stablizing of push rod 3, on the other hand, supporter 15 is clamped in syringe 1 or by other external force When, have the function of reinforcing rib, enhance its crushing resistance, being not easy to be crushed out of shape even crushes.

In the present embodiment, since the structure of syringe 1 changes, push rod 3 is set to the circle of the first joint face 11 of arc surface Heart position, then distance of the push rod 3 apart from syringe 1 differs, therefore needs to carry out various adjustment according to this process, so that branch Support body 15 changes with the change of push rod 3 and 1 distance of syringe.

In the present embodiment, supporter 15 can be wholely set with push rod 3, pass through injection molding using transparent plastic material Etc. techniques be prepared.

In the present embodiment, it also is provided with scale on push rod 3, by the scale on push rod 3, medical staff is facilitated to check medicine Liquid dosage information.In the prior art, without mark scale on the piston push rod 3 of syringe, when medical fluid identification is pasted onto syringe After upper, it is difficult to check the dosage of medical fluid in syringe.In the present embodiment, scale on push rod 3, from push rod 3 far from 2 one End, to push rod 3 close to one end of piston 2, scale is gradually increased since 0.I.e. when there is no sucking medical fluid, 0 quarter on push rod 3 The one end spent with syringe 1 far from syringe needle 13 is equal；When sucking 5ml medical fluid, 3 upper piston push rod 3 of push rod is close to syringe needle 13 to pushing away Bar 3 close to 5ml scale with, directly observation can be seen that scale 5ml；And when syringe injects 2ml drug, 3 court of push rod It is moved to syringe needle 13, at this point, one end end face equal scale for 3ml of the 3 high scale push rod 3 of push rod far from piston 2 and push rod 3 are remote One end end face from piston 2 is equal；I.e. directly by push rod 3 and push rod 3 far from the parallel graduation mark in piston 2 one end end face Learn the liquid volume of output.

Embodiment 3

Referring to shown in attached drawing 1-3, as the further improvement of above-described embodiment, in the present embodiment, in order to avoid push rod 3 with And piston 2 is infected by the external world, further includes the sleeve 4 being sheathed on the syringe 1, sleeve 4 is the structure to match with syringe 1, I.e. sleeve 4 is also discount vibram outlet shape structure, can be slided along the outer wall of syringe 1, one end in the present embodiment, by push rod 3 far from piston 2 It is connect with the sleeve 4.In use, sleeve 4 also can edge under the action of push rod 3 when the Level Promoting along syringe 1 of push rod 3 Syringe 1 move horizontally, when 3 part of push rod is drawn out, be in syringe 1 it is outer by it is exposed when, sleeve 4 is set in 3 periphery of push rod, keeps away Exempt from push rod 3 to contact with the external world, realizes the protection to push rod 3.

Referring to shown in attached drawing, in the present embodiment, connects, extend internally in one end that sleeve 4 is connect with push rod 3 for convenience Connector 16 is formed, push rod 3 is inserted into the connector 16, is connect with sleeve 4.Due to the presence of connector 16, so that pushing away The junction of bar 3 and sleeve 4 is to be tightly connected, and ensure that junction does not have the entrance such as bacterium, so that it is to push rod 3 It protects more comprehensive.In the present embodiment, by the sleeve 4 of the outside setting sealing of the syringe 1 of syringe, make the piston of syringe 2 with push rod 3 during drawing drug, with outside air isolation, so as to avoid the bacterium in air to piston 2 and push rod 3 pollution, meanwhile, increased connector 16 is not only convenient for push rod 3 and is inserted directly into, and also ensures this implementation of the sealing of junction In example, push rod 3 can be directly molded at the connector 16 being fixed on sleeve 4 by techniques such as injection moldings.

In the present embodiment, sleeve 4 can also be columnar structured.

Referring to shown in attached drawing 1-3, as a further improvement, being also symmetrically arranged in the present embodiment in the two sides of the sleeve 4 Sealing element 5, sealing element 5 are set between sleeve 4 and syringe 1, and when sleeve 4 is slided along syringe 1, sealing element 5 realizes sleeve 4 and needle Sealing between cylinder 1.

In the present embodiment, sealing element 5 can be prepared using rubber material, before use, by techniques such as injection moldings, in advance Sealing element 5 made of rubber is moulded in the end of sleeve 4.

By increasing sealing element 5 and the connector 16 extended to form etc., so that sleeve 4 forms the knot of both ends part sealing Structure, i.e. sleeve 4 are sealed with syringe 1 and 3 junction of push rod, in 3 use process of push rod, always in sleeve 4, and then are pushed away Bar 3 and the piston 2 connecting with push rod 3 are in sealing space, good airproof performance contactless with the external world always, pollutant be difficult into Enter.

In order to avoid 3 transition of push rod pull-out, the present embodiment can also be equipped with retaining ring 14 in the rear end of syringe 1, at this time will gear Circle 14 is arranged and is fixed on syringe 1, and the distance between sealing element 5 of 4 two sides of sleeve is L, and L is naturally larger than the outer diameter of syringe 1, At this point, the outer diameter of retaining ring 14 is greater than L, by retaining ring 14, the function of preventing sleeve 4 from falling off from syringe 1 is realized.The present embodiment In, retaining ring 14 can be rubber material or the plastic material with 1 same material of syringe.

In the present embodiment, it is generally used for the injection of 20ml and 50ml large dosage, at this point, 12 area of the second joint face is more Greatly, label is easier to be sticked.

Embodiment 4

As the further improvement of embodiment 3, in the present embodiment, referring to shown in attached drawing 1-2, at the connector of sleeve 4 On be additionally provided with handle 6.By handle 6 in use, facilitate and push sleeve 4, realizes that it drives the movement of push rod 3.

Preferably, handle 6 is T-type structure, and the T-type structure includes hand-held part and interconnecting piece, the interconnecting piece difference It is connect with the hand-held part and the connector.Sleeve 4 can be fixed on syringe pump by the interconnecting piece in the present embodiment, Clamping device i.e. on syringe pump can realize the clamping to entire syringe 1 by the portion of being clamped and connected.

In order to improve comfort, in the present embodiment, massage bead can also be set on the hand-held part of handle 6.User is according to hand When holding portion's promotion sleeve 4, massage bead plays the role of massage.

As shown in fig. 6, syringe pump in the prior art carries clamping device 7 and catching device 8, and when usually used, clamping The clamping syringe 1 of device 7, and catching device 8, catch push rod 3.For example a variety of syringe pumps that name first medical instrument net in Shanghai provides are equal It can.

When the syringe in the present embodiment is used for syringe pump, 1 front end of syringe is located at the clamping of one end end outside sleeve 4 In clamping device 7, catching device 8 is caught on the interconnecting piece of handle 6, due to the end shape of interconnecting piece, hand-held part and sleeve 4 At two symmetrical trough body structures, therefore the clamp on catching device 8 is stuck in above-mentioned trough body structure, and then prevents catching device 8 in pull handle 6, and handle 6 falls off from catching device 8.

By the control system 9 of manipulation syringe pump in use, make what is shown in the display system 10 of syringe pump to need to suck Injection volume and injection flow velocity etc., and then reach the demand of user, then manipulate control system 9 again, make card Grabbing device 8 pulls handle 6 of the catching on catching device 8 to move, while the clamping device 7 for clamping syringe 1 is fixed, makes to cover Cylinder 4 under the pulling function of handle 6 with 1 relative motion of syringe, so that piston 2 be made to transport under the induced effect of sleeve 4 with push rod 3 It is dynamic, and then syringe is sucked in syringe 1.

In the utility model, by changing the structure of syringe 1, increases multiple schemes such as sleeve 4, not only facilitate syringe pump In use, on the clamping of syringe 1 and syringe 1 label information acquisition, simultaneously, it is ensured that in use, piston 2 and push rod 3 Sterile sealing environment, improve safety.

Tool of the series of detailed descriptions listed above only for the feasible embodiment of the utility model Body explanation, they are all without departing from made by the utility model skill spirit not to limit the protection scope of the utility model Equivalent implementations or change should be included within the scope of protection of this utility model.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (9)

1. a kind of syringe pump syringe, including syringe (1), piston (2) and push rod (3), the piston (2) is set to described In syringe (1), and the piston (2) syringe (1) inner wall described in the promotion lower edge of the push rod (3) moves, which is characterized in that The syringe (1) is hollow and is in discount vibram outlet shape structure, and the discount vibram outlet shape structure includes the first joint face (11) and the second joint face (12), first joint face (11) is arc surface, and the second joint face (12) is plane；

The piston (2) is the matched discount vibram outlet shape solid construction of syringe (1) with the discount vibram outlet shape structure, and the piston (2) is tight The inner wall of syringe (1) is pasted, the push rod (3) connect with the piston (2)；

The front end of the syringe (1) is connected with the syringe needle (13) for injection.

2. a kind of syringe pump syringe according to claim 1, which is characterized in that the first joint face of the arc surface (11) area is the half of the area of a circle to 3/4ths.

3. a kind of syringe pump syringe according to claim 1, which is characterized in that push rod (3) periphery extends shape At several supporters (15) different in size, the supporter (15) is close to the interior of the syringe (1) far from the one end of push rod (3) Wall.

4. a kind of syringe pump syringe described in one of -3 according to claim 1, which is characterized in that further include be sheathed on it is described Sleeve (4) on syringe (1), the sleeve (4) are the structure to match with the syringe (1), and the sleeve (4) is along the needle The outer wall sliding of cylinder (1), the push rod (3) connect far from the one end of piston (2) with the sleeve (4).

5. a kind of syringe pump syringe according to claim 4, which is characterized in that the sleeve (4) and the push rod (3) one end connected extends inwardly to form connector (16), and the push rod (3) is inserted into the connector (16), with the set Cylinder (4) connection.

6. a kind of syringe pump syringe according to claim 5, which is characterized in that the two sides of the sleeve (4) are symmetrical Equipped with sealing element (5), the sealing element (5) is set between sleeve (4) and syringe (1), when the sleeve (4) is sliding along syringe (1) When dynamic, the sealing element (5) realizes the sealing between sleeve (4) and syringe (1).

7. a kind of syringe pump syringe according to claim 6, which is characterized in that the rear end of the syringe (1) is equipped with Retaining ring (14), the retaining ring (14) are arranged and are fixed on syringe (1), between the sealing element (5) of sleeve (4) two sides away from It is greater than L from the internal diameter for L, the retaining ring (14).

8. a kind of syringe pump syringe according to claim 5, which is characterized in that the connector of the sleeve (4) (16) handle (6) are additionally provided at.

9. a kind of syringe pump syringe according to claim 8, which is characterized in that the handle (6) is T-type structure, The T-type structure includes hand-held part and interconnecting piece, the interconnecting piece respectively with the hand-held part and the connector (16) Connection.