CN210933144U

CN210933144U - Needle puncture preventing device for infusion needle

Info

Publication number: CN210933144U
Application number: CN201921399770.2U
Authority: CN
Inventors: 田涛
Original assignee: Fuwai Hospital of CAMS and PUMC
Current assignee: Fuwai Hospital of CAMS and PUMC
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-07-07
Anticipated expiration: 2029-08-26

Abstract

The utility model belongs to the technical field of clinical infusion, concretely relates to infusion syringe needle is with preventing syringe needle stab device. The device comprises a fixed slot plate, wherein the slot ends on two sides of the fixed slot plate are both sealed ends; arc-shaped grooves with the groove length direction parallel to the groove length direction of the fixed groove plate are symmetrically and concavely arranged on the groove walls on the two sides of the notch of the fixed groove plate; the device also comprises a protection plate, wherein mounting holes are formed in the positions of the groove walls on the two sides of the fixed groove plate in a penetrating mode along the axis direction of the needle tip part, the cross section appearance of each mounting hole is matched with that of the protection plate so that the protection plate can be inserted into the mounting holes, and the axis of a groove cavity of the protection plate is coaxial with the axis of a groove cavity of the arc-shaped groove; when the two groups of protection plates are inserted along the hole cavity of the mounting hole and generate sliding motion along the insertion direction, the space formed by the two groups of protection plates in a surrounding way forms a placing space for coating the needle tip part. The device can effectively avoid the needle-stick injury condition generated in the needle-pulling and subsequent treatment processes of the transfusion needle head, and is beneficial to clinical use.

Description

Needle puncture preventing device for infusion needle

Technical Field

The utility model belongs to the technical field of clinical infusion, concretely relates to infusion syringe needle is with preventing syringe needle stab device.

Background

The needle stick injury refers to an accidental injury phenomenon caused by being pricked by various needles such as injection needles, puncture needles, suture needles and the like. In hospitals, needle stick injuries have strong harmfulness and serious consequences, can cause the spread of various blood-borne diseases, and are particularly frequently used in the field of clinical transfusion. At present, hospital infusion is a disposable infusion apparatus generally formed by connecting an infusion needle, an infusion tube, an air and liquid filter, a dropper, a dripping speed regulator and the like, and a plastic tube is sleeved at the needle point part of the infusion needle after the assembly of the disposable infusion apparatus is finished, so that the aim of preventing unnecessary injury caused by the fact that the infusion needle pierces a packaging bag when medical staff take the infusion apparatus is fulfilled. However, in actual operation, the medical care personnel do not worry about the needle-stick injury condition of the infusion needle when taking the infusion set, because the infusion needle does not contact the body fluid of the patient yet, the harmfulness does not exist. What medical personnel worried about, it is also common in the field of clinical transfusion, is the condition of needle stick injury that may produce when pulling out the needle and handling the infusion syringe needle: at the moment, the transfusion needle head is polluted by the body fluid of a patient, once a needle stick injury occurs, the wound bleeding and suppuration conditions are often caused, and the infection problem is caused by the disease sources such as AIDS, hepatitis B and the like carried in the body fluid of the patient, so that the self safety of medical care personnel is seriously harmed finally. Although some devices for preventing needle-stick injuries exist at present, the infusion needle is greatly changed according to the infusion needle, the change not only causes the production cost of an infusion apparatus manufacturer to be sharply increased, but also often influences the operation habits of medical workers, and then directly interferes with the normal use of the infusion needle, which is also the reason that most of the existing devices for preventing needle-stick injuries cannot be widely popularized.

Disclosure of Invention

The utility model aims at overcoming the not enough of above-mentioned prior art, provide a infusion syringe needle that rational in infrastructure and practical is with preventing syringe needle stab device, it can regard as the outer pendant of current infusion syringe needle to use, easily installs and uses convenient degree height, can effectively avoid the infusion syringe needle to pull out the produced acupuncture situation of hindering of needle and follow-up processing in-process, does benefit to clinical use.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a transfusion needle is with preventing syringe needle stab wound device which characterized in that: the device comprises a fixed groove plate with a U-shaped groove plate shape, wherein the groove ends on two sides of the fixed groove plate are sealed ends, so that a groove cavity of the fixed groove plate forms an accommodating cavity for inserting a handle part of the infusion needle; arc-shaped grooves with the groove length direction parallel to the groove length direction of the fixed groove plate are symmetrically and concavely arranged on the groove walls on the two sides of the notch of the fixed groove plate, and two groups of arc-shaped grooves on the two groove walls are matched with each other to form a positioning area for clamping and fixing a connecting pipe at the handle part; the device also comprises two groups of protection plates with the shape of a C-shaped groove plate, mounting holes are arranged on the groove walls on the two sides of the fixed groove plate in a penetrating manner along the axis direction of the needle tip part, the cross section shape of each mounting hole is matched with the cross section shape of each protection plate so that the protection plates can be inserted into the mounting holes, and the axes of the groove cavities of the protection plates and the axes of the groove cavities of the arc-shaped grooves are coaxial; when the two groups of protection plates are inserted along the hole cavity of the mounting hole and generate sliding motion along the insertion direction, the space formed by the two groups of protection plates in a surrounding mode forms a placing space for coating the needle tip portion.

Preferably, an insertion end of the protection plate, which is used for being inserted into the mounting hole, is the front end of the protection plate, a positioning bulge is convexly arranged at the outer arc surface of the protection plate close to the rear end, and a positioning concave point is arranged at the corresponding hole wall of the mounting hole; when the protection plate slides along the mounting hole until the space formed by the enclosure of the protection plate forms the arrangement space, the positioning protrusion is clamped into the positioning concave point at the moment so as to limit the current position of the protection plate.

Preferably, the positioning bulges are semicircular salient points or triangular blocks with inclined planes facing the needle tip part, and the positioning salient points are circumferentially and uniformly distributed on the outer arc surface of the protection plate around the axis of the arc-shaped groove.

Preferably, the device also comprises a connecting section for radially connecting the tail ends of the two groups of protection plates so that the two groups of protection plates form an integral structure; the connection section and the two groups of protection plates are matched together to form a groove-shaped structure, and the direction of the groove opening of the groove-shaped structure is the same as the direction of the groove opening of the fixed groove plate.

Preferably, this device is still including being convenient for pull out the board of dialling of needle, dial the board rigid coupling in the outside cell wall department of fixed frid, and dial the parallel needle point portion axis of board face.

Preferably, the groove width of the notch of the fixed groove plate is smaller than the outer diameter of the infusion hose at the infusion needle; the device also comprises a restraint belt used for forming the front end of the fixed groove plate into a closed end, one end of the restraint belt is fixedly connected with the front end face of one side groove edge of the fixed groove plate, and the other end of the restraint belt is provided with a sub-surface of the magic tape so as to form fixed connection cooperation with a mother surface of the magic tape positioned at the outer side groove wall of the other side groove edge of the fixed groove plate.

The beneficial effects of the utility model reside in that:

1) by adopting the proposal, the utility model provides an outer hanging piece with compact and reasonable structure on the premise of not changing the inherent structure of the prior transfusion needle head. In other words, when in actual operation, through directly will the utility model discloses peg graft on infusion plug's handle portion to match through the arc wall and chucking handle portion department connecting pipe, can realize the utility model discloses reliable fixed and benchmark locate function of relative infusion syringe needle. When the needle needs to be pulled out, medical staff naturally pinches the fixed slotted plate covering the handle part and applies force outwards, and the fixed slotted plate can act together with the handle part to pull out the needle tip part of the infusion needle head due to the fact that the slot end of the fixed slotted plate is a closed end. After the needle point portion is extracted and finishes, direct propelling movement guard plate is gone forward along the mounting hole vestibule, until the insert end of guard plate along needle point portion axial extension to cover the needle point portion completely, can realize the cladding function to the needle point portion of pricking easily to avoid appearing the needle stick wound situation after pulling out the needle, its use is very simple and convenient.

In conclusion, the utility model can be used as an external hanging part of the prior transfusion needle head without changing the inherent structure of the prior transfusion device, so the updating cost is extremely low; meanwhile, the whole structure is biased to be fine and thin, and the infusion set is more beneficial to popularization and promotion compared with the traditional acupuncture-prevention structure which needs to change the complex structure of the whole infusion set production line. The utility model discloses easily install and use convenient degree height, can effectively avoid the infusion syringe needle to pull out the produced acupuncture situation of hindering of needle and follow-up processing in-process, do benefit to clinical use.

2) Furthermore, for the protection plate, the protection plate is designed to be matched with the mounting hole at the fixed trough plate on one hand, so that the purpose of pushing the protection plate conveniently is achieved; on the other hand, the needle tip part is covered by two groups of protection plates, so that needle pulling and needle stick injury possibly generated in the subsequent treatment process are avoided. In view of this, the utility model discloses the anchor point design has been carried out to the tail end of guard plate to form the anchor point structure that can fix guard plate current position through protruding collocation location concave point in location, ensure the constancy of self position behind the guard plate cladding needle point portion, in order to avoid in follow-up operation, bump or guard plate and mounting hole cooperation situation such as inseparable because of the mistake, and the guard plate that probably appears falls back and exposes the problem of needle point portion, finally further guarantees the utility model discloses an actual performance. The positioning bulge is a semicircular convex point or a triangular block with an inclined plane facing the needle point part so as to ensure the fixing effect of the anchor point.

3) Furthermore, because the slot cavity of fixed frid needs to supply handle portion to insert, consequently must the guard plate need be divided into two sets of so as to dodge out the slot cavity of fixed frid by the manual. And two sets of guard plates need independent operation when the propelling movement is operated, and obviously there is certain inflexibility in the operation. The utility model discloses a tail end at the guard plate sets up the linkage segment to on the one hand even as an organic whole with two sets of guard plates through the linkage segment, so that another a set of follow-up action that also can produce when a set of guard plate of propelling movement, the flexibility of operation is higher. On the other hand, the connecting section only exists at the tail ends of the two groups of protection plates, so that the connecting section does not interfere with the normal use of structures such as the fixed slot plates, and the use of the connecting section is extremely reliable and stable.

4) The structure of the shifting plate is also one of the key design parts of the utility model. In practice, we find that, in the process of pulling the needle, not only the needle-prick condition can occur due to misoperation, but also the possibility of needle-prick exists in the thin sheet design of the handle part. This is because: because the wing of handle portion is the lamellar structure, is difficult for holding, when medical personnel's hand held the wing of handle portion and outwards applied force, often hold the improper situation that appears handle portion and turn up suddenly because of holding the application of force, and then lead to the pinpoint portion that has been pulled out to jump suddenly and prick medical personnel's hand. Through setting up and dialling the board, will be original to the not easy planar lamellar fin's that holds between the fingers and the application of force application action, change into the action of drawing outward of the three-dimensional board of dialling that changes in the application of force to stop above-mentioned jumper needle problem. In addition, because the vertical setting of dialling the board is in the fixed frid top that the face level was arranged, like this, when pulling out the needle, fixed frid forms the sliding fit of face laminating with patient's skin in fact, and the application of force nature is better, also more does benefit to and pulls out the needle operation.

5) In fact, the final installation form of the utility model can be pre-installed on the transfusion hose of the transfusion needle head during transfusion. Therefore, the needle does not need to be temporarily inserted on site when being pulled out, and the use is more flexible and convenient. When the needle needs to be pulled out, the utility model discloses handle portion department is smoothed out with fingers along the infusion hose again to the uncovered groove end card that utilizes about band to be the fixed frid under the open mode is gone into on the handle portion, later fixes about band again, in order to guarantee the relative handle portion's of fixed frid vallecular cavity state of cup jointing. And finally, applying force according to the flow and executing the pulling-out operation of the needle tip part, and then carrying out the pushing and coating operation of the protection plate relative to the needle tip part, so that the protection plate is very convenient and reliable to use.

Drawings

Fig. 1 is a schematic perspective view of the present invention when two sets of protection plates are independent from each other;

FIG. 2 is a schematic view of the three-dimensional structure of the present invention when two sets of guard plates are connected to form an integrated structure;

FIG. 3 is a front view of the structure shown in FIG. 2;

FIG. 4 is a cross-sectional view of FIG. 2;

fig. 5-6 are the usage status diagrams of the present invention under the structure of fig. 2.

The utility model discloses each reference numeral is as follows with the actual corresponding relation of part name:

a-handle part a 1-connecting tube b-needle tip part c-transfusion hose

10-fixed groove plate 11-arc groove 12-mounting hole

20-protective plate 21-positioning bulge 22-connecting section

30-pulling plate 40-restraint strap

Detailed Description

For the purposes of understanding, the specific structure and operation of the invention is set forth in the following description in connection with the accompanying drawings:

the specific structure of the utility model is shown in figures 1-4, and mainly comprises a fixed slot plate 10 and a protection plate 20. The fixed slot plate 10 is used for realizing reciprocating sliding motion relative to the infusion hose c and sleeving and fixing motion relative to the handle part a; and the protection plate 20 is used for performing a covering function with respect to the needle tip portion b after the fixed slot plate 10 is moved and fixed in place. Wherein:

the shape of the fixed slot plate 10 is shown with reference to fig. 1-3 as a "U" shaped slot plate presenting a connecting tube a1 with its slot opening towards the handle portion a. Since the outer diameter of the coupling tube a1 of the conventional handle portion a is larger than the thickness of the wing of the handle portion a, the arc-shaped grooves 11 shown in fig. 3-4 are provided on both side walls of the groove at the notch position of the fixed groove plate 10, so that the coupling tube a1 shown in fig. 5-6 is clamped by the cooperation of the two sets of arc-shaped grooves 11. Of course, in actual operation, the width of the notch groove of the fixed groove plate 10 should be even smaller than the outer diameter of the infusion hose c of the infusion needle, so that the utility model can be used in advance when the utility model is used for each time, and the utility model can be used as a spare part when the clamping sleeve is used on the infusion hose c. When the needle needs to be pulled out, the utility model is stroked down to the handle part a along the infusion hose c, and the open slot end of the fixed slot plate 10 in the open state is clamped into the handle part a by utilizing the restraint band 40, and then the restraint band 40 is fixed to ensure the sleeving state of the slot cavity of the fixed slot plate 10 relative to the handle part a. Finally, force is applied and the needle point part b is pulled out according to the flow, and then the protection plate 20 is pushed and coated relative to the needle point part b, so that the use is very convenient and reliable.

In the above description of the fixed channel plate 10 and the structures shown in fig. 3-4 and 6, it can be seen that: the front end surface of the fixed slot plate 10 relatively close to the needle tip portion b is provided with a restraint band 40 for forming a front closed end structure of the fixed slot plate 10, and the rear end of the fixed slot plate 10 is directly sealed integrally to form a rear closed end structure of the fixed slot plate 10. Of course, the notch part of the arc-shaped slot 11 of the fixed slot plate 10 should naturally form a slot structure, that is, the arc-shaped slot 11, for the two tube ends of the connecting tube a1 shown in fig. 5-6 to extend out.

Further, in the structure shown in fig. 1-2, the provision of the dial plate 30 is indispensable. The dial plate 30 may be shaped like any plate convenient for operation to apply force axially to the needle tip b. By arranging the poking plate 30, the original force application action on the plane sheet handle part a which is not easy to pinch and apply force can be changed into the three-dimensional outward pulling action of the poking plate 30 which is easy to apply force, so that the problem of needle stick injury caused by needle skipping is avoided. In addition, because the pulling plate 30 is arranged above the fixed groove plate 10, when the needle is pulled out, the fixed groove plate 10 is actually in sliding fit with the skin of the patient to form a surface fit, and unidirectional force application and needle pulling operation are facilitated.

For the guard plate 20, its outer shape takes the form of an arc plate as shown in fig. 1-2. The two sets of shielding plates 20 form a pair of shielding units for covering the needle tip portion b. In operation, the installation holes 12 shown in fig. 1-4 are arranged on the fixed slotted plate 10, so that the purpose of matching and fixing the hole shafts of the protection plate 20 is achieved. When the present invention is clamped and fixed on the infusion tube c or even the handle portion a, the protection plate 20 is in the state shown in fig. 5. After the needle pulling operation is completed, the shielding plate 20 is pushed forward, so that the shielding plate 20 moves forward to completely cover the needle tip portion b as shown in fig. 6. At this time, the positioning protrusions 21 of the protection plate 20 are matched with the predetermined positioning concave points in the mounting holes 12 to lock the protection plate 20, so as to prevent needle-stick injuries. When necessary, as shown in fig. 1, a connecting section a1 for connecting the two sets of protection plates 20 is disposed at the tail end of the protection plate 20, so that the two sets of protection plates 20 can be pushed forward by simultaneous actions, thereby avoiding the operation complexity caused by the independent pushing actions of the two sets of protection plates 20 designed independently, and achieving the purpose of further optimizing the structure.

Claims

1. The utility model provides a transfusion needle is with preventing syringe needle stab wound device which characterized in that: the device comprises a fixed groove plate (10) which is in a U-shaped groove plate shape, wherein the groove ends on two sides of the fixed groove plate (10) are sealed ends, so that a groove cavity of the fixed groove plate (10) forms an accommodating cavity for inserting a handle part of an infusion needle; arc-shaped grooves (11) with the groove length direction parallel to the groove length direction of the fixed groove plate (10) are symmetrically and concavely arranged on the groove walls at the two sides of the notch of the fixed groove plate (10), and two groups of arc-shaped grooves (11) at the two groove walls are matched with each other to form a positioning area for clamping and fixing a connecting pipe at the handle part; the device also comprises two groups of protection plates (20) which are C-shaped groove plate-shaped in appearance, mounting holes (12) penetrate through the groove walls on the two sides of the fixed groove plate (10) along the axial direction of the needle tip part, the cross section appearance of each mounting hole (12) is matched with that of each protection plate (20) so that the protection plates (20) can be inserted into the mounting holes, and the axes of the groove cavities of the protection plates (20) and the axes of the groove cavities of the arc-shaped grooves (11) are coaxial; when the two groups of protection plates (20) are inserted along the hole cavity of the mounting hole (12) and generate sliding motion along the insertion direction, the space formed by enclosing the two groups of protection plates (20) forms a mounting space for covering the needle tip part.

2. The needle stick prevention device for an infusion needle according to claim 1, wherein: an insertion end of the protection plate, which is used for inserting the mounting hole, is the front end of the protection plate (20), a positioning bulge (21) is convexly arranged on the outer arc surface of the protection plate (20) close to the rear end, and a positioning concave point is arranged on the corresponding hole wall of the mounting hole (12); when the protection plate (20) slides along the mounting hole (12) until a space formed by enclosing the protection plate (20) forms the arrangement space, the positioning protrusion (21) is clamped in the positioning concave point, so that the current position of the protection plate (20) is limited.

3. The needle stick prevention device for an infusion needle according to claim 2, wherein: the positioning bulges (21) are semicircular salient points or triangular blocks with inclined planes facing the needle tip part, and the positioning salient points are circumferentially and uniformly distributed on the outer arc surface of the protection plate (20) around the axis of the arc-shaped groove (11).

4. The needle stick prevention device for an infusion needle according to claim 2, wherein: the device also comprises a connecting section (22) which is used for radially connecting the tail ends of the two groups of protection plates (20) so that the two groups of protection plates (20) form an integral structure; the connection section (22) and the two groups of protection plates (20) are matched together to form a groove-shaped structure, and the direction of the groove opening of the groove-shaped structure is the same as the direction of the groove opening of the fixed groove plate (10).

5. The needle-stick prevention device for an infusion needle according to claim 1, 2, 3 or 4, wherein: the device also comprises a shifting plate (30) which is convenient for pulling the needle, wherein the shifting plate (30) is fixedly connected with the outer side groove wall of the fixed groove plate (10), and the surface of the shifting plate (30) is parallel to the axis of the tip part of the needle.

6. The needle stick prevention device for an infusion needle according to claim 5, wherein: the groove width of the notch of the fixed groove plate (10) is smaller than the outer diameter of the infusion hose at the infusion needle head; this device is still including being used for forming restraint band (40) of blind end with the front end of fixed frid (10), the preceding terminal surface of one side slot edge of restraint band (40) rigid coupling in fixed frid (10), the other end of restraint band (40) sets up the child face of magic subsides to constitute the rigid coupling cooperation between the mother face of magic subsides with the outside cell wall department that is located the opposite side slot edge of fixed frid (10).