CN211609811U

CN211609811U - Protective device for blood taking needle

Info

Publication number: CN211609811U
Application number: CN202020078089.4U
Authority: CN
Inventors: 姚丽; 云云; 孙瑾
Original assignee: Second Peoples Hospital of Lianyungang of Oncology Hospital of Lianyungang
Current assignee: Second Peoples Hospital of Lianyungang of Oncology Hospital of Lianyungang
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-10-02
Anticipated expiration: 2030-01-15

Abstract

The utility model discloses a protective device of a blood taking needle, which belongs to the technical field of medical instruments and comprises a puncture needle, wherein the tail part of the puncture needle is penetrated and communicated with a blood guiding hose, a connecting sleeve is sleeved outside the joint of the puncture needle and the blood guiding hose, a needle handle is fixedly connected outside the connecting sleeve, a thick sheath and a thin sheath are sleeved outside the blood guiding hose, the thin sheath is positioned inside the thick sheath, a slider is fixedly connected to the front side and the rear side of the thin sheath, chutes matched with the slider are respectively arranged on the front side and the rear side of the inner wall of the thick sheath, and a first fixing ring and a second fixing ring are respectively and fixedly connected to one side of the back of the thick sheath and; after blood sampling is finished, the puncture needle is pulled out, the thin sheath is pushed out leftwards, the sliding block slides out of the sliding groove, the thin sheath is stretched, the thin sheath and the thick sheath move leftwards, and the thick sheath and the thin sheath are wrapped outside the puncture needle, so that the needle head is prevented from contacting medical staff.

Description

Protective device for blood taking needle

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a protective device for a blood taking needle.

Background

The blood taking needle is widely used clinically, and when the blood taking needle is used, a steel needle is punctured into a blood vessel, and then the extension tube is connected with a negative pressure vacuum blood taking needle to take blood. The existing blood taking needles are all steel needles exposed outside, when medical staff operate the blood taking needles, the blood taking needles are easy to prick hands, and when the blood taking needles are not properly treated, the blood taking needles can be pricked by the needlepoints of the steel needles to cause infection, and if the patients are SARS, AIDS, hepatitis B or other infectious diseases, the cross infection causes more serious consequences.

The existing protection device for the blood taking needle is usually arranged on a needle handle, so that a puncture needle and a vein vessel cannot be kept on the same horizontal line when medical workers take blood from the vein, and the oblique insertion angle of the puncture needle is too large, so that the needle head easily punctures the vein vessel and punctures the vein vessel into other subcutaneous tissues, and a patient feels pain and the blood taking difficulty is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a protection device of blood taking needle under the condition of avoiding the pjncture needle to stab medical personnel, reduces the injury that the blood sampling caused to the patient.

The utility model is realized in such a way that the protective device of the blood taking needle comprises a puncture needle, the tail part of the puncture needle is communicated with a blood guiding hose, a connecting sleeve is sleeved outside the joint of the puncture needle and the blood guide hose, a needle handle is fixedly connected outside the connecting sleeve, the right end of the blood guiding hose is provided with a blood collecting vessel, the outer side of the blood guiding hose is sleeved with a thick sheath and a thin sheath, the thin sheath is positioned in the thick sheath, the front side and the rear side of the thin sheath are both fixedly connected with sliding blocks, the front side and the rear side of the inner wall of the thick sheath are both provided with sliding chutes matched with the sliding blocks, the opposite sides of the thick sheath and the thin sheath are respectively and fixedly connected with a first fixing ring and a second fixing ring, a first opening is formed in the upper end of the outer side wall of the thick sheath, and second openings are formed in the upper ends of the outer side walls of the thin sheath and the second fixing ring.

In order to conveniently block up the needle head, as the utility model discloses a protection device for blood taking needle is preferred, the lower extreme fixedly connected with connecting band of second retainer plate, the other end fixedly connected with rubber buffer of connecting band.

In order to collect blood sample conveniently, as the utility model discloses a protector of blood taking needle is preferred, lead the right-hand member fixedly connected with of blood hose and lead the blood needle, lead the blood hose and cup jointed the connecting cylinder with the outside of leading blood needle junction, the right-hand member face fixedly connected with end cover of connecting cylinder, the inner wall threaded connection of end cover has a blood collection pipe, the right-hand member of leading the blood needle runs through the end cover and extends to blood collection pipe's inside.

In order to avoid thin sheath from the left end roll-off of thick sheath, conduct the utility model discloses a protector of blood taking needle is preferred, two the equal fixedly connected with stopper of right-hand member of slider.

In order to facilitate the pulling of the thin sheath, the protecting device of the blood taking needle is preferred, and the outer ring diameter of the second fixing ring is larger than that of the thick sheath.

In order to accommodate the sheath when using the puncture needle and avoid the sheath to slide left and right, as the utility model discloses a protective device of blood taking needle is preferred, the inner circle diameter of thick sheath equals the outer lane diameter of connecting cylinder.

In order to facilitate the sleeving of the thin sheath and the thick sheath on the outer side of the puncture needle, the needle protection device of the blood taking needle is preferred, the thickness of the needle handle is equal to the width of the first opening and the second opening, and the width of the first opening and the second opening is smaller than the diameter of the blood guiding hose.

Compared with the prior art, the beneficial effects of the utility model are that:

1. after blood sampling is finished, the puncture needle is pulled out, the thin sheath is pushed out leftwards, the sliding block slides out of the sliding groove, the thin sheath is stretched, the thin sheath and the thick sheath move leftwards, the needle handle penetrates through the second opening and the first opening and finally contacts with the first fixing ring, the first fixing ring stops moving, and the thick sheath and the thin sheath are wrapped on the outer side of the puncture needle, so that the needle head is prevented from contacting with medical personnel;

2. when the coarse sheath and the fine sheath are wrapped on the outer side of the puncture needle, the left end of the rubber plug is plugged into the fine sheath, and the needle head of the puncture needle is plugged with the rubber plug, so that medical personnel are further protected from being stabbed by the needle head;

3. when medical personnel stretched thin sheath when left, drive the slider and remove left in the spout, when the rightmost end of slider slided to the leftmost end of spout, stopper and spout joint, and then avoided thin sheath to follow the left side roll-off of thick sheath.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a schematic view of the connection between the thick sheath and the thin sheath;

FIG. 3 is a structural view of the thin sheath of the present invention;

fig. 4 is a cross-sectional view of the blood collection tube of the present invention.

In the figure: 1. puncturing needle; 2. connecting sleeves; 201. a needle handle; 3. a blood conducting hose; 4. a coarse sheath; 401. a first retainer ring; 402. a first opening; 5. a thin sheath; 501. a second retainer ring; 502. a second opening; 503. a slider; 504. a limiting block; 6. a connecting belt; 601. a rubber plug; 7. a connecting cylinder; 701. a blood conduction needle; 702. an end cap; 8. and collecting blood vessels.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a protector of blood taking needle, including pjncture needle 1, the afterbody of pjncture needle 1 runs through the intercommunication and has led blood hose 3, adapter sleeve 2 has been cup jointed with the outside of leading blood hose 3 junction to pjncture needle 1, the outside fixedly connected with needle handle 201 of adapter sleeve 2, blood collection pipe 8 is installed to the right-hand member of leading blood hose 3, thick sheath 4 and thin sheath 5 have been cup jointed in the outside of leading blood hose 3, thin sheath 5 is located the inside of thick sheath 4, the equal fixedly connected with slider 503 in both sides around thin sheath 5, both sides all seted up with slider 503 assorted spout around the 4 inner walls of thick sheath, thick sheath 4 and thin sheath 5 one side of carrying on the back mutually do not fixedly connected with first retainer plate 401 and second retainer plate 501, first opening 402 has been seted up to the upper end of thick sheath 4 lateral walls, second opening 502 has all been seted up to the upper end of thin sheath.

In this embodiment: extract pjncture needle 1 after the blood sampling is accomplished, release thin sheath 5 left, the slider 503 slides out from the spout, and then tensile thin sheath 5, remove thin sheath 5 and thick sheath 4 left again, needle handle 201 passes second opening 502 and first opening 402 and contacts with first retainer plate 401 at last to first retainer plate 401 stops to remove, and then thick sheath 4 wraps up in the pjncture needle 1 outside with thin sheath 5, thereby avoids syringe needle and medical personnel to contact.

As a technical optimization scheme of the utility model, the lower extreme fixedly connected with connecting band 6 of second retainer plate 501, the other end fixedly connected with rubber buffer 601 of connecting band 6.

In this embodiment: when thick sheath 4 and thin sheath 5 parcel are in pjncture needle 1 outside, during thin sheath 5 is filled in to the left end of rubber buffer 601 to make pjncture needle 1 syringe needle and rubber buffer 601 peg graft, further protect the syringe needle not stab medical personnel, because second retainer plate 501 is connected through connecting band 6 with rubber buffer 601, thereby the position of fixed whole sheath.

As a technical optimization scheme, the right-hand member fixedly connected with of leading blood hose 3 leads blood needle 701, leads blood hose 3 and has cup jointed connecting cylinder 7 with the outside of leading blood needle 701 junction, and the right-hand member face fixedly connected with end cover 702 of connecting cylinder 7, the inner wall threaded connection of end cover 702 have a blood collection vessel 8, and the right-hand member of leading blood needle 701 runs through end cover 702 and extends to the inside of blood collection vessel 8.

In this embodiment: blood is sucked into the blood collection tube 8 through the blood guide hose 3, then the blood collection tube 8 is screwed off and covered with the tube cap again, and the puncture needle 1 and the end cap 702 are discarded, so that the effect of conveniently collecting blood samples is achieved.

As a technical optimization scheme of the utility model, two sliders 503's the equal fixedly connected with stopper 504 of right-hand member.

In this embodiment: when the medical staff stretches the thin sheath 5 to the left, the sliding block 503 is driven to move to the left in the sliding groove, when the rightmost end of the sliding block 503 slides to the leftmost end of the sliding groove, the limiting block 504 is clamped with the sliding groove, and then the thin sheath 5 is prevented from sliding out from the left side of the thick sheath 4.

As a technical optimization scheme of the utility model, the outer lane diameter of second retainer plate 501 is greater than the outer lane diameter of thick sheath 4.

In this embodiment: when thin sheath 5 is located thick sheath 4 inside, the right side wall of second retainer plate 501 and the left side swing joint of thick sheath 4, and then draw second retainer plate 501 left when needing thin sheath 5 of extension can.

As a technical optimization scheme of the utility model, the inner circle diameter of thick sheath 4 equals the outer lane diameter of connecting cylinder 7.

In this embodiment: when medical personnel carried out blood sample collection, the right-hand member of thick sheath 4 cup jointed with connecting cylinder 7, and then can avoid the sheath whole to remove about leading blood hose 3 outside, influence medical personnel and use pjncture needle 1.

As a technical optimization scheme of the present invention, the thickness of the needle handle 201 is equal to the width of the first opening 402 and the second opening 502, and the width of the first opening 402 and the second opening 502 is smaller than the diameter of the blood guiding soft tube 3.

In this embodiment: the thickness of the needle handle 201 is equal to the width of the first opening 402 and the second opening 502, so that the needle handle 201 can conveniently penetrate through the two openings, and the sheath is positioned on the outer side of the puncture needle 1; since the width of the first opening 402 and the second opening 502 is smaller than the diameter of the blood guiding tube 3, the blood guiding tube 3 can be prevented from sliding out of the first opening 402 and the second opening 502, and the sheath can be fixed outside the blood guiding tube 3.

The working principle is as follows: after blood collection, the puncture needle 1 is pulled out, the thin sheath 5 is pushed out leftwards, the sliding block 503 slides out of the sliding groove, the thin sheath 5 is stretched, the thin sheath 5 and the thick sheath 4 move leftwards, the needle handle 201 penetrates through the second opening 502 and the first opening 402 to be finally contacted with the first fixing ring 401, the first fixing ring 401 stops moving, the thick sheath 4 and the thin sheath 5 are wrapped outside the puncture needle 1, the left end of the rubber plug 601 is plugged into the thin sheath 5, the needle head of the puncture needle 1 is plugged with the rubber plug 601, the needle head is prevented from being contacted with medical personnel, the blood collection tube 8 is unscrewed in a spiral mode and the tube cover is covered again, the puncture needle 1 and the end cover 702 are discarded, and blood collection is achieved.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A protection device for blood taking needles comprises a puncture needle (1), and is characterized in that: the tail of the puncture needle (1) is communicated with a blood guiding hose (3) in a penetrating manner, the connecting sleeve (2) is sleeved on the outer side of the joint of the puncture needle (1) and the blood guiding hose (3), the needle handle (201) is fixedly connected to the outer side of the connecting sleeve (2), the blood collecting vessel (8) is installed at the right end of the blood guiding hose (3), the thick sheath (4) and the thin sheath (5) are sleeved on the outer side of the blood guiding hose (3), the thin sheath (5) is located inside the thick sheath (4), sliders (503) are fixedly connected to the front side and the rear side of the thin sheath (5), chutes matched with the sliders (503) are formed in the front side and the rear side of the inner wall of the thick sheath (4), a first fixing ring (401) and a second fixing ring (501) are fixedly connected to one side of the back of the thick sheath (4) and the thin sheath (5) respectively, a first opening (402) is formed in the upper end of the outer, and second openings (502) are formed at the upper ends of the outer side walls of the thin sheath (5) and the second fixing ring (501).

2. A lancet protection device according to claim 1, wherein: the lower extreme fixedly connected with connecting band (6) of second retainer plate (501), the other end fixedly connected with rubber buffer (601) of connecting band (6).

3. A lancet protection device according to claim 1, wherein: lead right-hand member fixedly connected with of blood hose (3) and lead blood needle (701), lead the outside of blood hose (3) and lead blood needle (701) junction and cup jointed connecting cylinder (7), the right-hand member face fixedly connected with end cover (702) of connecting cylinder (7), the inner wall threaded connection of end cover (702) has blood collection vessel (8), the right-hand member of leading blood needle (701) runs through end cover (702) and extends to the inside of blood collection vessel (8).

4. A lancet protection device according to claim 1, wherein: the right ends of the two sliding blocks (503) are fixedly connected with limiting blocks (504).

5. A lancet protection device according to claim 1, wherein: the diameter of the outer ring of the second fixing ring (501) is larger than that of the outer ring of the thick sheath (4).

6. A lancet protection device according to claim 3, wherein: the diameter of the inner ring of the coarse sheath (4) is equal to the diameter of the outer ring of the connecting cylinder (7).

7. A lancet protection device according to claim 1, wherein: the thickness of the needle handle (201) is equal to the width of the first opening (402) and the second opening (502), and the width of the first opening (402) and the width of the second opening (502) are both smaller than the diameter of the blood guide hose (3).