CN218165264U

CN218165264U - Safety venous blood taking needle

Info

Publication number: CN218165264U
Application number: CN202221747553.XU
Authority: CN
Inventors: 邱婷; 祝敏
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2022-12-30
Anticipated expiration: 2032-07-06

Abstract

The utility model discloses a safety type venous blood taking needle, which comprises a hose, wherein two ends of the hose are respectively and fixedly connected with a first sealing connecting pipe and a second sealing connecting pipe, and one end of the hose is fixedly connected with a blood taking needle mechanism through the first sealing connecting pipe; the blood taking needle mechanism comprises a shrinkage tube, a connecting tube, a main sleeve, an adjusting handle mechanism, a telescopic column, a pressing plate, an inner thread rotating ring, a blood taking needle sleeve and a blood taking needle tube, wherein the shrinkage tube is fixedly connected with one end of the main sleeve and a first sealing connecting tube. Safe type vein blood taking needle, be equipped with blood taking needle mechanism, can effectually avoid medical personnel to take place the condition of stabbing before using with abandon when handling the vein blood taking needle, improve medical personnel's security in the blood sampling work to, can guarantee the stability of syringe needle position at the process of taking a blood sample, prevent that the syringe needle position takes place the condition of aversion in the blood sampling, bring better use prospect.

Description

Safety venous blood taking needle

Technical Field

The utility model belongs to the technical field of medical instrument, in particular to safe type vein blood taking needle.

Background

The venous blood taking needle is used for collecting blood samples in the medical examination process, the blood taking needle at the top end of the venous blood taking needle is used for puncturing blood vessels, the tail end transparent hose is connected with the tail needle, the tail needle is wrapped by the rubber hose, the needle cap is sleeved outside the tail needle and used for puncturing a vacuum blood taking test tube, and the blood is sucked into the tube by using negative pressure in the test tube.

However, the existing venous blood taking needle is single in structure, after the venous blood taking needle is used up, a needle head at the front end is usually exposed in the air, and medical workers are often carelessly injured by the needle head in the process of discarding and treating the blood taking needle, so that serious potential safety hazards exist.

Disclosure of Invention

The problem that after the vein blood taking needle is used up, the needle head at the front end is usually exposed in the air, so that medical workers are often carelessly injured by the needle head in the process of discarding and treating the blood taking needle, and serious potential safety hazards exist is solved.

The utility model provides a safety type venous blood taking needle, which comprises a hose, wherein two ends of the hose are respectively and fixedly connected with a first sealing connecting pipe and a second sealing connecting pipe, and one end of the hose is fixedly connected with a blood taking needle mechanism through the first sealing connecting pipe; wherein, blood taking needle mechanism includes shrink tube, connecting pipe, main sleeve, adjustment handle mechanism, flexible post, clamp plate, interior line change, blood sampling needle cover and blood sampling needle pipe, shrink tube and main sleeve's one end and first sealed takeover fixed connection, the other end fixedly connected with connecting pipe of shrink tube, the outer wall symmetry fixedly connected with adjustment handle mechanism of connecting pipe, main sleeve's open end are provided with the rotary slot, and main sleeve's open end is passed through the rotary slot and is rotated with the interior line change and be connected, and the one end fixedly connected with blood sampling needle pipe of interior line change, the one end of interior line change is provided with the ring channel, and the one end of interior line change is passed through the ring channel and can be dismantled with the blood sampling needle cover and be connected.

Preferably, the middle part of the main sleeve is provided with a sliding groove, the middle part of the main sleeve is connected with the adjusting handle mechanism in a sliding mode through the sliding groove, a clamping groove is formed in one end side of the sliding groove, the middle part of the main sleeve is fixedly connected with the telescopic column through a clamping groove, and a pressing plate is fixedly mounted at one end of the telescopic column.

Preferably, the outer wall of the telescopic column is sleeved with a spring, one end of the spring is fixedly connected with the pressing plate, and the other end of the spring is fixedly connected with the clamping groove.

Preferably, the diameter that the shrinkage tube set up is less than the diameter that main sleeve set up, and the outer wall of internal thread swivel is provided with semicircular groove, and the diameter that the blood sampling needle cover set up is greater than the diameter that the blood sampling needle set up.

Preferably, the outer wall of the connecting pipe is provided with an external thread, and the outer wall of the connecting pipe is in threaded connection with the inner thread rotating ring through the external thread.

Preferably, adjustment handle mechanism includes butterfly wing piece, accomodates groove, connecting plate, adhesion sheet and adjustment handle, the one end and the connecting pipe fixed connection of butterfly wing piece, the middle part of butterfly wing piece is provided with accomodates the groove, and the middle part of butterfly wing piece is connected with the connecting plate joint through accomodating the groove, one side fixedly connected with adhesion sheet of connecting plate, the one end fixedly connected with adjustment handle of connecting plate, the other end of butterfly wing piece is provided with the slide opening, and the other end of butterfly wing piece passes through slide opening and adjustment handle sliding connection.

Preferably, the other end of the hose is connected with the blood feeding needle seat through a second sealing connecting pipe, and one end of the blood feeding needle seat is connected with a blood feeding needle tube in a clamping mode.

Compared with the prior art, the utility model provides a safe type blood sampling needle possesses following beneficial effect:

1. this safety type vein blood taking needle, can drive flexible post and the outside extrusion of clamp plate through the bounce of spring, the outside extrusion force of clamp plate can suppress the bottom of adjustment handle mechanism and support, guarantee the stability of shrink tube in placing, then, when needs carry out the blood sampling work to the patient, rotate adjustment handle mechanism from the joint groove to the spout side, after adjustment handle mechanism moves to the spout again it removes to the line change end, adjustment handle mechanism drives the connecting pipe outwards removal in the removal, then, after the outer wall of connecting pipe and the inner wall contact of line change, can drive the connecting pipe outwards to remove through rotating the line change, can guarantee blood sampling needle tubing in use's degree of stability after being connected with the connecting pipe, prevent to take place the condition of inwards moving behind the in-process blood sampling needle tubing atress of blood sampling, then, drive the connecting pipe inwards to move through the line change after the blood sampling finishes, again adjust handle mechanism to first sealed takeover end and put into the joint inslot, just can stably receive in the main sleeve barrel and take over, can avoid the effectual medical personnel of blood sampling to take place the safety in the blood taking place in the operation condition of the puncture.

2. This safe type blood sampling needle drives connecting plate and adhesion sheet through removing the regulation handle and outwards removes, removes the outside that butterfly wing piece was arranged in to the back adhesion sheet, can slightly paste through the adhesion sheet with patient's skin, the effectual stability of blood sampling needle mechanism at the blood sampling in-process that has improved.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 shows a schematic structural view of the present invention;

fig. 2 showsbase:Sub>A schematic view of the structure of the sectionbase:Sub>A-base:Sub>A of the present invention;

FIG. 3 is a schematic view of the blood lancet mechanism of the present invention;

FIG. 4 is a schematic view of a cross-sectional B-B structure of the blood lancet mechanism of the present invention;

fig. 5 shows a schematic structural diagram of the adjustment handle mechanism of the present invention.

In the figure: 1. a hose; 2. a first sealing nozzle; 3. a lancet mechanism; 4. a second sealing connection tube; 5. a blood feeding needle seat; 6. a blood feeding needle tube; 301. a shrink tube; 302. a connecting pipe; 303. a main sleeve; 304. an adjustment handle mechanism; 305. a telescopic column; 306. pressing a plate; 307. rotating the ring by internal threads; 308. a blood collecting needle sleeve; 309. a blood collection needle tube; 3041. a butterfly wing block; 3042. a receiving groove; 3043. a connecting plate; 3044. sticking the sheet; 3045. an adjusting handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the safety type venous blood taking needle comprises a hose 1, the hose 1 plays a role in conveying blood and connecting, two ends of the hose 1 are fixedly connected with a first sealing connecting pipe 2 and a second sealing connecting pipe 4 respectively, the first sealing connecting pipe 2 and the second sealing connecting pipe 4 play a role in sealing and leakage prevention, one end of the hose 1 is fixedly connected with a blood taking needle mechanism 3 through the first sealing connecting pipe 2, through the arrangement of the blood taking needle mechanism 3, the situation that medical workers prick before using and when discarding and treating venous blood taking needles can be effectively avoided, the safety of the medical workers in blood taking work can be improved, in addition, the stability of the needle position can be ensured in the blood taking process, the situation that the needle position is displaced in the blood taking process can be prevented, the safety degree of the blood taking work is improved, the other end of the hose 1 is connected with a blood feeding needle seat 5 through the second sealing connecting pipe 4, one end of the blood feeding needle seat 5 is clamped and connected with a blood feeding needle pipe 6, and the collected blood is discharged through the blood feeding needle pipe 6.

Referring to fig. 3-4, the blood taking needle mechanism 3 includes a contraction tube 301, a connection tube 302, a main sleeve 303, an adjustment handle mechanism 304, a telescopic column 305, a pressing plate 306, an inner thread swivel 307, a blood taking needle sleeve 308 and a blood taking needle tube 309, one end of the contraction tube 301 and one end of the main sleeve 303 are fixedly connected with the first sealing connection tube 2, wherein the diameter of the contraction tube 301 is smaller than that of the main sleeve 303, the other end of the contraction tube 301 is fixedly connected with the connection tube 302, the outer wall of the connection tube 302 is symmetrically and fixedly connected with the adjustment handle mechanism 304, the middle part of the main sleeve 303 is provided with a sliding groove, the middle part of the main sleeve 303 is slidably connected with the adjustment handle mechanism 304 through the sliding groove, one end side of the sliding groove is provided with a clamping groove, the middle part of the main sleeve 303 is fixedly connected with the telescopic column 305 through a clamping groove, one end of the telescopic column 305 is fixedly provided with the pressing plate 306, specifically, the outer wall of the telescopic column 305 is sleeved with a spring, one end of the spring is fixedly connected with the pressing plate 306, the other end of the spring is fixedly connected with the clamping groove, the opening end of the main sleeve 303 is provided with a rotating groove, the opening end of the main sleeve 303 is connected with the inner thread rotating ring 307 through the rotating groove, the connection mode adopts a rotating connection, wherein, the outer wall of the inner thread rotating ring 307 is provided with a semicircular groove, the friction force generated when the outer wall surface of the inner thread rotating ring 307 is contacted with a hand can be improved, the outer wall of the connecting pipe 302 is provided with an external thread, the outer wall of the connecting pipe 302 is connected with the inner thread rotating ring 307 through the external thread, the connection mode adopts a threaded connection, one end of the inner thread rotating ring 307 is fixedly connected with a blood sampling needle tube 309, one end of the inner thread rotating ring 307 is provided with an annular groove, one end of the inner thread rotating ring 307 is detachably connected with the blood sampling needle sleeve 308 through the annular groove, concretely, the diameter of the blood sampling needle sleeve 308 is larger than the diameter of the blood sampling needle tube 309, when the blood sampling needle is in a standing state, the telescopic column 305 and the pressing plate 306 can be driven to extrude outwards by the resilience of the spring, the outward extrusion force of the pressing plate 306 can press and support the bottom end of the adjusting handle mechanism 304, the stability of the contraction tube 301 during placement is ensured, then, when the blood sampling work needs to be performed on a patient, the adjusting handle mechanism 304 rotates from the clamping groove to the sliding groove side, the adjusting handle mechanism 304 moves to the end of the inner thread rotating ring 307 after moving into the sliding groove, the adjusting handle mechanism 304 drives the connecting tube 302 to move outwards in the moving process, then, after the outer wall of the connecting tube 302 is in contact with the inner wall of the inner thread rotating ring 307, the connecting tube 302 can be driven to move outwards by rotating the inner thread rotating ring 307, the stability of the blood sampling needle tube 309 in the use can be ensured after the outer wall of the connecting tube 302 is connected with the connecting tube 302, the situation that the blood sampling needle tube 309 moves inwards after being stressed is prevented, then, the situation that a medical staff can move into the main blood sampling needle tube 309 after the blood sampling needle tube is pressed by rotating backwards to the inner thread rotating ring 307, the adjusting handle mechanism can be placed into the sealing sleeve 309, and the blood sampling needle can be used for improving the safety of medical staff, and the situation that the blood sampling needle can be discarded after the blood sampling needle can be effectively processed by the medical staff can be discarded.

Referring to fig. 5, the adjusting handle mechanism 304 includes two butterfly wing blocks 3041, a receiving groove 3042, a connecting plate 3043, an adhesive sheet 3044 and an adjusting handle 3045, one end of the butterfly wing block 3041 is fixedly connected to the connecting tube 302, the receiving groove 3042 is disposed at the middle of the butterfly wing block 3041, the middle of the butterfly wing block 3041 is connected to the connecting plate 3043 through the receiving groove 3042 in a clamping manner, one side of the connecting plate 3043 is fixedly connected to the adhesive sheet 3044, one end of the connecting plate 3043 is fixedly connected to the adjusting handle 3045, the other end of the butterfly wing block 3041 is provided with a sliding hole, and the other end of the butterfly wing block 3041 is slidably connected to the adjusting handle 3045 through the sliding hole.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. Safe type blood taking needle, its characterized in that: the blood taking needle mechanism comprises a hose (1), wherein a first sealing connecting pipe (2) and a second sealing connecting pipe (4) are fixedly connected to two ends of the hose (1) respectively, and one end of the hose (1) is fixedly connected with a blood taking needle mechanism (3) through the first sealing connecting pipe (2);

wherein, blood taking needle mechanism (3) is including shrink tube (301), connecting pipe (302), main sleeve (303), adjustment handle mechanism (304), flexible post (305), clamp plate (306), internal thread change (307), blood sampling needle cover (308) and blood sampling needle tubing (309), shrink tube (301) and the one end and the first sealed takeover (2) fixed connection of main sleeve (303), the other end fixedly connected with connecting pipe (302) of shrink tube (301), the outer wall symmetry fixedly connected with adjustment handle mechanism (304) of connecting pipe (302), the open end of main sleeve (303) is provided with the turn trough, and the open end of main sleeve (303) is connected with internal thread change (307) rotation through the turn trough, and the one end fixedly connected with blood sampling needle tubing (309) of internal thread change (307), and the one end of internal thread change (307) is provided with the ring channel, and the one end of internal thread change (307) is passed through the ring channel and can dismantle with blood sampling needle cover (308) and be connected.

2. A safety venous blood lancet according to claim 1, characterised in that: the middle part of main sleeve (303) is provided with the spout, and the middle part of main sleeve (303) is through spout and adjustment handle mechanism (304) sliding connection, and the one end side of spout is provided with the joint groove, and draw-in groove and flexible post (305) fixed connection are passed through to the middle part of main sleeve (303), and the one end fixed mounting of flexible post (305) has clamp plate (306).

3. A safety venous blood lancet according to claim 2, characterised in that: the outer wall of flexible post (305) has cup jointed the spring, the one end and the clamp plate (306) fixed connection of spring, the other end and the joint groove fixed connection of spring.

4. A safety venous blood lancet according to claim 1, characterised in that: the diameter of the contraction tube (301) is smaller than that of the main sleeve (303), the outer wall of the inner thread rotating ring (307) is provided with a semicircular groove, and the diameter of the blood collection needle sleeve (308) is larger than that of the blood collection needle tube (309).

5. A safety venous blood lancet according to claim 1, characterised in that: the outer wall of the connecting pipe (302) is provided with an external thread, and the outer wall of the connecting pipe (302) is in threaded connection with the inner thread rotating ring (307) through the external thread.

6. A safety venous blood lancet according to claim 1, characterised in that: the adjusting handle mechanism (304) comprises a butterfly wing block (3041), a receiving groove (3042), a connecting plate (3043), an adhesive sheet (3044) and an adjusting handle (3045), wherein one end of the butterfly wing block (3041) is fixedly connected with a connecting pipe (302), the receiving groove (3042) is formed in the middle of the butterfly wing block (3041), the middle of the butterfly wing block (3041) is connected with the connecting plate (3043) in a clamping mode through the receiving groove (3042), the adhesive sheet (3044) is fixedly connected to one side of the connecting plate (3043), the adjusting handle (3045) is fixedly connected to one end of the connecting plate (3043), a sliding hole is formed in the other end of the butterfly wing block (3041), and the adjusting handle (3045) are connected in a sliding mode through the sliding hole in the other end of the butterfly wing block (3041).

7. A safety venous blood lancet according to claim 1, characterised in that: the other end of the hose (1) is connected with a blood feeding needle seat (5) through a second sealing connecting pipe (4), and one end of the blood feeding needle seat (5) is connected with a blood feeding needle tube (6) in a clamping mode.