CN213789206U

CN213789206U - Hemodialysis puncture needle with safety protection function

Info

Publication number: CN213789206U
Application number: CN202022743066.3U
Authority: CN
Inventors: 吴晓芳
Original assignee: Liyang Peoples Hospital
Current assignee: Liyang Peoples Hospital
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-07-27
Anticipated expiration: 2030-11-24

Abstract

The utility model relates to the technical field of medical supplies, a blood puncture needle with safety protection function is disclosed, it is including installation casing, protection hose, pjncture needle and delivery hose, protection hose pipe connection is on the top of carrying the installation casing, and the bottom activity of pjncture needle extends to and carries in the installation casing and be connected with accomodating actuating mechanism, and the protection hose is run through on the top of pjncture needle, and the protection hose movable sleeve establishes in the outside of pjncture needle, and the bottom of carrying the installation casing can be dismantled with delivery hose and be connected, and delivery hose's externally mounted has the end flow clamp accomodate actuating mechanism and include the fixed plate, and fixed plate fixed mounting has seted up the circulation through-hole on the installation casing in the inside of installation casing. The utility model discloses the structure is ingenious, convenient to use, and the protection can be accomodate to the pjncture needle in the inside of protection hose, and the protection hose is direct to contact with patient, avoids the kingpin. And the puncture needle can not hurt medical care personnel when being pulled out.

Description

Hemodialysis puncture needle with safety protection function

Technical Field

The utility model relates to the technical field of medical supplies, especially, relate to a blood puncture needle with safety protection function.

Background

Currently, hemodialysis is one of the kidney replacement treatment modes for patients with acute and chronic renal failure. The method comprises the steps of draining blood in vivo to the outside of the body, passing through a dialyzer consisting of a plurality of hollow fibers, enabling the dialysate of the blood and electrolyte solution with similar body concentration to be inside and outside one hollow fiber, and exchanging substances through dispersion/convection, so as to remove metabolic waste in the body and maintain the balance of electrolyte and acid and alkali; at the same time, the excess water in the body is removed, and the whole process of purified blood reinfusion is called hemodialysis. The arteriovenous fistula pjncture needle need be used to the patient at the hemodialysis in-process, and current arteriovenous fistula pjncture needle is when specifically using, and the syringe needle exposes all the time, does not accomodate the function of protection, can probably give patient's the great injury of tissue when pulling out the needle, also probably causes the injury to medical staff simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model provides a blood puncture needle with safety protection function has solved the problem in the background art.

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

the utility model provides a blood puncture needle with safety protection function, is including installation casing, protection hose, pjncture needle and delivery hose, and protection hose pipe-line connection is on the top of carrying the installation casing, and the bottom activity of pjncture needle extends to and carries in the installation casing and with accomodate actuating mechanism and be connected, and the protection hose is run through on the top of pjncture needle, and the protection hose movable sleeve establishes in the outside of pjncture needle, and the bottom of carrying the installation casing can be dismantled with delivery hose and be connected, and delivery hose's externally mounted has the end flow to press from both sides.

Preferably, accomodate actuating mechanism and include the fixed plate, fixed plate fixed mounting is in the inside of installation casing, the circulation through-hole has been seted up on the installation casing, the threaded rod is all installed in the top both sides of installation casing rotation, the top of threaded rod rotates with the top inner wall of installation casing to be connected, the equal fixedly connected with movable block in both sides that the bottom of pjncture needle is close to two threaded rods, set up threaded hole on the movable block, two movable blocks correspond the outside of screw thread installation at two threaded rods respectively, the bottom of threaded rod extends to the below of fixed plate and the first bevel gear of fixedly connected with, the pivot of level setting is installed in the installation casing rotation, two second bevel gears of outside fixedly connected with of pivot, two second bevel gears and two first bevel gear one-to-ones and intermeshing.

Preferably, one side fixedly connected with of installation casing protects the conduit, and the one end of pivot extends to the outside of installation casing and extends to in the protection conduit and fixedly connected with knob, and the protection conduit is kept away from one side screw thread of installation casing and is installed the lid.

Preferably, accomodate actuating mechanism and include two first montants, the bottom of first montant and the bottom inner wall fixed connection of installation casing, the mounting groove has been seted up on the top of first montant, slidable mounting has the second montant in the mounting groove, the bottom of second montant and the bottom inner wall of mounting groove fixedly connected with reset spring up to now, the equal fixedly connected with sliding block in bottom both sides of pjncture needle, the bottom of two sliding blocks corresponds the top fixed connection with two second montants respectively, one side of installation casing is still slidable mounting has the locating pin, the pjncture needle is close to one side fixedly connected with fixture block of locating pin, the draw-in groove has been seted up on the fixture block, the one end of locating pin extends to in the draw-in groove.

Preferably, the end, away from the fixture block, of the locating pin extends to the outside of the installation shell and is fixedly connected with a pull ring, the inner walls of the two sides of the installation shell are respectively fixedly connected with vertically arranged slide rails, and the two slide blocks are respectively installed on the two slide rails in a corresponding sliding manner.

Preferably, the two sides of the protection hose are symmetrically and fixedly connected with needle wings, and the protection hose and the outer side of the puncture needle are sleeved with protective sleeves.

Preferably, the bottom end of the mounting shell is fixedly connected with a first mounting sleeve, the top end of the conveying hose is connected with the first mounting sleeve in an inserting mode, and the bottom end of the first mounting sleeve is fixedly connected with a second mounting sleeve.

The utility model has the advantages that: through addding and accomodating actuating mechanism, accomodate actuating mechanism and can drive pjncture needle downstream, when pjncture needle downstream, the inside of protection hose can be received to the top needle point position of pjncture needle, withdraws the pjncture needle through accomodating actuating mechanism when pulling out the needle, and the pjncture needle just can be protected by safety like this, and the hose is direct to be contacted with patient, avoids the kingpin. And the puncture needle can not hurt medical care personnel when being pulled out. The utility model discloses the structure is ingenious, convenient to use, and the protection can be accomodate to the pjncture needle in the inside of protection hose, and the protection hose is direct to contact with patient, avoids the kingpin. And the puncture needle can not hurt medical care personnel when being pulled out.

Drawings

Fig. 1 is a front view of the present invention with a safety protection function.

Fig. 2 is an enlarged schematic view of a position a with a safety protection function according to the present invention.

Fig. 3 is a schematic structural view of a blood puncture needle with a safety protection function according to a first embodiment of the present invention.

Fig. 4 is a schematic structural view of a blood puncture needle with a safety protection function according to a second embodiment of the present invention.

Fig. 5 is an enlarged schematic view of the position B of the hemodialysis puncture needle with safety protection function according to the present invention.

Reference numbers in the figures: the device comprises a mounting shell 1, a protective hose 2, a puncture needle 3, a protective sleeve 4, a needle wing 5, a first mounting sleeve 6, a conveying hose 7, a flow stopping clamp 8, a second mounting sleeve 9, a fixing plate 10, a circulation through hole 11, a moving block 12, a threaded rod 13, a first bevel gear 14, a rotating shaft 15, a second bevel gear 16, a knob 17, a protective sleeve 18, a cover 19, a sliding block 20, a sliding rail 21, a second vertical rod 22, a first vertical rod 23, a reset spring 24, a positioning pin 25, a clamping block 26, a clamping groove 27 and a pull ring 28.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

Referring to fig. 1-3, a hemodialysis puncture needle with safety protection function comprises an installation shell 1, a protection hose 2, a puncture needle 3 and a delivery hose 7, wherein the protection hose 2 is connected to the top end of the delivery installation shell 1 through a pipeline, the bottom end of the puncture needle 3 movably extends into the delivery installation shell 1 and is connected with a storage driving mechanism, the top end of the puncture needle 3 penetrates through the protection hose 2, the protection hose 2 is movably sleeved outside the puncture needle 3, the bottom end of the delivery installation shell 1 is detachably connected with the delivery hose 7, a flow stopping clip 8 is installed outside the delivery hose 7, the storage driving mechanism can drive the puncture needle 3 to move downwards, when the puncture needle 3 moves downwards, the top needle point part of the puncture needle 3 can receive the inside of the protection hose 2, the puncture needle 3 is retracted through the storage driving mechanism when the puncture needle is pulled out, so that the puncture needle 3 can be safely protected, the hose is in direct contact with the patient, and needle rollers are avoided. And the puncture needle 3 can not hurt the medical staff when being pulled out.

Example 2

Referring to fig. 1-3, a hemodialysis pjncture needle with safety protection function, including installation casing 1, protection hose 2, pjncture needle 3 and delivery hose 7, protection hose 2 pipe connection is on the top of carrying installation casing 1, the bottom activity of pjncture needle 3 extends to and carries in installation casing 1 and be connected with accomodating actuating mechanism, protection hose 2 is run through to the top of pjncture needle 3, and protection hose 2 movable sleeve establishes the outside at pjncture needle 3, the bottom of carrying installation casing 1 can dismantle with delivery hose 7 and be connected, delivery hose 7's externally mounted has the flow stopping and presss from both sides 8. Accomodate actuating mechanism and include fixed plate 10, fixed plate 10 fixed mounting is in the inside of installation casing 1, circulation through-hole 11 has been seted up on the installation casing 1, threaded rod 13 is all installed in the top both sides of installation casing 1 rotation, the top of threaded rod 13 rotates with the top inner wall of installation casing 1 to be connected, equal fixedly connected with movable block 12 in the both sides that the bottom of pjncture needle 3 is close to two threaded rod 13, set up threaded hole on movable block 12, two movable block 12 correspond the outside of screw thread installation at two threaded rod 13 respectively, the bottom of threaded rod 13 extends to the below of fixed plate 10 and fixedly connected with first bevel gear 14, installation casing 1 internal rotation is installed with the pivot 15 of level setting, two second bevel gear 16 of outside fixedly connected with of pivot 15, two second bevel gear 16 and two first bevel gear 14 one-to-ones and intermeshing, can drive two bevel gear 13 with same bevel gear through second bevel gear 16 and first bevel gear 14's meshing when rotating pivot 15 Step by step rotates, and then can the manual drive pjncture needle 3 elevating movement, reaches the effect of accomodating drive pjncture needle 3. One side fixedly connected with of installation casing 1 protects sleeve 18, and the one end of pivot 15 extends to the outside of installation casing 1 and extends to in protecting sleeve 18 and fixedly connected with knob 17, and rotation pivot 15 that can be convenient through knob 17 uses more conveniently, and one side screw thread that installation casing 1 was kept away from to protect sleeve 18 is installed lid 19, can prevent after lid 19 installs that knob 17 from being touched by the mistake. The bilateral symmetry fixedly connected with needle wing 5 of protection hose 2, needle wing 5 are used for medical personnel to pass through convenient fixed pjncture needle 3 of sticky tape, and the outside cover of protection hose 2 and pjncture needle 3 is equipped with protective sheath 4, and protective sheath 4 can protect pjncture needle 3. The bottom fixedly connected with of installation casing 1 first installation sleeve 6, the top and the first installation sleeve 6 of delivery hose 7 are pegged graft, and the bottom fixedly connected with second installation sleeve 9 of first installation sleeve 6.

Example 3

Referring to fig. 1, fig. 4 and fig. 5, a blood passes through pjncture needle with safety protection function, including installation casing 1, protection hose 2, pjncture needle 3 and delivery hose 7, protection hose 2 pipe connection is on the top of carrying installation casing 1, the bottom activity of pjncture needle 3 extends to carry in the installation casing 1 and is connected with accomodating actuating mechanism, protection hose 2 is run through on the top of pjncture needle 3, and protection hose 2 movable sleeve establishes in the outside of pjncture needle 3, the bottom of carrying installation casing 1 can be dismantled with delivery hose 7 and be connected, delivery hose 7's externally mounted has flow stopping clamp 8. The accommodating driving mechanism comprises two first vertical rods 23, the bottom ends of the first vertical rods 23 are fixedly connected with the inner wall of the bottom end of the mounting shell 1, the top end of each first vertical rod 23 is provided with a mounting groove, a second vertical rod 22 is slidably mounted in the mounting groove, the bottom ends of the second vertical rods 22 and the inner wall of the bottom end of the mounting groove are fixedly connected with a return spring 24 so far, both sides of the bottom end of the puncture needle 3 are fixedly connected with sliding blocks 20, the bottom ends of the two sliding blocks 20 are respectively and correspondingly fixedly connected with the top ends of the two second vertical rods 22, one side of the mounting shell 1 is also provided with a positioning pin 25 in a sliding manner, one side of the puncture needle 3 close to the positioning pin 25 is fixedly connected with a clamping block 26, a clamping groove 27 is formed in the clamping block 26, one end of the positioning pin 25 extends into the clamping groove 27, the return spring 24 is in an elongated state under ordinary times, the top end of the puncture needle 3 is exposed out of the protective hose 2, when the needle needs to be pulled out, the positioning pin 25 is pulled outwards to separate the positioning pin 25 from the clamping groove 27, and the puncture needle 3 can be driven to move downwards to retract into the protective hose 2 through the elastic force of the return spring 24. One end of the positioning pin 25 far away from the fixture block 26 extends to the outside of the installation shell 1 and is fixedly connected with a pull ring 28, the positioning pin 25 can be conveniently pulled through the pull ring 28, the sliding rails 21 which are vertically arranged are fixedly connected to the inner walls of the two sides of the installation shell 1, the two sliding blocks 20 are respectively arranged on the two sliding rails 21 in a corresponding sliding mode, and the sliding rails 21 play a role in guiding the sliding of the sliding blocks 20 to move up and down. The two sides of the protective hose 2 are symmetrically and fixedly connected with needle wings 5, and the protective sleeve 4 is sleeved on the outer sides of the protective hose 2 and the puncture needle 3. The bottom fixedly connected with of installation casing 1 first installation sleeve 6, the top and the first installation sleeve 6 of delivery hose 7 are pegged graft, and the bottom fixedly connected with second installation sleeve 9 of first installation sleeve 6.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a blood puncture needle with safety protection function, including installation casing (1), protection hose (2), pjncture needle (3) and delivery hose (7), a serial communication port, protection hose (2) pipe connection is on the top of carrying installation casing (1), the bottom activity of pjncture needle (3) extends to in carrying installation casing (1) and is connected with accomodate actuating mechanism, protection hose (2) are run through to the top of pjncture needle (3), and protection hose (2) movable sleeve establishes the outside at pjncture needle (3), the bottom of carrying installation casing (1) can be dismantled with delivery hose (7) and be connected, the externally mounted of delivery hose (7) has ending clamp (8).

2. The hemodialysis puncture needle with the safety protection function according to claim 1, wherein the accommodating driving mechanism comprises a fixed plate (10), the fixed plate (10) is fixedly installed inside the installation shell (1), a through hole (11) is formed in the installation shell (1), threaded rods (13) are rotatably installed on both sides of the top end of the installation shell (1), the top ends of the threaded rods (13) are rotatably connected with the inner wall of the top end of the installation shell (1), movable blocks (12) are fixedly connected to both sides of the bottom end of the puncture needle (3) close to the two threaded rods (13), threaded holes are formed in the movable blocks (12), the two movable blocks (12) are respectively installed outside the two threaded rods (13) in a threaded manner, the bottom end of the threaded rod (13) extends to the lower portion of the fixed plate (10) and is fixedly connected with a first bevel gear (14), the installation shell (1) is internally and rotatably provided with a rotating shaft (15) which is horizontally arranged, the outer side of the rotating shaft (15) is fixedly connected with two second bevel gears (16), and the two second bevel gears (16) correspond to the two first bevel gears (14) one by one and are meshed with each other.

3. A hemodialysis puncture needle with safety protection function according to claim 2, wherein a protection sleeve (18) is fixedly connected to one side of the mounting case (1), one end of the rotating shaft (15) extends to the outside of the mounting case (1) and extends into the protection sleeve (18) and is fixedly connected with a knob (17), and a cover (19) is threadedly mounted on one side of the protection sleeve (18) far away from the mounting case (1).

4. The hemodialysis puncture needle with the safety protection function according to claim 1, wherein the accommodating driving mechanism comprises two first vertical rods (23), the bottom ends of the first vertical rods (23) are fixedly connected with the inner wall of the bottom end of the mounting shell (1), the top end of the first vertical rod (23) is provided with a mounting groove, a second vertical rod (22) is slidably mounted in the mounting groove, the bottom ends of the second vertical rods (22) and the inner wall of the bottom end of the mounting groove are fixedly connected with a return spring (24) till now, both sides of the bottom end of the puncture needle (3) are fixedly connected with sliding blocks (20), the bottom ends of the two sliding blocks (20) are respectively and correspondingly and fixedly connected with the top ends of the two second vertical rods (22), one side of the mounting shell (1) is also slidably mounted with a positioning pin (25), one side of the puncture needle (3) close to the positioning pin (25) is fixedly connected with a clamping block (26), a clamping groove (27) is formed in the clamping block (26), and one end of the positioning pin (25) extends into the clamping groove (27).

5. A hemodialysis puncture needle with safety protection function according to claim 4, wherein one end of the positioning pin (25) far away from the fixture block (26) extends to the outside of the mounting housing (1) and is fixedly connected with a pull ring (28), the inner walls of the two sides of the mounting housing (1) are fixedly connected with vertically arranged slide rails (21), and the two slide blocks (20) are respectively and correspondingly slidably mounted on the two slide rails (21).

6. The hemodialysis puncture needle with safety protection function according to claim 1, wherein needle wings (5) are symmetrically and fixedly connected to both sides of the protection hose (2), and a protective sleeve (4) is sleeved on the outer sides of the protection hose (2) and the puncture needle (3).

7. A hemodialysis needle with safety protection function according to claim 1, wherein a first mounting sleeve (6) is fixedly connected to the bottom end of the mounting housing (1), the top end of the delivery hose (7) is inserted into the first mounting sleeve (6), and a second mounting sleeve (9) is fixedly connected to the bottom end of the first mounting sleeve (6).