CN211355768U

CN211355768U - Hemodialysis pjncture needle with sharp ware injury protector

Info

Publication number: CN211355768U
Application number: CN201921329040.5U
Authority: CN
Inventors: 梁晓雅; 董雨馨
Original assignee: Affiliated Hospital of Shaanxi University of Chinese Medicine
Current assignee: Affiliated Hospital of Shaanxi University of Chinese Medicine
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-08-28
Anticipated expiration: 2029-08-15

Abstract

The utility model discloses a hemodialysis puncture needle with a sharp injury protection device, which belongs to the technical field of medical appliances and comprises a PVC hose, wherein a wedge-shaped lug is arranged at the bottom of a first clamping edge through a connecting rod and a hinge, a wedge-shaped groove matched with the wedge-shaped lug is arranged on the left side wall of a second clamping edge, the first clamping edge is pressed towards the second clamping edge to be drawn close, when the wedge-shaped lug on the hinge contacts the wedge-shaped groove, the wedge-shaped lug is clamped and fixed in the wedge-shaped groove under the resilience of a reset spring, the hemodialysis puncture needle head is sealed, the spread of blood-borne pathogens caused by needle stick injury due to the contaminated needle head after use is avoided, a clamping groove matched with the clamping block is arranged on a protective sleeve through arranging the needle handle, the protective sleeve can be matched with the clamping block to clamp the protective sleeve when the protective sleeve is pushed towards the needle head, the protective sleeve is prevented from being separated from the needle handle on the PVC hose, so that the needle head is exposed, and the safety of the device is further improved.

Description

Hemodialysis pjncture needle with sharp ware injury protector

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a hemodialysis puncture needle with a sharp injury protection device.

Background

Hemodialysis is one of the kidney replacement treatment modes of patients with acute and chronic renal failure. The blood and electrolyte solution (dialysate) with similar concentration of organism are arranged inside and outside one hollow fiber by draining the blood in vivo to the outside of the body through a dialyzer consisting of a plurality of hollow fibers, and the material exchange is carried out by dispersion/convection, thereby removing the metabolic waste in the body and maintaining the balance of electrolyte and acid-base; at the same time, the excess water in the body is removed, and the whole process of purified blood reinfusion is called hemodialysis. When hemodialysis is carried out on a patient, a hemodialysis puncture needle needs to be used, after the hemodialysis, the puncture needle needs to be pulled out, and because the specification of the dialysis puncture needle is far larger than that of a common arteriovenous puncture needle, the puncture needle needs to be subjected to safety treatment of a sharp instrument immediately after being used, and the propagation of blood-borne pathogens caused by puncture injury due to a polluted needle head is avoided. However, most of the currently used clinical protecting sleeves for hemodialysis needles after being pulled out generally have some disadvantages, for example, when the protecting sleeve is pushed to the needle from the hose, the protecting sleeve is not easy to fix and the front end of the protecting sleeve slightly stretches, so that the needle is exposed, and the safety is low.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

The utility model provides a problem that exists in the current hemodialysis pjncture needle, has proposed.

Therefore, the utility model aims at providing a hemodialysis puncture needle with a sharp injury protection device, which is characterized in that a PVC hose is provided with a protective sleeve, the top and the bottom of the protective sleeve are respectively provided with a first clamping arm and a second clamping arm, the bottoms of the two clamping arms are respectively provided with a first clamping edge and a second clamping edge, the bottom of the first clamping edge is provided with a wedge-shaped lug through a connecting rod and a hinge, the left side wall of the second clamping edge is provided with a wedge-shaped groove matched with the wedge-shaped lug, a reset spring is arranged between the connecting rod and the wedge-shaped lug, medical personnel can press the first clamping edge to the second clamping edge by pressing the first clamping arm and the second clamping arm, when the wedge-shaped lug on the hinge contacts the wedge-shaped groove, the wedge-shaped lug is clamped and fixed in the wedge-shaped groove under the resilience force of the reset spring, thereby playing a sealing role for the hemodialysis puncture needle head, the syringe needle of the pollution after avoiding using causes the propagation that the needle stick injures and leads to blood source nature pathogen, very big improvement the security, through be provided with the fixture block on the needle handle, open on the protective sheath have with fixture block matched with draw-in groove, can cooperate with when promoting the protective sheath to the syringe needle and with the protective sheath chucking, avoid the protective sheath to deviate from the needle handle on the PVC hose, lead to the syringe needle to expose, further improved the device's security.

For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:

a hemodialysis needle with a sharp injury prevention device, comprising: the PVC hose comprises a PVC hose, a protective sleeve, a connecting rod and a reset spring, wherein a needle handle is arranged on the outer wall of the circumference of the left end of the PVC hose, clamping blocks are arranged on the front side wall and the rear side wall of the right side wall of the needle handle, clamping grooves matched with the clamping blocks are formed in the front side wall and the rear side wall of the left side wall of the protective sleeve, the protective sleeve is arranged on the PVC hose, an upper clamping arm and a lower clamping arm are respectively arranged at the top and the bottom of the protective sleeve, a first clamping edge and a second clamping edge are respectively arranged on the left side wall of the bottom of the upper clamping arm and the left side wall of the top of the lower clamping arm, the connecting rod is arranged at the bottom of the first clamping edge, a hinge is arranged at the bottom of the connecting rod, a wedge-shaped convex block is arranged on the right side wall of the hinge, a wedge-shaped groove matched with the wedge-shaped convex, and the reset spring is arranged between the two mounting seats.

As an optimized scheme of hemodialysis pjncture needle with sharp ware injury protector, wherein: the left end of the PVC hose is provided with a hemodialysis puncture needle head, and the PVC hose is provided with a flow stopping clip.

As an optimized scheme of hemodialysis pjncture needle with sharp ware injury protector, wherein: and a limiting plate is transversely arranged at the bottom of the right side wall of the first clamping edge.

As an optimized scheme of hemodialysis pjncture needle with sharp ware injury protector, wherein: the protective sleeve is provided with an anti-slip layer, the anti-slip layer is a rubber anti-slip layer, and anti-slip lines are arranged on the anti-slip layer.

Compared with the prior art, the beneficial effects of the utility model are that: the protecting sleeve is arranged on the PVC hose, the first clamping arm and the second clamping arm are respectively arranged at the top and the bottom of the protecting sleeve, the first clamping edge and the second clamping edge are respectively arranged at the bottoms of the two clamping arms, the wedge-shaped convex block is arranged at the bottom of the first clamping edge through the connecting rod and the hinge, the wedge-shaped groove matched with the wedge-shaped convex block is formed in the left side wall of the second clamping edge, the reset spring is arranged between the connecting rod and the wedge-shaped convex block, medical personnel can press the first clamping edge to the second clamping edge by pressing the first clamping arm and the second clamping arm, when the wedge-shaped convex block on the hinge contacts the wedge-shaped groove, the wedge-shaped convex block is clamped and fixed in the wedge-shaped groove under the resilience force of the reset spring, the sealing effect is achieved on the hemodialysis puncture needle head, and the propagation of hematogenous pathogens caused by the puncture needle head due to puncture caused by the used, very big improvement the security, through be provided with the fixture block on the needle handle, it has the draw-in groove with fixture block matched with to open on the protective sheath, can cooperate with the protective sheath chucking when promoting the protective sheath to the syringe needle, avoid the protective sheath to deviate from the needle handle on the PVC hose, lead to the syringe needle to expose, further improved the device's security.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the working state of the present invention;

FIG. 3 is a schematic view of the wedge-shaped projection structure of the present invention;

fig. 4 is a schematic view of the structure of the needle handle of the present invention.

In the figure: the hemodialysis puncture needle comprises a PVC hose 100, a hemodialysis puncture needle 110, a needle handle 120, a clamping block 121, a protective sleeve 200, an upper clamping arm 210, a lower clamping arm 220, a first clamping edge 230, a second clamping edge 240, a limiting plate 250, a clamping groove 260, a connecting rod 300, a hinge 310, a wedge-shaped projection 320, a wedge-shaped groove 330 and a return spring 400.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways than those specifically described herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides a following technical scheme: a hemodialysis puncture needle with a sharp injury protection device comprises a PVC hose 100, a protection sleeve 200, a connecting rod 300 and a return spring 400;

referring to fig. 1, 2 and 4, the PVC hose 100 includes a hemodialysis puncture needle 110, a needle handle 120 and a fixture block 121, the hemodialysis puncture needle 110 is installed at the left end of the PVC hose 100, the needle handle 120 is installed at the outer circumferential wall of the left end of the PVC hose 100, the fixture block 121 is installed at the front and rear side walls of the right side wall of the needle handle 120, the PVC hose 100 is used for performing dialysis treatment on a patient through the hemodialysis puncture needle 110, the needle handle 120 is used for facilitating the puncture work of medical personnel and limiting the protection sleeve 200, and the fixture block 121 is used for cooperating with the fixture block 260 to clamp the protection sleeve 200;

referring to fig. 1, 2 and 3, the protective cover 200 includes an upper clamping arm 210 and a lower clamping arm 220, the protective sleeve 200 is sleeved on the PVC hose 100, the upper clamping arm 210 and the lower clamping arm 220 are respectively arranged at the top and the bottom of the protective sleeve 200, the first clamping edge 230 is arranged on the left side wall of the bottom of the upper clamping arm 210, the second clamping edge 240 is arranged on the left side wall of the top of the lower clamping arm 220, the limiting plate 250 is arranged at the bottom of the right side wall of the first clamping edge 230, the clamping grooves 260 are arranged on the front side wall and the rear side wall of the left side wall of the protective sleeve 200, the protective sleeve 200 is used for sealing the hemodialysis puncture needle 110 through the matching of the upper clamping arm 210 and the lower clamping arm 220, the first clamping edge 230 and the second clamping edge 240 are used for fixing the upper clamping arm 210 and the lower clamping arm 220 in a matching manner, and the limiting plate 250 is used for limiting the positions of the hinge 310 and the wedge-shaped projection 320 and preventing the wedge-shaped projection 320 from being separated;

referring to fig. 3 again, the connecting rod 300 includes a hinge 310, a wedge-shaped protrusion 320 and a wedge-shaped groove 330, the connecting rod 300 is installed at the bottom of the first clamping edge 230, the hinge 310 is installed at the bottom of the connecting rod 300, the wedge-shaped protrusion 320 is installed at the right side wall of the hinge 310, the wedge-shaped groove 330 is installed at the left side wall of the second clamping edge 240, the connecting rod 300 is used for installing the hinge 310, the hinge 310 is used for driving the wedge-shaped protrusion 320 to rotate, and the wedge-shaped protrusion 320 is used for cooperating with the wedge-shaped;

referring to fig. 3 again, a return spring 400 is mounted on the right sidewall of the connecting rod 300 and the top of the wedge-shaped protrusion 320 through a mounting seat, and the return spring 400 is used to drive the wedge-shaped protrusion 320 to return and be clamped into the wedge-shaped groove 330.

The working principle is as follows: technical field's technical personnel promote lag 200 to hemodialysis puncture syringe needle 110 direction, when lag 200 contacts needle handle 120, fixture block 121 and draw-in groove 260 cooperate with lag 200 joint on needle handle 120, medical personnel press upper clamping arm 210 and lower clamping arm 220, press first card limit 230 to second card limit 240 and draw close, when wedge lug 320 on hinge 310 contacts wedge recess 330, it is fixed to carry out the chucking in wedge recess 330 with wedge lug 320 card under reset spring 400's resilience effect, wrap hemodialysis puncture syringe needle 110, limiting plate 250 can prevent that wedge lug 320 from droing in the wedge recess 330.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A hemodialysis pjncture needle with sharp ware injury protector which characterized in that: the novel needle protection device comprises a PVC hose (100), a protective sleeve (200), a connecting rod (300) and a reset spring (400), wherein a needle handle (120) is arranged on the outer wall of the circumference of the left end of the PVC hose (100), clamping blocks (121) are arranged on the front side wall and the rear side wall of the right side wall of the needle handle (120), clamping grooves (260) matched with the clamping blocks (121) are formed in the front side wall and the rear side wall of the left side wall of the protective sleeve (200), the PVC hose (100) is provided with the protective sleeve (200), an upper clamping arm (210) and a lower clamping arm (220) are respectively arranged at the top and the bottom of the protective sleeve (200), a first clamping edge (230) and a second clamping edge (240) are respectively arranged on the left side wall of the bottom of the upper clamping arm (210) and the left side wall of the top of the lower clamping arm (220), the connecting rod (300) is arranged at the bottom of the first clamping edge, the right side wall of hinge (310) is provided with wedge lug (320), the left side wall of second card limit (240) open have with wedge lug (320) matched with wedge recess (330), the right side wall of connecting rod (300) in the middle of with the top of wedge lug (320) in the middle of all being provided with the mount pad, two set up between the mount pad reset spring (400).

2. A hemodialysis needle with a sharp injury prevention device in accordance with claim 1, wherein: the left end of PVC hose (100) is provided with hemodialysis syringe needle (110), be provided with on PVC hose (100) and stop the clamp of flowing.

3. A hemodialysis needle with a sharp injury prevention device in accordance with claim 1, wherein: and a limiting plate (250) is transversely arranged at the bottom of the right side wall of the first clamping edge (230).

4. A hemodialysis needle with a sharp injury prevention device in accordance with claim 1, wherein: be provided with the skid resistant course on lag (200), the skid resistant course is the rubber skid resistant course, be provided with anti-skidding line on the skid resistant course.