CN216628553U - Safety arterial hemostix - Google Patents

Abstract

The utility model provides a safety type arterial hemostix, which comprises a needle cylinder, a needle head and a shielding piece, wherein the needle head comprises a needle seat, a needle stem and a needle point which are sequentially connected, a chute is arranged on the outer wall of the needle cylinder, a sliding block is arranged in the chute in a sliding manner, the shielding piece comprises a sliding section, a middle section and a needle cap section, the sliding section can move in the chute, the middle section is connected with the sliding block and the needle cap section, the needle cap section is sleeved on the needle stem and can seal the needle point in a reset state, a reset chute is also arranged on the side wall of the chute, a sliding block is arranged in the reset chute in a sliding manner, a reset spring is arranged in the reset chute and connected with the sliding block, a sliding hole is arranged on the side wall of the chute and communicated with the reset chute, the sliding block is provided with a connecting rod, the connecting rod penetrates through the sliding hole and is connected with the sliding block, a clamping port is arranged on the side wall of the reset chute, and a clamping block is provided with a clamping block matched with the clamping port, the utility model realizes the rapid sealing of the needle point, and has simple operation and high efficiency.

Description

Safety arterial hemostix

Technical Field

The utility model relates to the field of medical instruments, in particular to a safety type arterial hemostix.

Background

The disposable syringe is one of the most widely used apparatuses in medical institutions at present, and is the most common medical article in nursing work. However, the syringe needle is sharp and is often punctured by a caregiver during use or handling, for example, during needle detachment or needle insertion into a sharps container. The publication number is: CN210963382U, patent name: in the chinese utility model patent of "a syringe is prevented stabbing" of forward type, through set up slidable shield on the syringe needle, set up spout and the slider that is used for promoting the shield on the cylinder, realized sealing to the needle point, avoided the needle stick to hinder, however in the concrete use, the mode of manual promotion is comparatively loaded down with trivial details, is difficult to realize sealing to the needle point fast.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a safety type arterial hemostix, which realizes the rapid sealing of a needle point and avoids medical staff from being punctured by the needle point.

The embodiment of the utility model is realized by the following technical scheme: a safety type arterial hemostix comprises a needle cylinder, a needle head and a shielding part, wherein the needle cylinder is provided with a nipple, the needle head comprises a needle seat, a needle stem and a needle point which are connected in sequence, the needle seat is connected with the nipple, the outer wall of the needle cylinder is provided with a chute which extends along the axial direction of the needle cylinder, a sliding block is arranged in the chute in a sliding way, the shielding part comprises a sliding section, a middle section and a needle cap section, the sliding section can move in the chute, the middle section is connected with the sliding block and the needle cap section, the needle cap section is sleeved on the needle stem and can seal the needle point under a reset state,

the spout lateral wall still disposes the spout that resets, and this spout that should reset sets up side by side with the spout, sliding configuration has the sliding block in the spout that resets, disposes reset spring in the spout that resets, and this reset spring links to each other with the sliding block, the lateral wall that the spout is close to the spout that resets disposes the slide opening, and this slide opening is linked together with the spout that resets, the slider disposes the connecting rod, and this connecting rod passes the slide opening and links to each other with the sliding block, the lateral wall that resets the spout disposes the joint mouth, the sliding block disposes with joint mouth assorted joint piece, when joint piece and joint mouth are in the joint state, the needle cap section is close to the needle file, reset spring is used for storing spring potential energy for tensile state, when joint piece and joint mouth break away from the joint, reset spring is used for releasing spring potential energy and promotes the needle cap section and is located the needle point.

Further, the joint piece includes the body of rod and button, the button disposes in the one end of the body of rod, the sliding block disposes the activity chamber on being close to the lateral wall of joint interface, the body of rod slides and disposes in the activity intracavity, activity intracavity wall disposes the elastic component, the one end that the button was kept away from to the body of rod links to each other with the elastic component.

Furthermore, the activity intracavity lateral wall is configured with the recess, the body of rod lateral wall is configured with the sand grip with recess assorted, the sand grip slides and disposes in the recess.

Furthermore, the sand grip quantity is 4, and 4 sand grips are the annular array and dispose in body of rod lateral wall, the correspondence of recess quantity is 4, and 4 recesses and sand grip one-to-one set up.

Furthermore, the one end of the body of rod far away from the button disposes the spread groove, the elastic component is the spring, and this spring one end is fixed in the activity intracavity wall, and the other end links to each other with the spread groove inner wall.

Further, the button is round platform shape.

Furthermore, the number of the reset chutes is a pair, and the pair of reset chutes are symmetrically arranged at two sides of the chute.

The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects:

(1) according to the puncture-proof needle, the reset sliding groove is configured, so that the needle point is automatically sealed, the puncture-proof effect is achieved, after the puncture of the blood collector is finished, the clamping block is separated from the clamping port by external force, the sliding block is driven to move towards the needle point direction along the reset sliding groove under the action of the reset spring, the sliding block is further driven to move towards the needle point direction along the sliding groove, the sliding block pushes the shielding piece, the needle cap section of the shielding piece moves to the needle point along the needle stem, the needle cap section seals and shields the needle point, the needle puncture wound is avoided, and the puncture-proof needle is convenient and rapid to use.

(2) The elastic needle is characterized in that the elastic piece is arranged on the rod body, the rod body is connected with the sliding block in a clamping mode, the sliding block is fixed in the clamping mode, the elastic piece is arranged on the sliding block in a clamping mode, the sliding block is connected with the sliding block in a sliding mode, and the sliding block is connected with the sliding block in a sliding mode.

(3) According to the utility model, 4 groups of convex strips and grooves are arranged, so that the stability of the whole rod body is ensured, and the button is smoother when being pressed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

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

FIG. 2 is a top view of the present invention;

FIG. 3 is a cross-sectional view of the chute and reset chute of the present invention;

FIG. 4 is an enlarged schematic view at A in FIG. 3;

FIG. 5 is a front view of the clamping block;

FIG. 6 is a sectional view of the slide groove and the reset slide groove in a needle tip closed state;

FIG. 7 is a schematic view of the entire appearance of the needle tip in a closed state;

icon: 1-syringe, 2-needle, 21-needle seat, 22-needle stem, 23-needle point, 3-shielding part, 31-sliding section, 32-middle section, 33-needle cap section, 4-sliding groove, 41-sliding block, 42-sliding hole, 43-connecting rod, 5-resetting sliding groove, 51-sliding block, 510-movable cavity, 511-elastic part, 512-groove, 52-resetting spring, 53-clamping interface, 54-clamping block, 541-rod body, 542-button, 543-convex strip and 544-connecting groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be 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. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of this application is used, the description is merely for convenience and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Example 1

Referring to fig. 1 to 7, the present embodiment provides a safety type arterial blood sampling device, including a needle cylinder 1, a needle head 2 and a shielding member 3, wherein the needle cylinder 1 is provided with a nipple, the needle head 2 includes a needle seat 21, a needle stem 22 and a needle point 23 which are sequentially connected, the needle seat 21 is connected with the nipple, the outer wall of the needle cylinder 1 is provided with a sliding slot 4 extending along the axial direction of the needle cylinder 1, the sliding slot 4 is internally provided with a sliding block 41 in a sliding manner, the shielding member 3 includes a sliding section 31, a middle section 32 and a needle cap section 33, the sliding section 31 can move in the sliding slot 4, the middle section 32 is connected with the sliding block 51 and the needle cap section, the needle cap section 33 is sleeved on the needle stem 22 and can seal the needle point 23 in a reset state,

the side wall of the sliding chute 4 is further provided with a reset sliding chute 5, the reset sliding chute 5 and the sliding chute 4 are arranged side by side, a sliding block 51 is arranged in the reset sliding chute 5 in a sliding manner, a reset spring 52 is arranged in the reset sliding chute 5, the reset spring 52 is connected with the sliding block 51, one end of the reset spring 52 is connected with the inner wall of the reset sliding chute 5 close to the needle point 23, the other end of the reset spring is connected with the sliding block 51, the side wall of the sliding chute 4 close to the reset sliding chute 5 is provided with a sliding hole 42, the sliding hole 42 is communicated with the reset sliding chute 5, the sliding block 41 is provided with a connecting rod 43, the connecting rod 43 passes through the sliding hole 42 to be connected with the sliding block 51, the side wall of the reset sliding chute 5 is provided with a clamping interface 53, the sliding block 51 is provided with a clamping block 54 matched with the clamping interface 53, when the clamping block 54 and the clamping interface 53 are in a clamping state, the needle cap section 33 is close to the needle base 21, and the reset spring 52 is in a stretching state for storing spring potential energy, the return spring 52 is used to release the spring potential energy to push the needle cap section to the needle tip 23 when the snap block 54 is disengaged from the snap interface 53. Reset chute 5 through the configuration, thereby realized the self-sealing to needle point 23, realize preventing thorn effect, after using the hemostix puncture, external force makes joint piece 54 break away from with joint mouth 53, thereby under reset spring 52's effect, drive sliding block 51 and move toward needle point 23 direction along resetting chute 5, and then drive slider 41 along spout 4 toward needle point 23 direction motion, slider 41 promotes shielding 3, thereby shielding 3 needle cap section moves to needle point 23 department along needle stalk 22, needle cap section 33 seals needle point 23 department and shelters from, avoid the needle stick wound, it is convenient quick to use.

Further, in this embodiment, the fastening block 54 includes a rod body 541 and a button 542, the button 542 is disposed at one end of the rod body 541, the sliding block 51 is disposed on a side wall close to the fastening interface 53 and is provided with a movable cavity 510, the rod body 541 is slidably disposed in the movable cavity 510, an inner wall of the movable cavity 510 is provided with an elastic member 511, and one end of the rod body 541 away from the button 542 is connected to the elastic member 511. Through configuration body of rod 541 and elastic component 511, the swing joint of body of rod 541 has been realized, when the joint is fixed, under the effect of elastic component 511, part body of rod 541 and button 542 stretch out to joint mouth 53, it is spacing thereby fixed to sliding block 51 to joint piece 54 through joint mouth 53, reset spring 52 is in tensile state this moment, and when needing to seal needle point 23, press button 542, make body of rod 541 move to activity chamber 510, the compression of elastic component 511, thereby body of rod 541 and button 542 all are located activity chamber 510, joint piece 54 breaks away from joint mouth 53, thereby release elastic potential energy at reset spring 52 and drive sliding block 51 and move, and then drive slider 41 and needle cap section 33 removal sealed needle point 23.

Further, in this embodiment, in order to increase the stability of the rod body 541 sliding in the movable cavity 510, the inner side wall of the movable cavity 510 is configured with a groove 512, the outer side wall of the rod body 541 is configured with a protruding strip 543 matching with the groove 512, and the protruding strip 543 is configured in the groove 512 in a sliding manner. Furthermore, the number of the convex strips 543 is 4, 4 convex strips 543 are arranged on the outer side wall of the rod body 541 in an annular array, the number of the grooves 512 is 4, and the 4 grooves 512 are arranged in a one-to-one correspondence with the convex strips 543, so that the overall stability of the rod body 541 is ensured by arranging 4 groups of convex strips 543 and grooves 512, and the button 542 is pressed more smoothly.

In this embodiment, the end of the rod body 541 away from the button 542 is configured with a connection groove 544, and the elastic element 511 is a spring, one end of the spring is fixed on the inner wall of the movable cavity 510, and the other end of the spring is connected to the inner wall of the connection groove 544. Through at body of rod 541 configuration spread groove 544, increased the activity space of spring, inside connecting the spring at body of rod 541 simultaneously, stability when having increased body of rod 541 and moving sets up rationally.

In this embodiment, specifically, the button 542 is in a circular truncated cone shape, and the button 542 is configured in a circular truncated cone shape, so that when the button 542 is pressed, the button 542 can be moved into the movable cavity 510 conveniently.

In this embodiment, the number of the reset chutes 5 is one pair, and the reset chutes 5 are symmetrically disposed on both sides of the chute 4. Through setting up a pair of runner 5 that resets, improved the stability that slider 41 removed.

When the hemostix is used specifically, the initial state of the hemostix is the clamping state of the clamping block 54 and the clamping interface 53, as shown in fig. 1-3, the needle cap section 33 of the shielding member 3 is close to the needle base 21 of the needle head 2, part of the rod body 541 and the button 542 of the clamping block 54 are exposed out of the clamping interface 53 and are matched with the clamping interface 53 for limiting and fixing, and the reset spring 52 is in a stretching state; medical personnel accomplish the puncture back, the one hand is the centre gripping form and presses both sides button 542, button 542 and the body of rod 541 inwards move and break away from joint mouth 53, elastic component 511 atress compression, under reset spring 52's effect, drive rapidly sliding block 51 and move toward needle point 23 direction along resetting spout 5, and then drive slider 41 and move toward needle point 23 direction along spout 4, slider 41 promotes shielding 3, thereby 3 needle cap sections 33 of shielding move to needle point 23 department along needle stalk 22, the needle cap section seals needle point 23 department and shelters from, as shown in fig. 6 and 7, its needle point 23 seals rapidly, need not to promote, thereby avoid the needle stick wound.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a safe type arterial hemostix, includes cylinder, syringe needle and shield, is equipped with the nipple on the cylinder, and the syringe needle is connected with the nipple including needle file, needle stalk and the needle point that connects gradually, be equipped with on the cylinder outer wall along cylinder axial extension's spout, and sliding configuration has the slider in the spout, the shield includes sliding section, interlude and needle cap section, the sliding section can make and remove in the spout, and sliding section and needle cap section are connected to the interlude, needle cap section cover is located on the needle stalk and can seal its characterized in that to the needle point under the reset state:

the spout lateral wall still disposes the spout that resets, and this spout that should reset sets up side by side with the spout, sliding configuration has the sliding block in the spout that resets, disposes reset spring in the spout that resets, and this reset spring links to each other with the sliding block, the lateral wall that the spout is close to the spout that resets disposes the slide opening, and this slide opening is linked together with the spout that resets, the slider disposes the connecting rod, and this connecting rod passes the slide opening and links to each other with the sliding block, the lateral wall that resets the spout disposes the joint mouth, the sliding block disposes with joint mouth assorted joint piece, when joint piece and joint mouth are in the joint state, the needle cap section is close to the needle file, reset spring is used for storing spring potential energy for tensile state, when joint piece and joint mouth break away from the joint, reset spring is used for releasing spring potential energy and promotes the needle cap section and is located the needle point.

2. The safety type arterial hemostix according to claim 1, wherein the clamping block comprises a rod and a button, the button is disposed at one end of the rod, the sliding block is disposed with a movable cavity on the side wall near the clamping port, the rod is slidably disposed in the movable cavity, the inner wall of the movable cavity is disposed with an elastic member, and the end of the rod away from the button is connected to the elastic member.

3. The safe arterial hemostix according to claim 2, wherein the movable chamber has a groove on the inner wall thereof, and the shaft has a rib on the outer wall thereof matching with the groove, the rib being slidably disposed in the groove.

4. The safety arterial hemostix of claim 3, wherein the number of the convex strips is 4, 4 convex strips are disposed on the outer side wall of the shaft body in an annular array, the number of the grooves is 4, and 4 grooves are disposed in one-to-one correspondence with the convex strips.

5. The safe arterial hemostix according to claim 4, wherein the shaft has a connecting slot at one end away from the button, and the elastic member is a spring with one end fixed to the inner wall of the movable chamber and the other end connected to the inner wall of the connecting slot.

6. The safety arterial hemostix of claim 5, wherein the button is truncated cone shaped.

7. The safety arterial hemostix according to claim 1, wherein the number of the reset chutes is a pair, and the pair of reset chutes are symmetrically disposed on both sides of the chute.

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