CN219423453U - Prevent acupuncture protective sheath - Google Patents

Abstract

The utility model discloses an anti-needling protective sleeve, which relates to the technical field of medical appliances and comprises a sleeve which can be sleeved on a vein needle extension tube in a sliding and rotating way, wherein the length of the sleeve is longer than that of the vein needle tube so as to accommodate the vein needle tube when the sleeve slides in place; the side wall of the sleeve is provided with a working slide way and a mounting slide way at different circumferential positions respectively, the rear end of the working slide way is provided with a clamping groove, the rear end of the mounting slide way is provided with a mounting groove, the working slide way and the mounting slide way extend along the axial direction, and the working slide way and the mounting slide way are mutually communicated through a transition slide way; the working slide way and the installation slide way are both used for sliding a vein needle handle connected to the vein needle extension tube, the transition slide way is used for rotating the vein needle handle, the clamping groove is used for fixing the vein needle handle, and the installation groove is used for installing the vein needle handle. The utility model can conveniently and easily realize the protection of the used intravenous needle, prevent the intravenous needle from being exposed to hurt people, and simultaneously avoid the loss of the protective sleeve.

Description

An anti-needle protective cover

technical field

The utility model relates to the technical field of medical instruments, in particular to an anti-acupuncture protective cover.

Background technique

Clinical infusion is a common treatment. During intravenous infusion, the infusion set usually has an intravenous needle, which is used to puncture the patient's vein. As shown in Figure 1, the main structure of the venous needle includes the venous needle extension tube a, the venous needle tube b, the venous needle handle c and the venous needle seat d.

After the patient has finished the infusion, the intravenous needle must be recovered and destroyed. In the process of using and destroying the infusion set, it needs to be handled by multiple medical staff, and there is a great risk of being stabbed by the intravenous needle. The needle tube used by the patient may carry germs due to contact with the patient's blood, which brings great safety hazards to medical staff. Nurses are high-risk groups of needlestick injuries, and the incidence of blood-borne diseases caused by needlestick injuries is higher than that of other medical workers. Needlestick injuries have become one of the major safety concerns of nurses.

At present, venous needles come with a protective sheath when they leave the factory. The traditional venous needle protective sheath is usually a cylindrical sheath. When in use, the protective sheath needs to be removed and discarded with medical waste such as sterile cotton swabs or stored separately. After the infusion is completed, the venous needle is collected together with the infusion set to the disposal room for processing. During this process, if the needle of the venous needle (that is, the venous needle tube b) is not wrapped, it is very easy to stab the relevant personnel. For this reason, in the prior art, after the use of the venous needle is completed, the medical personnel have to reinstall the protective cover again, so as to avoid the surrounding personnel from being stabbed by the venous needle.

However, in the process of reinstalling the protective cover, the medical staff usually need to use the intravenous needle to lift the protective cover, and then hold the protective cover with the other hand to reinstall it. Stab wounds, and medical staff usually wear gloves on their hands, which makes it inconvenient to perform precise alignment between the venous needle and the protective cover. Moreover, after the protective cover is removed from the venous needle, it is also easy to lose. Once lost, the medical staff need to hold the infusion set with exposed needles and take it back to the disposal room. During this process, the venous needle is very easy to stab the medical staff or the surrounding personnel.

Therefore, it is a technical problem faced by those skilled in the art how to conveniently and easily realize the protection of the used venous needle, prevent the venous needle from being exposed and hurt people, and avoid the loss of the protective cover at the same time.

Utility model content

The purpose of the utility model is to provide an anti-acupuncture protective cover, which can conveniently realize the protection of the used venous needle, prevent the venous needle from being exposed and hurt people, and avoid the loss of the protective cover at the same time.

In order to solve the above technical problems, the utility model provides an anti-acupuncture protective cover, which includes a sleeve that is slidably and rotatably sleeved on the extension tube of the venous needle, and the length of the sleeve is greater than the length of the venous needle tube , to accommodate the IV needle when slid into place;

The side wall of the casing is respectively provided with a working slideway and an installation slideway at different circumferential positions, the rear end of the working slideway is provided with a card slot, and the rear end of the installation slideway is provided with an installation groove , the working slideway and the installation slideway both extend axially, and the working slideway and the installation slideway communicate with each other through a transition slideway;

Both the working slideway and the installation slideway are used for sliding the venous needle handle connected to the venous needle extension tube, the transition slideway is used for rotating the venous needle handle, and the card slot is used for For fixing the venous needle handle, the installation groove is used for installing the venous needle handle.

Preferably, the transition slideway is an arc slideway.

Preferably, the front end of the working slideway extends to the front end face of the casing, and the front end of the installation slideway is a blind end.

Preferably, one end of the transition slideway communicates with the rear end of the working slideway, and the other end of the transition slideway communicates with the front end of the installation slideway.

Preferably, a first stopper protrusion is provided between the working slideway and the draw-in groove, and is used for contacting the vein needle handle after sliding into the draw-in groove from the working slideway. The handle forms an abutment so as to prevent the venous needle handle from slipping out of the locking groove reversely.

Preferably, a second stopper protrusion is provided between the installation slideway and the installation groove, for connecting with the vein needle handle after sliding into the installation slideway from the installation groove. The needle handle forms an abutment so as to prevent the venous needle handle from sliding back to the installation groove in reverse.

Preferably, the rear end of the installation groove extends to the rear end surface of the sleeve, and the rear end of the installation groove is provided with a third stop protrusion for sliding into the venous needle handle. After the groove is installed, it abuts against the venous needle handle to prevent the venous needle handle from detaching from the installation groove in reverse.

Preferably, the first stop protrusion, the second stop protrusion, and the third stop protrusion are all serrated.

Preferably, the first stop protrusions are arranged on the side walls on both sides opposite to the rear end of the working slide, and the second stop protrusions are arranged on the opposite sides of the rear end of the installation slide On the wall, the third stop protrusion is arranged on both sides of the rear end of the installation groove facing the groove wall.

Preferably, the front end of the cannula is provided with a guiding slope to guide the venous needle handle to slide into the working slideway.

The anti-acupuncture protective cover provided by the utility model mainly includes a casing, a working slideway, an installation slideway, a card slot, an installation groove and a transition slideway. Among them, the sleeve is the main part and main structure of the protective sleeve, specifically in a tubular shape, and is mainly used to install the rest of the venous needle and the protective sheath. It is specifically set on the venous needle extension tube and can be placed on the venous needle extension tube. Axial sliding movement and circumferential rotational movement are performed to adjust the length direction position and circumferential angular position of itself on the venous needle extension tube. At the same time, the length of the cannula is greater than that of the venous needle tube, so that when the cannula slides to the preset position on the venous needle extension tube, the entire venous needle tube can be completely accommodated, thereby forming a protective effect on the venous needle tube. Both the working slideway and the installation slideway are set on the side wall of the bushing, both extend along the axial direction of the bushing, and are respectively located at different circumferential positions of the bushing, that is, the two have a certain angle between the center of the circle, mainly It is used for sliding the venous needle handle connected to the venous needle extension tube when the cannula slides relative to the venous needle extension tube. The clamping slot is arranged at the rear end of the working slideway, and is mainly used for clamping and fixing the venous needle handle; the installation groove is arranged at the rear end of the installation slideway, and is mainly used for installing the venous needle handle. The transitional slideway is connected between the working slideway and the installation slideway, connects the two with each other, and is mainly used for rotation of the venous needle handle.

In this way, the anti-acupuncture protective cover provided by the utility model, when the venous needle is not in use, the venous needle tube is accommodated in the casing, and the venous needle handle is installed in the installation groove; when the venous needle needs to be used, only need to pull the venous needle Extend the tube or cannula so that the venous needle handle slides from the installation groove into the installation slideway, then rotate the venous needle extension tube or sleeve to make the venous needle handle rotate from the installation slideway to the working slideway, and finally continue to pull the venous needle Extend the tube or cannula so that the venous needle handle slides toward its front end along the working slideway until the venous needle tube stretches out of the cannula; after the venous needle is used, the medical staff only need to hold the cannula, Pull the venous needle seat back with one hand to slide the cannula on the venous needle extension tube until the venous needle handle slides back into the working slideway and slides toward the rear end until it is locked into the card slot, which is easy to operate It is simple and easy to operate. At the same time, the venous needle tube is fixed in the cannula by using the clamping fit between the venous needle handle and the card slot, and the cannula forms a protective effect on the venous needle tube to prevent the venous needle tube from being exposed and hurting people. Moreover, the venous needle handle and the After the snap-in fit of the card slot is formed, the relative positional relationship between the entire venous needle and the cannula is also fixed, ensuring that the venous needle tube will not easily fall out of the cannula, and at the same time, the loss of the protective sleeve can be avoided.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description It is only an embodiment of the utility model, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is a schematic diagram of a specific structure of a venous needle in the prior art.

Fig. 2 is a schematic diagram of the overall structure of a specific embodiment provided by the present invention.

Fig. 3 is a schematic diagram of the assembly structure of the venous needle and the protective sheath before use.

FIG. 4 is a schematic diagram of another perspective of FIG. 3 .

Fig. 5 is a schematic diagram of the assembly structure of the venous needle and the protective cover when in use.

FIG. 6 is a schematic diagram of another viewing angle of FIG. 5 .

Fig. 7 is a schematic diagram of the assembly structure of the venous needle and the protective cover after use.

FIG. 8 is a schematic diagram of another perspective of FIG. 7 .

Wherein, among Fig. 1-Fig. 8:

Venous needle extension tube—a, venous needle tube—b, venous needle handle—c, venous needle seat—d;

Sleeve—1, working slideway—2, installation slideway—3, card slot—4, installation groove—5, transition slideway—6, first stop protrusion—7, second stop protrusion—8 , the third stopper protrusion-9, the guide slope-10.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to FIG. 2 , which is a schematic diagram of the overall structure of a specific embodiment provided by the present invention.

In a specific embodiment provided by the present invention, the anti-acupuncture protective sheath mainly includes a casing 1 , a working slide 2 , an installation slide 3 , a card slot 4 , an installation slot 5 and a transition slide 6 .

Among them, the sleeve 1 is the main part and main structure of the protective cover, which is specifically tubular, and is mainly used for installing the venous needle and the rest of the protective cover. It is specifically set on the venous needle extension tube a and can be extended on the venous needle. Axial sliding movement and circumferential rotational movement are performed on the tube a to adjust its lengthwise position and circumferential angular position on the venous needle extension tube a. At the same time, the length of the cannula 1 is greater than the length of the venous needle tube b, so that when the cannula 1 slides to the preset position on the venous needle extension tube a, the entire venous needle tube b is completely accommodated, thereby forming a negative impact on the venous needle tube b. protective effect.

Both the working slideway 2 and the installation slideway 3 are set on the side wall of the casing 1, both of which extend along the axial direction of the casing 1, and are respectively located at different circumferential positions of the casing 1, that is, both have a certain The angle between the center of the circle is mainly used for sliding the venous needle handle c connected to the venous needle extension tube a when the cannula 1 slides relative to the venous needle extension tube a.

The card slot 4 is set at the rear end of the working slideway 2 (with the needle of the venous needle or the direction of the venous needle tube b as the front), and is mainly used to clamp and fix the venous needle handle c; the installation groove 5 is set on the installation slideway 3 The rear end of the position is mainly used to install the venous needle handle c. The transition slideway 6 is connected between the working slideway 2 and the installation slideway 3, and connects the two with each other, and is mainly used for rotation of the venous needle handle c.

In this way, in the anti-needle protection cover provided by this embodiment, when the venous needle is not in use, the venous needle tube b is accommodated in the sleeve 1, and the venous needle handle c is installed in the installation groove 5; when the venous needle needs to be used, Just pull the venous needle extension tube a or sleeve 1, so that the venous needle handle c slides into the installation slideway 3 from the installation groove 5, and then rotate the venous needle extension tube a or sleeve 1, so that the venous needle handle c slides from the Install the slideway 3 and turn it into the working slideway 2, and finally continue to pull the venous needle extension tube a or the cannula 1, so that the venous needle handle c slides toward the front end along the working slideway 2 until the venous needle tube b stretches out to the sleeve Just outside the tube 1; after the venous needle is used, the medical staff only need to hold the cannula 1, and then use the other hand to pull the arterial venous needle seat d backward, so that the cannula 1 can slide on the venous needle extension tube a , until the venous needle handle c slides into the working slide 2 again and slides toward its rear end to be locked into the card slot 4. The operation is convenient and simple, and at the same time, the card between the venous needle handle c and the card slot 4 The venous needle tube b is fixed in the sleeve 1 through joint cooperation, and the sleeve 1 forms a protective effect on the venous needle b to prevent the venous needle b from being exposed and hurting people. Moreover, after the venous needle handle c and the card slot 4 form a snap fit, the entire The relative positional relationship between the venous needle and the cannula 1 is also fixed, so as to ensure that the venous needle tube b will not easily escape from the cannula 1, and at the same time, the loss of the protective sheath can be avoided.

As shown in Figures 3 to 8, Figure 3 is a schematic diagram of the assembly structure of the intravenous needle and the protective sleeve before use, Figure 4 is a schematic diagram of another perspective of Figure 3, and Figure 5 is the assembly structure of the intravenous needle and the protective sleeve when in use Schematic diagrams, FIG. 6 is a schematic diagram of another perspective of FIG. 5 , FIG. 7 is a schematic diagram of the assembly structure of the venous needle and the protective sleeve after use, and FIG. 8 is a schematic diagram of another perspective of FIG. 7 .

In an optional embodiment of the sleeve 1 , the sleeve 1 is in a tubular shape as a whole, and its cross-sectional shape is specifically circular or rectangular, that is, a round tube or a square tube. Certainly, the specific shape of the casing 1 is not fixed, for example, the cross-sectional shape may also be polygonal or irregular.

In an optional embodiment of the transition slideway 6, it is considered that the working slideway 2 and the installation slideway 3 are respectively arranged at different circumferential positions of the sleeve 1, and the trajectory of the venous needle handle c when rotating is a section Arc, in order to communicate with each other in the circumferential direction, in this embodiment, the transition slideway 6 is specifically an arc slideway, that is, the shape is arc-shaped, or it can be considered as a filling entity in the area where the transition slideway 6 is located Actually, it is part of the side wall of the sleeve 1 (in the case of a circular tube), so that the venous needle handle c can smoothly pass through the transition slide 6 and rotate from the installation slide 3 to the working slide 2 during the rotation. Generally, the axial length of the transition slideway 6 can be equivalent to the width of the venous needle handle c.

In an optional embodiment of the working slideway 2 and the installation slideway 3, the front end of the working slideway 2 is a through end, that is, the front end of the working slideway 2 extends axially to the front end surface of the sleeve 1, so that the venous needle can be extended The tube a slides out or slides in; while the installation slideway 3 does not need this function, its front end is a non-through end, that is, a blind end, which only provides a small axial displacement for the venous needle handle c.

Further, in order to facilitate the transition slideway 6 to connect the working slideway 2 and the installation slideway 3, in this embodiment, the rear end of the working slideway 2 and the front end of the installation slideway 3 are located in the same axial area, and the transition slideway 6 is just opened here, and its one end is communicated with the rear end area of working slideway 2, and its other end is communicated with the front end area of installation slideway 3. In this way, when the venous needle handle c slides to the end position along the installation slideway 3, it will naturally transition to the starting point position of the working slideway 2 by means of rotation.

In order to improve the clamping stability of the venous needle handle c in the card slot 4 and prevent the venous needle handle c from slipping into the card slot 4 from the working slideway 2 and then slipping out of the card slot 4 in reverse, a first stop is added in this embodiment. Block protrusion 7. Specifically, the first stop protrusion 7 is provided at a position between the working slideway 2 and the slot 4, and is mainly used to abut against the venous needle handle c to prevent the venous needle handle c from falling out of the slot 4. Reverse disengagement. Specifically, the first stop protrusions 7 are arranged on the opposite side walls on both sides of the rear end of the working slideway 2 at the same time, and the two first stop protrusions 7 are kept facing each other, and are specifically in a sawtooth or triangular shape. That is to say, it has a tip extending obliquely inward and a flat end perpendicular to the side wall surface of the working slideway 2 . Among them, the tip is mainly used to form a necking structure, so that when the venous needle handle c slides forward from the working slideway 2 into the card slot 4, it will form a squeezing effect on the venous needle handle c to make it elastically deformed. Enter into the card slot 4 through the necking structure. The flat end is mainly used to abut against the venous needle handle c. When the venous needle handle c enters the card slot 4 through the necking structure, it is restored to its original shape by elastic force, so that it cannot come out through the narrow gap between the two flat ends.

Of course, the first stopper protrusion 7 can also be arranged only on one side wall of the rear end of the working slideway 2, which can also achieve the effect of releasing the venous needle handle c in the forward direction and blocking the venous needle handle c in the reverse direction.

Similarly, in this embodiment, a second stop protrusion 8 and a third stop protrusion 9 are added.

Wherein, the second stop protrusion 8 is arranged at the position between the installation slideway 3 and the installation groove 5, and is mainly used to form abutment with the venous needle handle c, so that the venous needle handle c slides forward from the installation groove 5 After entering the installation slideway 3, the venous needle handle c is prevented from sliding back into the installation groove 5 in reverse, so as to ensure that the venous needle will not be reused once it is used, and the safety performance is improved. Specifically, the same as the first stopper protrusion 7, the second stopper protrusion 8 is simultaneously arranged on the opposite side walls on both sides of the rear end of the installation slideway 3, and the two second stopper protrusions 8 are kept mutually positive. Yes, and it is specifically in a zigzag or triangular shape. For its working principle, refer to the aforementioned first stop protrusion 7 , which will not be repeated here.

The third stop protrusion 9 is arranged at the rear end of the mounting groove 5, the rear end of the mounting groove 5 is not a blind end, but extends axially to the rear end face of the sleeve 1 to form an open end, so as to The venous needle handle c is slid into the installation groove 5 during factory assembly; the third stopper protrusion 9 is mainly used to form a resistance to the venous needle handle c after the venous needle handle c slides into the installation groove 5 from the outside. To prevent the venous needle handle c from falling out of the installation groove 5 in the reverse direction, so as to ensure that the venous needle handle c will not accidentally fall out of the installation groove 5, thereby ensuring the assembly stability between the entire venous needle and the protective cover, and further avoiding the loss of the protective cover Condition. Specifically, the third stop protrusion 9 is the same as the first stop protrusion 7 and the second stop protrusion 8, and is simultaneously arranged on the groove walls on both sides of the rear end of the installation groove 5, and the two third stop protrusions The protrusions 9 keep facing each other, and are specifically in a zigzag or triangular shape. For the working principle, refer to the aforementioned first stop protrusion 7 and the second stop protrusion 8 , which will not be repeated here.

In addition, considering that in the state of the venous needle before use, the venous needle handle c is generally located at a certain distance from the front end of the cannula 1, when the venous needle extension tube a is pulled back, the venous needle handle c will gradually retreat and enter the working slide In the track 2, in order to ensure that the venous needle handle c can enter the working slideway 2 stably and smoothly, and to avoid movement stagnation, in this embodiment, a guiding slope 10 is provided at the head end of the working slideway 2, By guiding the venous needle handle c through the guiding inclined surface 10 , the venous needle handle c is guided to slide smoothly into the working slideway 2 .

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An anti-acupuncture protective cover is used for venous needles, and the venous needles include venous needle extension tubes (a), venous needle tubes (b) and venous needle handles (c), which are characterized in that they include slidable and movable The sleeve (1) is rotatably sleeved on the venous needle extension tube (a), the length of the sleeve (1) is longer than the length of the venous needle tube (b), so as to accommodate the IV needle (b); The side wall of the casing (1) is respectively provided with a working slideway (2) and an installation slideway (3) at different circumferential positions, and the rear end of the working slideway (2) is provided with a card slot ( 4), the rear end of the installation slideway (3) is provided with an installation groove (5), the working slideway (2) and the installation slideway (3) both extend axially, and the working slideway Road (2) and described installation slideway (3) communicate with each other through transition slideway (6); Both the working slideway (2) and the installation slideway (3) are used for sliding the venous needle handle (c) connected to the venous needle extension tube (a), and the transition slideway (6) Used to rotate the venous needle handle (c), the card slot (4) is used to fix the venous needle handle (c), and the installation groove (5) is used to install the venous needle handle (c) . 2. The anti-needle puncture protective sheath according to claim 1, characterized in that, the transition slideway (6) is an arc-shaped slideway. 3. The anti-needle protection sheath according to claim 2, characterized in that, the front end of the working slideway (2) extends to the front end face of the sleeve (1), and the installation slideway (3) The front end is blind end. 4. The anti-needle protection sheath according to claim 3, characterized in that one end of the transition slideway (6) communicates with the rear end of the working slideway (2), and the transition slideway (6) ) communicates with the front end of the installation slideway (3). 5. The anti-needle protective sheath according to any one of claims 1-4, characterized in that, a first stopper protrusion is arranged between the working slide (2) and the slot (4) (7), used to abut against the venous needle handle (c) after the venous needle handle (c) slides from the working slideway (2) into the card slot (4), so as to prevent The venous needle handle (c) reversely escapes from the draw-in slot (4). 6. The anti-needle protection sheath according to claim 5, characterized in that, a second stop protrusion (8) is provided between the installation slideway (3) and the installation groove (5), After the venous needle handle (c) slides into the installation slideway (3) from the installation groove (5), it abuts against the venous needle handle (c) to prevent the venous needle handle from (c) Slide back into the mounting slot (5) in reverse. 7. The anti-needle protection sheath according to claim 6, characterized in that, the rear end of the installation groove (5) extends to the rear end face of the sleeve (1), and the installation groove (5) ) is provided with a third stop protrusion (9) at the rear end, which is used to abut against the venous needle handle (c) after the venous needle handle (c) slides into the installation groove (5), To prevent the venous needle handle (c) from detaching from the mounting groove (5) in reverse. 8. The anti-needle protection sheath according to claim 7, characterized in that, the first stop protrusion (7), the second stop protrusion (8), the third stop protrusion ( 9) All are jagged. 9. The anti-needle protection sheath according to claim 8, characterized in that, the first stopper protrusion (7) is arranged on the opposite side walls on both sides of the rear end of the working slideway (2), The second stop protrusion (8) is arranged on the opposite side walls on both sides of the rear end of the installation slideway (3), and the third stop protrusion (9) is arranged on the installation groove (5) ) on both sides of the rear end facing the groove wall. 10. The anti-acupuncture protective sheath according to claim 1, characterized in that, the front end of the sleeve (1) is provided with a guide slope (10) to guide the venous needle handle (c) to slide into the Working slides (2).