CN215534411U

CN215534411U - Blood taking needle for preventing secondary damage to blood vessel

Info

Publication number: CN215534411U
Application number: CN202121192064.8U
Authority: CN
Inventors: 王晓娣
Original assignee: Beijing Tiantan Hospital
Current assignee: Beijing Tiantan Hospital
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-01-18
Anticipated expiration: 2031-05-31

Abstract

The utility model relates to the technical field of medical instruments, in particular to a secondary injury prevention blood vessel blood taking needle which comprises a sleeve, a placing hole and a gear ring, wherein the placing hole is formed in the top of the sleeve, and the gear ring is fixed inside the sleeve. The utility model overcomes the defects of the prior art, the blood sampling needle head can be installed in a mode of embedding the opening at the top of the conical rod, the blood sampling needle head can be sealed through the sealing washer at the inner wall of the opening after being installed, the blood seepage situation of the blood sampling needle head in the blood sampling process is avoided, the conical rod can connect the conical rod with the gear ring in a mode of embedding the clamping teeth into the inner thread teeth, when the blood sampling needle head needs to be disassembled, the clamping teeth can be driven to be separated from the inner thread teeth in a rotating mode after the main needle head is twisted by one hand, so that the blood sampling needle head is disassembled, the operation is simple and convenient in the treatment process of the blood sampling needle head, and the blood infection caused by the fact that medical personnel scratch the skin by the needle head is avoided.

Description

Blood taking needle for preventing secondary damage to blood vessel

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a blood taking needle for preventing secondary injury of blood vessels.

Background

Medical instruments refer to instruments, devices, appliances, in-vitro diagnostic reagents and calibrators, materials and other similar or related items used directly or indirectly on the human body, including the required computer software.

But current prevent secondary damage blood vessel blood taking needle is in the in-service use in-process, need use both hands concurrent operation just can separate the blood sampling syringe needle, and the blood sampling needle is troublesome-operation in the processing procedure, the complicacy causes medical personnel to scratch skin by the syringe needle and causes blood infection, make the device have very big unsafe factor, be unfavorable for in-service use, and blood sampling needle holder is after repetitious usage, the junction of sleeve pipe and needle holder produces easily not hard up, in the blood sampling in-process, the sleeve pipe easily drops, do not well control sleeve pipe upper end blood sampling syringe needle diversion removal problem in the blood sampling in-process, thereby also do not well control the operating condition of blood sampling needle, bring the potential safety hazard to patient's blood sampling.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a secondary damage prevention blood vessel blood taking needle, which overcomes the defects of the prior art, has simple structural design, and effectively solves the problems that the existing secondary damage prevention blood vessel blood taking needle needs to be operated by both hands simultaneously to separate a blood taking needle head in the actual use process, the operation is troublesome in the blood taking needle treatment process, medical staff is easy to scratch the skin by the needle head to cause blood infection due to complex operation, so that the device has great unsafe factors and is not beneficial to actual use, and the connection part of a sleeve and a needle holder is easy to loosen after the blood taking needle holder is used for a plurality of times, the sleeve is easy to fall off in the blood taking process, the problem that the blood taking needle head is difficult to control to move in the blood taking process is solved, so that the working state of the blood taking needle is not well controlled, and potential safety hazards are brought to the blood taking of a patient.

In order to solve the technical problems, the utility model provides the following technical scheme:

a blood taking needle for preventing secondary injury of blood vessels comprises a sleeve, a placement hole and a gear ring, wherein the placement hole is formed in the top of the sleeve, and the gear ring is fixed inside the sleeve;

the blood sampling device is characterized in that a conical rod is connected to the inner portion of the gear ring in an embedded mode, a blood sampling needle head is installed at the top of the conical rod, a needle holder is embedded in the surface of the sleeve, and a locking device is fixed to the upper end of the needle holder.

As a preferable technical scheme of the utility model, the upper end of the interior of the gear ring is provided with recessed inner-thread teeth which are distributed in an equidistant surrounding manner, the gear ring is positioned at the center of the interior of the sleeve, and the bottom of the cross section of the gear ring is in a closed-up shape.

As a preferable technical scheme of the utility model, the upper end of the conical rod is provided with clamping teeth, the clamping teeth are meshed with the inner thread teeth to be connected, the middle of the top of the conical rod is provided with a concave round opening, and the inner wall of the opening is provided with a sealing gasket.

As a preferable technical scheme of the utility model, the surfaces of the left side and the right side of the needle holder are respectively provided with a taking pad, the surface of each taking pad is provided with transverse wear-resistant grains which are longitudinally distributed in an equidistant arrangement mode, and the bottom of the sleeve is connected with the needle holder in an embedded mode.

As a preferable technical scheme of the present invention, the outer ring of the locker is provided with a slack valve, the locker is hollow, the inner wall of the locker is provided with a clamping piece which is embedded, and the clamping piece is divided into two halves.

As a preferred technical scheme of the utility model, one end of the blood sampling needle head is in a sharp inclined plane shape, the bottom of the blood sampling needle head is in close fit connection with the opening, and the inner wall of the sleeve is fitted with a sealing gasket.

The embodiment of the utility model provides a secondary injury prevention blood vessel taking needle, which has the following beneficial effects: need not use both hands concurrent operation just can separate the blood sampling syringe needle, and it is easy and simple to handle in the blood sampling needle course of treatment, avoid appearing causing medical personnel to cause blood infection because of being lacerated skin by the syringe needle, effectively reduce the unsafe factor that the device exists, be favorable to in-service use, and blood sampling needle holder is after repetitious usage, the sleeve pipe is difficult to produce not hard up with the junction of holder, the sleeve pipe is difficult for droing at the blood sampling in-process, effectively solve not well control sleeve pipe upper end blood sampling syringe needle diversion removal problem at the blood sampling in-process, reduce the device and bring the safety hidden danger when taking a blood sample to the patient.

1. Set up the chucking tooth through the toper pole, trompil and seal ring, make the blood sampling syringe needle install the blood sampling syringe needle through the mode of embedding toper pole top trompil, and the blood sampling syringe needle seals through the seal ring of trompil inner wall department after the installation is accomplished, avoid the blood sampling syringe needle the condition of oozing blood in the blood sampling in-process appearance, and the toper pole can link up the toper pole with the ring gear through the mode with the interior line tooth of chucking tooth embedding, can drive chucking tooth and interior line tooth separation through the pivoted mode behind the main syringe needle through the singlehanded when needs dismantle the blood sampling syringe needle, thereby dismantle the blood sampling syringe needle, make blood sampling syringe needle processing in-process easy and simple to handle, avoid causing medical personnel because of being lacerated skin by the syringe needle and cause blood infection, effectively reduce the unsafe factor that the device exists.

2. Set up elasticity valve and holding piece through the locker, mode through anticlockwise rotation elasticity valve can drive the holding piece and contract, make the inside that the sleeve pipe can imbed the locker completely, it can kick-back the holding piece to carry out clockwise rotation with the elasticity valve again after the sleeve pipe installation is accomplished, make the inside of the embedding needle holder that the sleeve pipe can be firm, make blood taking needle holder after repetitious usage, the sleeve pipe is difficult to produce not hard up with the junction of needle holder, the sleeve pipe is difficult for droing in the blood sampling process, effectively solve not well control sleeve pipe upper end blood sampling syringe needle and move the problem at the blood sampling in-process diversion, reduce and take safety hidden danger when the device takes a blood sample to the patient.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

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

FIG. 2 is a schematic view of a tapered rod configuration of the present invention;

FIG. 3 is a schematic view of the structure of the needle holder of the present invention.

In the figure: 1. a sleeve; 2. placing the hole; 3. a ring gear; 301. inner thread teeth; 4. a tapered rod; 401. clamping the teeth; 402. opening a hole; 403. a sealing gasket; 5. a blood collection needle head; 6. a needle holder; 601. taking the pad; 602. wear-resistant lines; 7. a locker; 701. a slack valve; 702. and a clamping piece.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-3, a blood collection needle for preventing secondary injury comprises a sleeve 1, a placement hole 2 and a gear ring 3, wherein the placement hole 2 is arranged at the top of the sleeve 1, and the gear ring 3 is fixed inside the sleeve 1;

the gear ring 3 is internally embedded and connected with a conical rod 4, the top of the conical rod 4 is provided with a blood sampling needle head 5, the surface of the sleeve 1 is embedded with a needle holder 6, and the upper end of the needle holder 6 is fixed with a locker 7.

The upper end of the interior of the gear ring 3 is provided with recessed inner-thread teeth 301 which are distributed in an equidistant surrounding manner, the gear ring 3 is positioned at the center of the interior of the sleeve 1, and the bottom of the cross section of the gear ring 3 is in a closed-up shape;

in the embodiment, through the design, the conical rod 4 can be arranged at the center of the sleeve 1, so that the blood sampling needle head 5 at the front end of the conical rod 4 is stressed uniformly when puncturing the surface of the skin, secondary damage to the skin of the epidermis of a patient is not easy to cause, and the practical use is facilitated.

The upper end of the conical rod 4 is provided with clamping teeth 401, the clamping teeth 401 are meshed with the inner thread teeth 301, a concave circular opening 402 is formed in the middle of the top of the conical rod 4, and a sealing gasket 403 is arranged on the inner wall of the opening 402;

in this embodiment, the blood sampling needle 5 can be mounted by inserting the blood sampling needle 5 into the opening 402 at the top of the tapered rod 4, and the blood sampling needle head 5 can be sealed by the sealing washer 403 on the inner wall of the opening 402 after the installation is finished, so as to avoid the blood seepage of the blood sampling needle head 5 in the blood sampling process, and the tapered rod 4 can engage the tapered rod 4 with the ring gear 3 by fitting the chucking teeth 401 into the female teeth 301, when the blood sampling needle head 5 needs to be disassembled, the clamping teeth 401 can be driven to be separated from the inner thread teeth 301 in a rotating mode after the main needle head is twisted by a single hand, therefore, the blood sampling needle head 5 is detached, the operation is simple and convenient in the treatment process of the blood sampling needle head 5, the blood infection caused by the fact that medical workers scratch the skin by the needle head is avoided, and the unsafe factors of the device are effectively reduced.

Wherein, the surfaces of the left side and the right side of the needle holder 6 are both provided with a taking pad 601, the surface of the taking pad 601 is provided with transverse wear-resistant grains 602 which are longitudinally distributed in an equidistant arrangement manner, and the bottom of the sleeve 1 is connected with the needle holder 6 in an embedded manner;

in this embodiment, through this kind of design, medical personnel can be through holding between the fingers the handheld needle holder 6 of the mode of taking pad 601 with thumb and forefinger, and the surface through taking pad 601 is equipped with the design of the horizontal wear-resisting line 602 that vertical equidistance was arranged the form and is distributed moreover, can strengthen medical personnel's finger and the frictional force when taking pad 601 contact, avoid appearing needle holder 6 and take off the hand, and the medical personnel of being convenient for puncture.

The outer ring of the locker 7 is provided with a strainer 701, the interior of the locker 7 is hollow, the inner wall of the locker 7 is provided with a clamping sheet 702 which is embedded, and the clamping sheet 702 is divided into two halves;

in this embodiment, through this kind of design, mode through anticlockwise rotation elasticity valve 701 can drive clamping piece 702 and contract, make sleeve pipe 1 can imbed the inside of locker 7 completely, carry out clockwise rotation with elasticity valve 701 again and can kick-back clamping piece 702 after the installation of sleeve pipe 1 is accomplished, make the inside of embedding needle holder 6 that sleeve pipe 1 can be firm, make needle holder 6 after repetitious usage, the difficult production of the junction of sleeve pipe 1 and needle holder 6 is not hard up, sleeve pipe 1 is difficult for droing at the blood sampling in-process, effectively solve not good control sleeve pipe 1 upper end blood sampling syringe needle 5 at the blood sampling in-process diversion removal problem, reduce the device and bring safety hidden danger when taking a blood sample to the patient.

Wherein, one end of the blood sampling needle head 5 is in a sharp inclined plane, the bottom of the blood sampling needle head 5 is in close fit connection with the opening 402, and the inner wall of the sleeve 1 is fitted with a sealing gasket 403;

in this embodiment, through this kind of design for blood sampling syringe needle 5 can pierce patient's skin relatively rapidly, reduces the painful sense of patient at the in-process of drawing blood, has the design of seal ring 403 through the inner wall laminating of sleeve pipe 1 moreover, ensures the inside closure of sleeve pipe 1, avoids the bacterium among the outside air to get into the inside of sleeve pipe 1 and causes blood to produce the pollution, is favorable to in-service use.

The working principle is as follows: because the interior of the sleeve 1 is hollow, the blood sampling needle head 5 can be preliminarily positioned by being inserted into the front end mounting hole 2 of the sleeve 1, and the blood sampling needle head 5 can be installed by embedding the tail end of the blood sampling needle head into the open hole 402 at the top of the conical rod 4, and the blood sampling needle head 5 can be sealed by the sealing washer 403 at the inner wall of the open hole 402 after the installation is finished, so that the blood seepage condition of the blood sampling needle head 5 in the blood sampling process is avoided, and the conical rod 4 can connect the conical rod 4 with the gear ring 3 by embedding the clamping teeth 401 into the inner thread teeth 301, when the blood sampling needle head 5 needs to be disassembled, the clamping teeth 401 can be driven to be separated from the inner thread teeth 301 by rotating after the main needle head is twisted by one hand, so that the blood sampling needle head 5 can be disassembled, the operation is simple and convenient in the treatment process, and the blood infection of medical workers caused by the skin being scratched by the needle head is avoided, the unsafe factors existing in the device are effectively reduced, the blood sampling tube can be connected with the tail end of the blood sampling needle head 5 by embedding one end into the sleeve 1, so that the blood led out by the blood sampling needle head 5 can flow into the blood sampling tube, the clamping piece 702 can be driven to contract by rotating the elasticity valve 701 anticlockwise, the sleeve 1 can be completely embedded into the locker 7, the clamping piece 702 can be rebounded by rotating the elasticity valve 701 clockwise after the sleeve 1 is installed, the sleeve 1 can firmly clamp the blood sampling needle and can be firmly embedded into the needle holder 6, the needle holder 6 is not easy to loosen at the joint of the sleeve 1 and the needle holder 6 after being used for many times, the sleeve 1 is not easy to fall off in the blood sampling process, and the problem that the direction change movement of the blood sampling needle head 5 at the upper end of the sleeve 1 is not easy to control in the blood sampling process is effectively solved, the safety hidden trouble caused when the device collects blood for a patient is reduced, and when the blood collection tube needs to be replaced, the sleeve 1 can be taken out from the inside of the needle holder 6 in a mode of loosening the elastic valve 701 to complete the replacement work.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be 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 by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. 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

1. A blood taking needle for preventing secondary injury of blood vessels comprises a sleeve (1), a placement hole (2) and a gear ring (3), and is characterized in that the placement hole (2) is formed in the top of the sleeve (1), and the gear ring (3) is fixed inside the sleeve (1);

the blood sampling device is characterized in that a conical rod (4) is embedded and connected inside the gear ring (3), a blood sampling needle head (5) is installed at the top of the conical rod (4), a needle holder (6) is embedded on the surface of the sleeve (1), and a locker (7) is fixed at the upper end of the needle holder (6).

2. The blood collection needle for preventing secondary injury according to claim 1, characterized in that the inner upper end of the gear ring (3) is provided with concave inner-thread teeth (301) distributed around at equal intervals, the gear ring (3) is positioned at the inner center of the sleeve (1), and the cross-section bottom of the gear ring (3) is in a closed-up shape.

3. The blood collection needle for preventing secondary injury blood vessels of claim 1, wherein the upper end of the conical rod (4) is provided with a clamping tooth (401), the clamping tooth (401) is engaged with the inner thread tooth (301), the middle of the top of the conical rod (4) is provided with a concave circular opening (402), and the inner wall of the opening (402) is provided with a sealing gasket (403).

4. The blood collection needle for preventing secondary injury according to claim 1, wherein the left and right side surfaces of the needle holder (6) are provided with taking pads (601), the surfaces of the taking pads (601) are provided with transverse wear-resistant lines (602) which are distributed in a longitudinal equidistant arrangement manner, and the bottom of the sleeve (1) is engaged with the needle holder (6) in an embedded manner.

5. The secondary damage prevention blood lancet according to claim 1, wherein a release valve (701) is installed at an outer ring of the locker (7), the locker (7) has a hollow interior, a clamping piece (702) is installed at an inner wall of the locker (7) in an embedded manner, and the clamping piece (702) is divided into halves.

6. The anti-secondary-injury blood collection needle according to claim 1, wherein one end of the blood collection needle (5) is in a sharp inclined plane shape, the bottom of the blood collection needle (5) is closely attached to the opening (402), and a sealing gasket (403) is attached to the inner wall of the sleeve (1).