CN109453445B

CN109453445B - Medical edge tool box with needle remover

Info

Publication number: CN109453445B
Application number: CN201811552020.4A
Authority: CN
Inventors: 王乐峰; 王爽; 耿亚中
Original assignee: First Affiliated Hospital of Henan University of Science and Technology
Current assignee: First Affiliated Hospital of Henan University of Science and Technology
Priority date: 2018-12-19
Filing date: 2018-12-19
Publication date: 2020-11-13
Anticipated expiration: 2038-12-19
Also published as: CN109453445A

Abstract

The invention relates to the field of medical protective equipment, in particular to a medical sharps box with a needle remover. Comprises a box body and a needle remover; the needle dismounting device comprises a positioning baffle plate, a fixing pipe and a rotary drum, wherein a pin inserting hole is formed in the position, corresponding to the pin falling hole, of the positioning baffle plate, the fixing pipe and the rotary drum are concentrically distributed with the pin inserting hole and are arranged on one side, facing the box body, of the positioning baffle plate, the upper end of the fixing pipe is fixedly connected with the positioning baffle plate, the rotary drum is sleeved on the periphery of the fixing pipe, and external threads are formed in the upper end of the rotary drum and are installed in a matched mode with thread grooves formed in; be equipped with a plurality of supporting rods along circumference even interval on the inner wall of rotary drum, the one end and the rotary drum inner wall of supporting rod are articulated to be connected, and the other end passes and corresponds to set up and distribute in fixed intraduct behind the supported hole on fixed pipe, and all supporting rods lie in the inside one end of fixed intraduct and form the centre gripping hole that is used for centre gripping syringe needle basal portion jointly. The invention can greatly improve the safety of the disposable syringe in the needle detaching process.

Description

Medical edge tool box with needle remover

Technical Field

The invention relates to the field of medical protective equipment, in particular to a medical sharps box with a needle remover.

Background

In conventional testing or treatment, a medical worker often needs to use a disposable syringe to perform intramuscular injection treatment on a patient. With the increase of recognition degree of secondary infection and occupational hazards of medical staff, the used needle head is generally thrown into a special sharps box for storage at present, so that the infection of hematogenous spread diseases caused by accidental injury of the medical staff due to an infection source attached to the needle head is avoided.

Although this type of shielding reduces the chance of infection to a certain extent, it still can scratch the medical personnel during the removal of the needle from the syringe. In order to solve this problem, the prior art often assists in removing the needle by means of a V-shaped notch added to the sharps container. In the use process, the needle head is clamped in the V-shaped notch, then the wrist is turned to exert force to separate the needle head from the needle cylinder, the box cover of the sharps box is in a horizontal position, when the syringe is slid, the wrist of a user does not move horizontally, therefore, the needle head can be pulled out with larger force, the force is difficult to hold, the detached needle head possibly rebounds to the body of the user after splashing due to too strong force to cause scratch, and the problem that the needle head is easy to infect in the process of detaching the needle head cannot be fundamentally solved.

Disclosure of Invention

The invention aims to provide a medical sharp instrument box with a needle remover, which is used for storing the needle head of a disposable syringe and greatly improving the safety of the disposable syringe in the needle removing process.

In order to solve the technical problems, the invention adopts the technical scheme that: a medical edge tool box with a needle remover comprises a box body for accommodating a needle, wherein the top of the box body is provided with a needle falling hole; the needle dismounting device comprises a positioning baffle fixed at the top of the box body, a fixed tube fixedly arranged on the positioning baffle and a rotary drum arranged on the positioning baffle in a rotating fit manner, wherein a pin inserting hole is formed in the position, corresponding to the pin falling hole, on the positioning baffle, the aperture of the pin inserting hole is larger than the outer diameter of the base part of the needle head and smaller than the outer diameter of the needle cylinder, the fixed tube and the rotary drum are both distributed concentrically with the pin inserting hole and are arranged on one side, facing the box body, of the positioning baffle, the upper end of the fixed tube is fixedly connected with the positioning baffle, the rotary drum is sleeved on the periphery of the fixed tube, the lower end of the rotary drum is rotatably inserted in the pin falling hole, the upper end of the rotary drum is; be equipped with a plurality of supporting rods along circumference even interval on the inner wall of rotary drum, the one end and the rotary drum inner wall of supporting rod are articulated to be connected, and the other end passes to correspond to set up and distributes in fixed intraduct behind the supported hole on fixed pipe, and all supporting rods lie in the common centre gripping hole that is used for centre gripping syringe needle basal portion that forms of fixed intraduct one end, and the aperture in centre gripping hole can be followed rotary drum and fixed relative rotation between the pipe and change.

Preferably, the clamping rod is made of stainless steel materials, and the end part of the clamping rod, which is located in the fixed pipe, is fixedly provided with a clamping contact which is made of rubber materials.

Preferably, the holding contact is provided with a circular arc-shaped groove for engaging with the base of the needle.

Preferably, the positioning baffle is fixed on the top of the box body through a plurality of upright posts.

Preferably, a bearing is arranged at the position of the needle falling hole, an outer ring of the bearing is fixed with the needle falling hole, and an inner ring of the bearing is installed in sliding fit with the lower end of the rotary drum through a key structure.

Advantageous effects

The invention has simple structure and convenient use. After the completion injection, only need insert the needle hole with the syringe needle in, rotate the rotary drum again and make the rotary drum downstream, can demolish the syringe needle from the cylinder, whole needle process that tears open need not touch cylinder or syringe needle whole to improved the security that the disposable syringe torn the needle in the processing procedure greatly, effectually avoided stabbing medical personnel, guarantee occupational safety.

The invention carries out needle removal by rotating. Rotate the rotary drum in-process, the inside a plurality of supporting rods of rotary drum are convenient for the support hole and cooperate and remove, make the aperture in the centre gripping hole that a plurality of supporting rods formed diminish gradually in order to contradict the syringe needle basal portion. Continue behind the conflict syringe needle basal portion and twist the rotary drum, then can make the centre gripping hole firmly fixed with syringe needle basal portion centre gripping, produce decurrent displacement cooperation when rotating along with the rotation effect and the rotary drum of rotary drum simultaneously, make the syringe needle basal portion receive the clamping-force of many supporting rods, twist rotatory revolving force and vertical decurrent pulling force simultaneously. The needle base is acted by the matching of the three different acting forces in a bionic twisting and pulling combination mode, so that the purpose of detaching the needle from the needle cylinder is achieved. The rotary drum is overturned after the needle head is detached, the clamping force disappears, and the needle head can fall into the box body along the rotary drum. The whole needle detaching and needle head processing process is very convenient and simple, and is suitable for popularization in various hospitals and clinics.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a partially enlarged schematic view of portion A of FIG. 1;

FIG. 3 is a schematic view of the structure of FIG. 2 in a state where the rotating drum is rotated to cause the plurality of clamping rods to clamp and fix the needle base;

FIG. 4 is a sectional view taken along line B-B of FIG. 2;

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 3;

the labels in the figure are: 1. the needle comprises a needle cylinder, 2, a needle inserting hole, 3, a thread groove, 4, a clamping rod, 5, a positioning baffle, 6, a stand column, 7, a needle head base, 8, a fixing tube, 9, a rotary drum, 10, a box body, 11, a bearing, 12, a needle falling hole, 13, a clamping contact, 14 and a supporting hole.

Detailed Description

As shown in FIG. 1, a medical sharps container with a needle remover of the present invention comprises a container body 10 for accommodating a needle. The case 10 is rectangular or cylindrical and made of hard engineering plastic material or stainless steel material to prevent the sharp tip of the needle stored in the inner cavity of the case 10 from being pricked out. A needle dropping hole 12 is arranged at the top of the box body 10, and the needle can be guided into the inner cavity of the box body 10 through the needle dropping hole 12. A needle remover is arranged on the box body 10 corresponding to the position above the needle falling hole 12. The needle remover can separate the needle from the needle cylinder 1 under the condition that an operator does not touch the needle cylinder 1 and the needle, and the needle automatically falls into the box body 10 through the needle falling hole 12 under the action of gravity.

As shown in fig. 1, 2 and 3, the needle remover of the present invention mainly comprises a positioning baffle 5, a fixing tube 8, a rotating tube 9 and a plurality of clamping rods 4.

The positioning baffle 5 is a horizontally distributed strip-shaped plate, and two ends of the positioning baffle are respectively fixedly connected with the top of the box body 10 at intervals through the upright posts 6. The upright post 6 can also play the role of a handle besides the function of connection, so that medical personnel can hold the position of the upright post 6 conveniently to move the medical nursing bed. The central position of the positioning baffle 5 is provided with a pin inserting hole 2 which is concentric with the pin falling hole 12. The aperture of the needle inserting hole 2 is smaller, and is larger than the outer diameter of the needle base part 7 and smaller than the outer diameter of the needle cylinder 1, so that after the needle end of a new syringe is inserted into the needle inserting hole 2, the needle cylinder 1 is partially blocked and positioned by the positioning baffle plate 5, and the contact position between the needle cylinder 1 and the positioning baffle plate 5 can be used as a fulcrum, so that the needle remover provided by the invention can clamp, twist and pull down the needle base part 7 to detach the needle from the needle cylinder 1.

Both the fixing tube 8 and the rotary drum 9 are distributed along the vertical direction and are concentric with the pin inserting hole 2, and the fixing tube 8 and the rotary drum 9 are respectively arranged on the lower edge of the positioning baffle plate 5. The upper end of the fixed pipe 8 is fixedly connected with the positioning baffle 5 by welding. The rotating cylinder 9 is sleeved on the periphery of the fixed pipe 8 and keeps a certain gap with the outer wall of the fixed pipe 8 through the rotating cylinder 9. The lower end of the rotary drum 9 is rotatably inserted into the needle falling hole 12, and the upper end of the rotary drum 9 is provided with external threads and is matched with the thread groove 3 arranged on the positioning baffle plate 5. Through the above structure, the drum 9 can be rotated by an external force so that the drum 9 vertically moves up and down while rotating. The screw grooves 3 can also be filled with a jelly for increasing the frictional resistance in order to avoid too flexible rotation of the drum 9. A bearing 11 is arranged at the position of the needle falling hole 12, the outer ring of the bearing 11 is fixed with the needle falling hole 12, and the inner ring of the bearing 11 is installed in a sliding fit with the lower end of the rotary drum 9 through a key structure.

As shown in fig. 4 and 5, the plurality of clamping rods 4 are respectively hinged to the inner wall of the rotating cylinder 9, and the plurality of clamping rods 4 are at the same height as the hinge point of the rotating cylinder 9 and are uniformly distributed along the circumferential direction of the inner wall of the rotating cylinder 9. In this embodiment, the one end of supporting rod 4 is connected with the inner wall of rotary drum 9 with universal ball structure is articulated, and the other end of supporting rod 4 passes to correspond and sets up and distribute in fixed pipe 8 inside behind the brace hole 14 on fixed pipe 8. The ends of all the clamping rods 4 located inside the fixed tube 8 together form a clamping hole for clamping the needle base 7, and the aperture of the clamping hole can be changed along with the relative rotation between the rotary drum 9 and the fixed tube 8. In the state shown in fig. 4, the diameter of the holding hole is large enough not to hold the fixed needle base 7. When the drum 9 is rotated counterclockwise, the holding hole diameter becomes smaller as shown in fig. 5 to fix the needle base 7. The number of the supporting holes 14 is the same as that of the clamping rods 4, and the supporting holes 14 are strip-shaped holes distributed along the circumferential direction of the fixed pipe 8. The width of the supporting hole 14 is substantially the same as the outer diameter of the clamping rod 4, and the length is slightly longer than the outer diameter of the clamping rod 4, so that when the rotary drum 9 is rotated counterclockwise in the state of fig. 4, the clamping rod 4 can be pulled through the end of the supporting hole 14 in the state of generating rotary displacement and axial displacement between the rotary drum 9 and the fixed tube 8, so that the end of the clamping rod 4 located in the fixed tube 8 continues to move toward the center of the fixed tube 8 until the effect of tightly contacting and clamping the needle base 7 located in the fixed tube 8 as shown in fig. 5 is achieved.

In the specific application process of the invention: firstly, adjusting the clamping hole to the maximum, and inserting the needle end of the disposable syringe after injection is completed downwards into the needle hole 2, wherein the needle base 7 is positioned in the fixed tube 8, and the end parts of the plurality of clamping rods 4 facing to the center of the fixed tube 8 are distributed at intervals with the needle base 7. The drum 9 is then rotated counterclockwise so that the ends of the plurality of gripping shanks 4 located within the stationary tube 8 simultaneously contact the outer edge of the needle base 7 to provide a certain grip. As the drum 9 continues to rotate counterclockwise, the clamping force of the plurality of clamping rods 4 on the needle base 7 is increased, and the clamping rods 4 are firmly fixed with the needle base 7 by friction. At this time, the needle base 7 is forced by the rotation and downward movement of the drum 9 through the holding rod 4, and the looseness is generated between the needle base 7 and the cylinder 1 in a manner similar to the twisting and pulling in the bionics. The needle head and the syringe 1 of the conventional disposable syringe are fixed in a matching way through a conical interference structure made of plastic materials. During the needle detaching process, the needle and the needle cylinder 1 can be easily separated as long as slight axial looseness is generated between the needle base 7 and the needle cylinder 1, and a sound similar to a 'squeak' sound is generated before mutual looseness is generated, and at the moment, the needle cylinder 1 and the needle can be completely separated by lifting up the needle cylinder 1. Finally, the rotating drum 9 is rotated clockwise, the needle loses the clamping effect and falls into the box body 10 through the needle falling hole 12.

In this embodiment, in order to ensure the clamping strength of the clamping rod 4 to the needle base 7, the clamping rod 4 is made of stainless steel. In a preferred embodiment, the stationary tube 8 and the rotating drum 9 are both made of stainless steel material. In order to increase the friction force of the gripping lever 4 against the needle base 7, a gripping contact 13 made of a rubber material is fixedly provided at the end of the gripping lever 4 located inside the fixed tube 8. Circular arc-shaped grooves for matching with the needle base 7 are arranged on the clamping contact 13 to avoid slipping in the clamping process.

Claims

1. A medical sharps box with a needle remover is characterized in that: the needle extractor comprises a box body (10) for accommodating a needle, wherein a needle falling hole (12) is formed in the top of the box body (10), and a needle extractor for extracting the needle from a needle cylinder (1) of the injector to fall into an inner cavity of the box body (10) through the needle falling hole (12) is further arranged on the box body (10) at a position corresponding to the needle falling hole (12); the needle dismounting device comprises a positioning baffle plate (5) fixed at the top of a box body (10), a fixed tube (8) fixedly arranged on the positioning baffle plate (5) and a rotary drum (9) arranged on the positioning baffle plate (5) in a rotating fit manner, wherein the positioning baffle plate (5) is fixed at the top of the box body (10) through a plurality of stand columns (6), a needle inserting hole (2) is formed in the position, corresponding to a needle falling hole (12), on the positioning baffle plate (5), the aperture of the needle inserting hole (2) is larger than the outer diameter of a needle head base part (7) and smaller than the outer diameter of a needle cylinder (1), the fixed tube (8) and the rotary drum (9) are concentrically distributed with the needle inserting hole (2) and are arranged on one side, facing the box body (10), of the positioning baffle plate (5), the upper end of the fixed tube (8) is fixedly connected with the positioning baffle plate (5), the rotary drum (9) is sleeved on the periphery of, the upper end of the rotary drum (9) is provided with external threads and is matched and installed with the thread groove (3) arranged on the positioning baffle (5), and the rotary drum (9) can move up and down along the axial direction of the fixed pipe (8) by rotating the rotary drum (9); a plurality of clamping rods (4) are uniformly arranged on the inner wall of the rotary drum (9) at intervals along the circumferential direction, one ends of the clamping rods (4) are hinged to the inner wall of the rotary drum (9), the other ends of the clamping rods (4) penetrate through supporting holes (14) correspondingly formed in the fixed pipe (8) and then are distributed in the fixed pipe (8), clamping holes for clamping the needle head base (7) are formed at one ends of all the clamping rods (4) located in the fixed pipe (8) together, and the hole diameter of each clamping hole can change along with the relative rotation between the rotary drum (9) and the fixed pipe (8); the clamping rod (4) is made of stainless steel materials, and a clamping contact (13) made of rubber materials is fixedly arranged at the end part of the clamping rod (4) positioned in the fixed pipe (8); the clamping contact (13) is provided with a circular arc-shaped groove which is used for being matched with the needle head base part (7).

2. The medical sharps container with a needle remover as claimed in claim 1, wherein: a bearing (11) is arranged at the position of the needle falling hole (12), the outer ring of the bearing (11) is fixed with the needle falling hole (12), and the inner ring of the bearing (11) is installed in a sliding fit with the lower end of the rotary drum (9) through a key structure.