CN112891684B

CN112891684B - Closed-loop type waste medical syringe needle treatment device

Info

Publication number: CN112891684B
Application number: CN202110066530.6A
Authority: CN
Inventors: 张峰
Original assignee: Jiangsu Kangkang Classmate Technology Co ltd
Current assignee: Jiangsu Kangkang Classmate Technology Co ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2022-12-23
Anticipated expiration: 2041-01-19
Also published as: CN112891684A

Abstract

The invention relates to a closed-loop type waste medical syringe needle treatment device, and belongs to the field of medical instruments. The needle bar fixing device comprises a slide bar, wherein a slide sleeve is sleeved on the slide bar, a fixed handle is fixed at the tail end of the slide bar, a movable handle is fixed on the slide sleeve, the fixed handle corresponds to the movable handle in position, a transverse U-shaped limiting frame is fixed on the slide sleeve, limiting grooves are respectively arranged on two inner walls of the limiting frame, the two grooves correspond in position, the inner width of the limiting frame corresponds to the diameter of a needle bolt, the distance between the two grooves corresponds to the diameter of an annular bulge on a needle stem, and the opening end of the limiting frame extends out of the slide sleeve. The needle point of the needle head is hidden in the pintle of the needle head to form a closed loop, the needle head is not easy to draw out, the structure is simple, the use is convenient, the exposed sharp part is avoided, the possibility of being scratched by the needle point is thoroughly avoided, and the risk of infection of medical staff is avoided.

Description

Closed-loop type waste medical syringe needle treatment device

Technical Field

The invention relates to a closed-loop type waste medical syringe needle treatment device, and belongs to the field of medical instruments.

Background

The medical garbage generated is increased with the use of a large amount of disposable medical supplies, the medical garbage and waste articles are reasonable, and the harmless treatment is serious and urgent, according to the suggestion, the first waste is the medical garbage, and the most infectious 5 waste products in the medical garbage are the needles, the needles stab the fingers to infect hepatitis B, AIDS and the like, and the related data statistics shows that 10-30 percent of medical staff stabbed by the waste needles account for the treatment of the waste needles. For disposable transfusion needles, injection needles, blood collection needles, etc. used by patients, the conventional common treatment method is to place the disposable transfusion needles, injection needles, blood collection needles, etc. in a fixed medical garbage recycling box, and then the disposable transfusion needles, injection needles, blood collection needles, etc. are recycled and sterilized by a specially-assigned person and then are destroyed. However, there are some problems in this process: when operators put the needles in the medical waste recycling bin, the needles can be punctured, and cross infection is caused; the needles which are placed in the dustbin are placed disorderly, and even the thick plastic bags are used for placing the needles, the needles can easily stab the transport personnel.

Needles typically need to be collected from the user or individual hospital hands for intensive disposal, requiring multiple turns in the process, risking stab infection on the recovery personnel. At present, the treatment of the needle head comprises methods of putting the needle head into a recovery container, cutting or bending, and the like, but the possibility of being punctured by the needle head cannot be completely eradicated, particularly the cutting operation, although the cutting operation can avoid the needle head from being reused by lawless persons, a sharp corner is formed on the section, and the risk that a recovery person is scratched is increased. In other words, as long as the needle tip of the needle is still exposed, the possibility of infection of the recovery personnel by puncture of the needle tip cannot be avoided.

Disclosure of Invention

According to the defects in the prior art, the technical problems to be solved by the invention are as follows: the utility model provides a closed loop formula abandonment medical syringe needle processing apparatus hides the needle point of syringe needle in the pintle of syringe needle oneself, forms the closed loop to the syringe needle is difficult to take out, simple structure, and convenient to use does not have and exposes sharp-pointed part, has thoroughly stopped by the possibility of needle point fish tail, has avoided medical personnel to be infected the risk.

The invention relates to a closed-loop type waste medical syringe needle treatment device, which comprises a sliding rod, wherein a sliding sleeve is sleeved on the sliding rod, a fixed handle is fixed at the tail end of the sliding rod, a movable handle is fixed on the sliding sleeve, the fixed handle corresponds to the movable handle in position, a transverse U-shaped limiting frame is fixed on the sliding sleeve, limiting grooves are respectively arranged on two inner walls of the limiting frame, the positions of the two grooves correspond to each other, the inner width of the limiting frame corresponds to the diameter of a pintle, the distance between the two grooves corresponds to the diameter of an annular bulge on a needle stem, and the opening end of the limiting frame extends out of the sliding sleeve;

the novel needle bar inserting device comprises an ejector rod, wherein the diameter of the ejector rod is smaller than the inner diameter of a needle bolt, the ejector rod is fixed on a vertical block, the vertical block is fixed on the upper surface of a sliding rod, the ejector rod and the needle bolt are coaxial when the needle bolt is abutted to a groove of a limiting frame, the front end of the ejector rod is wedge-shaped, the wedge bottom of the ejector rod is parallel to the upper surface of the sliding rod, and a notch is formed in the wedge bottom of the ejector rod.

The working principle and the process are as follows:

the fixed handle and the movable handle are simultaneously held by one hand, after the injector is used, the needle head is clamped into the limiting frame, when the needle head is clamped into the limiting frame, the bulge on the pintle is clamped into the groove of the limiting frame, so that the axial direction of the needle head is fixed, the needle cylinder is pulled backwards at the moment, the needle cylinder is separated from the needle head, then the needle head is enabled to slide to the bottom of the limiting frame, and the ejector rod is coaxial with the pintle at the moment. In the separation process, the needle head is not required to be contacted by hands, so that the risk that the hands are stabbed and infected is effectively avoided. The front part of the needle stalk is clamped by a clamp and then bent backwards, so that the tip end of the needle stalk is abutted against the slide rod, the front part of the needle stalk is positioned between the ejector rod and the needle bolt, then the fixed handle and the movable handle are held tightly, the needle bolt moves towards the ejector rod, the needle stalk is clamped into the notch, then the needle stalk is bent at the notch, finally, the bent part of the needle stalk is abutted into the needle bolt by the ejector rod, at the moment, the needle tip of the needle stalk is in a barb shape, and the needle tip is abutted against the inner wall of the needle bolt. Because the needle point faces the outside of the needle stem, the needle stem is pulled outwards, and the needle point can pierce the inner wall of the pintle and can not be pulled out. Therefore, the needle tip can be effectively prevented from being hidden by utilizing the structural characteristics of the needle head, the needle stem cannot be pulled out even by external force or the elasticity of the needle stem, the possibility of being scratched by the needle tip is thoroughly avoided, and the risk of infection of medical staff is avoided.

The movable handle and the fixed handle are connected through a spring. Thus, after the work is finished, the movable handle and the fixed handle can be automatically reset.

Including the grip block, the grip block front end sets up the crack, and the splint front end sets up the notch, and the notch is perpendicular with the crack, and the width and the needle stalk diameter of crack correspond, and the notch degree of depth is greater than the crack degree of depth, and the distance of notch bottom and crack bottom is greater than the radius of ejector pin, and the width of notch is greater than the diameter of ejector pin. The front end of the needle stem is clamped at the front end of the needle stem, the needle stem is abutted to the bottom of the seam, then the front end of the needle stem is bent to a position between the ejector rod and the needle plug through the turning clamping plate, then the fixed handle and the movable handle are tightly held, the needle plug moves towards the ejector rod, the needle stem is clamped into the notch, then the needle stem is bent at the notch, finally the ejector rod enables the bent part of the needle stem to be ejected into the needle plug, the needle point of the needle stem is in a barb shape at the moment, and the needle point is abutted to the inner wall of the needle plug. The mode through the grip block is convenient and fast more, can make things convenient for the position of location needle stalk simultaneously. If the needle stalk is bent and the needle stalk slips with the crack, the needle stalk is pushed up on the lower surfaces of the table plate and the like, so that the needle tip is always in contact with the slide rod, and the needle stalk is prevented from being pulled out. The distance between the bottom of the notch and the bottom of the crack is larger than the radius of the ejector rod, so that the ejector rod is prevented from being blocked by the clamping plate.

The right side of the clamping plate is provided with a blocking plate, the distance from the blocking plate to the central line of the notch is less than the depth of the pintle, and when the blocking plate is contacted with the sliding rod, the axis of the pintle is intersected with and perpendicular to the central line of the notch. The needle stem is pressed against the blocking plate, the distance from the blocking plate to the central line of the notch is smaller than the depth of the needle plug, when the blocking plate is contacted with the sliding rod, the axis of the needle plug is intersected and vertical with the central line of the notch, the needle stem is bent at the central line of the notch, so that the bent part at the tip of the needle stem can completely enter the needle plug, the needle tip can be pressed against the inner wall of the needle plug, the needle stem is prevented from being pulled out, the needle stem can be conveniently positioned, and the operation is simple.

The locating lever is perpendicularly fixed to the outer side of the blocking plate, the axis of the locating lever coincides with the seam bottom of the crack, a counter bore is formed in the upper surface of the sliding rod and matched with the locating lever, after the locating lever is inserted into the counter bore, the axis of the needle plug intersects with and is perpendicular to the central line of the notch, and the front end of the needle stem intersects with and is perpendicular to the axis of the needle stem. The needle stem can be conveniently and quickly positioned by matching the positioning rod with the counter bore, so that the ejection operation of the ejector rod is facilitated, and errors are avoided.

The bottom of the positioning rod is conical. The conical surface of the positioning rod forms a guide surface, so that the positioning rod can be conveniently inserted into the counter bore.

The sliding rod is a square rod, and the sliding sleeve is a square sleeve matched with the sliding rod. Therefore, the sliding rod and the sliding sleeve can be prevented from rotating relatively.

Compared with the prior art, the invention has the beneficial effects that:

according to the closed-loop type waste medical syringe needle treatment device, the needle stem is bent at the notch, and finally the bent part of the needle stem is pushed into the needle plug by the ejector rod, at the moment, the needle point of the needle stem is in the shape of a barb, and the needle point is abutted against the inner wall of the needle plug. Because the needle point faces the outside of the needle stem, the needle stem is pulled outwards, and the needle point can pierce the inner wall of the pintle and can not be pulled out. Therefore, the needle can effectively avoid hiding the needle point by utilizing the structural characteristics of the needle head, the needle stem cannot be pulled out even by external force or the elasticity of the needle stem, the possibility of being scratched by the needle point is thoroughly avoided, and the risk of infection of medical personnel is avoided. The needle point of the needle head is hidden in the pintle of the needle head to form a closed loop, the needle head is not easy to draw out, the structure is simple, the use is convenient, the exposed sharp part is avoided, the possibility of being scratched by the needle point is thoroughly avoided, and the risk of infection of medical personnel is avoided.

Drawings

FIG. 1 is a schematic view of an embodiment of the present invention (needle stalk is not bent);

FIG. 2 is a top view of the embodiment shown in FIG. 1;

FIG. 3 is a schematic view of an embodiment of the present invention (needle stem bending);

FIG. 4 isbase:Sub>A schematic cross-sectional view of the embodiment A-A shown in FIG. 2;

FIG. 5 is a schematic view of the needle stem tip being received into the pintle after completion of operation in accordance with an embodiment of the present invention;

FIG. 6 is a partial enlarged view of embodiment B of FIG. 3;

FIG. 7 is an enlarged view of a portion of the stem lifter of the embodiment of FIG. 2;

FIG. 8 is a schematic cross-sectional view of the embodiment C-C shown in FIG. 6.

In the figure: 1. a fixed handle; 2. a spring; 3. a handle is moved; 4. a slide bar; 5. erecting a block; 6. a top rod; 7. a counter bore; 8. a groove; 9. a limiting frame; 10. a pintle; 11. needle peduncle; 12. a notch; 13. a clamping plate; 14. a recess; 15. a blocking plate; 16. positioning a rod; 17. a sliding sleeve; 18. performing crack filling; 19. and (4) protruding.

Detailed Description

Embodiments of the invention are further described below with reference to the accompanying drawings:

as shown in fig. 1-8, the needle head processing device of the closed-loop type waste medical injector of the present invention comprises a sliding rod 4, a sliding sleeve 17 is sleeved on the sliding rod 4, a fixed handle 1 is fixed at the tail end of the sliding rod 4, a movable handle 3 is fixed on the sliding sleeve 17, the fixed handle 1 corresponds to the movable handle 3, a transverse U-shaped limiting frame 9 is fixed on the sliding sleeve 17, two inner walls of the limiting frame 9 are respectively provided with a limiting groove 8, the positions of the two grooves 8 correspond, the inner width of the limiting frame 9 corresponds to the diameter of a pintle 10, the distance between the two grooves 8 corresponds to the diameter of an annular bulge 19 on a needle stem 11, and the opening end of the limiting frame 9 extends out of the sliding sleeve 17;

the device comprises an ejector rod 6, wherein the diameter of the ejector rod 6 is smaller than the inner diameter of a pintle 10, the ejector rod 6 is fixed on a vertical block 5, the vertical block 5 is fixed on the upper surface of a slide rod 4, the ejector rod 6 is coaxial with the pintle 10 when the pintle 10 abuts against the groove of a limiting frame 9, the front end of the ejector rod 6 is in a wedge shape, the wedge bottom of the ejector rod is parallel to the upper surface of the slide rod 4, and a notch 12 is arranged at the wedge bottom of the ejector rod 6.

The working principle and the process are as follows:

holding simultaneously on one hand and deciding handle 1 and moving handle 3, the syringe uses up the back, goes into spacing 9 with the syringe needle card, when the card, goes into the recess 8 of spacing 9 with the arch 19 card on the pintle 10, and the axial direction of syringe needle just is fixed like this, draws the cylinder after this moment, with cylinder and syringe needle separation, then lets the syringe needle landing to spacing 9 bottoms, and ejector pin 6 is coaxial with pintle 10 this moment. In the separation process, the hands do not need to contact the needle head, and the risk that the hands are stabbed and infected is effectively avoided. The front part of the needle stalk 11 is clamped by a pliers and then bent backwards, so that the tip end of the needle stalk 11 is abutted against the sliding rod 4, the front part of the needle stalk 11 is positioned between the ejector rod 6 and the pintle 10, then the fixed handle 1 and the movable handle 3 are tightly held, the pintle 10 moves towards the ejector rod 6, the needle stalk 11 is clamped into the notch 12, then the needle stalk 11 is bent at the notch 12, finally, the bent part of the needle stalk 11 is abutted into the pintle 10 by the ejector rod 6, at the moment, the needle point of the needle stalk 11 is in a barb shape, and the needle point is abutted against the inner wall of the pintle 10. Since the needle point is directed to the outside of the needle stem 11, the needle stem 11 is pulled out, and the needle point will penetrate the inner wall of the pintle 10 and cannot be pulled out. Therefore, the hidden needle point can be effectively avoided by utilizing the structural characteristics of the needle head, the needle stem 11 can not be pulled out even if external force or the self elasticity of the needle stem 11 is used, the possibility of being scratched by the needle point is thoroughly avoided, and the risk of infection of medical staff is avoided.

The movable handle 3 is connected with the fixed handle 1 through a spring 2. Thus, after the work is finished, the movable handle 3 and the fixed handle 1 can be automatically reset.

The needle holder comprises a clamping plate 13, wherein a crack 18 is arranged at the front end of the clamping plate 13, a notch 14 is arranged at the front end of the clamping plate, the notch 14 is perpendicular to the crack 18, the width of the crack 18 corresponds to the diameter of a needle stem 11, the depth of the notch 14 is greater than that of the crack 18, the distance between the bottom of the notch 14 and the bottom of the crack 18 is greater than the radius of a mandril 6, and the width of the notch 14 is greater than the diameter of the mandril 6. The front end of a seam 18 is clamped at the front end of a needle stem 11, the needle stem 11 is abutted against the seam bottom of the seam 18, then the front end of the needle stem 11 is bent to be between a top rod 6 and a pintle 10 through a bent clamping plate 13, then a fixed handle 1 and a movable handle 3 are tightly held, the pintle 10 moves towards the top rod 6, the needle stem 11 is clamped into a notch 12, the needle stem 11 is bent at the notch 12, finally the bent part of the needle stem 11 is abutted into the pintle 10 through the top rod 6, the needle point of the needle stem 11 is in a barb shape, and the needle point is abutted against the inner wall of the pintle 10. The mode through grip block 13 is convenient and fast more, can conveniently fix a position the position of needle stalk 11 simultaneously. If the needle stalk 11 slips after being bent, the needle stalk 11 is pushed on the lower surface of a table plate and the like, so that the needle tip is always contacted with the slide rod 4, and the needle stalk 11 is prevented from being pulled out. The distance between the bottom of the notch 14 and the bottom of the crack 18 is larger than the radius of the mandril 6, so that the clamping plate 13 is prevented from forming obstruction on the mandril 6.

The right side of the holding plate 13 is provided with a blocking plate 15, the distance from the blocking plate 15 to the central line of the notch 14 is less than the depth of the pintle 10, and when the blocking plate 15 is contacted with the sliding rod 4, the axis of the pintle 10 is intersected with and vertical to the central line of the notch 14. The sharp end of the needle stalk 11 is propped against the blocking plate 15, the distance from the blocking plate 15 to the central line of the notch 14 is less than the depth of the needle plug 10, when the blocking plate 15 is contacted with the sliding rod 4, the axial line of the needle plug 10 is intersected and vertical with the central line of the notch 14, and the needle stalk 11 is just bent at the central line of the notch 14, so that the bent part at the sharp end of the needle stalk 11 can completely enter the needle plug 10, the needle point can be propped against the inner wall of the needle plug 10, the needle stalk 11 is prevented from being pulled out, and meanwhile, the needle stalk 11 can be conveniently positioned, so that the operation is simple.

A positioning rod 16 is vertically fixed on the outer side of the blocking plate 15, the axis of the positioning rod 16 is overlapped with the seam bottom of the seam 18, a counter bore 7 is arranged on the upper surface of the sliding rod 4, the counter bore 7 is matched with the positioning rod 16, after the positioning rod 16 is inserted into the counter bore 7, the axis of the pintle 10 is intersected and vertical with the central line of the notch 14, and the front end of the needle stem 11 is intersected and vertical with the axis of the needle stem 11. The position of the needle stem 11 can be conveniently and quickly positioned by matching the positioning rod 16 with the counter bore 7, so that the ejection operation of the ejector rod 6 is facilitated, and errors are avoided.

The bottom of the positioning rod 16 is conical. The conical surface of the positioning rod forms a guide surface, so that the positioning rod 16 can be conveniently inserted into the counter bore 7.

The sliding rod 4 is a square rod, and the sliding sleeve 17 is a square sleeve matched with the sliding rod. This prevents the slide rod 4 from rotating relative to the slide sleeve 17.

These and other changes can be made to the present apparatus with reference to the above detailed description. While the above detailed description describes certain embodiments of the invention and describes the best mode contemplated, no matter how detailed the above appears in text, the system can be practiced in many ways. The details of the locally-based support device, although considerable variation in its implementation details is possible, are nevertheless contained within the device disclosed herein. As noted above, particular technical terms used in describing particular features or aspects of the present apparatus do not imply that the terms are redefined herein to be restricted to specific characteristics, features, or aspects of the system with which the terms are associated. In general, the terms used in the following claims should not be construed to limit the system to the specific embodiments disclosed in the specification, unless the above detailed description section explicitly defines such terms. Accordingly, the actual scope of the system encompasses not only the disclosed embodiments, but also all equivalent ways of practicing or implementing the apparatus covered by the claims.

Claims

1. The utility model provides a closed-loop discarded medical syringe needle processing apparatus which characterized in that: the needle bar fixing device comprises a sliding rod (4), a sliding sleeve (17) is sleeved on the sliding rod (4), a fixed handle (1) is fixed at the tail end of the sliding rod (4), a movable handle (3) is fixed on the sliding sleeve (17), the fixed handle (1) corresponds to the movable handle (3) in position, a transverse U-shaped limiting frame (9) is fixed on the sliding sleeve (17), limiting grooves (8) are respectively arranged on two inner walls of the limiting frame (9), the two grooves (8) correspond in position, the inner width of the limiting frame (9) corresponds to the diameter of a needle bolt (10), the distance between the two grooves (8) corresponds to the diameter of an annular bulge (19) on a needle stem (11), and the open end of the limiting frame (9) extends out of the sliding sleeve (17);

the device comprises an ejector rod (6), wherein the diameter of the ejector rod (6) is smaller than the inner diameter of a pintle (10), the ejector rod (6) is fixed on a vertical block (5), the vertical block (5) is fixed on the upper surface of a sliding rod (4), the ejector rod (6) is coaxial with the pintle (10) when the pintle (10) abuts against the groove of a limiting frame (9), the front end of the ejector rod (6) is wedge-shaped, the wedge bottom of the ejector rod is parallel to the upper surface of the sliding rod (4), and a notch (12) is formed in the wedge bottom of the ejector rod (6);

the fixed handle (1) and the movable handle (3) are simultaneously held by one hand, after the injector is used, a needle head is clamped into the limiting frame (9), when the needle head is clamped, the bulge (19) on the pintle (10) is clamped into the groove (8) of the limiting frame (9), so that the axial direction of the needle head is fixed, the needle cylinder is pulled backwards at the moment, the needle cylinder is separated from the needle head, the needle head slides to the bottom of the limiting frame (9), the ejector rod (6) is coaxial with the pintle (10), the front part of the pintle (11) is clamped by a clamp and then bends backwards, the tip of the pintle (11) is abutted against the sliding rod (4), the front part of the pintle (11) is positioned between the ejector rod (6) and the pintle (10), then the fixed handle (1) and the movable handle (3) are tightly held, the pintle (10) moves towards the ejector rod (6), the pintle (11) is clamped into the notch (12), the pintle (11) is bent at the notch (12), and finally the pintle (6) is inverted into the needle tip of the needle head (10) and abuts against the inner wall of the needle stem (10).

2. The closed loop waste medical syringe needle disposal device of claim 1, wherein: the movable handle (3) is connected with the fixed handle (1) through a spring (2).

3. The closed loop waste medical syringe needle disposal device of claim 1 wherein: including grip block (13), grip block (13) front end sets up crack (18), the splint front end sets up notch (14), notch (14) are perpendicular with crack (18), the width and the needle stalk (11) diameter of crack (18) correspond, notch (14) degree of depth is greater than crack (18) degree of depth, the distance of notch (14) bottom and crack (18) bottom is greater than the radius of ejector pin (6), the width of notch (14) is greater than the diameter of ejector pin (6).

4. The closed loop waste medical syringe needle disposal device of claim 3, wherein: the front end of a needle stem (11) is clamped with a seam (18), the needle stem (11) is abutted to the seam bottom of the seam (18), then the front end of the needle stem (11) is bent to a position between a top rod (6) and a pintle (10) through a bent clamping plate (13), then a fixed handle (1) and a movable handle (3) are tightly held, the pintle (10) is made to move towards the top rod (6), the needle stem (11) is clamped into a notch (12), then the needle stem (11) is bent at the notch (12), finally the bent part of the needle stem (11) is abutted into the pintle (10) through the top rod (6), at the moment, the needle point of the needle stem (11) is inverted in a hook shape, and the needle point is abutted to the inner wall of the pintle (10).

5. The closed loop waste medical syringe needle disposal device of claim 3, wherein: the right side of the clamping plate (13) is provided with a blocking plate (15), the distance from the blocking plate (15) to the central line of the notch (14) is less than the depth of the pintle (10), and when the blocking plate (15) is contacted with the sliding rod (4), the axis of the pintle (10) is intersected with and vertical to the central line of the notch (14).

6. The closed loop waste medical syringe needle disposal device of claim 5, wherein: the outer side of the blocking plate (15) is perpendicularly fixed with the positioning rod (16), the axis of the positioning rod (16) is overlapped with the seam bottom of the seam (18), the upper surface of the sliding rod (4) is provided with a counter bore (7), the counter bore (7) is matched with the positioning rod (16), after the positioning rod (16) is inserted into the counter bore (7), the axis of the needle bolt (10) is intersected and perpendicular with the central line of the notch (14), and the front end of the needle stem (11) is intersected and perpendicular with the axis of the needle stem (11).

7. The closed loop waste medical syringe needle disposal device of claim 6, wherein: the bottom of the positioning rod (16) is conical.

8. The closed loop waste medical syringe needle disposal device of claim 1 wherein: the sliding rod (4) is a square rod, and the sliding sleeve (17) is a square sleeve matched with the sliding rod.