CN212651173U

CN212651173U - Needle-prick-proof and damage-free needle

Info

Publication number: CN212651173U
Application number: CN202021289291.8U
Authority: CN
Inventors: 商光春
Original assignee: Suzhou Linhwa Medical Devices Co ltd
Current assignee: Suzhou Linhwa Medical Devices Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-03-05
Anticipated expiration: 2030-07-02

Abstract

The utility model discloses a prevent acupuncture not damaged needle, including reciprocal anchorage's base and upper cover, both cooperations form an inside accommodating space, the pinhole has been seted up on the lower bottom surface of base to the needle point that supplies the needle tubing passes, be provided with an extensible sleeve subassembly in the accommodating space, the sleeve subassembly with the pinhole is coaxial, the needle tubing passes sleeve subassembly and have the stop gear between the two and make the needle tubing can't all the time with sleeve subassembly breaks away from, still be provided with a gleitbretter that is driven by actuating mechanism and removes in the accommodating space, the sliding position of gleitbretter is located sleeve subassembly's below, when it slides to the second position from the primary importance, the gleitbretter is located sleeve subassembly is under, and its body shelters from partial or whole pinhole. The beneficial effects of the utility model are mainly embodied in that: the extracted needle tip can be sealed in the containing space formed by the base and the upper cover, so that the medical care personnel can be prevented from being punctured by the needle tube and secondary pollution can be avoided.

Description

Needle-prick-proof and damage-free needle

Technical Field

The utility model relates to a medical article technical field particularly, especially, relate to a prevent acupuncture not damaged needle.

Background

The atraumatic needle is generally used in medical infusion and is used in cooperation with a base of an infusion port. The liquid medicine is delivered into the body of the patient through the atraumatic needle and the transfusion port to cure the disease of the patient. The atraumatic needle set for intravenous ports disclosed in chinese patent CN201820513387.4 describes in detail the structure of an atraumatic needle. However, the problem is also found, and the right hand often rebounds unconsciously due to inertia action at the moment of withdrawing the atraumatic needle, so that the needle-stick injury event that a nurse presses fingers of the base or the skin of the puncture position of a patient easily occurs. And the recovery of the atraumatic needle after it is pulled out is also a problem. Our "atraumatic needle" injures not only our care-givers but also our patients, and once infected by various pathogens, it will cause heavy impact on the psychology of the medical care-givers and patients, and economic losses. Secondly, after the atraumatic needle is pulled out, residual blood inside and outside the needle tube (3) overflows, and if the residual blood drops on the body of medical care personnel or general people, the residual blood pollutes the medical care personnel or the general people.

Therefore, there is a need for a needle-prick-proof atraumatic needle to solve the above problems, and various needle-prick-proof atraumatic needle structures are also available in the market, such as those disclosed in US patents 9149574, US8574197, US8728029, and chinese patent CN208319646U, which are either very complicated, or have a plurality of additional parts added or have changed the traditional structure of the atraumatic needle, and thus are not well accepted by the market.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects existing in the prior art and providing a needle with no damage.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a prevent acupuncture not damaged needle, includes reciprocal anchorage's base and upper cover, and both cooperations form an inside accommodation space, the pinhole has been seted up on the lower bottom surface of base to the needle point that supplies the needle tubing passes, be provided with an extensible sleeve subassembly in the accommodation space, the sleeve subassembly with the pinhole is coaxial, the needle tubing passes sleeve subassembly and have stop gear between the two and make the needle tubing can't all the time with sleeve subassembly breaks away from, still be provided with a gleitbretter that is driven by actuating mechanism and removes in the accommodation space, the sliding position of gleitbretter is located sleeve subassembly's below, when it slides to the second place from primary importance, the gleitbretter is located sleeve subassembly is under, and its body shelters from partial or whole pinhole.

Preferably, the sleeve component comprises a limiting cylinder which is positioned on the inner wall of the upper cover and extends downwards, an outer sleeve and an inner sleeve which are positioned in the limiting cylinder and are sleeved, and the outer sleeve and the inner sleeve as well as the outer sleeve and the limiting cylinder can freely slide.

Preferably, mutually limiting flange edges are arranged between the outer sleeve and the inner sleeve and between the outer sleeve and the limiting cylinder so as to prevent the adjacent elements of the sleeve assembly from being separated.

Preferably, the needle tube comprises a bending part located at the needle point, the height of the outer sleeve is equal to that of the limiting cylinder, the length of the outer sleeve is equal to that of the bending part, the aperture of the inner sleeve is equal to the outer diameter of the needle tube, and the limiting mechanism is a bending structure of the bending part and an outward-turned flange edge of the inner sleeve.

Preferably, the upper cover has a first opening which is a circular hole with a diameter equal to that of the outer sleeve.

Preferably, a baffle disc is fixed at the bottom of the limiting cylinder, and a through hole for the needle tube to pass through is formed in the baffle disc.

Preferably, the through hole is coaxial with the needle hole and has a size equal to that of the needle hole, and the radius of the through hole is the offset degree of the bending part of the needle tube.

Preferably, the sliding piece comprises two parts perpendicular to each other, the first part is arranged between the sleeve assembly and the upper surface of the base, and one side of the second part is matched and connected with the driving mechanism.

Preferably, the driving mechanism is an elastic element, one end of which abuts against the base and the other end of which abuts against the second portion of the slide sheet.

Preferably, the elastic element is a spring, the base extends upwards to form a slip sheet guide plate and a spring limiting plate, the slip sheet guide plate is arranged on two sides of the slip sheet, and the spring limiting plate is arranged on two sides of the spring.

Preferably, the needle tubing includes the neck, connects the input side and the output side of needle tubing respectively, the needle point does the distal end of output side, the axis contained angle of input side and output side is less than 90, be provided with on the input side be used for with the fixed clamping mechanism of base.

Preferably, the input side includes the needle handle of one set of establishing on the needle tubing, be provided with butterfly wing and latch mechanism on the needle handle, latch mechanism is including setting up on the needle handle and stretch to the inserter of base, be provided with corresponding buckle on the base, the inserter passes the second opening of upper cover and with the buckle joint.

Preferably, the base is further provided with a fixing block for limiting the insert to shake.

Preferably, the needle handle is further provided with a stop block, the height of the stop block is equal to the gap between the needle handle and the upper cover, and the free end of the stop block is matched with the outer contour of the upper cover contacted with the upper cover.

The beneficial effects of the utility model are mainly embodied in that:

1. after the transfusion is finished, the needle tube can be pulled out by holding the needle handle, the needle tip part of the pulled needle tube can be sealed in the accommodating space formed by the base and the upper cover, the movable sliding piece is arranged to prevent the needle tip of the needle tube from extending out of the accommodating space, and the needle tip of the needle tube is bent to prevent the needle tube from being pulled out of the accommodating space, so that medical personnel and patients can be prevented from being punctured by the needle tube, and secondary pollution caused by outflow of waste liquid in the needle tube can be avoided;

2. the extensible sleeve component can be matched with the pulling-out distance of the needle tube to fix and limit the front end of the needle tube, so that the needle tube is stably sealed in the accommodating space;

3. the bottom of the limiting cylinder is provided with a baffle disc to effectively limit the position of the limiting cylinder, so that the limiting cylinder is prevented from falling out of the needle hole, meanwhile, a certain blocking effect is realized on the accommodated needle tube, and the needle tip of the needle tube can be still prevented from extending out of the accommodating space on the basis of no sliding sheet;

4. the needle tubing setting has the neck, and the contained angle between the output side of neck both sides and the input side is less than 90 simultaneously, reduces the utility model discloses an overall height to further make things convenient for in-service use.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

FIG. 1: the utility model discloses a first state stereogram of an anti-acupuncture and non-damage needle;

FIG. 2: the utility model discloses a first state schematic diagram after the upper cover of the anti-needling no-damage needle is removed;

FIG. 3: the utility model discloses a first state side view of the anti-needling no-damage needle;

FIG. 4: FIG. 3 is a cross-sectional view;

FIG. 5: an enlarged view of portion a in fig. 4;

FIG. 6: FIG. 3 is a cross-sectional view taken along line A-A;

FIG. 7: the utility model discloses a second state stereogram of the anti-needling no-damage needle;

FIG. 8: the utility model discloses a second state schematic diagram after the upper cover of the anti-needling no-damage needle is removed;

FIG. 9: the utility model discloses prevent the second state cross-sectional view of acupuncture not damaged needle.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1 to 9, the present invention discloses a needle with no damage by preventing needle prick, which comprises a base 1 and an upper cover 2 fixed to each other, wherein the base 1 and the upper cover cooperate to form an inner accommodating space 100, and a needle hole 101 is provided on the lower bottom surface of the base 1 for the needle tip 301 of the needle tube 3 to pass through. In the preferred embodiment, the base is composed of an inner part and an outer part, wherein the inner part is a hard plastic layer, and the outer part is a soft material which can contact with the skin of a patient, such as silica gel, rubber and the like.

An extensible sleeve component 4 is arranged in the accommodating space 100, the sleeve component 4 is coaxial with the needle hole 101, the needle tube 3 penetrates through the sleeve component 4, a limiting mechanism is arranged between the sleeve component 4 and the limiting mechanism, so that the needle tube 3 cannot be separated from the sleeve component 4 all the time, a sliding piece 5 driven to move by a driving mechanism 6 is further arranged in the accommodating space 100, the sliding position of the sliding piece 5 is located below the sleeve component 4, when the sliding piece 5 slides to a second position from a first position, the sliding piece 5 is located right below the sleeve component 4, and the needle hole 101 is partially or completely shielded by the body of the sliding piece 5.

As shown in fig. 5, the sleeve assembly 4 includes a limiting cylinder 401 located on the inner wall of the upper cap 2 and extending downward, an outer sleeve 402 and an inner sleeve 403 located in the limiting cylinder 401 and sleeved with each other, and gaps are present between the outer sleeve 402 and the inner sleeve 403 and between the outer sleeve 402 and the limiting cylinder 401 to ensure that the outer sleeve 402 and the inner sleeve 403 and between the outer sleeve 402 and the limiting cylinder 401 slide freely. And the upper cap 2 has a first opening 201 which is a circular hole having a diameter equal to that of the outer sleeve 402. The sleeve component 4 has two states, in an initial state, the needle tube 3 extends out of the needle hole 101, the sleeve component 4 is sleeved on the needle tube 3, the inner sleeve 403 is positioned in the outer sleeve 402, and the outer sleeve 402 is positioned in the limiting cylinder 401 as shown in the figure; in the second state, the needlepoint 301 of the needle tube 3 is located in the accommodating space 100, the inner sleeve 403 protrudes out of the outer sleeve 402, and the outer sleeve 402 protrudes out of the limiting cylinder 401, as shown in fig. 7 to 9. The extensible structure of the sleeve component 4 can match with the insertion and extraction of the needle tube 3, so that the accommodating space 100 can provide a certain elastic accommodating space for the insertion and extraction of the needle tube 3 without changing the appearance, and the manufacturing cost of equipment is saved.

Further, mutually limiting flange edges 404 are arranged between the outer sleeve 402 and the inner sleeve 403 and between the outer sleeve 402 and the limiting cylinder 401 to prevent the adjacent elements of the sleeve assembly 4 from being separated. Meanwhile, the existence of the flange 404 can enable the sleeve assembly 4 to form a sealed space in the second state, and prevent the liquid in the needle tube 3 from flowing out of the accommodating space 100 to cause secondary pollution.

As shown in fig. 4, the needle tube 3 of the present invention includes a bending portion 302 at the needle tip 301, and the existence of the bending portion 302 enables the incision of the needle tip 301 of the needle tube 3 to maintain a vertical state, so as to facilitate the connection between the needle tip 301 and the port (not shown in the figure). Specifically, as shown in fig. 9, the height of the outer sleeve 402 and the limiting cylinder 401 is equal to the length of the bending portion 302, and the aperture of the inner sleeve 403 is equal to the outer diameter of the needle tube 3, so that when the needle tube 3 is pulled out, the bending portion 302 of the needle tube 3 can be just clamped in the sleeve assembly 4, and the sleeve assembly 4 seals the bending portion 302 and simultaneously prevents the bending portion 302 from shaking in the accommodating space 100, which is the optimal length of the sleeve assembly 4 in the second state, and unnecessary cost materials can be saved. The utility model provides a stop gear for the portion of bending 302 the structure of buckling with the flanged edge 4031 that turns up of inner skleeve 403. When the needle tube 3 is pulled out, the bent portion 302 abuts against the outward flanged edge 4031, so that the needle tube 3 cannot be pulled out from the inner sleeve 403, and the needle tip 301 is prevented from being separated from the receiving space 100.

In order to prevent the outer sleeve 402 and the inner sleeve 403 in the sleeve assembly 4 from sliding out of the needle hole 101, a stop disc 405 is fixed at the bottom of the limiting cylinder 401, and a through hole 4051 for the needle tube 3 to pass through is formed in the stop disc 405. Further, the through hole 4051 is coaxial and of a size corresponding to the needle hole 101, and the radius thereof is the offset degree of the bending portion 302 of the needle tube 3. This arrangement allows the needle tip 301 to be brought into abutment with the catch disc 405 when the needle cannula 3 is withdrawn, as shown. The structure is such that even if the sliding sheet 5 fails, the needle point 301 is still blocked by the blocking disc 405, which can further ensure that the needle point 301 does not protrude from the needle hole 101, and protect medical staff and patients.

As shown in fig. 5 and 9, the sliding piece 5 includes two parts perpendicular to each other, a first part 501 is disposed between the sleeve assembly 4 and the upper surface of the base 1, and one side of a second part 502 is coupled to the driving mechanism 6. The second portion 502 can abut against the outer side wall of the limiting cylinder 401, so as to limit the first portion 501.

The driving mechanism 6 of the present invention is an elastic element, one end of which is connected to the base 1, and the other end of which is connected to the second portion 502 of the sliding piece 5. In the preferred embodiment, as shown in fig. 2, the resilient member is a spring, although in other embodiments, other suitable resilient members may be used. The base 1 upwards extends to have gleitbretter deflector 102 and spring limiting plate 103, gleitbretter deflector 102 sets up the both sides of gleitbretter 5, spring limiting plate 103 sets up the both sides of spring. The sliding piece guide plate 102 and the spring limiting plate 103 can ensure that the spring can stably move forwards and backwards, and the influence on the forward and backward movement of the sliding piece 5 caused by the deformation of the spring in other directions such as arching in the accommodating space 100 is avoided.

In the preferred embodiment, the needle tube 3 includes a neck 303, which is connected to an input side 304 and an output side 305 of the needle tube 3, respectively, the needle tip 301 is a distal end of the output side 305, an axial angle between the input side 304 and the output side 305 is smaller than 90 °, and a clamping mechanism for fixing with the base 1 is disposed on the input side 304. The feature that the included angle between the axes of the input side 304 and the output side 305 is smaller than 90 ° can reduce the height of the input side 304, so that the input side 304 is as close to the human body as possible when in use, thereby avoiding the error touch of the needle tube 3 and the influence on the effective connection between the needle tube 3 and the infusion port.

In addition, the input side 304 comprises a needle handle 306 arranged on the needle tube 3 in a sleeving manner, a butterfly wing 307 and a clamping mechanism are arranged on the needle handle 306, the clamping mechanism comprises an insertion piece 308 arranged on the needle handle 306 and extending to the base 1, a corresponding buckle 104 is arranged on the base 1, and the insertion piece 308 penetrates through the second opening 202 of the upper cover 2 and is clamped with the buckle 104. Through clamping mechanism, needle handle 306 can be fast with the upper cover 2 is connected the dismantlement, has greatly practiced thrift the plug the time of needle tubing 3 has improved the efficiency of in-service use.

The base 1 is further provided with a fixing block 105 for limiting the insert 308 from shaking. The fixing blocks 105 are respectively arranged on two sides of the buckle 104, and after the insert piece 308 is clamped with the buckle 104, the fixing blocks 105 are respectively abutted against two sides of the insert piece 308. Of course, the buckle 104 and the fixing block 105 are both disposed on the hard plastic layer of the base 1.

In addition, as shown in fig. 2, 8 and 9, a stop block 309 is further disposed on the needle handle 306, the height of the stop block 309 is equal to the gap between the needle handle 306 and the upper cover 2, and the free end of the stop block 309 matches the outer contour of the upper cover 2 contacting with the upper cover. It is the stop block 309 that can further stabilize the connection between the needle handle 306 and the upper cover 2, placing the needle handle 306 in a rocking motion.

The working process of the utility model is simply introduced as follows:

as shown in fig. 1, in a first state (in use), the needle handle 306 is fixedly arranged on the upper cover 2, and the needle tip 301 extends out of the needle hole 101;

as shown in fig. 7, in the second state (used up), the medical care professional can pull out the needle tube 3 while separating the needle handle 306 from the upper cap 2 by holding the wing 307, and at this time, the hub unit 4 is unfolded, and the needlepoint 301 and the bent portion 302 are located in the housing space 100.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. Prevent acupuncture not damaged needle, including reciprocal anchorage's base (1) and upper cover (2), both cooperations form an inside accommodation space (100), pinhole (101) have been seted up on the lower bottom surface of base (1) to needle point (301) that supply needle tubing (3) pass its characterized in that: an extensible sleeve component (4) is arranged in the accommodating space (100), the sleeve component (4) is coaxial with the needle hole (101), the needle tube (3) penetrates through the sleeve component (4) and a limiting mechanism is arranged between the sleeve component and the sleeve component to enable the needle tube (3) not to be separated from the sleeve component (4) all the time, a sliding sheet (5) driven to move by a driving mechanism (6) is further arranged in the accommodating space (100), the sliding position of the sliding sheet (5) is located below the sleeve component (4), when the sliding sheet slides to a second position from a first position, the sliding sheet (5) is located under the sleeve component (4), and the body of the sliding sheet shields part or all of the needle hole (101).

2. The needle stick prevention atraumatic needle of claim 1, wherein: the sleeve component (4) comprises a limiting cylinder (401) which is positioned on the inner wall of the upper cover (2) and extends downwards, an outer sleeve (402) and an inner sleeve (403) which are positioned in the limiting cylinder (401) and are sleeved, and the outer sleeve (402) and the inner sleeve (403) as well as the outer sleeve (402) and the limiting cylinder (401) can freely slide.

3. The needle stick prevention atraumatic needle of claim 2, wherein: mutual limiting flange edges (404) are arranged between the outer sleeve (402) and the inner sleeve (403) and between the outer sleeve (402) and the limiting cylinder (401) so as to prevent the adjacent elements of the sleeve assembly (4) from being separated.

4. The needle stick prevention atraumatic needle of claim 3, wherein: the needle tube (3) comprises a bending part (302) located at a needle point (301), the height of the outer sleeve (402) is equal to that of the limiting cylinder (401) and the length of the bending part (302), the aperture of the inner sleeve (403) is equal to the outer diameter of the needle tube (3), and the limiting mechanism is a bending structure of the bending part (302) and an outward-turned flange (4031) of the inner sleeve (403).

5. The needle stick prevention atraumatic needle of claim 4, wherein: the upper cover (2) is provided with a first opening (201) which is a round hole with the diameter equal to that of the outer sleeve (402).

6. The needle stick prevention atraumatic needle of claim 5, wherein: a baffle disc (405) is fixed at the bottom of the limiting cylinder (401), and a through hole (4051) for the needle tube (3) to pass through is formed in the baffle disc (405).

7. The needle stick prevention atraumatic needle of claim 6, wherein: the through hole (4051) is coaxial with the needle hole (101) and has the same size, and the radius of the through hole is the offset degree of the bending part (302) of the needle tube (3).

8. The needle stick prevention atraumatic needle of any of claims 1 to 7, wherein: the sliding piece (5) comprises two parts which are perpendicular to each other, the first part (501) is arranged between the sleeve component (4) and the upper surface of the base (1), and one side of the second part (502) is matched and connected with the driving mechanism (6).

9. The needle stick prevention atraumatic needle of claim 8, wherein: the driving mechanism (6) is an elastic element, one end of the driving mechanism is abutted to the base (1), and the other end of the driving mechanism is abutted to the second part (502) of the sliding sheet (5).

10. The needle stick prevention atraumatic needle of claim 9, wherein: elastic element is the spring, base (1) upwards extends there are gleitbretter deflector (102) and spring limiting plate (103), gleitbretter deflector (102) set up the both sides of gleitbretter (5), spring limiting plate (103) set up the both sides of spring.

11. The needle stick prevention atraumatic needle of any of claims 1 to 7, wherein: needle tubing (3) include neck (303), connect respectively input side (304) and output side (305) of needle tubing (3), needle point (301) do the distal end of output side (305), the axis contained angle of input side (304) and output side (305) is less than 90, be provided with on input side (304) be used for with the fixed clamping mechanism of base (1).

12. The needle stick prevention atraumatic needle of claim 11, wherein: the input side (304) includes one set of needle handle (306) of establishing on needle tubing (3), be provided with butterfly wing (307) and latch mechanism on needle handle (306), latch mechanism is including setting up on needle handle (306) and stretch to insert (308) of base (1), be provided with corresponding buckle (104) on base (1), insert (308) pass second opening (202) of upper cover (2) and with buckle (104) joint.

13. The needle stick prevention atraumatic needle of claim 12, wherein: the base (1) is further provided with a fixing block (105) used for limiting the insert (308) to shake.

14. The needle stick prevention atraumatic needle of claim 12, wherein: the needle handle (306) is further provided with a stop block (309), the height of the stop block (309) is equal to the gap between the needle handle (306) and the upper cover (2), and the free end of the stop block (309) is matched with the outer contour of the upper cover (2) in contact with the upper cover.