TWI639455B - Linked safety needle - Google Patents

Abstract

A interlocking safety needle comprising a syringe and a sleeve, the syringe comprising a syringe, a needle and a needle, the surface of the cylinder comprising at least one guiding body, the needle being coupled to one side of the cylinder The needle core is sleeved in the needle cylinder, and the needle core is disposed on one side of the needle cylinder to be provided with at least one pushing member in an active manner, and the pushing member extends in the direction of the needle, and the sleeve is sleeved in a movable manner. The sleeve is adapted to be between the pusher and the syringe. The sleeve has at least one guiding groove on the sleeve surface, and the guiding groove is adapted to the guiding body, and the sleeve has an elastic sleeve on one side. The pusher is moved to the push preparation position on one side of the sleeve by pulling back the needle core medicine or the diluent, and when the injection action is performed, the needle core can be connected by the pusher to link the sleeve and the elastic sleeve to completely cover the needle. And it can be completely covered when the needle is pulled out of the injection site, which breaks through the shortcomings of the existing syringe to be covered, and avoids the situation that the person is infected with various bloody infectious diseases due to the needlestick, thereby improving safety.

Description

Linked safety needle

The invention relates to a safety needle, in particular to a interlocking safety needle.

Administration is one of the important tasks of nursing staff and one of the important duties; the purpose of administration is to maintain normal physiological functions, prevent diseases, assist in diagnosis, treat diseases and alleviate symptoms; therefore, medical staff in medical institutions The use of a syringe to inject a drug into a patient is a common medical practice in clinical care, but because of the high rate of use of medical injections, the probability and risk of "needle stick" by medical personnel is increased.

The so-called "needle sticking" refers to the medical treatment performed by the medical staff using the needle of the syringe for the patient. The injury caused by the injection needle, such as injection, blood drawing or intravenous treatment, usually causes the patient's blood and pathogen to remain. Or virus, etc., if the medical staff is accidentally stabbed by the needle of the syringe, there is usually a high probability of being infected with various bloody infectious diseases such as AIDS, hepatitis B and syphilis. In severe cases, life-threatening diseases may be endangered, so the medical staff The use of a syringe needle for the patient to perform the relevant medical behavior, as well as the needle treatment after use is quite careful and cautious, and avoiding needle sticking is a protective measure that medical institutions attach great importance to.

In order to protect the occupational safety of first-line nursing staff and reduce the risk of contracting B liver, C liver or AIDS after needle sticking, the world is pushing hard to promote the use of safety needles. Take Taiwan as an example. In 2015, the target of safety assessment for all units in the hospital needs to reach 75%; 64.8% of the hospitals believe that it can be achieved; 24% of the hospitals think it is difficult. The introduction of safety needles has been effective, with approximately 57.9% of hospitals experiencing difficulties; 42.1% of hospitals have not encountered difficulties. Among the problems encountered, 23.08% of the hospitals had insufficient safety needles, and 64.10% of the nursing staff did not develop the habit of using safety needles; 65.38% of the hospitals considered that the safety needles were not convenient to use, and others still had products. Insufficient items, poor design and high cost. After the use of safety needles, 74.4% of hospital needles were reduced; 25.6% of hospitals had no difference. Regarding the use of safety needles, most of the hospitals indicated that they need to continue to promote them comprehensively. However, due to the current high cost of safety needles and the inconvenience and humanization of operation, it is recommended to correct the operational convenience of safety needle design and use mass production. Reduce procurement costs.

Please refer to the attached file. The photo in the attached file shows the currently available safety needles. The following is a detailed description of the shortcomings of the commercially available safety needles. The photos in the attachment are from right to left:

(Right 1) Inaccurate scale of the needle will cause the dose to be inaccurate to affect the patient's safety. In addition, the injection needs to be pulled back to return the needle to the syringe, and the posterior segment of the rod needs to be broken. This method is extremely difficult for the busy nursing environment. inconvenient.

(Right 2) After the needle is injected, the protective pusher should be pushed forward and then stuck to the side, and the protection pusher is not strong enough to slip off, and the needle is exposed to cause needle sticking.

(Right 3) Needle is the most widely used safety needle in clinical practice, but the risk of needle sticking is often caused by incorrect gripping position of the push cover. Even if the protective needle cover is covered, the middle section of the needle has an obvious appearance.

All of the above three needles cannot cover the design of the needle before the needle is pulled out. Therefore, the risk of needle sticking is likely to occur during the process of pulling out the needle and using the protective needle sleeve.

(Right 4) is an insulin needle. Although the needle can be pushed out with the side sleeve before the needle is pulled out, it covers the needle, but it needs to be used with both hands. After the sleeve is covered, the middle end of the needle is exposed. It is also easy to have the possibility of needle sticking.

(Right 5) After the needle is injected into the medicine, the needle is bounced into the syringe by the spring force. The needle can be pushed back before the needle is pulled. However, the spring backrest force is large, which often scares the patient, and the needle cannot replace the needle. The need for a high-viscosity drug or a need to replace a thicker needle in a first-aid case cannot be close to the needs of the caregiver; in addition, the needle is not suitable for dilizing a drug with a vial powder; in addition, the spring is also expensive to produce.

The needles commonly used in the market are as long as 2.5 cm, but the intramuscular injection only needs to be injected at a depth of 2/3, which makes it difficult for medical personnel to judge the depth of the needle.

In addition, the above (right 1), (right 2), (right 3), (right 5) needles are used for intramuscular injection, and the depth of the needle into the correct muscle layer is 2/3, but for nursing and new advancement. The caregiver often has difficulty in judging the needle penetration of 2/3. If the needle length is designed to meet the various purposes of injection, drug extraction, and drip dosing, the length adjustment is acceptable.

Therefore, the present inventors have been working on the design and development of products for many years, as well as actively researching and developing ideas, and through numerous practical tests and experiments, the present invention has been produced.

SUMMARY OF THE INVENTION The object of the present invention is to provide a linked safety needle which can be used to prevent needle sticking by pushing the sleeve by pushing the pusher to reach the needle completely.

For the above purposes, the present invention comprises a syringe, a sleeve, the syringe comprising a syringe, a needle, a needle, wherein the surface of the syringe comprises at least one guide body, the needle being coupled to the syringe One side, the needle core is sleeved in the needle cylinder, and the needle core is disposed on one side of the needle cylinder to be provided with at least one pushing member in an active manner, and the pushing member extends in the direction of the needle; the sleeve is movable The sleeve is sleeved and adapted to be between the pusher and the syringe, the sleeve has at least one guiding groove on the sleeve surface, the guiding groove is adapted to the guiding body, and the sleeve has one side Elastic sleeve.

By pushing the needle core to move the pusher to the push preparation position on one side of the sleeve, when the injection action is performed, the needle core can be linked by the pushing member to interlock the sleeve and the elastic sleeve, so that the sleeve and the elastic sleeve are completely moved. Covers the needle and can completely cover when the needle is pulled out of the injection site, breaking through the shortcomings of the existing syringe to be covered, avoiding the situation of people infected with various bloody infectious diseases due to needlestick, and improving safety. .

The following is only a detailed description of the embodiments, and the detailed description of the various features and features of the present invention will be made.

Referring to Figures 1 through 4, the present invention comprises a syringe 10 and a sleeve 20. This will be explained in detail below:

The syringe 10 includes a syringe 11, a needle 12, and a needle core 13. The surface of the syringe 11 includes a two-conductor slider 111. The needle 12 is coupled to one side of the barrel 11, and the needle core 13 is nested. In the barrel 11, the needle core 13 is provided with a second pushing member 14 in a movable manner on the side of the needle barrel 11 , and the pushing member 14 extends in the direction of the needle 12 .

The sleeve 20 is sleeved with the needle barrel 11 and is adapted to be between the pushing piece 14 and the barrel 11 . The sleeve 20 has two guiding grooves 21 on the sleeve surface, and the guiding groove 21 is adapted to the guiding tube. The sliding body 111 is movable in the guiding groove 21, and the closed end of the guiding groove 21 stops the guiding body 111 for controlling the movement of the sleeve 20 on the barrel 11 Stroke and avoid falling off.

The sleeve 20 has an elastic sleeve 30 on one side.

In one embodiment, the combination of the needle 12 and the barrel 11 is a male-female concave-convex joint structure. For example, the needle barrel 11 protrudes from a joint portion 112, and the joint portion 112 has a card slot 113. The slot 113 is internally threaded, and the needle 12 has a latching portion 121 on one side of the corresponding latching slot 113. The latching portion 121 is used to latch the latching slot 113 for the syringe 11 and the needle 12 A click structure is formed between them to facilitate the assembly and replacement of the needle 12.

The syringe 11 is provided with a tube body 114 on one side, and the tube body 114 has a slope 115 for use as a medicine extracting portion.

In a configuration embodiment, the needle core 13 is disposed on a side of the needle barrel 11 and is provided with a flat portion 131. The flat portion 131 facilitates alignment of the surface of the syringe 11 when the needle core 13 is used for metering. The scale is used to enhance the accuracy and convenience of visual measurement.

In one embodiment, the sleeve 20 has two recesses 22 and cooperates with the pusher 14 , and a portion of the pusher 14 is disposed in the recess 22 for guiding and positioning the pusher 14 .

In one embodiment, the sleeve 20 has two notches 23 and cooperates with the pusher 14 for the pusher 14 to be received.

In one embodiment, the surface of one side of the sleeve 20 has two recesses 24, and the inner surface of the sleeve 30 is provided with two protrusions 31, and the protrusions 31 are engaged with the recesses 24 for the elasticity. A sleeve 30 is bonded to the sleeve 20.

In one embodiment, the elastic sleeve 30 has a plurality of groove portions 32 for elastically deforming the elastic sleeve 30 after being pressed.

In one embodiment, the pusher 14 is selected from an elastic material for being elastically deformable.

The above is a description of the composition of the present invention, and then the components of the present invention and the composition thereof are introduced. Then, the use embodiments, features and benefits of the present invention are described as follows:

Referring to FIG. 4, FIG. 5, FIG. 6, and FIG. 7, the cartridge 11 and the needle 12 of the present invention have a latching structure for facilitating the assembly and replacement of the needle 12, and the front end of the syringe 11 is provided. There is a tube body 114 having a slope 115 to facilitate the rapid extraction of the syringe 11 without the needle 12, and to reduce the use of the needle 12 to avoid the incidence of needle sticking.

The shortening of the needle 12 allows the medical staff to overcome the difficulty of distinguishing the injection needle 2/3 when the muscle is injected, and the needle 12 can be properly fed into the shortened needle 12, and the length of the needle 12 can also be matched with the medicine bottle. And the need for drip dosing.

Referring to FIG. 6 and FIG. 7 , in the present invention, when the liquid medicine is withdrawn, the pusher 14 can be moved to the push preparation position on the side of the sleeve 20 by the extraction of the needle core 13, that is, the pusher 14 The sides elastically condense inwardly against the other side of the sleeve 20.

Referring to FIG. 8 , FIG. 9 , FIG. 10 , FIG. 11 , and FIG. 12 , when the injection operation is performed, the needle core 13 is moved in the direction of the needle 12 and can be interlocked by the push of the pusher 14 . The sleeve 20, that is, the side of the pusher 14 abuts against the other side of the sleeve 20, so that the sleeve 20 also moves synchronously with the core 13 and the elastic sleeve 30 completely covers the needle 12 (Fig. 10) The elastic sleeve 30 is elastically deformed when it contacts the injection site of the human body, and can be completely covered when the needle 12 is pulled out of the injection site (the elastic sleeve 30 shown in Fig. 11 can be elastically deformed and returned to the original shape), and the existing syringe is pulled out. The shortcomings that can be covered, to avoid the situation of people infected with various bloody infectious diseases due to needlestick, and improve safety.

Referring to FIG. 13 , FIG. 14 , and FIG. 15 , another embodiment of the present invention for performing drug extraction is mainly for extracting a diluent (eg, physiological salt) when the present invention is to be applied by a powder. Water, distilled water, etc.).

14 and FIG. 15 , after extracting a diluent (eg, physiological saline, distilled water, etc.), the pusher 14 side exits the recess 22 of the sleeve 20, and the needle core 13 After the pusher 14 is rotated by a predetermined angle, one side thereof corresponds to the notch 23 of the sleeve 20, and does not abut against the other side of the sleeve 20, and the sleeve 20 is not pushed by the pusher 14.

According to this, the extracted diluent (such as physiological saline, distilled water, etc.) is hit into the powder, and at this time, the pusher 14 side enters the notch 23 of the sleeve 20, so the sleeve 20 is not After being pushed, the powder is evenly shaken, and the needle core 13 and the pusher 14 are returned to the original position and angle, and the patient can be injected into the patient according to the aforementioned action of taking medicine, injection, or the step, and can be easily performed. Powder is applied.

Referring to FIG. 16 , FIG. 17 and FIG. 18 , in a structural embodiment, the elastic sleeve 30 has a slope portion 33 on one side, which can be applied to an intramuscular injection method of a needle that is not 90 degrees vertically. Subcutaneous injection and intradermal injection of the angle of the eye reduce the excessive compression of the elastic sleeve 30 to the injection site.

The above embodiments of the present invention are provided for convenience of explanation only. When the meaning of the case cannot be limited, that is, various transformation designs according to the scope of the listed patent application are included in the patent scope of the present application.

10‧‧‧Syringe

11‧‧‧Syringe

111‧‧‧Sliding body

112‧‧‧Combination Department

113‧‧‧ card slot

114‧‧‧pipe body

115‧‧‧Bevel

12‧‧‧ needle

121‧‧‧Card Department

13‧‧‧ needle heart

131‧‧‧Flat Department

14‧‧‧ push

20‧‧‧ sleeve

21‧‧‧ Guide slot

22‧‧‧ Groove

23‧‧‧ gap

24‧‧‧ recess

30‧‧‧Flexible sleeve

31‧‧‧ convex

32‧‧‧Ditch

33‧‧‧Bevel

Figure 1 is a perspective view of the present invention. Figure 2 is a perspective exploded view of the present invention. Figure 3 is an exploded perspective view of the sleeve and the syringe of the present invention. Figure 4 is a cross-sectional view of the present invention. Fig. 5 is a view showing an embodiment of the use of the present invention for facilitating the assembly and replacement of the needle. Fig. 6 is a view showing an embodiment of the use of the drug in the present invention. Fig. 7 is a view showing an embodiment of the use of the drug in the present invention. Fig. 8, Fig. 9, Fig. 10, and Fig. 11 show an embodiment of the use of the present invention for performing an injection operation, in which the needle is connected to the sleeve by a pusher to reach a complete coverage of the needle. Figure 12 is a perspective view of the sleeve of the present invention completely covering the needle. Fig. 13, Fig. 14, and Fig. 15 are views showing another embodiment of the use of the drug in the present invention. Figure 16 is a perspective view of another embodiment of the elastic sleeve of the present invention. Figure 17 is a perspective view of another embodiment of the present invention. Figure 18 is a diagram showing the state of use of another embodiment of the present invention.

Claims (7)

A interlocking safety needle comprises: a syringe comprising a syringe, a needle and a needle, the surface of the cylinder comprising at least one guiding body, the needle being coupled to one side of the barrel, the needle being nested In the syringe, the needle core is provided with at least one pushing member on the side of the needle sleeve, and the pushing member extends in the direction of the needle; a sleeve is sleeved in a movable manner, and the sleeve is sleeved The sleeve has at least one guiding groove, and the guiding groove is adapted to the guiding body, and one side of the sleeve has an elastic sleeve; wherein the combination of the needle and the barrel is a male-female concave-convex joint structure, the needle One side of the tube protrudes from a joint portion, and the joint portion has a card slot, and the needle has a latching portion on a side corresponding to the card slot, and the needle is used to clamp the card slot by the latching portion for the syringe Forming a latching structure with the needle; wherein the pushing member is selected from an elastic material for elastically deformable, and the pushing member is moved to the sleeve side by the surface of the sleeve by extracting the needle core The push position is pushed, that is, one side of the pusher elastically condenses inwardly against the other side of the sleeve. The interlocking safety needle according to claim 1, wherein the syringe is provided with a tube body on the side, and the tube body has a slope for serving as a medicine extracting portion. The interlocking safety needle according to claim 1, wherein the needle core is provided with a flat portion on one side of the needle barrel. The interlocking safety needle according to claim 1, wherein the sleeve has two grooves and cooperates with the pushing member, and the pushing member is partially disposed in the groove for the pushing member Guidance and positioning. The interlocking safety needle according to claim 1, wherein the sleeve has two notches and cooperates with the pushing member for the insertion member to be received. The interlocking safety needle according to claim 1, wherein one side surface of the sleeve has two concave portions, and the inner surface of the elastic sleeve cooperates with the concave portion to provide two convex portions, and the convex portion is engaged with the concave portion. The elastic sleeve is used to bond the sleeve. The interlocking safety needle according to claim 1, wherein the elastic sleeve has a plurality of grooves for elastically deforming the elastic sleeve after being pressed.