Anti-needling infusion apparatus

Abstract

The utility model discloses an anti-needling infusion apparatus, which belongs to the technical field of medical instruments and comprises a double-needle infusion apparatus, a sleeve, a pricking needle, a handle and a connecting tube, a cavity is arranged in the sleeve and penetrates through the tail end of the sleeve, an infusion needle is arranged at the front end of the sleeve, and the needle is arranged in the cavity. An infusion hole penetrating through the two ends of the infusion needle is formed in the infusion needle, an extension tube is fixedly arranged on one side of the sleeve, an insertion hole allowing the connecting tube to be inserted is formed in the extension tube, one end of the connecting tube is inserted into the insertion hole of the extension tube, and the handheld handle is arranged at the tail end of the sleeve. The puncture needle is vertically arranged in an infusion hole of the infusion needle, the puncture needle is made of steel, the infusion needle made of flexible materials can be left in a blood vessel to be jointly matched with the sleeve and the connecting pipe to be used for infusion, and when the infusion needle deviates due to limb movement of a patient, the infusion needle can be bent along with changes of the blood vessel and limbs. And blood vessels cannot be punctured.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an anti-needle puncture infusion set. Background Art

[0002] The needles configured on the double-headed infusion sets in the prior art are scalp needles, which are made of hard material. Once the needles pierce the blood vessels in the patient's hands, any movement of the patient's limbs may cause the needles to deviate and create a risk of injury.

[0003] For example, a double-head infusion device with publication number CN213526805U includes a front input end, a middle merging end, and a terminal medication end, wherein the middle merging end is located above the terminal medication end, and the front input end is located above the middle merging end.

[0004] When the needle at the end of the infusion hose in this patent application is in use, after the needle pierces a blood vessel in the patient's hand, if the patient's limbs move, causing the needle insertion site to move, although the needle is fixed to the skin surface with tape, the patient's hand movements are often too large, causing the needle tip to pierce the blood vessel and cause pain to the patient. Utility Model Content

[0005] The embodiment of the present utility model provides an anti-needlestick infusion set to solve the above-mentioned technical problems.

[0006] The embodiment of the utility model adopts the following technical solution: it includes a double-needle infusion set, and also includes a cannula, a puncture needle, a hand-held handle and a connecting tube, the interior of the cannula is provided with a cavity and passes through the end of the cannula, and the cannula is transparent, the front end of the cannula is fixedly provided with an infusion needle, the interior of the infusion needle is provided with infusion holes passing through both ends, the infusion holes in the infusion needle are connected with the cavity inside the cannula, an extension tube is fixedly provided on one side of the cannula, the interior of the extension tube is provided with a socket for plugging the connecting tube, the socket is connected with the internal cavity of the cannula, one end of the connecting tube is plugged into the socket of the extension tube and is fixedly connected to the extension tube, the other end of the connecting tube is connected to the infusion tube of the double-needle infusion set, and the hand-held handle is provided at the end of the cannula;

[0007] The puncture needle is vertically arranged in the infusion hole of the infusion needle and can move in the infusion hole of the infusion needle and the cavity of the sleeve. The end of the puncture needle is fixedly connected to the handheld handle, and the puncture needle is made of steel.

[0008] Preferably, the infusion needle is made of flexible silicone material and can be bent arbitrarily.

[0009] Preferably, a cylindrical closing plug is provided in the chamber of the sleeve, and the position of the closing plug in the chamber is between the end of the sleeve and the extension tube. The outer wall of the closing plug is fixedly connected to the inner wall of the chamber of the sleeve. The closing plug is made of silicone, and a fine hole passing through both ends is provided in the center of the cylindrical closing plug.

[0010] Preferably, the hand-held handle includes a support member and a baffle for hand-held operation, the support member is located at the end of the sleeve, and the front end of the support member is fixedly provided with a silicone plug that can be placed in the cavity at the end of the sleeve. After the silicone plug is placed in the cavity at the end of the sleeve, the end of the sleeve can be closed, the end of the puncture needle passes through the silicone plug and is fixedly connected to the support member, the baffle is placed horizontally on one side of the sleeve, and one end of the baffle is fixedly connected to the support member.

[0011] Preferably, a clamping piece is fixedly provided on one end of the connecting tube facing the double-needle infusion set, the clamping piece is a cylindrical structure, and a hole communicating with the interior of the connecting tube is provided inside the clamping piece;

[0012] A socket is fixedly provided at the end of the infusion tube of the double-needle infusion device. The socket is provided with a plug hole that matches the outer diameter of the cylindrical structure clamping piece. The clamping piece is plugged into the plug hole of the socket.

[0013] Preferably, the outer side wall of the clamping member is provided with a thread, and the inner wall of the plug hole on the sleeve member is provided with a thread groove adapted to the thread.

[0014] At least one of the above technical solutions adopted in the embodiment of the present utility model can achieve the following beneficial effects:

[0015] First, when the puncture needle and the wrapped infusion needle are inserted into the blood vessel through the skin of the patient's hand, the steel puncture needle can support the infusion hole of the flexible infusion needle, so that the infusion needle can smoothly penetrate the blood vessel through the skin.

[0016] Secondly, the infusion needle made of flexible silicone and capable of arbitrary bending can be left in the blood vessel and cooperated with the cannula and connecting tube for infusion. If the patient's limb movement causes the infusion needle to deviate, the flexible infusion needle will bend with the changes in the blood vessels and limbs. Therefore, the infusion needle will not puncture the blood vessels, thus avoiding the situation where the hard material punctures the blood vessels like the scalp acupuncture. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0020] Figure 3 This is a disassembly diagram of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the sleeve in the present invention;

[0023] Figure 6 for Figure 2 Enlarged view of point A.

[0024] Reference numerals

[0025] Double-needle infusion set 1, cannula 2, chamber 21, infusion needle 22, extension tube 23, socket 24, closure plug 25, pore 26, puncture needle 3, hand-held handle 4, support member 41, baffle 42, silicone plug 43, connecting tube 5, clamping member 51, socket member 52, socket hole 53, thread 54. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will provide a clear and complete description of the technical solutions of the present invention in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0027] The technical solutions provided by various embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] The embodiment of the utility model provides an anti-needle infusion set, comprising a double-needle infusion set 1, a cannula 2, a needle 3, a hand-held handle 4 and a connecting tube 5;

[0029] Refer to the attached Figures 1 to 4As shown, the interior of the cannula 2 is provided with a chamber 21 which passes through the end of the cannula 2, and the cannula 2 is transparent. An infusion needle 22 is fixedly provided at the front end of the cannula 2, and an infusion hole passing through both ends is provided inside the infusion needle 22. The infusion hole in the infusion needle 22 is communicated with the chamber 21 inside the cannula 2. An extension tube 23 is fixedly provided on one side of the cannula 2, and a socket 24 for plugging the connecting tube 5 is provided inside the extension tube 23. The socket 24 is communicated with the internal chamber 21 of the cannula 2, one end of the connecting tube 5 is plugged into the socket 24 of the extension tube 23 and is fixedly connected to the extension tube 23, and the other end of the connecting tube 5 is connected to the infusion tube of the double-needle infusion set 1, and the hand-held handle 4 is provided at the end of the cannula 2.

[0030] The puncture needle 3 is vertically arranged in the infusion hole of the infusion needle 22, and the puncture needle 3 can move in the infusion hole of the infusion needle 22 and the chamber 21 of the cannula 2. The end of the puncture needle 3 is fixedly connected to the handheld handle 4. The puncture needle 3 is made of steel, and the infusion needle 22 is made of flexible silicone and can be bent arbitrarily.

[0031] Refer to the attached Figure 4 and 5 As shown, in a further preferred embodiment, a cylindrical closing plug 25 is provided in the chamber 21 of the sleeve 2. The closing plug 25 is located between the end of the sleeve 2 and the extension tube 23 in the chamber 21. The outer wall of the closing plug 25 is fixedly connected to the inner wall of the chamber 21 of the sleeve 2. The closing plug 25 is made of silicone and has a fine hole 26 extending through both ends at the center of the cylindrical closing plug 25.

[0032] (In the initial state, the puncture needle 3 on the handheld handle 4 is located in the pore 26 of the closure plug 25 and the infusion hole of the infusion needle 22);

[0033] When in use, the entire needle-proof infusion device can be controlled by holding the handle 4 on the sleeve 2. During puncture, the puncture needle 3 together with the outer wrapped infusion needle 22 is inserted into the blood vessel through the skin of the patient's hand. During the puncture process, the steel puncture needle 3 can support the infusion hole of the flexible infusion needle 22, so that the infusion needle 22 can smoothly penetrate the blood vessel through the skin.

[0034] After the infusion needle 22 has penetrated the blood vessel, the cannula 2 can be controlled with one hand to prevent the cannula 2 from moving, and the other hand can be used to pinch the handle 4 and slowly pull it toward the end of the cannula 2. As the handle 4 is gradually withdrawn from the cavity 21 of the cannula 2, the puncture needle 3 connected to the handle 4 will also be gradually separated from the infusion hole of the infusion needle 22. During the operation, the transparent cannula 2 can be used for medical staff to observe the interior through the cannula 2. As the tip of the puncture needle 3 gradually moves from the infusion needle 22 into the cavity 21 of the cannula 2, the medical staff can observe the interior of the cannula 2 to see if there is blood flowing into the cavity 21 of the cannula 2 through the infusion needle 22. If blood flows in, it means that the infusion needle 22 has successfully punctured.

[0035] Then, the handle 4 is slowly pulled to gradually withdraw the tip of the needle 3 from the pore 26 of the closure plug 25. As the tip of the needle 3 moves to the rear end of the closure plug 25 and leaves the pore 26, the pore 26 of the closure plug 25 contracts due to the properties of its silicone material, squeezing and sealing the pore 26. This blocks the rear end of the connection between the extension tube 23 and the chamber 21 of the cannula 2, thereby preventing blood from flowing out of the end of the cannula 2. The handle 4 can then be controlled to remove the entire needle 3 from the chamber 21 of the cannula 2.

[0036] As the hand-held handle 4 and the puncture needle 3 are separated from the cannula 2, the infusion needle 22 will replace the puncture needle 3 and remain in the blood vessel to cooperate with the cannula 2 and the connecting tube 5 for infusion. Since the infusion needle 22 is made of flexible silicone material and can be bent arbitrarily, if the patient's limb movement causes the infusion needle 22 to deviate, the flexible infusion needle 22 will bend with the changes in the blood vessels and limbs. Therefore, the infusion needle 22 will not puncture the blood vessels, and the situation of puncturing blood vessels due to hard materials like scalp acupuncture can be avoided.

[0037] Refer to the attached Figure 3 and 4 As shown, in a further preferred embodiment, the hand-held handle 4 includes a support member 41 and a baffle 42 for hand-held operation. The support member 41 is located at the end of the sleeve 2. A silicone plug 43 that can be placed in the end cavity 21 of the sleeve 2 is fixedly provided at the front end of the support member 41. After the silicone plug 43 is placed in the end cavity 21 of the sleeve 2, the end of the sleeve 2 can be closed. The end of the puncture needle 3 passes through the silicone plug 43 and is fixedly connected to the support member 41. The baffle 42 is horizontally placed on one side of the sleeve 2, and one end of the baffle 42 is fixedly connected to the support member 41.

[0038] The baffle 42 can be used by medical staff for handheld operation to facilitate control of the entire anti-needle puncture infusion device, and the silicone plug 43 provided at the front end of the support member 41 can seal the end of the sleeve 2 when it is inserted into the cavity 21 at the end of the sleeve 2 to prevent blood from flowing out. At the same time, after the silicone plug 43 is inserted into the cavity 21 at the end of the sleeve 2, the support member 41 and the baffle 42 can be connected to the sleeve 2, thereby preventing the support member 41 from detaching from the cavity 21 of the sleeve 2 during the puncture process, and causing the puncture needle 3 to be displaced in the infusion hole of the infusion needle 22, thereby affecting the support state of the infusion needle 22.

[0039] Refer to the attached Figure 6 As shown, in a further preferred embodiment, a clamping member 51 is fixedly provided on one end of the connecting tube 5 facing the double-needle infusion set 1. The clamping member 51 is a cylindrical structure, and a hole communicating with the interior of the connecting tube 5 is provided inside the clamping member 51.

[0040] The end of the infusion tube of the double-needle infusion set 1 is fixedly provided with a sleeve 52, and the interior of the sleeve 52 is provided with a plug hole 53 that matches the outer diameter of the cylindrical structure clamping member 51, and the clamping member 51 is inserted into the plug hole 53 of the sleeve 52;

[0041] The infusion needle 22 and the puncture needle 3 in the present application are provided with a variety of specifications of different thicknesses and lengths. By means of the clamping piece 51 provided on the connecting tube 5 and the socket piece 52 at the end of the infusion tube, the anti-needle infusion set connected to the connecting tube 5 can be disassembled, so that an anti-needle infusion set of appropriate specifications can be installed on the double-needle infusion set 1 according to the needs of different patients.

[0042] Refer to the attached Figure 6 As shown, in a further preferred embodiment, the outer wall of the clamping member 51 is provided with a thread 54, and the inner wall of the plug hole 53 on the sleeve 52 is provided with a thread groove adapted to the thread 54;

[0043] When connecting the clip 51 with the socket 52, the clip 51 can be screwed into the thread groove on the inner wall of the socket hole 53 of the socket 52, so that the thread 54 on the outer wall of the clip 51 and the thread groove in the socket hole 53 of the socket 52 produce a thread 54 to cooperate and connect. After the thread 54 connection is formed, the clip 51 or the socket 52 can be prevented from being separated due to the pulling force, thereby avoiding the normal infusion being affected by the separation of the clip 51 and the socket 52 during use.

[0044] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.

Claims

1. An anti-needle infusion set, comprising a double-needle infusion set (1), characterized in that: Also includes: A sleeve (2), wherein a chamber (21) is provided inside the sleeve (2) and passes through the end of the sleeve (2); An infusion needle (22) is fixedly provided at the front end of the cannula (2), and an infusion hole is provided inside the infusion needle (22) passing through both ends, and the infusion hole in the infusion needle (22) is communicated with the chamber (21) inside the cannula (2); An extension tube (23) is fixedly provided on one side of the sleeve (2), and a socket (24) for plugging the connecting tube (5) is provided inside the extension tube (23), and the socket (24) is communicated with the internal chamber (21) of the sleeve (2); A hand-held handle (4), the hand-held handle (4) being arranged at the end portion of the sleeve (2); a connecting tube (5), one end of which is inserted into the insertion hole (24) of the extension tube (23) and fixedly connected to the extension tube (23), and the other end of which is connected to the infusion tube of the double-needle infusion set (1); A puncture needle (3) is vertically arranged in the infusion hole of the infusion needle (22), and the puncture needle (3) can move in the infusion hole of the infusion needle (22) and in the chamber (21) of the cannula (2). The end of the puncture needle (3) is fixedly connected to the handheld handle (4), and the puncture needle (3) is made of steel.

2. The needle-proof infusion set according to claim 1, characterized in that: The infusion needle (22) is made of flexible silicone material and can be bent arbitrarily.

3. The needle-proof infusion set according to claim 1, characterized in that: A cylindrical closing plug (25) is provided in the chamber (21) of the sleeve (2). The position of the closing plug (25) in the chamber (21) is between the end of the sleeve (2) and the extension tube (23). The outer wall of the closing plug (25) is fixedly connected to the inner wall of the chamber (21) of the sleeve (2). The closing plug (25) is made of silicone and a fine hole (26) is provided at the center of the cylindrical closing plug (25) and passes through both ends.

4. The needle-proof infusion set according to claim 1, characterized in that: The hand-held handle (4) comprises a support member (41) and a baffle (42) for hand-held operation; The support member (41) is located at the end of the sleeve (2); The front end of the support member (41) is fixedly provided with a silicone plug (43) which can be placed in the end chamber (21) of the sleeve (2). After the silicone plug (43) is placed in the end chamber (21) of the sleeve (2), the end of the sleeve (2) can be closed. The end of the needle (3) passes through the silicone plug (43) and is fixedly connected to the support member (41); The baffle (42) is placed horizontally on one side of the sleeve (2), and one end of the baffle (42) is fixedly connected to the support member (41).

5. The needle-proof infusion set according to claim 1, characterized in that: A clamping member (51) is fixedly provided on one end of the connecting tube (5) facing the double-needle infusion set (1); the clamping member (51) is a cylindrical structure, and a hole communicating with the interior of the connecting tube (5) is provided inside the clamping member (51); A sleeve connector (52) is fixedly provided at the end of the infusion tube of the double-needle infusion device (1); a plug hole (53) matching the outer diameter of the cylindrical structure clamping component (51) is provided inside the sleeve connector (52); the clamping component (51) is plugged into the plug hole (53) of the sleeve connector (52).

6. The needle-proof infusion set according to claim 5, characterized in that: The outer wall of the clamping member (51) is provided with a thread (54), and the inner wall of the plug hole (53) on the sleeve member (52) is provided with a thread groove adapted to the thread (54).

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