Hand pricking prevention puncture needle with operating handle

Abstract

The utility model discloses an anti-pricking puncture needle with an operating handle, which relates to the technical field of puncture needles and comprises a needle tube, a needle head is fixedly connected to the top end of the needle tube, a needle sleeve is sleeved on the outer side of the needle tube, a fixed tube is fixedly connected to the bottom end of the needle tube, and a clamping mechanism consisting of a movable plate, a clamping block and a pressing block is clamped between the fixed tube and the needle sleeve. The needle sleeve is arranged on the outer side of the needle tube in a sleeved mode, the needle sleeve can slide between the needle head and the needle tube in a switching mode, the needle sleeve is arranged on the outer side of the needle head in a sleeved mode, the needle head is isolated from the outside, the hand pricking prevention effect is achieved, the needle head is protected, the needle head is prevented from being damaged, and the needle sleeve is not prone to falling off and being lost. Meanwhile, the needle sleeve is clamped at the needle head through the first convex block and the second convex block, so that the needle sleeve is prevented from slipping.

Description

Technical Field

[0001] The utility model relates to the technical field of puncture needles, in particular to a hand-piercing puncture needle with an operating handle. Background Art

[0002] The puncture needle is a medical device used for tissue sampling and injection treatment of various organs such as the kidney, liver, lung, breast, thyroid, prostate, pancreas, testicles, uterus, ovaries, and body surface during minimally invasive surgery. When the puncture needle is not in use, a needle cap will be placed on the needle tip.

[0003] The existing needle cap of the puncture needle, such as the puncture needle safety cover with technical disclosure number CN102783993A, is designed to be separated from the puncture needle. There is no connecting part between the needle cap and the puncture needle, so that the needle cap can easily fall off the puncture needle, resulting in the inability to provide the functions of preventing punctures and protecting the needle tip. At the same time, the needle cap itself has a small structure and is easy to be lost after being removed. Utility Model Content

[0004] The utility model aims to make up for the defect of the prior art that the needle cap is easy to fall off and lose, and provides a hand-piercing-proof puncture needle with a built-in operating handle.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hand-piercing puncture needle with an operating handle, comprising a needle tube, a needle head is fixedly connected to the top end of the needle tube, a hose is connected to the bottom end of the needle tube, a needle sleeve is provided on the outer side of the needle tube, a fixed tube is fixedly connected to the bottom end of the needle tube, and the hose passes through the fixed tube and is connected to the needle tube, the top end of the fixed tube is inserted in the needle sleeve, a clamping mechanism is provided on the fixed tube, and the clamping mechanism is clamped with the needle sleeve.

[0006] As mentioned above, a first protrusion is integrated into the inner wall of the needle sleeve near the bottom end, a second protrusion is provided on the outer side of the needle tube near the top end, and both the first protrusion and the second protrusion are elliptical, and a scraping edge is provided on the top end of the needle tube.

[0007] As mentioned above, the clamping mechanism includes two movable plates, the left and right sides of the fixed tube are provided with slots, and the two movable plates are respectively connected to the two slots, the two movable plates extend into the needle sleeve, and the two movable plates are fixedly connected with a clamping block, the inner wall of the needle sleeve is provided with a clamping groove matching the clamping block, and the two movable plates are provided with a pressing block.

[0008] As mentioned above, the needle sleeve, fixed tube, movable plate, clamping block and pressing block are all made of plastic material, and the fixed tube, movable plate, clamping block and pressing block are integrated, and the needle sleeve is fully transparent.

[0009] As mentioned above, both sides of the needle sleeve are provided with hand-held pieces near the top, the two hand-held pieces are integrated, and a through hole is opened in the middle, the needle sleeve passes through the through hole to be connected with the needle tube, and is fixedly connected with the hand-held piece.

[0010] Compared with the prior art, the anti-prick-hand puncture needle with a built-in operating handle has the following beneficial effects: the utility model arranges a needle cover on the outside of the needle tube, and the needle cover can switch and slide between the needle head and the needle tube, so that the needle cover is covered on the outside of the needle head, isolating the needle head from the outside world, achieving the anti-prick-hand effect, providing protection for the needle head to avoid damage to the needle head, and the needle cover is not easy to fall off and lost. At the same time, the needle cover is stuck on the needle head through the first protrusion and the second protrusion to prevent the needle cover from slipping.

[0011] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the clamping mechanism of the utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the needle sleeve of the utility model being sleeved on the needle head;

[0016] Figure 5 It is a schematic diagram of the structure of the first bump and the second bump of the utility model.

[0017] In the figure: 1, needle tube; 101, second protrusion; 2, needle; 3, hose; 4, needle sleeve; 401, first protrusion; 5, fixed tube; 501, movable plate; 502, pressing block; 503, clamping block; 6, hand-held piece. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1-5As shown, the utility model provides a technical solution: a hand-piercing-proof puncture needle with an operating handle, comprising a needle tube 1, a needle 2 is fixedly connected to the top end of the needle tube 1, a hose 3 is connected to the bottom end of the needle tube 1, a needle sleeve 4 is sleeved on the outside of the needle tube 1, a fixed tube 5 is fixedly connected to the bottom end of the needle tube 1, and the hose 3 passes through the fixed tube 5 and is connected to the needle tube 1, the top end of the fixed tube 5 is inserted in the needle sleeve 4, a clamping mechanism is provided on the fixed tube 5, and the clamping mechanism is clamped with the needle sleeve 4.

[0020] According to the overall structure of the device, the needle cover 4 is sleeved on the outside of the needle tube 1 and fixed by a clamping mechanism. The needle cover 4 is slid toward the needle 2 by releasing the clamping mechanism, so that the needle cover 4 is located on the outside of the needle 2, thereby isolating the needle 2 to avoid the needle 2 from pricking the hand and protecting the needle 2. During use, the clamping mechanism can fix the needle cover 4 to prevent it from sliding and affecting the use of the puncture needle.

[0021] like Figure 5 As shown, a first protrusion 401 is integrated on the inner wall of the needle sleeve 4 near the bottom end, and a second protrusion 101 is provided on the outer side of the needle tube 1 near the top end. Both the first protrusion 401 and the second protrusion 101 are elliptical, and a scraping edge is provided on the top end of the needle tube 1.

[0022] The needle cover 4 is expanded outward by releasing and squeezing the first protrusion 401 and the second protrusion 101. When the first protrusion 401 passes over the second protrusion 101, the needle cover 4 returns to its original shape, so that the first protrusion 401 is stuck between the second protrusion 101 and the scraping edge, thereby fixing the needle cover 4 to prevent the needle cover 4 from slipping off the needle head 2, and facilitating the removal of the needle cover 4 from the needle head 2 when the puncture needle is used.

[0023] like Figure 3 As shown, the clamping mechanism includes two movable plates 501, and slots are provided on the left and right sides of the fixed tube 5, and the two movable plates 501 are respectively connected to the two slots, and the two movable plates 501 extend into the needle sleeve 4, and a clamping block 503 is fixedly connected to the two movable plates 501, and a clamping groove matching the clamping block 503 is provided on the inner wall of the needle sleeve 4, and a pressing block 502 is provided on the two movable plates 501.

[0024] The needle sheath 4 is fixed to the outside of the needle tube 1 by the engagement of the block 503 with the slot, which facilitates the loosening and sliding of the needle sheath 4 and prevents the needle sheath 4 from moving during the puncture operation and affecting the operation process.

[0025] like Figure 2 , 3 As shown, the needle sleeve 4, the fixed tube 5, the movable plate 501, the block 503 and the pressing block 502 are all made of plastic, and the fixed tube 5, the movable plate 501, the block 503 and the pressing block 502 are integrated, and the needle sleeve 4 is fully transparent.

[0026] By using a mold made of plastic material, the needle sleeve 4, the fixed tube 5, and the movable plate 501 can be quickly integrated into one, thereby improving the production efficiency of components, and the transparent setting makes it easy to observe the internal conditions.

[0027] like Figure 1 , 2 As shown, a hand-held piece 6 is provided near the top on both sides of the needle sleeve 4. The two hand-held pieces 6 are integrated and have a through hole in the middle. The needle sleeve 4 passes through the through hole to connect with the needle tube 1 and is fixedly connected with the hand-held piece 6.

[0028] The holding pieces 6 on both sides make it easy to hold the puncture needle, and the grooves on the holding piece 6 make the surface of the holding piece 6 rough, thereby increasing the friction force when holding, and preventing the needle from slipping out of the hand.

[0029] Working principle: When in use, hold the hose 3 with one hand and press the pressing blocks 502 on both sides. The pressing blocks 502 drive the movable plate 501 to deflect inward, so that the clamping block 503 is separated from the clamping slot, thereby releasing the connection between the needle sleeve 4 and the fixed tube 5. Then, hold the needle sleeve 4 with the other hand and move it upward to the needle head 2, so that the first protrusion 401 passes over the second protrusion 101, and the first protrusion 401 is stuck between the second protrusion 101 and the scraping edge at the top of the needle tube 1 to fix the needle sleeve 4.

[0030] It should be noted that, in this article, the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or a connection between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hand-piercing puncture needle with an operating handle, comprising a needle tube (1), a needle (2) fixedly connected to the top end of the needle tube (1), and a hose (3) connected to the bottom end of the needle tube (1), characterized in that: The needle tube (1) is provided with a needle sleeve (4) on the outside, the bottom end of the needle tube (1) is fixedly connected to a fixed tube (5), and the hose (3) passes through the fixed tube (5) and is connected to the needle tube (1), the top end of the fixed tube (5) is inserted into the needle sleeve (4), and a clamping mechanism is provided on the fixed tube (5), and the clamping mechanism is clamped with the needle sleeve (4).

2. The anti-prick puncture needle with an operating handle according to claim 1, characterized in that: A first protrusion (401) is integrally formed on the inner wall of the needle sleeve (4) near the bottom end, a second protrusion (101) is formed on the outer side of the needle tube (1) near the top end, and both the first protrusion (401) and the second protrusion (101) are elliptical in shape, and a scraping edge is formed on the top end of the needle tube (1).

3. The anti-prick puncture needle with an operating handle according to claim 1, characterized in that: The clamping mechanism comprises two movable plates (501), the left and right sides of the fixed tube (5) are both provided with slots, and the two movable plates (501) are respectively connected to the two slots, the two movable plates (501) both extend into the needle sleeve (4), and a clamping block (503) is fixedly connected to the two movable plates (501), the inner wall of the needle sleeve (4) is provided with a clamping groove matching the clamping block (503), and the two movable plates (501) are both provided with a pressing block (502).

4. The hand-protecting puncture needle with a built-in operating handle according to claim 3, characterized in that: The needle sleeve (4), the fixed tube (5), the movable plate (501), the clamping block (503) and the pressing block (502) are all made of plastic material, and the fixed tube (5), the movable plate (501), the clamping block (503) and the pressing block (502) are integrated, and the needle sleeve (4) is fully transparent.

5. The anti-prick puncture needle with an operating handle according to claim 1, characterized in that: A hand-held piece (6) is provided near the top end on both sides of the needle sleeve (4); the two hand-held pieces (6) are integrated and have a through hole in the middle; the needle sleeve (4) passes through the through hole to be connected to the needle tube (1) and is fixedly connected to the hand-held piece (6).

Images