Ventricular puncture needle

Abstract

The ventricle puncture needle comprises a needle tube and a needle core, the needle tube is arranged on the outer side of the needle core in a sleeved mode, the needle tube is of a hollow tubular structure, a blunt end is arranged at the puncture end of the needle tube, an opening is formed in the blunt end, a needle head is arranged at the puncture end of the needle core, the non-puncture end of the needle core is in threaded connection with the non-puncture end of the needle tube, and when the needle core rotates, the needle head moves in the needle tube. And the needle extends to the outer side of the needle tube through the opening. The puncture needle can penetrate through hard sclerotin, the puncture difficulty is reduced, and the puncture effect is improved; the needle head can be prevented from damaging tissues, blood vessels or nerves and the like, so that the safety is improved; and the blunt end can also be used for carrying out compression hemostasis on a target spot, so that the application range is expanded, and the application range is wide.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially is related to a ventricle puncture needle. BACKGROUND

[0002] As one of the basic operations that clinical anesthesiologists must master, epidural puncture has a wide range of applications because it has less impact on the hemodynamic fluctuations of patients and can provide continuous analgesia after surgery. Epidural puncture usually requires the use of a puncture needle. The existing puncture needle is provided with a needle, which is generally divided into a sharp head and a blunt head. The sharp head is usually set as a beveled tip or a conical or pyramidal tip. The sharp head is relatively sharp and can penetrate hard bone, providing good puncture effect. However, during the puncture process, the sharp head can easily cause damage to the brain tissue, blood vessels, or nerves, etc., causing inconvenience to the postoperative recovery and comfort of the patient. If the needle of the puncture needle is set as a blunt head, it will affect the puncture effect, leading to difficulty in puncture. Therefore, there is a need to design a new ventricle puncture needle. SUMMARY

[0003] The purpose of the present application is to provide a ventricle puncture needle, which aims to solve the technical problems of the existing ventricle puncture needle, such as the sharp head easily causing damage to the brain and the poor puncture effect of the blunt head.

[0004] The present application provides a ventricle puncture needle, which comprises a needle tube and a needle core. The needle tube is sleeved on the outside of the needle core. The needle tube is a hollow tubular structure, and its puncture end is provided with a blunt head. The blunt head is provided with an opening. The puncture end of the needle core is provided with a needle. The non-puncture end of the needle core is threadedly connected with the non-puncture end of the needle tube. When the needle core rotates, the needle moves in the needle tube and extends to the outside of the needle tube through the opening.

[0005] In one embodiment, the blunt head is set as a smooth arc.

[0006] In one embodiment, the side wall of the needle tube near its puncture end is provided with a side hole.

[0007] In one embodiment, the needle core is a solid structure.

[0008] In one embodiment, the non-puncture end of the needle tube is provided with a needle tube seat, and the non-puncture end of the needle core is threadedly connected with the needle tube seat. The outer wall of the needle tube seat is provided with an anti-slip component.

[0009] In one embodiment, the non-puncture end of the needle core is provided with a needle core seat, and the outer wall of the needle core seat is provided with an anti-slip component.

[0010] In one embodiment, the outer wall of the needle tube is provided with a first scale mark, and the outer wall of the needle core is provided with a second scale mark.

[0011] In one embodiment, the needle tube is further provided with a fixing assembly, the fixing assembly is provided with a fixing tube, one end of the fixing tube is provided with an arc-shaped fixing plate with an outward opening, the fixing tube and the fixing plate are both sleeved on the outside of the needle tube and threadedly connected to the needle tube, and the fixing plate is close to the puncture end of the needle tube.

[0012] In one embodiment, an anti-slip component is provided on the outer wall of the fixing tube.

[0013] In one embodiment, the fixing plate is provided with circumferentially arranged fixing stickers.

[0014] The present invention provides a ventricular puncture needle. Compared with the prior art, its beneficial effects are as follows: by configuring the puncture end of the needle tube to be a blunt tip, providing an opening on the blunt tip, configuring the puncture end of the needle core to be a needle tip, and configuring the non-puncture end of the needle core to be threadedly connected to the non-puncture end of the needle tube, when puncture is required, the needle core is rotated, the needle tip moves within the needle tube, and extends out of the needle tube through the opening. At this time, the needle tip is outside, which can penetrate harder bone, reducing the difficulty of puncture and improving the puncture effect; after the puncture is completed, the needle core is rotated to hide the needle tip within the needle tube, and the blunt tip is outside, which can prevent the needle tip from damaging tissues, blood vessels, or nerves, thereby improving safety; the blunt tip can also be used to compress the target site to stop bleeding, thereby expanding its scope of application and having a wide range of uses. The present invention has a simple structure, is easy to operate, has low puncture difficulty, good puncture effect, high safety, wide applications, and high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 A schematic structural diagram of a ventricular puncture needle provided in one embodiment of the present application;

[0017] Figure 2 for Figure 1 The enlarged structural diagram of the ventricular puncture needle at point A is shown;

[0018] Figure 3 for Figure 1 The AA cross-sectional structure diagram of the ventricular puncture needle is shown;

[0019] Figure 4 for Figure 3 The enlarged structural diagram of the ventricular puncture needle at position B is shown;

[0020] Figure 5 As Figure 1 The use state structure diagram of the ventricular puncture needle shown in the figure;

[0021] Figure 6 As Figure 5 The enlarged structure diagram of C of the ventricular puncture needle shown in the figure.

[0022] Explanation of symbols in the figure:

[0023] 1, needle tube; 101, blunt end; 102, opening; 103, side hole; 2, needle core; 201, needle tip; 3, needle tube seat; 4, needle core seat; 5, anti-slip assembly; 6, first scale mark; 7, second scale mark; 8, fixing assembly; 801, fixing tube; 802, fixing plate; 803, fixing sticker. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the following will further describe the present application in conjunction with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and not to limit the present application.

[0025] It should be noted that when an element is referred to as being "fixed" or "disposed" with another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" with another element, it can be directly connected to the other element or indirectly connected to the other element.

[0026] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0027] Please refer to Figure 1 A structure diagram of a ventricular puncture needle provided by an embodiment of the present application is shown in the figure, only the parts related to the present embodiment are shown for the convenience of description, and the details are as follows:

[0028] In one embodiment, please refer to Figures 2-6The utility model provides a ventricle puncture needle, including needle tube 1 and needle core 2, needle tube 1 is set on the outside of needle core 2, needle tube 1 is hollow tubular structure, its puncture end is equipped with blunt head 101, and the opening 102 is equipped on blunt head 101, and the puncture end of needle core 2 is equipped with needle head 201, and the non-puncture end of needle core 2 is threadedly connected with the non-puncture end of needle tube 1, when needle core 2 rotates, needle head 201 moves in needle tube 1 and extends to the outside of needle tube 1 through the opening 102.

[0029] By setting the puncture end of needle tube 1 as blunt head 101, and the opening 102 on blunt head 101, and setting the puncture end of needle core 2 as needle head 201, and setting the non-puncture end of needle core 2 and the non-puncture end of needle tube 1 as threadedly connected, when needing to puncture, rotating needle core 2, needle head 201 moves in needle tube 1 and extends to the outside of needle tube 1 through the opening 102, at this time, needle head 201 is outside, can penetrate the harder bone, reduces the puncture difficulty, improves the puncture effect, when puncture ends, rotating needle core 2, hides needle head 201 in needle tube 1, at this time, blunt head 101 is outside, can avoid needle head 201 to cause damage to tissue, blood vessel or nerve etc., improves the security, blunt head 101 can also be used to carry out compression hemostasis to target point, expands its application range, and the use is wide.

[0030] Specifically, please refer to Figure 6 Blunt head 101 is set as smooth arc, and is smooth and round without angle, will not cause damage to tissue, blood vessel or nerve etc., and is high in security.Needle head 201 is set as conical sharp head, and such setting helps to reduce resistance in the puncture process, reduces the puncture difficulty, makes the puncture operation more smooth.

[0031] In one embodiment, please refer to Figure 1 And Figure 6 The side wall of needle tube 1 is equipped with side hole 103 near its puncture end, and through side hole 103, the content in the ventricle can be drained or the ventricle can be washed, drug injection operation etc., expands its application range, and the use is wide.

[0032] In one embodiment, please refer to Figure 3 Needle core 2 is solid structure, and the solid structure needle core 2 has better rigidity and stability, so that linear advancement can be kept in the puncture process, reduces the possibility of bending or deviation, and improves the puncture accuracy.

[0033] In one embodiment, please refer to Figure 1The non-piercing end of the needle tube 1 is provided with a needle tube seat 3, and the non-piercing end of the needle core 2 is threadedly connected with the needle tube seat 3; the outer wall of the needle tube seat 3 is provided with an anti-skid component 5, which can increase the friction between the fingers and the needle tube seat 3, so that the medical staff can more stably rotate and hold the needle tube seat 3 during the operation process, and the operation failure or the accidental situation caused by the hand slip is reduced.

[0034] In one embodiment, referring to Figure 1 The non-piercing end of the needle core 2 is provided with a needle core seat 4, and the outer wall of the needle core seat 4 is provided with an anti-skid component 5, which plays an anti-skid role and provides safety for the puncture.

[0035] In this embodiment, referring to Figure 1 and Figure 5 The anti-skid components 5 on the needle tube seat 3 and the needle core seat 4 are annular anti-skid protrusions, and the anti-skid components 5 can also be other types of anti-skid protrusions or knurls, which are determined according to the specific working conditions.

[0036] In one embodiment, referring to Figure 1 The outer wall of the needle tube 1 is provided with a first scale mark 6, which facilitates the control of the puncture depth, improves the puncture accuracy, avoids unnecessary damage to the patient caused by the puncture depth being too large, and effectively prevents puncture accidents.

[0037] In one embodiment, referring to Figure 1 The outer wall of the needle core 2 is provided with a second scale mark 7, which is used to control the depth of the needle core 2 rotating and screwing into the needle tube 1, and then control the length of the needle head 201 extending to the outside of the needle tube 1, so as to improve the puncture accuracy during the puncture and avoid damage to the tissues, blood vessels or nerves caused by the needle head 201 after the puncture is completed.

[0038] In one embodiment, referring to Figure 1 The first scale mark 6 and the second scale mark 7 are annular scale lines, so that the scale lines can be seen regardless of the rotation of the needle tube 1 and the needle core 2. The scale lines can be drawn by a laser shallow etching method, which is safe and not easy to fade.

[0039] In one embodiment, referring to Figure 1 and Figure 3The needle tube 1 is further provided with a fixing assembly 8, the fixing assembly 8 is provided with a fixing tube 801, one end of the fixing tube 801 is provided with an arc-shaped opening outward fixing plate 802, the fixing tube 801 and the fixing plate 802 are both sleeved on the outside of the needle tube 1 and are in threaded connection with the needle tube 1, and the fixing plate 802 is close to the puncture end of the needle tube 1. The fixing assembly 8 is used for keeping the needle tube 1 stable during puncture, reducing the puncture deviation caused by hand shaking or improper operation, and improving the accuracy and safety of puncture; in addition, the fixing assembly 8 also has the function of limiting, preventing the needle tube 1 from puncturing too deep and causing puncture accidents. The arc-shaped fixing plate 802 can better fit the brain of the patient.

[0040] In one embodiment, referring to Figure 1 and Figure 5 , the outer wall of the fixing tube 801 is provided with an anti-skid assembly 5, which can increase the friction between the fingers and the fixing tube 801, so that the medical staff can hold the fixing tube 801 more stably during operation, and reduce the occurrence of operation errors or accidents caused by hand slipping.

[0041] In this embodiment, referring to Figure 1 and Figure 5 , the anti-skid assembly 5 on the fixing tube 801 is arranged as an annular anti-skid protrusion, and the anti-skid assembly 5 can also be other types of anti-skid protrusions or knurls, depending on the specific working conditions.

[0042] In one embodiment, referring to Figures 1-2 , the fixing plate 802 is provided with a fixing patch 803 arranged in a circle, which is used to fix the fixing plate 802 to the brain of the patient, so that the needle tube 1 is more stable after being inserted into the brain ventricle, and the safety of use is increased.

[0043] In one embodiment, referring to Figure 1 , the materials of the needle tube 1 and the needle core 2 are both metal, which can be medical-grade stainless steel or other materials, as long as they have good biocompatibility and do not cause adverse reactions to the patient's tissues. The metal material has high hardness and toughness, which can ensure that the brain ventricle puncture needle maintains a stable shape and sufficient penetration during puncture, and ensures the accuracy of puncture.

[0044] The working process of a brain ventricle puncture needle according to the present application is described as follows in combination with Figures 1-6 .

[0045] In use, before puncture, a hole is drilled in the corresponding position of the brain through a skull drill, then the needle core 2 is rotated to hide the needle head 201 into the needle tube 1, and then the fixing plate 802 is fixed to the corresponding part of the brain through the fixing patch 803;

[0046] When puncturing, the left hand tightly holds the fixed tube 801, the right hand rotates the needle tube 1, the needle tube 1 is inserted, and the puncture depth is determined by the first scale mark 6; when the needle tube 1 punctures to the dura mater layer, resistance can be felt, at this time, the needle core 2 is rotated, the needle head 201 is extended to the outside of the needle tube 1 through the opening 102, so that the needle head 201 is outside, and the length of the needle head 201 extending to the outside of the needle tube 1 is grasped through the second scale mark 7, then the needle tube 1 is rotated again, the needle tube 1 drives the needle head 201 to puncture the dura mater layer, and the resistance is weakened; after the dura mater layer is punctured, the needle core 2 is reversely rotated, the needle head 201 is hidden in the needle tube 1, and the second scale mark 7 is used to determine that the needle head 201 is completely hidden in the needle tube 1; the needle tube 1 is rotated again, continues to puncture, and the first scale mark 6 is used to determine that the needle tube 1 reaches the puncture position;

[0047] After puncturing is completed, the needle core 2 is reversely rotated until the needle core 2 is pulled out of the needle tube 1, whether the cerebrospinal fluid flows out is confirmed, then a drainage tube is connected to the non-puncture end of the needle tube 1, and the contents in the brain ventricle can be drained or the brain ventricle can be washed, drug injection and other operations are performed through the side hole 103. The blunt head 101 can also be used for compressing and stopping bleeding of a target point.

[0048] The brain ventricle puncture needle has the functions of puncturing, sucking, washing, injecting drugs, compressing and observing a target point, and has wide application.

[0049] In summary, the brain ventricle puncture needle is provided, the puncture end of the needle tube is arranged as a blunt head, the opening is arranged on the blunt head, the puncture end of the needle core is arranged as a needle head, the non-puncture end of the needle core and the non-puncture end of the needle tube are arranged in threaded connection, when puncturing is needed, the needle core is rotated, the needle head moves in the needle tube and extends to the outside of the needle tube through the opening, at this time, the needle head is outside, can penetrate hard bone, reduces the puncture difficulty and improves the puncture effect; when puncturing is completed, the needle core is rotated, the needle head is hidden in the needle tube, at this time, the blunt head is outside, can avoid damage to tissues, blood vessels or nerves caused by the needle head, improves the safety, the blunt head can also be used for compressing and stopping bleeding of a target point, expands the application range and has wide application. The brain ventricle puncture needle has the advantages of simple structure, convenient operation, low puncture difficulty, good puncture effect, high safety, wide application and high practicality, and can be widely applied to the technical field of medical instruments.

[0050] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; the modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A ventricular puncture needle, comprising a needle tube (1) and a needle core (2), wherein the needle tube (1) is sleeved on the outer side of the needle core (2), characterized in that: The needle tube (1) is a hollow tubular structure, and a blunt head (101) is provided at its puncture end. The blunt head (101) is provided with an opening (102). The puncture end of the needle core (2) is provided with a needle head (201). The non-puncture end of the needle core (2) is threadedly connected to the non-puncture end of the needle tube (1). When the needle core (2) rotates, the needle head (201) moves in the needle tube (1) and extends to the outside of the needle tube (1) through the opening (102).

2. The ventricular puncture needle according to claim 1, wherein The blunt head (101) is configured to be in a smooth arc shape.

3. The ventricular puncture needle according to claim 1, wherein A side hole (103) is provided on the side wall of the needle tube (1) near its puncture end.

4. The ventricular puncture needle according to claim 1, wherein The needle core (2) is a solid structure.

5. The ventricular puncture needle according to claim 1, characterized in that: The non-puncture end of the needle tube (1) is provided with a needle tube seat (3), and the non-puncture end of the needle core (2) is threadedly connected to the needle tube seat (3); an anti-slip component (5) is provided on the outer wall of the needle tube seat (3).

6. The ventricular puncture needle according to claim 1, wherein The non-puncture end of the needle core (2) is provided with a needle core seat (4), and an anti-slip component (5) is provided on the outer wall of the needle core seat (4).

7. The ventricular puncture needle according to claim 1, wherein A first scale mark (6) is provided on the outer wall of the needle tube (1), and a second scale mark (7) is provided on the outer wall of the needle core (2).

8. The ventricular puncture needle according to any one of claims 1 to 7, characterized in that: The needle tube (1) is further provided with a fixing assembly (8), the fixing assembly (8) being provided with a fixing tube (801), one end of the fixing tube (801) being provided with an arc-shaped fixing plate (802) with an outward opening, the fixing tube (801) and the fixing plate (802) being both sleeved on the outside of the needle tube (1) and being threadedly connected to the needle tube (1), the fixing plate (802) being close to the puncture end of the needle tube (1).

9. The ventricular puncture needle according to claim 8, characterized in that: An anti-slip component (5) is provided on the outer wall of the fixed tube (801).

10. The ventricular puncture needle according to claim 8, characterized in that: The fixing plate (802) is provided with fixing stickers (803) arranged circumferentially.

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