Medical guide needle and protective device thereof

Abstract

The utility model belongs to the technical field of medical instruments, and discloses a medical guiding needle which comprises a needle head part, a needle tip part and a needle head body. The bent connecting part comprises a bent tube, and one end of the bent tube is connected with the needle head body; one end of the needle handle is connected with the bent tube; a scale observation opening is formed in the needle handle; and the end part of the outer side of the needle handle is sleeved with an anti-skid plug. A medical guide needle protection device comprises a protection plate; the clamping groove is formed in the protection plate; a guide needle fixing groove is formed in the fixing plate; the first connecting belt and the second connecting belt are fixed to the two sides of the protection plate, and a hook-and-loop fastener assembly is arranged at the joint of the first connecting belt and the second connecting belt. The puncture needle is reasonable in structural design, small in puncture resistance, small in puncture wound, convenient for doctors to perform puncture operation, not easy to rotate during puncture, and more accurate in puncture.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a medical guide needle and a protective device thereof. Background Art

[0002] A guide needle is a commonly used medical device in puncture surgery and can be inserted into a certain location inside the human body to provide direction or positioning for subsequent surgical operations.

[0003] The existing guide needle has the following disadvantages: the puncture wound is large, which is inconvenient for doctors to perform puncture operations. Moreover, when doctors hold the guide needle to puncture patients, the guide needle is easy to rotate due to the doctor's operation and the patient's shaking, etc., thus affecting the accuracy of puncture. Utility Model Content

[0004] The present application provides a medical guide needle and a protective device thereof, which are reasonably designed, easy to operate, and not easy to rotate during puncture, making puncture more accurate, and solving the problems raised in the background technology.

[0005] The technical solutions adopted are as follows:

[0006] A medical guide needle comprises: a needle head, including a needle tip and a needle body; the needle tip comprises a long cutting edge plane and a short cutting edge plane opened on the needle body, and the long cutting edge plane and the short cutting edge plane are designed asymmetrically; the needle body is provided with an operation port for operation; a curved connection portion, including a curved tube, one end of which is connected to the needle body; a needle handle, one end of which is connected to the curved tube; a scale observation port is opened on the needle handle, and a glass is installed on the scale observation port; the outer end of the needle handle is sleeved with an anti-slip plug.

[0007] According to a further technical solution, both ends of the curved tube are respectively provided with a first internal threaded portion and a second internal threaded portion; a first threaded shaft is installed on the needle body, and the first threaded shaft on the needle body is movably connected to the curved tube through the first internal threaded portion; a second threaded shaft is installed on the needle handle, and the second threaded shaft on the needle handle is movably connected to the curved tube through the second internal threaded portion.

[0008] According to a further technical solution, a first clamping seat corresponding to the first internal threaded portion and a second clamping seat corresponding to the second internal threaded portion are provided inside the bending tube.

[0009] According to a further technical solution, a fixing sleeve is mounted on the needle handle, and two sheet-shaped operating handles are symmetrically arranged on the fixing sleeve.

[0010] The utility model discloses a medical guide needle protection device, which is used to fix the aforementioned medical guide needle, and comprises: a protection plate; a slot provided on the protection plate; a fixing plate which is clamped in the slot and is used to fix the medical guide needle, and the fixing plate is provided with a guide needle fixing slot; a first connecting belt and a second connecting belt fixed on both sides of the protection plate, and a Velcro assembly is provided at the connection between the first connecting belt and the second connecting belt, which is used to connect the first connecting belt and the second connecting belt.

[0011] According to a further technical solution, a groove body is provided on the fixing plate which is connected to the fixing groove of the guide needle.

[0012] According to a further technical solution, the Velcro assembly includes a mother Velcro installed on the first connecting belt and a daughter Velcro installed on the second connecting belt.

[0013] According to a further technical solution, the protective plate is curved and its shape fits the shape of the human body.

[0014] According to a further technical solution, a plurality of supporting rubber pads are installed on the protective plate.

[0015] By adopting the above technical solution, compared with the prior art, the beneficial effects of the technology of this patent are:

[0016] 1. The utility model has a reasonable structural design, small puncture resistance, small puncture wound, convenient for doctors to perform puncture operations, and it is not easy to rotate during puncture, making the puncture more accurate.

[0017] 2. The needle head, the curved tube and the needle handle of the utility model are assembled and installed in combination, which is convenient for disassembly and more conducive to production and maintenance.

[0018] 3. The protective device in the utility model can install the guide needle on the human body and can achieve rapid binding, thus playing a good protective role. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0020] Figure 1 The figure is a schematic structural diagram of a medical guide needle according to an embodiment of the present utility model.

[0021] Figure 2 It is a schematic diagram of the side structure of a curved connection portion of an embodiment of the utility model.

[0022] Figure 3 It is a schematic diagram of the top structure of the protective plate of the utility model.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the protective plate of the utility model. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0025] Example 1

[0026] like Figure 1-2 As shown, a medical guide needle comprises a needle head, a curved connecting part and a needle handle.

[0027] The needle head includes a needle tip and a needle body 6. The needle tip includes a long blade plane 1 and a short blade plane 2 opened on the needle body, and the long blade plane 1 and the short blade plane 2 are asymmetrically designed. The needle body is provided with an operation port for operation. There is also a short transition surface between the long blade plane and the needle head, and there is also a long transition surface 3 between the short blade plane 2 and the needle head.

[0028] The curved connection portion comprises a curved tube 7, one end of which is connected to the needle body.

[0029] The needle handle 8 has one end connected to the curved tube. The needle handle 8 is provided with a scale observation port 9, and a glass is installed on the scale observation port 9. The outer end of the needle handle 8 is sleeved with an anti-slip plug.

[0030] The two ends of the curved tube 7 are respectively provided with a first internal threaded portion and a second internal threaded portion. A first threaded shaft is installed on the needle body 6, and the first threaded shaft on the needle body 6 is movably connected to the curved tube 7 through the first internal threaded portion. A second threaded shaft is installed on the needle handle 8, and the second threaded shaft on the needle handle 8 is movably connected to the curved tube 7 through the second internal threaded portion. The interior of the curved tube is provided with a first clamping seat 13 corresponding to the first internal threaded portion and a second clamping seat 14 corresponding to the second internal threaded portion. Such a design can quickly and accurately locate the connection between the curved tube, the needle handle, and the needle body.

[0031] A fixing sleeve 11 is sleeved on the needle handle, and two sheet-shaped operating handles 10 are symmetrically arranged on the fixing sleeve 11.

[0032] The utility model has reasonable structural design, small puncture resistance and small puncture wound, which is convenient for doctors to perform puncture operations. Moreover, it is not easy to rotate during puncture, so that the puncture is more accurate.

[0033] The needle head, the curved tube and the needle handle of the utility model can be assembled and disassembled conveniently, which is more conducive to production and maintenance.

[0034] Example 2

[0035] A medical guide needle protection device is used to fix the medical guide needle in embodiment 1.

[0036] The medical guide needle protection device includes: a protection plate 23; a card slot provided on the protection plate 23; a fixing plate 18 connected in the card slot and used to fix the medical guide needle; and a guide needle fixing slot 19 is provided on the fixing plate 18. A first connecting belt 15 and a second connecting belt 21 are fixed on both sides of the protection plate 23, and a Velcro assembly is provided at the connection between the first connecting belt 15 and the second connecting belt 21 for connecting the first connecting belt and the second connecting belt. The Velcro assembly includes a mother Velcro 16 installed on the first connecting belt and a child Velcro 20 installed on the second connecting belt.

[0037] The fixing plate begins to connect the groove body of the guide needle fixing groove. The protective plate is curved and fits the shape of the human body. A plurality of supporting rubber pads are installed on the protective plate.

[0038] During use, after the medical guide needle is used up, the protective plate and the guide needle fixing groove 19 fix the medical guide needle, tightly fitting it to the surface of the human body to avoid movement.

[0039] The protective device of the utility model can install the guide needle on the human body and can realize rapid binding, thus playing a good protective role.

[0040] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the present invention. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not present in the present invention. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present invention are indicated by the appended claims.

[0041] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A medical guide needle, characterized in that: include: The needle head comprises a needle tip and a needle body; the needle tip comprises a long cutting edge plane and a short cutting edge plane provided on the needle body, and the long cutting edge plane and the short cutting edge plane are designed asymmetrically; the needle body is provided with an operation port for operation; A curved connecting portion, comprising a curved tube, one end of which is connected to the needle body; The needle handle has one end connected to the curved tube; a scale observation port is provided on the needle handle, and a glass is installed on the scale observation port; and an anti-slip plug is sleeved on the outer end of the needle handle.

2. A medical guide needle according to claim 1, characterized in that: The two ends of the curved tube are respectively provided with a first internal threaded portion and a second internal threaded portion; a first threaded shaft is installed on the needle body, and the first threaded shaft on the needle body is movably connected to the curved tube through the first internal threaded portion; a second threaded shaft is installed on the needle handle, and the second threaded shaft on the needle handle is movably connected to the curved tube through the second internal threaded portion.

3. A medical guide needle according to claim 2, characterized in that: A first clamping seat corresponding to the first internal threaded portion and a second clamping seat corresponding to the second internal threaded portion are provided inside the bending pipe.

4. A medical guide needle according to claim 1, characterized in that: The needle handle is sleeved with a fixing sleeve, and the fixing sleeve is symmetrically provided with two sheet-shaped operating handles.

5. A medical guide needle protection device, used to fix the medical guide needle according to any one of claims 1 to 4, characterized in that: include: Protective plate; A card slot provided on the protective plate; A fixing plate that is clamped in the clamping slot and used to fix the medical guide needle, and the fixing plate is provided with a guide needle fixing slot; A first connecting belt and a second connecting belt are fixed on both sides of the protective plate, and a Velcro assembly is provided at the connection between the first connecting belt and the second connecting belt for connecting the first connecting belt and the second connecting belt.

6. A medical guide needle protection device according to claim 5, characterized in that: The groove body on the fixing plate begins to communicate with the guide needle fixing groove.

7. A medical guide needle protection device according to claim 6, characterized in that: The Velcro assembly includes a mother Velcro installed on the first connecting belt and a daughter Velcro installed on the second connecting belt.

8. A medical guide needle protection device according to claim 7, characterized in that: The protective plate is curved and fits the shape of the human body.

9. A medical guide needle protection device according to claim 8, characterized in that: A plurality of supporting rubber pads are installed on the protective plate.

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