Tearable puncture needle

Abstract

The utility model discloses a tearable puncture needle, which is characterized by comprising a puncture needle and a handle, an oblique incision is formed in one end of the puncture needle, a plurality of mounting parts are arranged at the other end of the puncture needle, so that the puncture needle can be inserted into the handle through the mounting parts, and the handle is communicated with the puncture needle; the outer wall of the puncture needle is coated with a protective layer; first cutting grooves are formed in two opposite side walls of the puncture needle; a certain distance is formed between the two ends of each first cutting groove and the two ends of the puncture needle; second cutting grooves are formed in two opposite side walls of the handle; a certain distance is formed between the two ends of each second cutting groove and the two ends of the handle; and each first cutting groove and each second cutting groove are correspondingly arranged on the same straight line. Through the application of the tearable puncture needle, after the tearable puncture needle is used, the puncture needle can be directly broken off from the drainage tube, and the puncture needle can be directly taken out under the condition that the drainage tube does not need to be taken out.

Description

Technical Field

[0001] The utility model relates to the technical fields of medical devices and the like, and in particular to a tearable puncture needle. Background Art

[0002] Traditional cystostomy surgery requires a puncture needle and a drainage tube. The puncture needle is inserted into the bladder from two fingers above the pubic bone, and the drainage tube is sent into the bladder through the puncture needle channel. Then the puncture needle is withdrawn from the body, and the other end of the drainage tube is connected to the urine bag for drainage. At the same time, it is also necessary to fix the junction between the drainage tube and the skin to prevent leakage and sliding of the drainage tube. Therefore, traditional cystostomy surgery increases the risk of inflammation and infection in patients.

[0003] With the development of modern surgical techniques, cystostomy surgery has also made progress. The drainage tube has changed from a single tube to a double tube with a balloon, one of which is used to drain urine and the other is used to fill the balloon. The filled balloon fixes the drainage tube and prevents leakage at the junction of the drainage tube and the puncture point. The tail of the double tube needs to be connected to two interfaces, resulting in the tail size being larger than the tube body size, and the puncture needle cannot pass through the tail, so it is necessary to develop a puncture needle that can be torn for use with it.

[0004] However, for example, the puncture needle of patent CN208876699U adopts the form of an indentation notch, which requires high equipment processing accuracy and is difficult to control the size. The puncture needle with a shallow indentation is not easy to tear, while the puncture needle with a deep indentation may be torn by slight squeezing.

[0005] Or for example, the puncture needle of patent CN206526091U adopts the form of intermittent cutting, which has an intermittent feeling when being torn, and the outer surface is not smooth, which causes great damage to muscle tissue. Utility Model Content

[0006] In view of this, in order to solve the above problems, the purpose of the present utility model is to provide a tearable puncture needle, which includes:

[0007] Puncture needle and handle;

[0008] One end of the puncture needle is provided with an oblique cut, and the other end of the puncture needle is provided with a plurality of mounting parts, so that the puncture needle can be inserted into the handle through the plurality of mounting parts, and the handle is in communication with the puncture needle;

[0009] The outer wall of the puncture needle is coated with a protective layer;

[0010] The two opposite side walls of the puncture needle are both provided with a first groove;

[0011] Both ends of each of the first cutting grooves are at a certain distance from both ends of the puncture needle;

[0012] The two opposite side walls of the handle are each provided with a second groove;

[0013] Both ends of each of the second grooves are at a certain distance from both ends of the handle;

[0014] Each of the first cutting grooves and each of the second cutting grooves are correspondingly arranged on the same straight line.

[0015] The above-mentioned tearable puncture needle, wherein the handle includes: a left handle and a right handle; the left handle is installed on one of the mounting parts, the right handle is installed on the other mounting part, and the left handle and the right handle are partially connected so that two second grooves are formed between the left handle and the right handle.

[0016] In the above-mentioned tearable puncture needle, the outer contours of the left handle and the right handle are both parallelograms.

[0017] The above-mentioned tearable puncture needle, wherein the left handle and the right handle are hollow.

[0018] In the above-mentioned tearable puncture needle, the left handle and the right handle are arranged to be inclined from the mounting portion to a direction away from the mounting portion.

[0019] In the above-mentioned tearable puncture needle, the angle between the oblique cut and the central axis of the puncture needle is 20°.

[0020] In the above-mentioned tearable puncture needle, the first cutting groove is at a certain distance from the tip of the oblique cut.

[0021] Compared with the prior art, the above technical solution has the following positive effects:

[0022] Through the application of the utility model, a tearable puncture needle is provided. After use, the puncture needle can be directly broken off from the drainage tube, and the puncture needle can be directly taken out without taking out the drainage tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model is a schematic diagram of a tearable puncture needle.

[0024] Figure 2 It is a schematic diagram of the puncture needle in the utility model.

[0025] Figure 3 It is a schematic diagram of the handle in the utility model.

[0026] 1. Puncture needle; 2. Handle; 3. Oblique incision; 4. Mounting part; 5. First groove; 6. Left handle; 7. Right handle; 8. Second groove; 9. Protective layer. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations, but they are not intended to limit the present invention.

[0028] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0029] like Figures 1 to 3 As shown, a tearable puncture needle according to a preferred embodiment is shown, which includes: a puncture needle 1 and a handle 2.

[0030] An oblique incision 3 is provided at one end of the puncture needle 1, and a plurality of mounting portions 4 are provided at the other end of the puncture needle 1, so that the puncture needle 1 can be inserted into the handle 2 through the plurality of mounting portions 4, and the handle 2 is connected to the puncture needle 1; the outer wall of the puncture needle 1 is covered with a protective layer 9; the two opposite side walls of the puncture needle 1 are provided with a first groove 5; the two ends of each first groove 5 are at a certain distance from the two ends of the puncture needle 1; the two opposite side walls of the handle 2 are provided with a second groove 8; the two ends of each second groove 8 are at a certain distance from the two ends of the handle 2; each first groove 5 and each second groove 8 are correspondingly arranged in the same straight line.

[0031] In actual use, the puncture needle 1 is made of metal material, and in a preferred embodiment, it is made of stainless steel material, and one end is provided with an oblique cut 3, and the other end is a mounting portion 4 with an expanded opening. The side walls of the puncture needle 1 are provided with grooves 5, and the grooves 5 do not penetrate the puncture needle 1 from beginning to end, so that there is an uncut area at both ends of the puncture needle 1, and there is also an uncut area at both ends of the handle 2. When in use, the puncture needle 1 is inserted into the bladder, and then one end of the drainage tube is extended into the bladder through the handle 2 and the puncture needle 1, and the other end of the drainage tube is installed. The puncture needle 1 is then taken out of the bladder, while the puncture needle 1 is still wrapped around the outside of the drainage tube. The two ends of the handle 2 are then held and pried apart with force to break the puncture needle 1 and the handle 2 through the second groove 8 and the first groove 5, so that the handle 2 and the puncture needle 1 are separated from the drainage tube without affecting the balloon. When the puncture needle 1 is inserted into the bladder, the protective layer 9 can protect the puncture needle 1 from contacting the muscle tissue, thereby reducing the patient's injury. The protective layer 9 can also assist in connecting the cut puncture needle 1, thereby making the puncture needle 1 more stable as a whole during puncture and preventing passive tearing during puncture.

[0032] The utility model also has the following implementation methods based on the above:

[0033] Further, a tearable puncture needle, wherein the handle comprises: a left handle 6 and a right handle 7; the left handle 6 is mounted on one mounting portion 4, the right handle 7 is mounted on another mounting portion 4, and the left handle 6 and the right handle 7 are partially connected, so that two second grooves 8 are formed between the left handle 6 and the right handle 7. Specifically, the left handle 6 and the right handle 7 are forcibly pried apart, and the left handle 6 and the right handle 7 drive the puncture needle 1 to separate through the two mounting portions 4.

[0034] Furthermore, a tearable puncture needle is provided, wherein the outer contours of the left handle 6 and the right handle 7 are both parallelograms.

[0035] Further, a tearable puncture needle is provided, wherein the left handle 6 and the right handle 7 are hollow. Specifically, the user's fingers can be inserted into the hollow parts of the left handle 6 and the right handle 7, and then the puncture needle 1 and the handle 2 are broken off.

[0036] Furthermore, a tearable puncture needle is provided, wherein the left handle 6 and the right handle 7 are inclined from the mounting portion 4 toward a direction away from the mounting portion 4 .

[0037] Furthermore, a tearable puncture needle is provided, wherein the angle between the oblique cut 3 and the central axis of the puncture needle 1 is 20°.

[0038] Further, a tearable puncture needle, wherein a first groove 5 is at a certain distance from the tip of the oblique cut 3. Specifically, one first groove 5 is located on the straight line where the tip of the oblique cut 3 is located, and the other first groove 5 is symmetrical thereto.

[0039] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A tearable puncture needle, characterized in that: include: Puncture needle and handle; One end of the puncture needle is provided with an oblique cut, and the other end of the puncture needle is provided with a plurality of mounting parts, so that the puncture needle can be inserted into the handle through the plurality of mounting parts, and the handle is in communication with the puncture needle; The outer wall of the puncture needle is coated with a protective layer; The two opposite side walls of the puncture needle are both provided with a first groove; Both ends of each of the first cutting grooves are at a certain distance from both ends of the puncture needle; The two opposite side walls of the handle are each provided with a second groove; Both ends of each of the second grooves are at a certain distance from both ends of the handle; Each of the first cutting grooves and each of the second cutting grooves are correspondingly arranged on the same straight line.

2. A tearable puncture needle according to claim 1, characterized in that: The handle includes: a left handle and a right handle; the left handle is installed on one mounting portion, the right handle is installed on another mounting portion, and the left handle and the right handle are partially connected to form two second grooves between the left handle and the right handle.

3. A tearable puncture needle according to claim 2, characterized in that: The outer contours of the left handle and the right handle are both parallelograms.

4. The tearable puncture needle according to claim 2, characterized in that: The left handle and the right handle are hollow.

5. The tearable puncture needle according to claim 3, characterized in that: The left handle and the right handle are arranged to be inclined from the mounting portion toward a direction away from the mounting portion.

6. The tearable puncture needle according to claim 1, characterized in that: The angle between the oblique incision and the central axis of the puncture needle is 20°.

7. The tearable puncture needle according to claim 1, characterized in that: The first cutting groove has a certain distance from the tip of the oblique cut.

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