Convenient occlusive biopsy needle

Abstract

The present invention discloses a convenient blocking biopsy needle, comprising a guide needle, a connecting mechanism, a mounting plate, a cavity, a moving mechanism, a spring, a blocking mechanism, an observation mechanism, and a scale. When the puncture needle is taken out from the inside of the guide needle, the convenient blocking biopsy needle isolates the puncture point of the patient from the outside world through the function of the blocking mechanism, thereby preventing the blood in the patient's body from being discharged to the outside world through the guide needle. It can be seen that by using the device in the present application, the patient can be protected.

Description

Technical Field

[0001] The invention relates to the technical field of medical appliances, and in particular to a convenient blocking biopsy needle. Background Art

[0002] Biopsy is the abbreviation of "live tissue examination", also known as surgical pathology examination, which refers to the technology of removing diseased tissue from the patient's body by cutting, clamping or puncturing for pathological examination in response to the needs of diagnosis and treatment. It is the most important part of diagnostic pathology. A clear histopathological diagnosis can be made for the vast majority of cases submitted for examination, and it is used as the final clinical diagnosis.

[0003] For liver puncture biopsy, in order to avoid bleeding caused by multiple needle insertions, the coaxial needle that matches the puncture needle is only inserted once. Each time the biopsy needle is inserted from the coaxial needle to extract the diseased tissue, when the medical staff removes the puncture needle from the inside of the coaxial needle, the blood in the patient's puncture site will flow out of the coaxial needle. In view of the above defects, it is necessary to design a convenient blocking biopsy needle. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a convenient blocking biopsy needle to solve the problem raised by the background technology.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a convenient blocking biopsy needle, including a guide needle, a connecting mechanism, a mounting plate, a cavity, a moving mechanism, a spring, a blocking mechanism, an observation mechanism, and a scale. The right side sealing fixing sleeve of the guide needle is provided with a connecting mechanism, and the right side fixing sleeve outside the guide needle is provided with a mounting plate. The cross-section of the mounting plate is circular, and cavities are integrally provided at the upper and lower ends of the interior of the mounting plate. A moving mechanism is slidably provided inside the cavity. The moving mechanism sequentially passes through the mounting plate and the guide needle. The moving mechanism is made of rubber material, and a spring is fixedly provided on the outside of the moving mechanism. The other end of the spring is fixedly connected to the mounting plate. A blocking mechanism is fixedly provided on the inside of the moving mechanism. Observation mechanisms are integrally provided at the upper and lower ends of the interior of the right side of the mounting plate, and a scale is integrally provided on the outside of the guide needle.

[0006] Furthermore, the connecting mechanism is composed of a connecting column and a clearance hole.

[0007] Furthermore, the sealing fixing sleeve on the right side of the guide needle is provided with a connecting column, and a clearance hole is integrally provided inside the connecting column, and the clearance hole is a circular through hole.

[0008] Furthermore, the moving mechanism is composed of a slider and a connecting pin.

[0009] Furthermore, a slider is slidably provided inside the cavity, the slider is made of rubber material, and the slider is fixedly connected to a spring.

[0010] Furthermore, a connecting pin is fixedly provided on the inner side of the sliding block, the connecting pin slides through the mounting plate, and the connecting pin slides through the guide pin.

[0011] Furthermore, the blocking mechanism is composed of a wedge block and a sealing strip.

[0012] Furthermore, a wedge-shaped block is fixedly arranged on the inner side of the connecting pin, and a sealing strip is fixedly arranged on the left side of the outer wall of the wedge-shaped block by adhesive.

[0013] Furthermore, the observation mechanism consists of a mounting hole and a transparent film.

[0014] Furthermore, mounting holes are integrally provided at the upper and lower ends of the right side of the mounting plate, the mounting holes are through holes, and a transparent film is sealed and fixed inside the mounting holes with adhesive.

[0015] Compared with the prior art, this convenient blocking biopsy needle, when the puncture needle is taken out from the inside of the guide needle, the function of the blocking mechanism is used to isolate the patient's puncture point from the outside world, thereby preventing the blood in the patient's body from being discharged to the outside world through the guide needle. It can be seen that by using the device in this application, the patient can be protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a main cross-sectional view of the convenient occluding biopsy needle;

[0017] Figure 2 is an enlarged cross-sectional view of the interior of the mounting plate;

[0018] Figure 3 is a side view of the mounting plate;

[0019] Figure 4 This is the front view of the convenient occlusion biopsy needle;

[0020] Figure 5 It is a side view of the connecting mechanism.

[0021] Guide pin 1, connecting mechanism 2, mounting plate 3, cavity 4, moving mechanism 5, spring 6, blocking mechanism 7, observation mechanism 8, connecting column 9, clearance hole 10, slider 11, connecting pin 12, wedge block 13, sealing strip 14, mounting hole 15, transparent film 16, scale 17.

[0022] The following specific implementation manner will be further described in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0023] In the following, various specific details are set forth in order to provide a thorough understanding of the concepts underlying the described embodiments. However, it will be apparent to those skilled in the art that the described embodiments may be practiced without some or all of these specific details. In other cases, well-known processing steps are not specifically described.

[0024] Example 1

[0025] like Figure 1 As shown, a convenient blocking biopsy needle comprises a guide needle 1, a connecting mechanism 2, a mounting plate 3, a cavity 4, a moving mechanism 5, a spring 6, a blocking mechanism 7, an observation mechanism 8, and a scale 9. The right side sealing fixed sleeve of the guide needle 1 is provided with a connecting mechanism 2, and the right side fixed sleeve of the outside of the guide needle 1 is provided with a mounting plate 3. The cross-section of the mounting plate 3 is circular, and the upper and lower ends of the mounting plate 3 are integrally provided with cavities 4. The inside of the cavity 4 is slidably provided with a moving mechanism 5, and the moving mechanism 5 sequentially penetrates the mounting plate 3 and the guide needle 1. The moving mechanism 5 is made of rubber, and a spring 6 is fixedly provided on the outside of the moving mechanism 5, and the other end of the spring 6 is fixedly connected to the mounting plate 3. A blocking mechanism 7 is fixedly provided on the inside of the moving mechanism 5, and observation mechanisms 8 are integrally provided on the upper and lower ends of the right side of the mounting plate 3, and a scale 17 is integrally provided on the outside of the guide needle 1.

[0026] The convenient blocking biopsy needle is that the medical staff holds the connecting mechanism 2 to insert the guide needle 1 into the treatment site of the patient, and then inserts the biopsy puncture needle of the prior art into the guide needle 1 through the connecting mechanism 2. At this time, the puncture needle exerts an extrusion force on the blocking mechanism 7, so that the blocking mechanism 7 drives the moving mechanism 5 to be in a state of moving in opposite directions, that is, moving the blocking mechanism 7 to the mounting plate 3. The medical staff continues to push the puncture needle to move the puncture needle out of the guide needle 1, that is, moving the puncture needle to the treatment site of the patient, so that the medical staff can use the biopsy puncture needle inserted into the patient's body accordingly. When the puncture needle is used up, the medical staff takes the puncture needle out of the patient's body. At this time, the extrusion force of the puncture needle on the blocking mechanism 7 is eliminated, and through the action of the rebound force of the moving mechanism 5, the two blocking mechanisms 7 move towards each other, that is, the two blocking mechanisms 7 fit closely, so as to seal the inside of the guide needle 1 to prevent the blood in the patient's body from being discharged to the outside through the guide needle 1. In addition, medical personnel can use the observation mechanism 8 to check the status of the occluding mechanism 7 after it is reset.

[0027] Example 2

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, a convenient blocking biopsy needle comprises a guide needle 1, a connecting mechanism 2, a mounting plate 3, a cavity 4, a moving mechanism 5, a spring 6, a blocking mechanism 7, an observation mechanism 8, and a scale 9. The right sealing fixed sleeve of the guide needle 1 is provided with a connecting mechanism 2, and the right fixing sleeve of the outside of the guide needle 1 is provided with a mounting plate 3. The cross section of the mounting plate 3 is circular, and the upper and lower ends of the mounting plate 3 are integrally provided with cavities 4, and the inside of the cavity 4 is slidably provided with a moving mechanism 5, and the moving mechanism 5 sequentially penetrates the mounting plate 3 and the guide needle 1, and the moving mechanism 5 is made of rubber material, and a spring 6 is fixedly provided on the outside of the moving mechanism 5, and the other end of the spring 6 is fixedly connected to the mounting plate 3, and a blocking mechanism 7 is fixedly provided on the inside of the moving mechanism 5, and the upper and lower ends of the right side of the mounting plate 3 are integrally provided with observation mechanisms 8, and the outside of the guide needle 1 is integrally provided with a scale 17, and the connecting mechanism 2 is composed of a connecting column 9 and a clearance hole 10. The guide needle 1 The right sealing fixing sleeve is provided with a connecting column 9, and a clearance hole 10 is integrally provided inside the connecting column 9, and the clearance hole 10 is a circular through hole. The moving mechanism 5 is composed of a slider 11 and a connecting pin 12. A slider 11 is slidably provided inside the cavity 4, and the slider 11 is made of rubber, and the slider 11 is fixedly connected to the spring 6. A connecting pin 12 is fixedly provided on the inner side of the slider 11, and the connecting pin 12 slides through the mounting plate 3, and the connecting pin 12 slides through the guide pin 1. The blocking mechanism 7 is composed of a wedge block 13 and a sealing strip 14. A wedge block 13 is fixedly provided on the inner side of the connecting pin 12, and a sealing strip 14 is fixedly provided on the left side of the outer wall of the wedge block 13 by adhesive. The observation mechanism 8 is composed of a mounting hole 15 and a transparent film 16. The mounting holes 15 are integrally provided at the upper and lower ends on the right side of the mounting plate 3, and the mounting holes 15 are through holes. A transparent film 16 is fixedly provided inside the mounting hole 15 by adhesive sealing.

[0029] When using the convenient occluding biopsy needle, the medical staff first holds the connecting column 9, and then inserts the guide needle 1 into the patient's treatment site. With the guidance of the scale 17, the medical staff can control the depth of the guide needle 1 inserted into the patient's body. The medical staff then inserts the biopsy puncture needle of the prior art into the guide needle 1 through the yield hole 10. At this time, the puncture needle exerts an extrusion force on the wedge block 13. The two wedge blocks 13 drive the corresponding connecting pins 12 together with the slider 11 to move in opposite directions, that is, to move the wedge block 13 into the cavity 4. At the same time, the spring 6 is deformed, and the medical staff continues to push the puncture needle to move the puncture needle out of the guide needle 1, that is, to move the puncture needle to the patient's treatment site, so that the medical staff can insert the biopsy puncture needle into the patient. The biopsy puncture needle in the patient's body is used accordingly. When the puncture needle is used, the medical staff takes the puncture needle out of the patient's body. At this time, the squeezing force of the puncture needle on the wedge block 13 is eliminated, and the rebound force of the spring 6 causes the two wedge blocks 13 to drive the connecting pin 12 together with the slider 11 to move toward each other, that is, the two wedge blocks 13 are tightly fitted, so as to seal the inside of the guide needle 1 to prevent the blood in the patient's body from being discharged to the outside through the guide needle 1. The sealing strip 14 is to ensure the tight sealing of the two wedge blocks 13. In addition, the medical staff can check the reset state of the slider 11 through the transparent film 16 at the mounting hole 15 to know the degree of tight fit of the wedge block 13.

Claims

1. Convenient occluding biopsy needle, characterized by It includes a guide pin, a connecting mechanism, a mounting plate, a cavity, a moving mechanism, a spring, a blocking mechanism, an observation mechanism, and a scale. The sealing fixing sleeve on the right side of the guide pin is provided with a connecting mechanism, the fixing sleeve on the right side of the guide pin is provided with a mounting plate, the mounting plate has a circular cross-section, cavities are integrally provided at the upper and lower ends of the mounting plate, a moving mechanism is slidably provided inside the cavity, the moving mechanism sequentially passes through the mounting plate and the guide pin, the moving mechanism is made of rubber, a spring is fixedly provided on the outside of the moving mechanism, the other end of the spring is fixedly connected to the mounting plate, a blocking mechanism is fixedly provided on the inside of the moving mechanism, an observation mechanism is integrally provided at the upper and lower ends of the right side of the mounting plate, and a scale is integrally provided on the outside of the guide pin; The moving mechanism is composed of a slider and a connecting pin; The slider is fixedly connected to the spring; a connecting pin is fixedly arranged on the inner side of the slider, the connecting pin slides through the mounting plate, and the connecting pin slides through the guide needle; the guide needle is used to guide the puncture needle into the patient's body; The blocking mechanism is composed of a wedge block and a sealing strip; The observation mechanism is used to check the state of the blocking mechanism after it is reset; the observation mechanism consists of a mounting hole and a transparent film; the mounting holes are integrally provided at the upper and lower ends of the right side of the mounting plate, the mounting holes are through holes, and a transparent film is fixedly provided inside the mounting holes with adhesive sealing.

2. The convenient occlusion biopsy needle according to claim 1, characterized in that The connecting mechanism is composed of a connecting column and a clearance hole.

3. The convenient occlusion biopsy needle according to claim 2, characterized in that The sealing fixing sleeve on the right side of the guide needle is provided with a connecting column, and a clearance hole is integrally provided inside the connecting column, and the clearance hole is a circular through hole.

4. The convenient occlusion biopsy needle according to claim 1, characterized in that A wedge block is fixedly arranged on the inner side of the connecting pin, and a sealing strip is fixedly arranged on the left side of the outer wall of the wedge block by adhesive.

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