CN218684620U

CN218684620U - Novel percutaneous kidney puncture needle

Info

Publication number: CN218684620U
Application number: CN202222062954.8U
Authority: CN
Inventors: 邓君; 刘霄强; 傅斌
Original assignee: First Affiliated Hospital of Nanchang University
Current assignee: First Affiliated Hospital of Nanchang University
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2023-03-24
Anticipated expiration: 2032-08-05

Abstract

The utility model relates to the field of medical equipment, especially, relate to a novel percutaneous kidney pjncture needle. The puncture needle comprises a puncture inner needle and a puncture outer needle, wherein a completely penetrated blood seepage channel is arranged in the center of the puncture outer needle along the length direction of the puncture outer needle, two pipe orifices of the blood seepage channel are respectively a puncture opening and a puncture opening, the puncture inner needle penetrates through the puncture opening, and the tip end of the end part of the puncture inner needle extends out of the puncture opening and is fixed; the outer puncture needle is made of transparent rubber, and the inner puncture needle is made of metal; the outer puncture needle provided with the inner puncture needle is pulled out to observe the blood seepage channel after penetrating into a set position. The puncture inner needle and the puncture outer needle are fixed under the action of the outer eaves and the clamping grooves, and after a human body is punctured, the outer needle is taken out to observe whether the blood vessel is punctured, so that the risk of hemorrhage during operation is reduced.

Description

Novel percutaneous kidney puncture needle

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a novel percutaneous kidney pjncture needle.

Background

Refers to stones occurring in the calyx of the kidney, the renal pelvis, and the junction between the renal pelvis and the ureter. The kidney is the main part of the urinary system for forming calculus, calculus of any other part can be primarily generated in the kidney, ureteral calculus almost comes from the kidney, and the kidney is easier to directly damage the kidney than calculus of any other part, so early diagnosis and treatment are very important. The kidney stone is a common and frequently encountered disease of the urinary system, and one of every 20 people may suffer from the kidney stone.

Therefore, the kidney stone removal operation is a common operation in the clinical field of urology, and the currently adopted operation method is (see fig. 1) to try to puncture by using a puncture needle, then expand a channel (taking out the puncture needle to place a reaming sleeve, then inserting a surgical channel tube along the reaming sleeve for secondary expansion, simultaneously keeping the surgical channel tube still, taking out the reaming tube, sequentially putting surgical equipment along the surgical channel tube according to the surgical process), putting a ureteroscope and a nephroscope into a laser optical fiber, and then crushing and flushing out the stone under direct vision, which is the current advanced minimally invasive kidney stone removal operation; however, in order to enable the visual tube core, the laser fiber to be placed and the subsequent broken stone to be taken out, the aperture of the surgical opening is still larger than that of the kidney, the blood vessels on the kidney are abundant, the risk of puncturing the blood vessels can occur in the process of puncture by the puncture needle, however, the cross section of the puncture needle is very small, so that the risk of massive bleeding can not be caused by only puncturing the blood vessels on the kidney by the puncture needle, however, after puncture by the puncture needle, hole expansion can be performed, and if the blood vessels are punctured by the last puncture, the blood vessels punctured by the last puncture are further torn, so that the risk of massive bleeding can be caused greatly. Meanwhile, the prior patent is searched, and the application numbers are searched as follows: 2020211471729, entitled "percutaneous kidney puncture needle", its design principle is to design a needle core and an outer sheath which are inserted integrally, the end of the outer sheath is provided with an indication card, the color displayed when the needle core is pulled out is used to judge whether the blood vessel is punctured, but it has the defect that we need B ultrasonic wave to guide in the puncture process, so there is no possibility of puncturing other organs, and the puncture needs to pass through the skin and the kidney to reach the calculus area, so there is little blood at the end of the puncture needle to judge whether the blood is blood of capillary vessel of skin or kidney, and it has only an end opening, and the end will finally puncture the calculus, so even if the larger opening is stuck by the outer sheath when puncturing, it cannot judge whether the blood is flowing, so there is a defect in the actual operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, adapt to the practical needs, and provide a novel percutaneous kidney puncture needle, which comprises a puncture inner needle 1 and a puncture outer needle 2, wherein the center of the puncture outer needle is provided with a completely penetrated blood seepage channel 21 along the length direction, two orifices of the blood seepage channel 21 are respectively a puncture hole 211 and a puncture hole 212, the puncture inner needle penetrates from the puncture hole 212, and the tip end of the puncture inner needle extends out of the puncture hole and is fixed; the outer puncture needle is made of transparent rubber, and the inner puncture needle is made of metal; the outer puncture needle provided with the inner puncture needle is pulled out to observe the blood seepage channel after penetrating into a set position.

A plurality of groups of blood seepage holes 22 are circularly arranged in the whole row of the puncture outer needle close to the puncture hole.

The outer ring of the puncture outer needle is provided with a puncture scale 23.

The end part of the penetration opening of the outer puncture needle is provided with an outer needle holding head 24, and the center of the outer puncture needle is provided with a communicating cavity which is communicated with the outer puncture needle and has the same diameter.

One side of the puncture inner needle far away from the tip end is provided with an inner needle holding head 11 which is in a two-stage cylindrical shape, and the diameter of a first-stage holding head 111 close to one side of the inner needle is smaller than that of a second-stage holding head 112.

A fixed clamping sleeve 25 is arranged at the end part of the penetrating port of the outer puncture needle, and the first-stage handheld head of the inner needle is inserted into the fixed clamping sleeve and is attached to the inner wall of the fixed clamping sleeve; an outer brim 251 is arranged on the outer ring of the opening of the fixed clamping sleeve, a clamping groove 12 is arranged on the side, close to the first-stage handheld head 111, of the second-stage handheld head 112, and the outer brim is clamped into the clamping groove.

The outer brim is in interference fit with the clamping groove; the outer ring of one side of the outer eave close to the second-stage handheld head is an arc surface.

The beneficial effects of the utility model reside in that:

the inner puncture needle and the outer puncture needle are fixed under the action of the outer eaves and the clamping grooves, and after a human body is punctured, the outer puncture needle is taken out to observe whether the blood vessel is punctured, so that the risk of hemorrhage of the operation is reduced.

Drawings

The present invention will be further described with reference to the accompanying drawings and embodiments.

FIG. 1 is a schematic view of a prior art insertion needle and reaming;

FIG. 2 is an overall schematic view of the present disclosure;

FIG. 3 is a schematic view of the inner puncture needle and the outer puncture needle disassembled;

fig. 4 is a sectional view.

Detailed Description

The invention is further described below with reference to the following figures and examples:

see fig. 1-4.

The utility model discloses a novel percutaneous kidney puncture needle, which comprises a puncture inner needle 1 and a puncture outer needle 2, wherein the center of the puncture outer needle is provided with a completely penetrated blood seepage channel 21 along the length direction, two pipe orifices of the blood seepage channel 21 are respectively a puncture hole 211 and a puncture hole 212, the puncture inner needle penetrates from the puncture hole 212, and the tip end of the end part of the puncture inner needle extends out of the puncture hole and is fixed; the outer puncture needle is made of transparent rubber, and the inner puncture needle is made of metal; the outer puncture needle with the inner puncture needle is pulled out to observe the blood seepage channel after penetrating into the set position.

The oozing of the puncture port 211 alone cannot be completely and clearly observed at different positions of the whole puncture part, so that a plurality of groups of oozing holes 22 are circularly arranged in a row at the position of the puncture outer needle close to the puncture port, and when the puncture outer needle is completely punctured, the puncture port 211 is punctured, and even if the puncture port 211 is punctured all around, the blood does not necessarily flow back to the puncture port 211. The plurality of groups of the blood seepage holes 22 at different positions can flow into the blood seepage channel 21 along the holes when blood seeps after being punctured at each position. The position of the bleeding hole 22 is designed to be right in the area of the kidney which can be completely penetrated into the calculus, so that bleeding at any position of the kidney penetration can be quickly fed back to the end when the inner needle is pulled out. Meanwhile, in order to visually and clearly describe the device, the overall structure looks thick, and the puncture inner needle 1 is actually the same as a common puncture needle in thickness.

And the outer ring of the puncture outer needle is provided with a puncture scale 23.

The method comprises the following specific operations:

firstly, the puncture inner needle 1 is inserted into the puncture outer needle 2 for fixation, then the puncture outer needle 2 is held by a hand to puncture the whole body from the outside of a human body, after the puncture inner needle 1 is slowly taken out, if the blood seepage is found in a transparent channel of the puncture outer needle 2 in the process, the whole puncture outer needle 2 is taken out, and if the blood seepage does not exist, the next puncture point is searched, and the reaming operation can be carried out by the conventional method (as shown in figure 1).

The above mentioned is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings or the direct or indirect application in the related technical field are included in the patent protection scope of the present invention.

Claims

1. A novel percutaneous kidney puncture needle is characterized in that: the puncture needle comprises a puncture inner needle (1) and a puncture outer needle (2), wherein a completely-penetrated blood seepage channel (21) is arranged in the center of the puncture outer needle along the length direction of the puncture outer needle, two pipe orifices of the blood seepage channel (21) are respectively a puncture opening (211) and a puncture opening (212), the puncture inner needle penetrates from the puncture opening (212), and the tip of the end part of the puncture inner needle extends out of the puncture opening and is fixed; the outer puncture needle is made of transparent rubber, and the inner puncture needle is made of metal; the outer puncture needle provided with the inner puncture needle is pulled out to observe the blood seepage channel after penetrating into a set position.

2. A novel percutaneous renal puncture needle according to claim 1, wherein: the puncture outer needle is provided with a plurality of groups of blood seepage holes (22) in a circular array close to the puncture opening.

3. A novel percutaneous nephrolithotomy needle, in accordance with claim 2, characterized in that: and the outer ring of the outer puncture needle is provided with puncture scales (23).

4. A novel percutaneous renal puncture needle according to claim 2, wherein: the end part of the penetration opening of the outer puncture needle is provided with an outer needle holding head (24), and the center of the outer needle is provided with a communicating cavity which is communicated with the outer puncture needle and has the same diameter.

5. A novel percutaneous renal puncture needle according to claim 2, wherein: one side of the puncture inner needle far away from the tip end is provided with an inner needle handheld head (11), the inner needle handheld head is in a two-stage cylindrical shape, and the diameter of a first-stage handheld head (111) close to one side of the inner needle is smaller than that of a second-stage handheld head (112).

6. The novel percutaneous renal puncture needle according to claim 5, wherein: a fixed clamping sleeve (25) is arranged at the end part of the penetrating port of the outer puncture needle, and the first-stage handheld head of the inner needle is inserted into the fixed clamping sleeve and is attached to the inner wall of the fixed clamping sleeve; the mouth portion outer ring of fixed cutting ferrule is provided with outer eaves (251), second level handheld head (112) are provided with draw-in groove (12) by one-level handheld head (111) side, outer eaves card is gone into in the draw-in groove.

7. The novel percutaneous renal puncture needle according to claim 6, wherein: the outer brim is in interference fit with the clamping groove; the outer ring of one side of the outer eave close to the second-stage handheld head is an arc surface.