CN217447962U - Kit for performing renal biopsy and nephrostomy simultaneously - Google Patents
Kit for performing renal biopsy and nephrostomy simultaneously Download PDFInfo
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- CN217447962U CN217447962U CN202221388728.2U CN202221388728U CN217447962U CN 217447962 U CN217447962 U CN 217447962U CN 202221388728 U CN202221388728 U CN 202221388728U CN 217447962 U CN217447962 U CN 217447962U
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Abstract
The utility model discloses a set for going on kidney aspiration biopsy art and kidney fistulization art simultaneously belongs to medical instrument technical field, including puncture needle core (1) and puncture needle tubing (2), be provided with cutting accommodating groove (3) in the position that is close to the front end of puncture needle core (1), cutting accommodating groove edge is sharp shape, the rear end of puncture needle core (1) is provided with nook closing part (4), in the end fixedly connected with nook closing part control lever (5) of nook closing part (4), the rear end of puncture needle tubing (2) is provided with location matching portion (6) with nook closing part (4) matching; adopt the utility model discloses an external member can realize getting the kidney tissue when the kidney fistulization is relieved and is blocked, has avoided going kidney puncture biopsy once more, has avoided the patient to bear misery and risk many times repeatedly, has obviously alleviateed patient's economic burden, saves medical staff's time, manpower, has also saved medical resource.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a kit that is used for going kidney aspiration biopsy art and nephrostomy art simultaneously.
Background
Obstructive renal disease is a common cause of renal failure. The existing research shows that in many causes of chronic kidney disease, obstructive nephropathy is raised to the 3 rd position, so that the reason of kidney obstruction is clarified, the kidney obstruction is timely relieved, and the protection of residual kidney function is particularly important. Clinically, various acute diseases can cause obstructive renal injury, and not only can obstruction be relieved in a short time, but also renal biopsy is needed to determine the pathological type of renal injury, and further determine the cause of renal obstruction.
At present, percutaneous nephrostomy can only relieve renal obstruction, and if the pathological type and the etiology of renal injury need to be known, renal biopsy needs to be additionally performed to obtain renal tissue. According to the current operation mode, the nephrostomy and the renal biopsy need to be performed two times of invasive operations, which brings great pain to patients and wastes medical resources.
Specifically, the nephrostomy set currently in use is composed of a drainage tube, a puncture needle (including a needle tube and various types of needle cores), a guide wire and a dilator.
The current ultrasound-guided renal biopsy is to use a disposable renal biopsy needle to puncture the kidney to obtain renal tissue under color ultrasound positioning, and perform subsequent pathological staining, which is the gold standard for diagnosing renal diseases.
Both nephrostomy and nephrolithotomy are invasive operations, require cooperation of color ultrasonography doctors and nephrology department/urology surgeons to complete, have bleeding risks, and separate operations not only increase pain of patients, but also increase hospitalization cost and labor loss.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a kit that is used for going simultaneously kidney aspiration biopsy art and nephrostomy art to solve above-mentioned problem.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a kit for performing renal biopsy and nephrostomy simultaneously comprises a puncture needle core and a puncture needle tube, wherein a cutting accommodating groove is formed in the position, close to the front end, of the puncture needle core, the edge of the cutting accommodating groove is sharp, a needle core positioning part is arranged at the rear end of the puncture needle core, a needle core control rod is fixedly connected to the tail end of the needle core positioning part, and a positioning matching part matched with the needle core positioning part is arranged at the rear end of the puncture needle tube; the outer diameter of the tail end of the stylet positioning part is larger than that of the puncture stylet, and the front end of the stylet positioning part is connected with the tail end of the puncture stylet; the longitudinal section of the positioning matching part is also isosceles trapezoid, namely the positioning matching part is a cylinder with the inner diameter gradually narrowed from the tail end, the upper bottom of the trapezoid is connected with the tail end of the puncture needle tube, the length of the lower bottom of the longitudinal section of the positioning matching part is greater than that of the lower bottom of the longitudinal section of the needle core positioning part, and the length of the upper bottom of the longitudinal section of the positioning matching part is smaller than that of the upper bottom of the longitudinal section of the needle core positioning part.
The utility model discloses on the basis of traditional nephrostomy external member, at first improve the pjncture needle of nephrostomy external member, make its needle point portion improve for can realizing cutting and holding the recess that holds of organizational function of kidney puncture biopsy needle point, for avoiding unable assurance puncture kidney tissue length, still carried out the adaptability to the rear end of nook closing member and needle tubing and improved. Specifically, the method comprises the following steps: when the puncture needle core is clinically used for puncture fistulization, the puncture needle core is positioned in the puncture needle tube, when a proper position is reached, the pillow core control rod is pushed forwards to enable the puncture needle core to penetrate out of the front end of the puncture needle tube (in order to control the length of the puncture needle core penetrating out of the front end of the puncture needle tube, the utility model discloses a matching improvement of the puncture needle tube and the puncture needle core structure, after the puncture needle core advances to a certain position, the pillow core can not continue to advance due to the fact that the outer diameter of the tail end of the needle core positioning part is larger than the inner diameter of the positioning matching part; continuing forward, the sharp cutting through the front end holds recess puncture kidney tissue to make the kidney tissue of cutting hold in this recess, it is intraductal to wear out the nook closing member to pjncture needle to the puncture needle to withdraw back through the pillow control lever after the puncture, kidney tissue and puncture nook closing member all are located the pjncture needle, continue to puncture to fistulization suitable position, extract the puncture nook closing member through the pillow control lever, can take out the puncture tissue, acquire kidney tissue and carry out follow-up inspection, the puncture needle introduces the needle tubing seal wire and carries out follow-up puncture drainage operation.
As a preferred technical scheme: the longitudinal section of the needle core positioning part is also an isosceles trapezoid, and the upper bottom of the isosceles trapezoid is connected with the tail end of the puncture needle core.
As a further preferable technical scheme: the length of the upper bottom of the longitudinal section of the stylet positioning part is equal to the diameter of the puncture stylet. Of course, the length of the upper bottom of the longitudinal section of the needle core positioning part can be smaller than or larger than the diameter of the puncture needle core, and the length is equal, so that the puncture needle core positioning part and the puncture needle core positioning part are convenient to process and integrally form.
As a preferred technical scheme: the part of the stylet positioning part contacting with the positioning matching part after entering the positioning matching part is made of elastic material, and a clamping groove is arranged at the position of the inner side of the positioning matching part contacting with the stylet positioning part.
As a preferred technical scheme: the outer diameter of the needle core control rod is smaller than or equal to the outer diameter of the puncture needle core. The needle core control rod is more convenient to operate.
As a preferred technical scheme: and the position of the stylet control rod close to the tail end is provided with an anti-skid convex line. More convenient for stably operating the extraction of the needle core control rod.
Compared with the prior art, the utility model has the advantages of: adopt the utility model discloses an external member can realize getting the kidney tissue when the kidney fistulization is relieved and is blocked, has avoided going kidney puncture biopsy once more, has avoided the patient to bear misery and risk many times repeatedly, has obviously alleviateed patient's economic burden, saves medical staff's time, manpower, has also saved medical resource.
Drawings
FIG. 1 is a view showing a configuration of a puncture needle core in embodiment 1 of the present invention;
FIG. 2 is a structural view of a puncture needle tube according to embodiment 1 of the present invention;
FIG. 3 is an initial state diagram of the combination of the puncture needle core and the puncture needle tube according to embodiment 1 of the present invention;
FIG. 4 is a view showing a state in which the puncture needle core and the puncture needle tube of embodiment 1 of the present invention are used in combination;
fig. 5 is a view showing a state of the puncture needle core and the puncture needle tube of embodiment 2 of the present invention in combination.
In the figure: 1. a puncture needle core; 2. a puncture needle tube; 3. cutting the accommodating groove; 4. a stylet positioning portion; 5. a stylet control rod; 6. a positioning matching section; 7. a clamping groove.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1:
a set for performing renal biopsy and nephrostomy simultaneously comprises a puncture needle core 1 and a puncture needle tube 2, wherein the structure diagram of the puncture needle core 1 is shown in figure 1, the structure diagram of the puncture needle tube 2 is shown in figure 2, a cutting accommodating groove 3 is arranged at the position, close to the front end, of the puncture needle core 1, the edge of the cutting accommodating groove is sharp, a needle core positioning part 4 is arranged at the rear end of the puncture needle core 1, a needle core control rod 5 is fixedly connected to the tail end of the needle core positioning part 4, and a positioning matching part 6 matched with the needle core positioning part 4 is arranged at the rear end of the puncture needle tube 2; wherein, the longitudinal section of the stylet positioning part 4 is isosceles trapezoid, the upper bottom of which is connected with the tail end of the puncture stylet 1; the longitudinal section of the positioning matching part 6 is also an isosceles trapezoid, the upper bottom of the trapezoid is connected with the tail end of the puncture needle tube 2, the length of the lower bottom of the longitudinal section of the positioning matching part 6 is greater than that of the lower bottom of the longitudinal section of the stylet positioning part 4, and the length of the upper bottom of the longitudinal section of the positioning matching part 6 is less than that of the upper bottom of the longitudinal section of the stylet positioning part 4;
in this embodiment: the length of the upper bottom of the longitudinal section of the stylet positioning part 4 is equal to the diameter of the puncture stylet 1.
In this embodiment: the outer diameter of the stylet control rod 5 is smaller than or equal to the outer diameter of the puncture stylet.
It should be noted that: the width of the positioning matching part 6 has no special requirement, because the part does not enter tissues, the part only needs to be matched with the size of the stylet positioning part 4, the length of the positioning matching part 6 only needs to be convenient for manual operation, and the length of the stylet control rod 5 meets the length which is convenient for pushing and pulling by the left hand holding the puncture needle tube 2 and the right hand; the length of the needle core control rod 5 is convenient to operate, and the puncture needle core 1 does not need to be pulled out and then taken out, and the tissue can be taken out after the needle is pulled out.
In use, as shown in fig. 3, a in the figure is the length of the puncture needle core 1 extending out of the puncture needle tube 2, and the length is determined by the relative size of the inner diameter of the positioning matching part 6 of the puncture needle tube 2 and the outer diameter of the tail end of the needle core positioning part 4 of the puncture needle core 1, namely, the larger the outer diameter of the tail end of the needle core positioning part 4 relative to the inner diameter of the positioning matching part 6, the smaller the length of a is, and vice versa; the tissue length required by renal puncture is generally 1.0-2.0cm, the conventional length is about 1.2cm, and the requirement of the length is met by adjusting the relative size of the inner diameter of the positioning matching part 6 and the outer diameter of the tail end of the stylet positioning part 4;
the operation process comprises the following steps:
1. the patient is in a prone position, the approximate puncture depth and the needle inserting position are determined under color ultrasonography, the puncture point is positioned again after the conventional disinfection and tissue spreading, and the puncture needle tube (shown in figure 3) is punctured after local anesthesia to be close to the kidney epitoma;
2. order the patient to hold his breath, continue the needle insertion with the color ultrasound, after the puncture needle tube reaches the renal capsule, fix the renal fistulization puncture needle, then push the needle core forward through the needle core control rod 5 to make the needle core continue the needle insertion 1-2cm to the required puncture site (figure 4), quickly withdraw the puncture needle core 1 through the needle core control rod 5 to return to the puncture needle tube 2, continue to advance to the required renal fistulization site, further remove the puncture needle core, introduce the guide wire and the dilator, insert the drainage tube, and fix the drainage tube, complete the renal fistulization operation, and relieve the renal obstruction. The needle core of the extracted puncture needle contains kidney tissues, if the length of the needle core is 10-15mm, glomeruli (red dots under light) are densely distributed on the needle core to form a qualified sample, and if the kidney tissues are unqualified, the needle core can be extracted and then punctured for 1 time, and then a guide wire and a dilator are introduced.
3. And (5) leaving a sample and sending the sample to a light examination mirror and an electron microscope.
4. Observing whether the patient has unobstructed drainage and perirenal hematoma, disinfecting, covering dressing, transferring the patient and monitoring the vital signs of the patient.
The utility model has the advantages that:
1. the renal biopsy and the renal fistulization can be completed at one time, so that the problem of renal obstruction is solved, the renal function and the renal structure are protected, and renal tissues are obtained for determining the reason of renal diseases and guiding subsequent treatment;
2. the nephrostomy external member has mature technology, the needle core of the nephrostomy puncture needle is improved according to the puncture biopsy needle, the technical difficulty is small, and the feasibility is strong;
3. if successful, a variety of tissue fistulization kits, including gastrostomy kits, etc., can be made in accordance with the above-described manner.
Example 2
Compared with the embodiment 1, in the embodiment, after the stylet positioning portion 4 enters the positioning matching portion 6, the part contacting with the positioning matching portion 6 is made of an elastic material such as a silica gel material, and the position, contacting with the stylet positioning portion 4, on the inner side of the positioning matching portion 6 is provided with the clamping groove 7, as shown in fig. 5, with such an arrangement, after the puncture stylet 1 reaches a predetermined position, the stylet positioning portion 4 can be just clamped in the clamping groove 7, so that the puncture stylet 1 can be prevented from backing due to resistance of tissues when sampling; because the puncture needle core is made of elastic materials, when the puncture needle core needs to be taken out, the outward retroversion force can enable the part made of the elastic materials to generate deformation, and therefore the puncture needle core is easily taken out.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A kit for performing a renal biopsy procedure and a nephrostomy procedure simultaneously, comprising a puncture needle core (1) and a puncture needle cannula (2), characterized in that: a cutting accommodating groove (3) is formed in the position, close to the front end, of the puncture needle core (1), the edge of the cutting accommodating groove is sharp, a needle core positioning part (4) is arranged at the rear end of the puncture needle core (1), a needle core control rod (5) is fixedly connected to the tail end of the needle core positioning part (4), and a positioning matching part (6) matched with the needle core positioning part (4) is arranged at the rear end of the puncture needle tube (2); the outer diameter of the tail end of the stylet positioning part (4) is larger than that of the puncture stylet (1), and the front end of the stylet positioning part is connected with the tail end of the puncture stylet (1); the longitudinal section of the positioning matching part (6) is an isosceles trapezoid, the upper bottom of the trapezoid is connected with the tail end of the puncture needle tube (2), the length of the lower bottom of the longitudinal section of the positioning matching part (6) is greater than that of the lower bottom of the longitudinal section of the needle core positioning part (4), and the length of the upper bottom of the longitudinal section of the positioning matching part (6) is less than that of the upper bottom of the longitudinal section of the needle core positioning part (4).
2. The kit for performing simultaneous nephrolithotomy biopsy and nephrostomy according to claim 1, characterized in that: the longitudinal section of the stylet positioning part (4) is also isosceles trapezoid, and the upper bottom of the isosceles trapezoid is connected with the tail end of the puncture stylet (1).
3. The kit for performing simultaneous nephrolithotomy biopsy and nephrostomy according to claim 2, characterized in that: the length of the upper bottom of the longitudinal section of the stylet positioning part (4) is equal to the diameter of the puncture stylet (1).
4. The kit for simultaneous nephrolithotomy and nephrostomy of claim 1, characterized in that: the part of the stylet positioning part (4) contacting with the positioning matching part (6) after entering the positioning matching part (6) is made of elastic material, and a clamping groove (7) is arranged at the position of the inner side of the positioning matching part (6) contacting with the stylet positioning part (4).
5. The kit for performing simultaneous nephrolithotomy biopsy and nephrostomy according to claim 1, characterized in that: the outer diameter of the stylet control rod (5) is less than or equal to the outer diameter of the puncture stylet.
6. The kit for simultaneous nephrolithotomy and nephrostomy of claim 1, characterized in that: the position of the stylet control rod (5) close to the tail end is provided with an anti-skid convex line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221388728.2U CN217447962U (en) | 2022-06-06 | 2022-06-06 | Kit for performing renal biopsy and nephrostomy simultaneously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221388728.2U CN217447962U (en) | 2022-06-06 | 2022-06-06 | Kit for performing renal biopsy and nephrostomy simultaneously |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217447962U true CN217447962U (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221388728.2U Active CN217447962U (en) | 2022-06-06 | 2022-06-06 | Kit for performing renal biopsy and nephrostomy simultaneously |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217447962U (en) |
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2022
- 2022-06-06 CN CN202221388728.2U patent/CN217447962U/en active Active
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