CN214208452U

CN214208452U - Improved apparatus of percutaneous vertebroplasty anesthesia injection and puncture tool combination

Info

Publication number: CN214208452U
Application number: CN202022033665.6U
Authority: CN
Inventors: 陈星�
Original assignee: First Peoples Hospital of Huzhou
Current assignee: CHANGXING COUNTY PEOPLE'S Hospital
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-09-17
Anticipated expiration: 2030-09-16

Abstract

The utility model provides an improved apparatus of percutaneous vertebroplasty anesthesia injection and puncture tool combination, which belongs to the field of medical apparatus. It includes syringe needle and puncture subassembly, the puncture subassembly in be equipped with syringe needle looks adaptation and run through the first chase of puncture subassembly, syringe needle and first chase sliding connection, the syringe needle in be equipped with the second chase, the second chase sliding connection have the guide pin. Its advantage lies in through this mode, regard as the location guide pin to the syringe needle, and the perspective position is good, directly wears into along the syringe needle to the puncture subassembly together, reduces the puncture damage, reduces soft tissue damage.

Description

Improved apparatus of percutaneous vertebroplasty anesthesia injection and puncture tool combination

Technical Field

The utility model belongs to the field of medical equipment, especially, relate to an improvement apparatus of percutaneous vertebroplasty anesthesia injection and puncture instrument combination.

Background

Currently, percutaneous vertebroplasty is widely used in clinical procedures for the treatment of osteoporotic vertebral fractures. In the original technology, in the operation process, the conventional local anesthesia is firstly carried out, then the needle feeding point of the pedicle of vertebral arch needs to be punctured and positioned in a perspective mode, the conventional puncturing tool is used for puncturing and repeatedly perspective positioning points and angles, in the process, the pedicle of vertebral arch is punctured, then the pedicle of vertebral arch is positioned in a perspective mode through rays, the position is not right sometimes, the repeated puncturing damage is caused, the damage of multiple times of puncturing is caused, the damage is caused to peripheral blood vessels and tissues, and the patient can suffer from great pain in the repeated puncturing process.

For example, chinese patent literature discloses a percutaneous puncture cannula device for vertebral fracture [ patent application No.: CN201520410482.8], which consists of a puncture cannula and a needle core; the puncture cannula consists of a hollow cannula and a base, the middle part of one side of the base is communicated with the hollow cannula, the other side of the base is provided with an opening, and one side of the opening is provided with a groove; the front part of the needle core is a puncture needle, the tail end of the needle core is a handle, and the inner side of the handle is provided with a bulge. The outer diameter of the puncture needle is smaller than the inner diameter of the hollow sleeve; when the puncture needle is used, the puncture needle penetrates into the hollow sleeve, and the protrusion on the handle is embedded in the groove on the puncture sleeve base. The front end of the puncture needle is a slope, and after the puncture needle penetrates into the hollow sleeve, the slope at the front end of the puncture needle extends out of the hollow sleeve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above problem, provide an improvement apparatus of percutaneous vertebroplasty anesthesia injection and puncture instrument combination.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides an improvement apparatus of percutaneous vertebroplasty anesthesia injection and puncture instrument combination, includes syringe needle and puncture subassembly, the puncture subassembly in be equipped with syringe needle looks adaptation and run through the first chase of puncture subassembly, syringe needle and first chase sliding connection, the syringe needle in be equipped with the second chase, second chase sliding connection have the guide pin.

In the above-mentioned improved apparatus of the combination of percutaneous vertebroplasty anesthetic injection and puncture tool, the length of the guide needle is longer than the length of the injection needle, and the length of the injection needle is longer than the length of the puncture assembly.

In the improved apparatus combined with the anesthesia injection and puncture tool for percutaneous vertebroplasty, the puncture assembly comprises a puncture sheath, a third tube groove is arranged in the puncture sheath, a puncture needle is slidably connected in the third tube groove, and the second tube groove is arranged in the puncture needle and penetrates through the puncture needle.

In the improved apparatus combined with the anesthesia injection and puncture tool for percutaneous vertebroplasty, the end of the puncture sheath is provided with a first positioning block, the first positioning block is provided with an inner shaft, the end of the puncture needle is provided with a second positioning block, the second positioning block is provided with an outer shaft corresponding to the inner shaft, and the inner shaft can extend into the outer shaft and is in threaded connection with the outer shaft.

In the improved apparatus combined with the anesthesia injection and puncture tool for percutaneous vertebroplasty, the first positioning block and the second positioning block are arranged in an arc shape, and the arc surface of the first positioning block far away from the puncture sheath is matched with the arc surface of the second positioning block close to the puncture needle.

In the improved apparatus combined with the anesthesia injection and puncture tool for percutaneous vertebroplasty, the first positioning block is provided with two grooves, and the two grooves are respectively located on two sides of the inner shaft.

In the above-mentioned improved apparatus of percutaneous vertebroplasty anesthesia injection and puncture instrument combination, needle end tail department be connected with the injection needle tail, injection needle tail and injection needle spiro union and be connected with the guide pin, the guide pin keep away from the tip of injection needle tail and extend the injection needle, just injection needle and guide pin keep away from the tip of injection needle tail and be most advanced.

In the improved apparatus combined with the percutaneous vertebroplasty anesthesia injection and puncture tool, the end part of the injection needle tail, which is far away from the injection needle, is screwed with an end cap, the end cap extends out of the injection needle tail, and the guide needle is connected with the injection needle tail in a sliding way and is fixedly connected with the end cap.

In the improved apparatus combined with the anesthesia injection and puncture tool for percutaneous vertebroplasty, the injection needle tail is composed of two circular truncated cones which are symmetrically arranged with each other, and the cross-sectional area of the injection needle tail is gradually enlarged from the middle to the two ends.

In the improved apparatus of the combination of the percutaneous vertebroplasty anesthesia injection and puncture tool, the outer surface of the tail of the injection needle is rough.

Compared with the prior art, the utility model has the advantages of:

1. the utility model provides a be equipped with in the puncture subassembly with syringe needle looks adaptation and run through the first chase of puncture subassembly, earlier do not extract the syringe needle after anaesthetizing, make the puncture subassembly move down make the syringe needle extend into first chase, thereby make the puncture subassembly prick in the skin on the basis of syringe needle, extract the syringe needle after that, stay the puncture subassembly internal, through this mode, fix a position with the syringe needle, the damage is less, thereby can reduce the damage that the puncture number of times reduces and cause.

2. The utility model provides a cross sectional area of injection needle tail from its middle department to both ends grow gradually, just injection needle tail surface be the rugosity, the finger can not be on the injection needle tail along its endwise slip, improve stability, and injection needle tail surface is the rugosity and has increased the frictional force of injection needle tail with the finger.

Drawings

FIG. 1 is a schematic view of the spike assembly and the connection of the spike assembly;

FIG. 2 is a schematic view of the connection of an injection needle and a lead;

FIG. 3 is a schematic view of the structure of the penetrating sheath;

FIG. 4 is a schematic view of the structure of the needle;

FIG. 5 is an expanded schematic view of FIG. 2;

figure 6 is a schematic diagram of the lead extraction of figure 2.

In the figure: the injection needle comprises an injection needle 10, a puncture component 12, a first tube groove 13, a second tube groove 14, a guide needle 15, a puncture sheath 16, a third tube groove 17, a puncture needle 18, a first positioning block 19, an inner shaft 20, a second positioning block 21, an outer shaft 22, a groove 23, an injection needle tail 24 and an end cap 25.

Detailed Description

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

The utility model relates to a puncture tool special for osteoporosis vertebral fracture percutaneous vertebroplasty.

Referring to fig. 1-6, an improved apparatus for combining an anesthesia injection and a puncture tool in percutaneous vertebroplasty comprises an injection needle 10 and a puncture assembly 12, wherein a first tube slot 13 is arranged in the puncture assembly 12, the first tube slot 13 is adapted to the injection needle 10 and penetrates through the puncture assembly 12, the injection needle 10 is slidably connected with the first tube slot 13, a second tube slot 14 is arranged in the injection needle 10, and a guide needle 15 is slidably connected in the second tube slot 14.

In the original technology, when an operation is performed, firstly, an injection is performed to perform conventional local anesthesia, a conventional puncture tool is used for puncture and repeated perspective of positioning points and angles, and in the process, a needle tube punctures the skin for multiple times, so that the injury of the multiple punctures and the injury to peripheral blood vessels and tissues are caused. In order to reduce the puncture number of times, in the utility model discloses in, advance the location, prick syringe needle 10 into in the skin, extract guide needle 15, thereby squeeze into the anesthetic through second chase 14 and carry out conventional local anesthesia, do not extract syringe needle 10 after carrying out the anesthesia earlier, move down puncture subassembly 12 and make syringe needle 10 extend into first chase 13, thereby make puncture subassembly 12 prick into in the skin on syringe needle 10's basis, extract syringe needle 10 after that, stay puncture subassembly 12 in vivo, thereby carry out subsequent treatment or inspection. Compared with the prior art, prior art punctures and perspects repeatedly sometimes, and conventional puncture head is bigger, causes the tissue damage great, and the utility model discloses fix a position with syringe needle 10, the damage is less, thereby can reduce the damage that the puncture number of times reduced and caused.

The length of the guide needle 15 is longer than that of the injection needle 10, and the length of the injection needle 10 is longer than that of the puncture assembly 12.

The utility model discloses in, the both ends of guide pin 15 extend the both ends of syringe needle 10, and one end is used for inserting in the skin, and the other end is convenient to extract guide pin 15 and still be in the state of pricking in the skin after inserting the skin.

The puncture assembly 12 comprises a puncture outer sheath 16, a third tube groove 17 is arranged in the puncture outer sheath 16, a puncture needle 18 is slidably connected in the third tube groove 17, and the second tube groove 14 is arranged in the puncture needle 18 and penetrates through the puncture needle 18.

In the utility model discloses in, when puncture subassembly 12 inserts in the skin along syringe needle 10, pjncture needle 18 wears to establish in puncture outer round pin 16, and pjncture needle 18 inserts in the skin with puncture outer round pin 16 together, extracts syringe needle 10 after that, and the outer round pin 16 of puncture that leaves and pjncture needle 18 just are the same with the puncture needle principle of using usually, extracts pjncture needle 18 to make third tube seat 17 wear empty, can carry out subsequent injection liquid this moment or take out liquid.

The end of the puncture sheath 16 is provided with a first positioning block 19, the first positioning block 19 is provided with an inner shaft 20, the end of the puncture needle 18 is provided with a second positioning block 21, the second positioning block 21 is provided with an outer shaft 22 corresponding to the inner shaft 20, and the inner shaft 20 can extend into the outer shaft 22 and is in threaded connection with the outer shaft.

In the present invention, when the puncture needle 18 and the puncture sheath 16 are inserted into the skin together, the puncture outer pin 16 and the puncture needle 18 are fixed together by screwing them together in order to reduce damage and improve accuracy, and when the puncture needle 18 is pulled out, the puncture needle 18 is rotated to pull out the puncture needle 18.

The first positioning block 19 and the second positioning block 21 are arranged in a circular arc shape, and the cambered surface of the first positioning block 19 far away from the puncture sheath 16 is matched with the cambered surface of the second positioning block 21 close to the puncture needle 18.

In the present invention, when the puncture needle 18 is screwed into the puncture sheath 16 to prepare for the puncture operation, the puncture needle 18 is screwed into the puncture sheath 16 until the cambered surface of the first positioning block 19 away from the puncture sheath 16 completely offsets the cambered surface of the second positioning block 21 close to the puncture needle 18, and at this time, the puncture needle 18 is screwed into the limit position.

The first positioning block 19 is provided with two grooves 23, and the two grooves 23 are respectively located on two sides of the inner shaft 20.

In the present invention, two grooves 23 are used for inserting fingers in the puncture work and for stabilizing the puncture sheath 16.

The end tail of the injection needle 10 is connected with an injection needle tail 24, the injection needle tail 24 is screwed with the injection needle 10 and is connected with the guide needle 15, the end part of the guide needle 15 far away from the injection needle tail 24 extends out of the injection needle 10, and the end parts of the injection needle 10 and the guide needle 15 far away from the injection needle tail 24 are pointed.

The utility model discloses in, in order to reduce the damage and improve the accuracy, syringe needle 10 and guide pin 15 are fixed a position through syringe needle tail 24 and the mode of syringe needle 10 spiro union, when extracting pjncture needle 18, rotatory syringe needle tail 24 with guide pin 15 extract can.

The end part of the injection needle tail 24 far away from the injection needle 10 is screwed with an end cap 25, the end cap 25 extends out of the injection needle tail 24, and the guide needle 15 is connected with the injection needle tail 24 in a sliding way and is fixedly connected with the end cap 25.

The utility model discloses in, guide pin 15 carries out detachable the connection through end cap 25 and the 24 spiro union modes of syringe needle tail, can dismantle and disinfect washing or replace guide pin 15.

The injection needle tail 24 is composed of two circular truncated cones which are symmetrically arranged, the cross section area of the injection needle tail 24 is gradually increased from the middle to the two ends, and the outer surface of the injection needle tail 24 is rough.

The utility model discloses in, when extracting guide pin 15, holding syringe needle tail 24 and rotating syringe needle tail 24 with the hand, syringe needle tail 24 has the round platform of two mutual symmetries settings to constitute, and the finger is held on this part, and the finger can not be on syringe needle tail 24 along its endwise slip, improves stability, and syringe needle tail 24 surface is the roughness and has increased the frictional force of syringe needle tail 24 with the finger.

The utility model discloses a theory of operation does: the needle 10 and the guide needle 15 are inserted into the skin by positioning, the needle guide 15 is extracted by rotating the needle tail 24 with the hand while holding the needle tail 24, the anesthetic is injected through the second groove 14 to perform general local anesthesia, after the anesthesia is performed, the needle 10 is not extracted, the puncture needle 18 and the puncture outer pin 16 are inserted into the skin along the needle 10, the needle 10 is extracted, the puncture outer pin 16 and the puncture needle 18 which are left are the same as the puncture needle used in the usual manner, the puncture needle 18 is extracted to empty the third groove 17, and at this time, the subsequent liquid injection or liquid extraction can be performed.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although needle 10, puncture assembly 12, first channel 13, second channel 14, guide pin 15, puncture sheath 16, third channel 17, puncture needle 18, first positioning block 19, inner shaft 20, second positioning block 21, outer shaft 22, groove 23, needle tail 24, end cap 25, etc., are used more extensively herein, these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides an improvement apparatus of percutaneous vertebroplasty anesthesia injection and puncture instrument combination, includes syringe needle (10) and puncture subassembly (12), its characterized in that, puncture subassembly (12) in be equipped with syringe needle (10) looks adaptation and run through first tube seat (13) of puncture subassembly (12), syringe needle (10) and first tube seat (13) sliding connection, syringe needle (10) in be equipped with second tube seat (14), second tube seat (14) sliding connection have guide pin (15).

2. The improved apparatus of the percutaneous vertebroplasty anesthesia injection and puncture tool combination as claimed in claim 1, wherein the length of said lead (15) is longer than the length of the injection needle (10), and the length of said injection needle (10) is longer than the length of the puncture assembly (12).

3. The improved apparatus of the combination of percutaneous vertebroplasty anesthetic injection and puncture tool as claimed in claim 1, wherein said puncture assembly (12) comprises a puncture sheath (16), a third tube groove (17) is formed in said puncture sheath (16), a puncture needle (18) is slidably connected in said third tube groove (17), and said second tube groove (14) is formed in said puncture needle (18) and penetrates through said puncture needle (18).

4. The improved apparatus of the combination of percutaneous vertebroplasty anesthetic injection and puncture tool as claimed in claim 3, wherein a first positioning block (19) is disposed at an end of the puncture sheath (16), an inner shaft (20) is disposed on the first positioning block (19), a second positioning block (21) is disposed at an end of the puncture needle (18), an outer shaft (22) corresponding to the inner shaft (20) is disposed on the second positioning block (21), and the inner shaft (20) can extend into the outer shaft (22) and be screwed with the outer shaft.

5. The improved apparatus of the percutaneous vertebroplasty anesthetic injection and puncture tool combination as claimed in claim 4, wherein the first positioning block (19) and the second positioning block (21) are arranged in a circular arc shape, and the arc surface of the first positioning block (19) far away from the puncture sheath (16) is adapted to the arc surface of the second positioning block (21) near the puncture needle (18).

6. The improved apparatus for percutaneous vertebroplasty anesthesia injection and puncture tool combination as claimed in claim 4, wherein said first positioning block (19) is provided with two grooves (23), and said two grooves (23) are respectively located at two sides of said inner shaft (20).

7. The improved apparatus of the combination of percutaneous vertebroplasty anesthetic injection and puncture tool according to claim 1, wherein the end-to-end of the injection needle (10) is connected with an injection needle tail (24), the injection needle tail (24) is screwed with the injection needle (10) and connected with the guide needle (15), the end of the guide needle (15) far away from the injection needle tail (24) extends out of the injection needle (10), and the ends of the injection needle (10) and the guide needle (15) far away from the injection needle tail (24) are pointed.

8. The improved apparatus for percutaneous vertebroplasty anesthesia injection and penetration tool combination as claimed in claim 7, wherein the end of the needle tail (24) far away from the injection needle (10) is screwed with an end cap (25), the end cap (25) extends out of the needle tail (24), and the guide needle (15) is slidably connected with the needle tail (24) and fixedly connected with the end cap (25).

9. The improved apparatus for percutaneous vertebroplasty anesthesia injection and penetration tool combination as claimed in claim 7, wherein said needle tail (24) comprises two circular truncated cones symmetrically disposed with each other, the cross-sectional area of said needle tail (24) is gradually increased from the middle to both ends thereof, and the outer surface of said needle tail (24) is rough.

10. The improved apparatus for percutaneous vertebroplasty anesthetic injection and penetration tool combination as claimed in claim 7, wherein said outer surface of said needle tail (24) is roughened.