CN213048326U - Injection device for preoperative positioning of pulmonary nodules - Google Patents
Injection device for preoperative positioning of pulmonary nodules Download PDFInfo
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- CN213048326U CN213048326U CN202020849143.0U CN202020849143U CN213048326U CN 213048326 U CN213048326 U CN 213048326U CN 202020849143 U CN202020849143 U CN 202020849143U CN 213048326 U CN213048326 U CN 213048326U
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/04—X-ray contrast preparations
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
- A61B2090/3904—Markers, e.g. radio-opaque or breast lesions markers specially adapted for marking specified tissue
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The utility model discloses an injection device that is used for lung nodule preoperative location, it includes: the double-cavity synchronous syringe comprises an inner syringe, an outer syringe and a double-cavity puncture needle; the outer injector comprises an outer injection cylinder, a first liquid outlet and a second liquid outlet which are symmetrically arranged on the bottom wall of the outer injection cylinder, and a first piston assembly arranged in the outer injection cylinder; the inner injector comprises an inner injection cylinder, a liquid outlet III arranged at the circle center of the bottom wall of the inner injection cylinder and a second piston assembly arranged in the inner injection cylinder; the inner injection cylinder is fixedly arranged in the outer injection cylinder, and the circle centers of the inner injection cylinder and the outer injection cylinder are consistent. The utility model is directly applied to the positioning before the thoracoscope pneumonectomy, and the double-cavity synchronous injector can be used for assisting in determining the small pulmonary nodule part in the operation and is directly applied to the positioning before the thoracoscope pneumonectomy; therefore, the occurrence of related complications of preoperative positioning is avoided, and preoperative positioning of pulmonary nodules is accurately carried out; it has the characteristics of high safety and low cost.
Description
Technical Field
The utility model relates to a medical material technical field especially relates to an injection device that is used for lung nodule preoperative location.
Background
With the increasing awareness of general health care and the popularity of the use of low dose helical CT (ldct), especially high resolution CT, the rate of lung nodules is increasing.
The pulmonary nodules (SPN) are less than 2cm in diameter within the lung parenchyma, circular or elliptical, and generally do not have the increased density of atelectasis and lymphadenectasis; those with a diameter of less than or equal to 1cm are also called sub-centimeter nodules; those with higher density of focal haze and clearly distinguishable texture of blood vessels and bronchi in the nodule are called Ground Glass Opacities (GGO). With the increasing awareness of health and the widespread use of breast CT, the detection rate of lung nodules, particularly GGO, has increased significantly. SPN malignancy greater than 1cm is reported to be as high as 60%, while GGO malignancy is as high as 73%. Even if the size of the nodules in the lung is only a few millimeters, malignant lesions are likely to occur, and the SPN found in clinical work needs to be diagnosed clearly as soon as possible. The benign and malignant pulmonary nodules are difficult to judge according to the clinical symptoms and the imaging characteristics of a patient, the false negative rate of the needle biopsy is high, and the lung resection in SPN (video assisted thoracic surgery, VATS) which still considers malignant lesions after clinical observation is the optimal way for obtaining the pathological results of the pulmonary nodules and radically curing the pulmonary nodules at the same period at present.
The minimally invasive surgery represented by the thoracoscope surgery is the development direction of the thoracic surgery, and the thoracoscope pulmonary nodule excision surgery is accepted by most thoracic surgeons. However, the determination of the small pulmonary nodule site during the operation is a great problem for the thoracic surgeon, especially for the small nodule with a diameter less than 1cm and more than 2cm away from the lung surface, the embarrassing situation that the focus is located in the lung segment or the lung lobe is cut off but the small nodule is not found is frequently found clinically.
In recent years, various preoperative positioning methods are developed, and are almost used for searching for target lesions in preoperative positioning assistance surgery and are all in vitro positioning. Among them, the percutaneous positioning method under CT guidance is currently the most widely used and easy-to-operate method. However, CT guided percutaneous positioning also presents a number of problems: another partial scan of the CT is required before the needle is inserted, allowing the clinician to assess the needle insertion location, angle and depth. After the needle is inserted, the relative position of the positioning needle and the target focus still needs to be confirmed by scanning CT again, even the position is adjusted by scanning CT for many times and inserting the needle again for many times, so that the pain of the patient is increased, and the patient also receives extra radiation and increases the positioning cost. Meanwhile, after the needle is inserted in the external positioning way, a series of complications such as pneumothorax, hemothorax and the like can be generated, and even the life is threatened.
For the foregoing reasons, there is a strong need to design an injection device for preoperative positioning of pulmonary nodules that overcomes the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and the double-cavity synchronous injector can be used for assisting in determining the pulmonary nodule part in the operation and is directly applied to the positioning before the thoracoscopic pulmonary resection; therefore, the occurrence of related complications of preoperative positioning is avoided, and preoperative positioning of pulmonary nodules is accurately carried out; it has the characteristics of high safety and low cost.
In order to achieve the above object, the present invention mainly provides the following technical solutions:
an injection device for preoperative positioning of a pulmonary nodule, comprising:
the double-cavity synchronous syringe comprises an inner syringe, an outer syringe and a double-cavity puncture needle;
the outer injector comprises an outer injection cylinder, a first liquid outlet and a second liquid outlet which are symmetrically arranged on the bottom wall of the outer injection cylinder, and a first piston assembly arranged in the outer injection cylinder;
the inner injector comprises an inner injection cylinder, a liquid outlet III arranged at the circle center of the bottom wall of the inner injection cylinder and a second piston assembly arranged in the inner injection cylinder;
the inner injection cylinder is fixedly arranged in the outer injection cylinder, and the circle centers of the inner injection cylinder and the outer injection cylinder are consistent.
The injection device for preoperative positioning of pulmonary nodules as described above, wherein the first piston assembly comprises a first piston, a first push rod and a first push handle;
the first piston is a hollow circular ring, and the first push rod is hollow cylindrical; a second push handle of the second piston assembly is clamped in the groove on the first push handle; so as to ensure that the first push handle and the second push handle push downwards simultaneously.
The injection device for preoperative positioning of the pulmonary nodule, wherein the double-cavity puncture needle comprises a needle seat body and a double-cavity needle body; the needle base body comprises an inner needle base arranged at the circle center and butted with the liquid outlet III and an outer needle base annularly arranged on the inner needle base, and the outer needle base is respectively sleeved with the liquid outlet I and the liquid outlet II through a connecting sleeve;
the double-cavity needle body respectively guides the liquid A and the liquid B.
The injection device for preoperative positioning of the pulmonary nodules is characterized in that the double-cavity needle body comprises an inner puncture needle and an outer puncture needle which is annularly arranged on the outer wall of the double-cavity needle body;
the inner puncture needle and the inner needle base are communicated with the inner injection barrel and used for leading out the liquid A;
the outer puncture needle and the outer needle base are communicated with the outer injection barrel and used for guiding out the liquid B;
the head end of the outer puncture needle is provided with an annular filter screen.
The injection device for preoperative positioning of pulmonary nodules as described above, wherein the second piston assembly comprises a second piston, a second push rod and a second push handle;
the piston II is arranged in the inner injection cylinder, and a push rod II of the piston II penetrates out of the inner injection cylinder and can penetrate out of the groove in the push handle I to be connected with the push handle II;
the groove on the first push handle is used for accommodating the second push handle and the top end of the second push handle is provided with an extension ring which is clamped in the annular groove on the first push handle.
The injection device for preoperative positioning of pulmonary nodules as described above, wherein the inner and outer injection barrels are of uniform length;
and the outer walls of the inner injection cylinder and the outer injection cylinder are respectively provided with scale values.
The injection device for preoperative positioning of pulmonary nodules as described above, wherein the volume of the outer injection barrel is 0.5-1.5 ml;
the capacity of the inner syringe is 3 ml.
Compared with the prior art, the utility model discloses the beneficial effect who produces mainly embodies:
the utility model discloses an injection device for preoperative positioning of pulmonary nodules, which pre-fills nano-scale magnetic particles, 0.1-5% sodium alginate solution and 10% calcium gluconate solution required for positioning into the double-cavity synchronous injector; forming a gel-like nodule by using magnetic gel, thereby realizing the purpose of preoperative positioning of the pulmonary nodule; the magnetic fluid is used as a positioning material, and the magnetic fluid has the characteristics of low cost and simple preparation;
the utility model discloses an injection device for the preoperative positioning of pulmonary nodules, the injection device can combine its location mode to effectively realize the preoperative positioning of pulmonary nodules; the structure has the characteristics of novel structural design, convenience and practicability;
the utility model discloses an injection device for lung nodule preoperative positioning, magnetic fluid and calcium gluconate solution are injected near the lung nodule with the help of the double-cavity synchronous injector, and an anchoring magnet is used for searching near the lung surface puncture part in the operation;
the utility model discloses an injection device for preoperative positioning of pulmonary nodules, which injects A liquid and B liquid near the pulmonary nodules through the double-cavity puncture needle; the magnetic fluid meets the calcium gluconate solution to form a gel-like nodule at the moment when the magnetic fluid leaves the puncture needle; the principle is that after the sodium alginate reacts with multivalent cations (calcium ions) in the calcium gluconate, cross-linking bonds are formed among macromolecules and finally gel is formed. The particles of the permanent magnetic material are solidified in the gel in the process of forming the gel, so that the magnetic gel is formed; in the operation, the anchoring magnet is used for searching near a lung surface puncture part, and lung tissues attracted by the anchoring magnet are the part where the magnetofluid nodule is located, namely 1cm near the pulmonary nodule.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to clearly understand the technical means of the present invention and implement the technical means according to the content of the description, the following detailed description of the preferred embodiments of the present invention is given with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the dual chamber synchronous syringe of the present invention;
FIG. 2 is a schematic view showing the use state of the double-chamber synchronous syringe of the present invention;
FIG. 3 is a schematic view of a portion of the dual chamber synchronous syringe of the present invention;
FIG. 4 is a schematic diagram of the structure of the double-chamber needle body of the double-chamber synchronous syringe of the present invention;
fig. 5 is a partial structural schematic view of the double-lumen needle body of the present invention;
description of reference numerals:
10. inner injector 11, inner injection cylinder 12 and liquid outlet III
13. Second piston assembly 131, piston I132, push rod I
133. Push handle I14, extension ring
20. Outer syringe 21, outer syringe 22, liquid outlet I
23. Second liquid outlet 24 and first piston assembly
241. A second piston 242, a second push rod 243 and a second push handle
244. Open groove 245, annular groove
30. Double-cavity puncture needle 31, needle seat 32 and double-cavity needle body
311. Inner needle seat 312, outer needle seat 33 and connecting sleeve
34. Annular filter screen 321, inner puncture needle 322 and outer puncture needle
4. Solution A5, solution B6, and water for injection
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description will be given, with reference to the accompanying drawings and preferred embodiments, to the specific embodiments, structures, features and effects of the injection device, the preparation process and the application system for preoperative localization of pulmonary nodules according to the present invention.
As shown in fig. 1-4, the utility model discloses an injection device for lung nodule preoperative positioning, it includes:
the double-cavity synchronous syringe comprises an inner syringe 10, an outer syringe 20 and a double-cavity puncture needle 30;
the outer injector 20 comprises an outer injection cylinder 21, a first liquid outlet 22 and a second liquid outlet 23 which are symmetrically arranged on the bottom wall of the outer injection cylinder, and a first piston assembly 24 arranged in the outer injection cylinder;
the inner injector 10 comprises an inner injection cylinder 11, a liquid outlet three 12 arranged at the circle center of the bottom wall of the inner injection cylinder and a second piston assembly 13 arranged in the inner injection cylinder;
the inner injection barrel 11 is fixedly arranged in the outer injection barrel 21, and the circle centers of the inner injection barrel and the outer injection barrel are consistent.
As shown in fig. 1-4, the first piston assembly 24 of the present invention comprises a first piston 131, a first push rod 132 and a first push handle 133; the first piston 131 is a hollow circular ring, and the first push rod 132 is hollow cylindrical; the second push handle 243 of the second piston assembly 13 is clamped in the slot 244 on the first push handle 133; to ensure that the first push handle 133 and the second push handle 243 push down simultaneously.
As shown in fig. 1-4, the dual-chamber puncture needle 30 of the present invention based on the injection device for preoperative localization of pulmonary nodules comprises a needle holder body 31 and a dual-chamber needle body 32; the needle seat body 31 comprises an inner needle seat 311 arranged at the circle center and butted with the third liquid outlet 12 and an outer needle seat 312 annularly arranged on the inner needle seat 311, and the outer needle seat 312 is respectively sleeved with the first liquid outlet 22 and the second liquid outlet 23 through a connecting sleeve 33; the double-cavity needle body 32 is used for respectively guiding the liquid A4 and the liquid B5.
The utility model relates to an injection device for lung nodule preoperative positioning, wherein the double-cavity synchronous injector is skillfully designed, and is formed by assembling an inner injector 10, an outer injector 20 and a double-cavity puncture needle 30; wherein:
the injector consists of an inner injector 10 and an outer injector 20 which are surrounded, wherein, the magnetic particles and sodium alginate solution are mixed according to the ratio of (1-20) g: 1ml of solution A4 prepared by fully oscillating and uniformly mixing in proportion is filled into the inner injection barrel 11; then filling the 10% calcium gluconate solution as the B solution 5 into the outer injection cylinder 21; before operation, under the guidance of CT, the double-cavity puncture needle 30 is punctured to the range of 1cm near a pulmonary nodule, then a double-cavity synchronous injector pre-filled with magnetic fluid and calcium gluconate solution is injected, and the magnetic particles meet the calcium gluconate solution at the moment of leaving the puncture needle to form a gel-like nodule; in the operation, the anchoring magnet is used for searching near a lung surface puncture part, and lung tissues attracted by the anchoring magnet are the part where the magnetofluid nodule is located, namely 1cm near the pulmonary nodule.
As shown in fig. 4 and 5, the dual-lumen needle body 32 of the present invention comprises an inner puncture needle 321 and an outer puncture needle 322 annularly arranged on the outer wall thereof;
the inner puncture needle 321 and the inner needle seat 311 are communicated with the inner injection barrel 11 and used for leading out the liquid A;
the outer puncture needle 322 and the outer needle seat 312 are communicated with the outer injection cylinder 21 and used for guiding out the liquid B;
the head end of the outer puncture needle 322 is provided with an annular filter screen 34.
As shown in fig. 5, in the injection device for preoperative positioning of pulmonary nodules of the present invention, an annular filter screen 34 is disposed at the head end of the outer puncture needle 322, so as to make calcium gluconate form a spray shape at the moment of leaving the puncture needle, thereby increasing the contact area between the calcium gluconate and the magnetic fluid; ensuring that the magnetic gel can be formed with the magnetic fluid; because the magnetic fluid can form gel when meeting calcium ions, the annular filter screen 34 is arranged at the head end of the outer puncture needle so as to reduce the situation that the magnetic fluid enters blood flow.
Meanwhile, the inner puncture needle 321 and the outer puncture needle 322 annularly arranged on the outer wall of the inner puncture needle guide out the magnetic fluid and the calcium gluconate solution respectively; therefore, the magnetic fluid is arranged in the middle, and the calcium gluconate solution is wrapped at the two sides; the magnetic fluid can be ensured to be completely surrounded by the calcium gluconate solution, and the magnetic fluid is prevented from entering blood flow.
The double-cavity puncture needle 30 is separated from the injection tube, so that the requirement of filling corresponding liquid can be met; when the two components are injected, the double-cavity puncture needle 30 can be assembled for use, thereby improving the use convenience.
As shown in fig. 3, the second piston assembly 13 of the present invention comprises a second piston 241, a second push rod 242 and a second push handle 243;
the second piston 241 is arranged inside the inner injection cylinder 11, and the second push rod 242 thereof penetrates out of the inner injection cylinder 11 and can penetrate out of the slot 244 on the first push handle 133 to be connected with the second push handle 243;
the slot 244 on the first push handle 133 accommodates the second push handle 243 therein, and the top end of the second push handle 243 is provided with an extension ring 14 clamped in the annular slot 245 on the first push handle 133.
As shown in fig. 2, the injection device for the preoperative positioning of pulmonary nodules of the present invention specifically operates as follows during liquid priming:
when the liquid A is pre-filled, a connecting pipe is externally connected to the third liquid outlet 12 of the inner injection cylinder 11 and placed in the magnetic fluid, and the second push handle 243 is pulled to enable the liquid A to enter the inner injection cylinder 11; when a proper amount of the A liquid 6 is injected, the A liquid is externally connected with the injection water 6, so that a small amount of the injection water 6 is filled in the front end of the A liquid 4;
when the liquid B5 is filled again, the first liquid outlet 22 of the outer injection cylinder 21 is sealed by a special sealing cap, then the second liquid outlet 23 is externally connected with a connecting pipe, the connecting pipe is placed in calcium gluconate solution, and the first push handle 133 is pulled, so that the liquid B5 enters the outer injection cylinder 21;
after the pre-charging is finished; firstly, taking out the double-cavity needle body 32, and butting the liquid outlet three 12 with the inner needle seat 311; connecting sleeves 33 at two sides are sleeved on the first liquid outlet 22 and the second liquid outlet 23;
when the injection is needed for a patient, firstly, the double-cavity puncture needle 30 is punctured to the range of 1cm near a pulmonary nodule, then the first push handle 133 and the second push handle 243 are pushed simultaneously, and the magnetic fluid and the calcium gluconate solution are pushed out of the puncture needle; the two meet at the instant they leave the inner and outer needles to form a gel nodule.
As shown in fig. 3, the length of the inner injection cylinder 11 and the outer injection cylinder 21 of the present invention is consistent based on the injection device for the preoperative positioning of pulmonary nodules; the outer walls of the inner injection cylinder 11 and the outer injection cylinder 21 are respectively provided with scale values; the capacity of the outer injection cylinder 21 is 0.5-1.5 ml; the inner syringe 11 has a capacity of 3 ml.
The utility model relates to an injection device for preoperative positioning of pulmonary nodules, which consists of a magnetic fluid and a 10% calcium gluconate solution; wherein: the magnetic fluid is prepared from magnetic particles and 0.1-5% sodium alginate solution according to the proportion of (1-20) g: 1ml of the mixture.
The utility model discloses an injection device that is used for lung nodule preoperative location, the magnetic particle is 5-100 nanometer's magnetic particle that permanent magnet material made through hydrothermal method or chemical coprecipitation method.
The utility model discloses an injection device that is used for lung nodule preoperative location, permanent magnetic material is neodymium iron boron or ferriferrous oxide.
The utility model relates to an injection device for preoperative positioning of pulmonary nodules, which is characterized in that the magnetic gel is prepared by mixing magnetic fluid and calcium gluconate solution; the two meet to form a gel-like nodule which can be used to locate pulmonary nodules;
the utility model also provides a preparation technology of an injection device for lung nodule preoperative location, concrete step is as follows:
1) after the sodium alginate powder is treated by a high-pressure steam sterilization method, adding sterile deionized water for full dissolution, and preparing a sodium alginate solution with the mass concentration of 0.1-5%;
2) mixing the magnetic particles made of the sterilized permanent magnetic material with the sodium alginate solution prepared in the step 1) according to the weight ratio of (1-20) g: 1ml of the mixture is fully oscillated and uniformly mixed to prepare solution A, and the solution A is stored for later use;
3) taking a 10% calcium gluconate solution as a solution B;
4) pre-filling the solution A and the solution B into a double-cavity synchronous syringe, wherein the volume ratio of the solution A to the solution B is (5-20): 1; when in use, a proper amount of A, B liquid is injected to the vicinity of a focus according to the size of the focus, and A, B liquid forms block-shaped magnetic gel at the moment of leaving the injector.
The utility model also provides the application of the injection device for the preoperative positioning of the pulmonary nodules, magnetic particles are pre-dissolved in sodium alginate solution to form magnetic fluid, and the magnetic fluid and calcium gluconate solution are pre-filled in two injector cavities of the double-cavity synchronous injector respectively; pre-filling a small amount of injection water at the front end of the injection cavity of the magnetic fluid; before operation, under the guidance of CT, the double-cavity puncture needle 30 is punctured to the range of 1cm near a pulmonary nodule, then a double-cavity synchronous injector pre-filled with magnetic fluid and calcium gluconate solution is injected, and the magnetic particles meet the calcium gluconate solution at the moment of leaving the puncture needle to form a gel-like nodule; in the operation, the anchoring magnet is used for searching near a lung surface puncture part, and lung tissues attracted by the anchoring magnet are the part where the magnetofluid nodule is located, namely 1cm near the pulmonary nodule.
The utility model discloses still provide based on an injection device for lung nodule preoperative location, it includes:
magnetic fluid prepared from nanometer magnetic particles, 0.1-5% sodium alginate solution, and 10% calcium gluconate solution;
the double-cavity synchronous injector is used for injecting the magnetic fluid and the calcium gluconate solution to the vicinity of the pulmonary nodules;
an anchor magnet for searching for magnetofluid nodules near the lung surface puncture site.
The utility model discloses an injection device for lung nodule preoperative positioning, anchoring magnet surface adopts nickel plating, zinc-plating, nickel plating copper nickel, titanium nitride plating, plates type diamond or plate polytetrafluoroethylene's surface treatment method to handle; the anchoring magnet is circular or square.
The present invention has been further described with reference to the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (7)
1. An injection device for lung nodule preoperative positioning, characterized in that: it includes:
the double-cavity synchronous syringe comprises an inner syringe, an outer syringe and a double-cavity puncture needle;
the outer injector comprises an outer injection cylinder, a first liquid outlet and a second liquid outlet which are symmetrically arranged on the bottom wall of the outer injection cylinder, and a first piston assembly arranged in the outer injection cylinder;
the inner injector comprises an inner injection cylinder, a liquid outlet III arranged at the circle center of the bottom wall of the inner injection cylinder and a second piston assembly arranged in the inner injection cylinder;
the inner injection cylinder is fixedly arranged in the outer injection cylinder, and the circle centers of the inner injection cylinder and the outer injection cylinder are consistent.
2. The injection device for pre-operative positioning of a pulmonary nodule as recited in claim 1, wherein:
the first piston assembly comprises a first piston, a first push rod and a first push handle;
the first piston is a hollow circular ring, and the first push rod is hollow cylindrical; a second push handle of the second piston assembly is clamped in the groove on the first push handle; so as to ensure that the first push handle and the second push handle push downwards simultaneously.
3. The injection device for pre-operative positioning of a pulmonary nodule as recited in claim 1, wherein:
the double-cavity puncture needle comprises a needle seat body and a double-cavity needle body; the needle base body comprises an inner needle base arranged at the circle center and butted with the liquid outlet III and an outer needle base annularly arranged on the inner needle base, and the outer needle base is respectively sleeved with the liquid outlet I and the liquid outlet II through a connecting sleeve;
the double-cavity needle body respectively guides the liquid A and the liquid B.
4. The injection device for pre-operative positioning of a pulmonary nodule as recited in claim 3, wherein:
the double-cavity needle body comprises an inner puncture needle and an outer puncture needle annularly arranged on the outer wall of the inner puncture needle;
the inner puncture needle and the inner needle base are communicated with the inner injection barrel and used for leading out the liquid A;
the outer puncture needle and the outer needle base are communicated with the outer injection barrel and used for guiding out the liquid B;
the head end of the outer puncture needle is provided with an annular filter screen.
5. The injection device for pre-operative positioning of pulmonary nodules according to claim 2, wherein:
the second piston assembly comprises a second piston, a second push rod and a second push handle;
the piston II is arranged in the inner injection cylinder, and a push rod II of the piston II penetrates out of the inner injection cylinder and can penetrate out of the groove in the push handle I to be connected with the push handle II;
the groove on the first push handle is used for accommodating the second push handle and the top end of the second push handle is provided with an extension ring which is clamped in the annular groove on the first push handle.
6. The injection device for pre-operative positioning of a pulmonary nodule as recited in claim 1, wherein:
the lengths of the inner injection cylinder and the outer injection cylinder are consistent;
and the outer walls of the inner injection cylinder and the outer injection cylinder are respectively provided with scale values.
7. The injection device for pre-operative positioning of a pulmonary nodule as recited in claim 1, wherein:
the capacity of the outer injection cylinder is 0.5-1.5 ml;
the capacity of the inner syringe is 3 ml.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010224723 | 2020-03-26 | ||
| CN2020102247235 | 2020-03-26 |
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| CN213048326U true CN213048326U (en) | 2021-04-27 |
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| CN202020849143.0U Expired - Fee Related CN213048326U (en) | 2020-03-26 | 2020-05-20 | Injection device for preoperative positioning of pulmonary nodules |
| CN202010429583.5A Active CN113440622B (en) | 2020-03-26 | 2020-05-20 | Magnetic gel for pre-operation positioning of pulmonary nodules, preparation process and application system thereof |
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| CN115531618B (en) * | 2022-10-18 | 2023-11-21 | 苏州茵络医疗器械有限公司 | Degradable anchoring device for nodule marking and positioning and preparation method and application thereof |
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| US6245056B1 (en) * | 1999-02-12 | 2001-06-12 | Jack M. Walker | Safe intravenous infusion port injectors |
| CN101461945A (en) * | 2009-01-13 | 2009-06-24 | 武汉理工大学 | Method for preparing alginic acid magnetic material |
| US20180085496A1 (en) * | 2015-04-01 | 2018-03-29 | Yale University | Ferromagnetic particles bound to polymeric implants |
| CN204971632U (en) * | 2015-06-24 | 2016-01-20 | 张涛 | Biological glue syringe suitable for small tubercle operation location in lung |
| CN106421923A (en) * | 2016-09-23 | 2017-02-22 | 中国人民解放军军事医学科学院基础医学研究所 | Injectable antioxidation hydrogel and preparation method thereof |
| CN111820995A (en) * | 2017-11-10 | 2020-10-27 | 西安交通大学医学院第一附属医院 | Device for assisting mucosa peeling operation under endoscope |
| CN107887099B (en) * | 2017-11-10 | 2020-04-28 | 西安交通大学医学院第一附属医院 | Anastomosis device based on temperature-control self-adaptive magnetic composite material for micro-wound anastomosis |
| CN108514865A (en) * | 2018-03-17 | 2018-09-11 | 启东祥瑞建设有限公司 | A kind of preparation method of novel magnetic chitosan/sodium alginate plural gel ball |
| CN108514643A (en) * | 2018-04-18 | 2018-09-11 | 曾奕明 | A kind of small pulmonary nodules carry out operation consent color and tactile markings method |
| CN209662354U (en) * | 2018-05-18 | 2019-11-22 | 哈尔滨医科大学 | Injection of tissue glue dual chamber syringe |
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2020
- 2020-05-20 CN CN202020849143.0U patent/CN213048326U/en not_active Expired - Fee Related
- 2020-05-20 CN CN202010429583.5A patent/CN113440622B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113440622B (en) | 2023-05-26 |
| CN113440622A (en) | 2021-09-28 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210427 |