CN114748139A - Puncture device suitable for epidural space and epidural catheter placement for anesthesia department - Google Patents
Puncture device suitable for epidural space and epidural catheter placement for anesthesia department Download PDFInfo
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- CN114748139A CN114748139A CN202210295652.7A CN202210295652A CN114748139A CN 114748139 A CN114748139 A CN 114748139A CN 202210295652 A CN202210295652 A CN 202210295652A CN 114748139 A CN114748139 A CN 114748139A
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3401—Puncturing needles for the peridural or subarachnoid space or the plexus, e.g. for anaesthesia
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3454—Details of tips
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Abstract
The invention provides a puncture device suitable for an epidural space and an epidural catheter for an anesthesia department, and relates to the technical field of anesthesia appliances, the puncture device suitable for the epidural space and the epidural catheter for the anesthesia department comprises a chassis, two fixed seats of the chassis are symmetrically arranged, and the outer sides of the two fixed seats are both provided with an open slot; a sliding rod is arranged in the open slot; the two sliding rods are connected with sliding plates; swing joint has puncture mechanism on the sliding plate, during the puncture, remove puncture mechanism in vertical state, laminate the chassis at patient's back afterwards, puncture mechanism and patient spinous process clearance mid point align, drive the spiral tube through the plum blossom handle and advance slowly afterwards, along with the continuous back of screw in connecting cylinder in the spiral tube, the pjncture needle passes the toper auxiliary tube at first, then slowly pierce patient's skin, thereby the puncture of patient's waist has been realized, the puncture to the patient that this process can be stable, the pjncture needle can not take place the mistake partially, under the assistance of toper auxiliary tube, the pjncture needle can not appear crooked.
Description
Technical Field
The invention belongs to the technical field of anesthesia appliances, and particularly relates to a puncture device suitable for an epidural space and an epidural catheter in an anesthesia department.
Background
Intraspinal puncture is a necessary skill to perform intraspinal anesthesia. Continuous epidural space nerve block (called as cercospinal nerve block for short), subarachnoid space nerve block (called as lumbar anesthesia for short) and combined application of the two in accordance with the classification of intraspinal anesthesia, and accordingly spinal puncture is divided into operations of cercospinal nerve block, lumbar anesthesia and lumbar anesthesia.
Epidural puncture: fixing the skin of the puncture point by using the thumb and the index finger of the left hand, positioning the epidural puncture needle at the midpoint of the interspinous space, perpendicular to the skin of the patient, and slowly puncturing; the puncture needle sequentially punctures the skin, subcutaneous fat, supraspinal ligament, interspinous ligament and ligamentum flavum and finally reaches the epidural space.
Placing an epidural catheter: slowly placing an epidural catheter from the hollow epidural puncture needle, connecting the tail end of the catheter with an injector, and covering the puncture part with a sterile plaster, namely finishing the epidural puncture operation; when the lumbar anesthesia has poor blocking effect, local anesthetic is given through the epidural catheter to achieve satisfactory blocking effect, and at the moment, epidural anesthesia is completed.
The epidural puncture requires that the puncture needle vertically enter the midpoint of the spinous process gap of a patient, which is greatly examined for the hands of an anesthesiologist, once the patient involuntary shakes due to pain, the puncture needle deflects, is very unsafe for the patient, and can also cause the puncture needle to bend;
when the epidural catheter is placed, the puncture is performed in an inclined mode, a doctor needs to gradually feed the epidural catheter into the puncture part of a patient by hands, and the epidural catheter is unsmooth in the placing process and low in working efficiency because the doctor is provided with sterile gloves during operation and the catheter is thin and easy to slip.
Therefore, the puncture device suitable for the epidural space and the epidural catheter is very necessary to be invented in the anesthesia department.
Disclosure of Invention
In order to solve the technical problems, the invention provides a puncture device suitable for an epidural space and an epidural catheter for anesthesia department, so as to solve the problems of low working efficiency and poor stability of the traditional epidural puncture and epidural catheter placement proposed in the background technology. A puncture device suitable for an epidural space and an epidural catheter for anesthesia department comprises a chassis, wherein two fixed seats are arranged above the chassis, the two fixed seats are symmetrically arranged, and open slots are formed in the outer sides of the two fixed seats; a sliding rod is arranged in the open slot; the two sliding rods are connected with a sliding plate together; the sliding plate is movably connected with a puncture mechanism, and the puncture mechanism is also movably connected with the inclination angle adjusting frame; the inclination angle adjusting frame is fixed on the sliding plate;
the bottom of the base plate is arc-shaped, and a U-shaped groove is formed in the base plate; the sliding plate is also provided with a U-shaped groove, and the opening direction of the U-shaped groove is consistent with that of the U-shaped groove on the chassis;
the two sliding rods are sleeved with tightening springs, and the two tightening springs are positioned above the sliding plate; the sliding rod is also provided with a limiting disc, and the limiting disc is positioned below the sliding plate.
As a further technical scheme of the invention, the inclination angle adjusting frame is arc-shaped, an arc-shaped groove is formed in the inclination angle adjusting frame, and an angle marking is arranged on the outer side of the arc-shaped groove; one side of the top of the puncture mechanism is provided with a threaded column which is slidably connected in an arc-shaped groove in the inclination angle adjusting frame and is connected with a locking nut in a matching way;
and a scale indication block in an inverted triangle design is arranged above the threaded column.
As a further technical scheme of the invention, the puncture mechanism comprises a conical auxiliary tube, a connecting cylinder is fixedly arranged above the conical auxiliary tube, and perspective windows are arranged on the periphery of the connecting cylinder; the inner side of the upper end of the connecting cylinder is provided with an internal thread and is connected with a screwing pipe in a matching way; the external thread is arranged outside the screwing pipe, and the upper end of the screwing pipe is provided with a plum blossom handle; the top of the screwing tube is fixedly provided with a fixed disc, the middle of the fixed disc is provided with a hole, and a puncture needle is movably connected with the fixed disc.
As a further technical scheme of the invention, the longitudinal section of the puncture needle is arranged in a dry shape, and the puncture needle is matched and connected with the fixed disk through a groove at the top; the bottom of the puncture needle is arranged to be in a conical tip shape, and the puncture needle is provided with a through hole from top to bottom.
As a further technical scheme of the invention, the top of the puncture mechanism is fixedly provided with an epidural space puncture auxiliary component; the epidural space puncture auxiliary assembly comprises a U-shaped seat, a clamping seat is clamped in the U-shaped seat, and a medicine cylinder is arranged above the clamping seat; one end of the medicine cylinder is fixedly inserted with the puncture needle through the medicine conveying pipe, and the other end of the medicine conveying pipe is provided with the saccule.
As a further technical scheme of the invention, one end of the balloon, which is far away from the medicine cylinder, is provided with an air inlet valve, and the connecting end of the balloon and the medicine cylinder is provided with a one-way valve; the inside of cartridge case be provided with the floater to be provided with perspective window at the top of cartridge case.
As a further technical scheme of the invention, the epidural catheter placement auxiliary component is fixedly mounted at the top of the puncture mechanism and comprises a fixed cylinder, and two symmetrically-arranged sliding chutes are formed in the inner wall of the fixed cylinder; the fixed cylinder in be provided with two grip blocks that are the symmetry formula and set up, two the grip block all through T type pole sliding connection in the spout.
As a further technical scheme of the invention, return springs are arranged in the two sliding grooves and are positioned below the T-shaped rod; a spring is arranged between the two clamping blocks;
two the grip block adopt the stereoplasm rubber material to make, and offer the arc wall of the hand application of force of being convenient for in the outside of grip block.
Compared with the prior art, the invention has the following beneficial effects:
1. in the invention, during epidural puncture, the puncture mechanism is removed to be in a vertical state, then the chassis is attached to the back of a patient, the puncture mechanism is aligned with the middle point of the gap between spinous processes of the patient, then the screwing tube is driven by the plum blossom handle to move forwards slowly, the puncture needle firstly passes through the conical auxiliary tube and then slowly pierces the skin of the patient along with the continuous screwing of the screwing tube into the connecting cylinder, and finally the interspinous ligament and the ligamentum flavum are pierced, thereby realizing the puncture of the waist of the patient, the puncture needle can be stably punctured for the patient in the process, even if the patient shakes, the puncture needle can not be deviated, and under the assistance of the conical auxiliary tube, the puncture needle can be prevented from being bent;
2. according to the invention, after puncture is finished, medical staff forcibly presses the balloon, the gas pushes the one-way valve open, and pushes liquid medicine to be injected into the puncture needle, at the moment, the floating ball can also move to the medicine conveying pipe, the phenomenon that the floating ball moves back is found after the balloon is loosened, which indicates that the puncture needle is still wrapped by muscle tissue and does not reach an epidural space, then the plum blossom-shaped handle is slowly rotated again to drive the puncture needle to continue puncture until the puncture needle has a breakthrough feeling and the feeling of resistance disappears, and the balloon is pressed again to feel that the balloon is extruded smoothly without resistance, and the floating ball is stabilized at the medicine conveying pipe, which proves that the puncture needle has entered the epidural space at the moment, then the clamping seat is removed, and the liquid medicine is injected into the puncture needle by using the injection needle;
3. when the epidural catheter is used for puncture, firstly, the inclination of the puncture mechanism is adjusted according to the needle inserting angle, and when the epidural catheter is adjusted, the locking nut is firstly loosened, the puncture mechanism is inclined towards one side until the scale indication block indicates a proper angle mark; then screwing a lock nut, then attaching a chassis to the back of a patient, aligning a puncture mechanism with the midpoint of a gap between spinous processes of the patient, then driving a screwing tube to slowly move forwards through a plum blossom handle, after the screwing tube is continuously screwed into a connecting cylinder, firstly enabling a puncture needle to penetrate through a conical auxiliary tube and then slowly penetrate into the skin of the patient, sequentially enabling the puncture needle to penetrate subcutaneous fat, supraspinatus ligament, interspinous ligament and spring ligament along with continuous penetration of the puncture needle, when the puncture needle suddenly has resistance and has a breakthrough feeling of penetration, indicating that a lumbar anesthesia needle has reached a subarachnoid cavity, then enabling a medical worker to sequentially enable an outer catheter to penetrate through an epidural catheter auxiliary component and the puncture needle, placing the outer catheter into the body of the patient, and connecting an injector at the outer end of the outer catheter to realize injection of anesthetics;
4. according to the invention, when the outer catheter is placed, a medical worker pinches the two clamping blocks with two fingers, the outer catheter is clamped through the two clamping blocks, after the outer catheter is clamped, the medical worker presses the two clamping blocks into the fixed cylinder, the outer catheter is conveyed at the moment, after the back hand is released, the two clamping blocks lose the clamping force on the outer catheter and bounce under the action of the reset spring, the spring separates the two clamping blocks, the next round of outer catheter conveying action is facilitated, the outer catheter conveying mode cannot slip, and the placing efficiency of the outer catheter is greatly improved;
5. after anesthesia is finished, in order to reduce the pain of a patient, the puncture mechanism is required to be quickly pulled out of the patient, at the moment, the thumbs of two hands of a medical worker are pressed on the fixing seat, the two forefingers are hooked on the bottoms of the two ends of the sliding plate and are quickly lifted upwards, the sliding plate drives the puncture mechanism to be separated from the patient, and the puncture needle is taken out.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a bottom half view of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic structural view for epidural puncture according to the invention;
FIG. 4 is a rear view of FIG. 4 in accordance with the present invention;
FIG. 5 is a schematic structural view of the lancing mechanism of the present invention;
FIG. 6 is a schematic illustration of a needle construction of the present invention;
FIG. 7 is a schematic plan view of the present invention shown in FIG. 3;
FIG. 8 is a cross-sectional view B-B of FIG. 7 in accordance with the present invention;
FIG. 9 is a schematic structural view of the present invention used for placement of an epidural catheter puncture;
FIG. 10 is a schematic plan view of the present invention shown in FIG. 9;
FIG. 11 is a cross-sectional view A-A of FIG. 10 in accordance with the present invention;
FIG. 12 is an enlarged schematic view at C of FIG. 3 of the present invention;
FIG. 13 is a cross-sectional view of an epidural space puncture assist assembly of the invention;
fig. 14 is an exploded view of the auxiliary assembly for placing an epidural catheter in the invention.
In the figure:
1-chassis, 2-fixed seat, 3-open slot, 4-slide bar, 5-top spring, 6-inclination angle adjusting frame, 7-puncture mechanism, 71-conical auxiliary tube, 72-connecting cylinder, 73-perspective window, 74-screwing tube, 75-plum blossom handle, 76-fixed disk, 77-puncture needle, 8-U-shaped slot, 9-sliding plate, 10-limiting disk, 11-epidural space puncture auxiliary component, 111-U-shaped seat, 112-clamping seat, 113-cartridge, 114-balloon, 115-perspective window, 116-drug delivery tube, 117-air inlet valve, 118-one-way valve, 119-floating ball, 12-locking nut, 13-scale indication block, 14-epidural catheter auxiliary component, 141-fixed cylinder, 142-sliding chute, 143-return spring, 144-clamping block, 145-T-shaped rod and 146-spring.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in figures 1-14
The first embodiment is as follows:
the invention provides a puncture device suitable for an epidural space and an epidural catheter for anesthesia department, which comprises a chassis 1, wherein two fixed seats 2 are arranged above the chassis 1, the two fixed seats 2 are symmetrically arranged, and the outer sides of the two fixed seats 2 are provided with open slots 3; a sliding rod 4 is arranged in the open slot 3; the two sliding rods 4 are connected with a sliding plate 9 together; the sliding plate 9 is movably connected with a puncture mechanism 7, and the puncture mechanism 7 is also movably connected with the inclination angle adjusting frame 6; the inclination angle adjusting frame 6 is fixed on the sliding plate 9;
the bottom of the base plate 1 is arc-shaped, and the base plate 1 is provided with a U-shaped groove 8; the sliding plate 9 is also provided with a U-shaped groove, and the opening direction of the U-shaped groove is consistent with that of the U-shaped groove 8 on the chassis 1;
the two sliding rods 4 are sleeved with two puller springs 5, and the two puller springs 5 are positioned above the sliding plate 9; the sliding rod 4 is further provided with a limiting disc 10, and the limiting disc 10 is located below the sliding plate 9.
In this embodiment, the inclination angle adjusting frame 6 is arc-shaped, an arc-shaped groove is formed in the inclination angle adjusting frame 6, and an angle marking line is arranged on the outer side of the arc-shaped groove; a threaded column is arranged on one side of the top of the puncture mechanism 7, is slidably connected in an arc-shaped groove in the inclination angle adjusting frame 6 and is in matched connection with a locking nut 12;
and a scale indication block 13 in an inverted triangle design is arranged above the threaded column.
In this embodiment, the puncturing mechanism 7 includes a conical auxiliary tube 71, a connecting cylinder 72 is fixedly installed above the conical auxiliary tube 71, and a transparent window 73 is formed around the connecting cylinder 72; the inner side of the upper end of the connecting cylinder 72 is provided with an internal thread, and is matched and connected with a screwing pipe 74; an external thread is arranged outside the screwing pipe 74, and a plum blossom handle 75 is arranged at the upper end of the screwing pipe 74; the top of the screwing tube 74 is fixedly provided with a fixed disc 76, the middle of the fixed disc 76 is provided with a hole, and a puncture needle 77 is movably connected with the fixed disc 76.
In this embodiment, the longitudinal section of the puncture needle 77 is arranged in a shape of "dry", and the puncture needle 77 is connected with the fixed disk 76 by a groove at the top; the bottom of the puncture needle 77 is provided with a conical tip shape, and the puncture needle 77 is provided with a through hole from top to bottom.
It is specific a bit, in epidural puncture, remove puncture mechanism 7 in vertical state, laminate chassis 1 at patient's back afterwards, puncture mechanism 7 aligns with patient's spinous process clearance midpoint, drive closure pipe 74 through plum blossom handle 75 and move forward slowly afterwards, along with closure pipe 74 constantly screw in connecting cylinder 72 back, pjncture needle 77 passes toper auxiliary tube 71 at first, then slowly pierce patient's skin, then interspinous ligament, ligamentum flavum, thereby the puncture of patient's waist has been realized, the in-process can be stable punctures the patient, even if the condition that the patient appears shaking, pjncture needle 77 can not take place the wrong circumstances of inclining yet, and under toper auxiliary tube 71's assistance, can prevent that pjncture needle 77 from appearing crooked circumstances.
After anesthesia finishes, in order to reduce patient's painful value, will be quick pull out puncture mechanism 7 from the patient is internal, the thumb of medical personnel's both hands is pressed on fixing base 2 this moment, and two forefingers are scratched in the bottom at sliding plate 9 both ends to lift up rapidly, sliding plate 9 drives puncture mechanism 7 and breaks away from the patient, has realized taking out of pjncture needle 77.
Example two:
in this embodiment, an epidural space puncture auxiliary assembly 11 is fixedly mounted at the top of the puncture mechanism 7; the epidural space puncture auxiliary assembly 11 comprises a U-shaped seat 111, a clamping seat 112 is clamped in the U-shaped seat 111, and a medicine cylinder 113 is arranged above the clamping seat 112; one end of the medicine cylinder 113 is fixedly inserted with the puncture needle 77 through a medicine conveying pipe 116, and the other end of the medicine conveying pipe 116 is provided with a saccule 114.
In this embodiment, an air inlet valve 117 is disposed at one end of the balloon 114 away from the drug cartridge 113, and a one-way valve 118 is disposed at a connection end of the balloon 114 and the drug cartridge 113; the inside of the cartridge 113 is provided with a floating ball 119, and the top of the cartridge 113 is provided with a see-through window 115.
Specifically, after the puncture is completed, the medical staff forcibly presses the balloon 114, the gas pushes the one-way valve 118 open, and pushes the liquid medicine to be injected into the puncture needle 77, at the moment, the floating ball 119 also moves towards the medicine conveying pipe 116, the floating ball 119 is found to have a back movement sign after the balloon 114 is loosened, which indicates that the puncture needle 77 is still wrapped by the muscle tissue and does not reach the epidural space, then the plum blossom handle 75 is slowly rotated again to drive the puncture needle 77 to continue the puncture until the puncture needle 77 has a breakthrough feeling and the feeling resistance disappears, and the balloon 114 is pressed again, so that the balloon 114 is sensed to be smoothly extruded without the resistance feeling, and the floating ball 119 is stabilized at the medicine conveying pipe 116, which proves that the puncture needle 77 has entered the epidural space at the moment, then the clamping seat 112 is removed, and the liquid medicine is injected into the puncture needle 77 by using the injection needle.
Example three:
in this embodiment, the epidural catheter placing auxiliary assembly 14 is fixedly mounted at the top of the puncture mechanism 7, the epidural catheter placing auxiliary assembly 14 includes a fixed cylinder 141, and two symmetrically arranged sliding grooves 142 are formed on the inner wall of the fixed cylinder 141; two clamping blocks 144 are symmetrically arranged in the fixed cylinder 141, and the two clamping blocks 144 are slidably connected in the sliding groove 142 through a T-shaped rod 145.
Specifically, when the epidural catheter is placed for puncture, the inclination of the puncture mechanism 7 is adjusted according to the needle insertion angle, and when the epidural catheter is adjusted, the locking nut 12 is loosened to incline the puncture mechanism 7 to one side until the scale indication block 13 indicates a proper angle mark; then the locking nut 12 is screwed, the chassis 1 is attached to the back of a patient, the puncture mechanism 7 is aligned with the middle point of the gap between the spinous processes of the patient, then the screwing tube 74 is driven to slowly move forwards through the plum blossom handle 75, the puncture needle 77 firstly penetrates through the conical auxiliary tube 71 and then slowly penetrates into the skin of the patient along with the continuous screwing of the screwing tube 74 into the connecting cylinder 72, subcutaneous fat, supraspinal ligament, interspinous ligament and reed ligament can be sequentially penetrated along with the continuous penetration of the puncture needle 77, when the puncture needle 77 has resistance suddenly and has a breakthrough feeling, the lumbar anesthesia needle reaches the lower cavity of the arachnoid, then a medical worker sequentially penetrates the outer catheter through the epidural catheter placing auxiliary assembly 14 and the puncture needle 77, places the outer catheter into the body of the patient, and is connected with an injector at the outer end of the outer catheter to realize the injection of the anesthetic.
In this embodiment, the two sliding grooves 142 are both provided with a return spring 143, and the return spring 143 is located below the T-shaped rod 145; a spring 146 is arranged between the two clamping blocks 144; the two clamping blocks 144 are made of hard rubber materials, and arc-shaped grooves convenient for force application by hands are formed in the outer sides of the clamping blocks 144.
It is specific a bit, when putting into outer pipe, medical personnel are holding between the fingers two grip blocks 144 with two, carry out the centre gripping through two grip blocks 144 to outer pipe, after the centre gripping, medical personnel press two grip blocks 144 to fixed section of thick bamboo 141 in, outer pipe can be carried this moment, two grip blocks 144 lose the clamping-force to outer pipe after loosening the back hand, and bounce under reset spring 143's effect, spring 146 separates two grip blocks 144, be convenient for next round outer pipe transport action, the phenomenon of skidding can not appear in this outer pipe transport mode, very big improvement outer pipe put into efficiency.
Principle of operation
According to the invention, during epidural puncture, the puncture mechanism 7 is removed in a vertical state, then the chassis 1 is attached to the back of a patient, the puncture mechanism 7 is aligned with the middle point of the gap between spinous processes of the patient, then the screwing tube 74 is driven to move forwards slowly by the plum blossom handle 75, after the screwing tube 74 is screwed into the connecting cylinder 72 continuously, the puncture needle 77 firstly penetrates through the conical auxiliary tube 71, then slowly penetrates into the skin of the patient, and then the interspinous ligament and the ligamentum flavum are penetrated, so that the puncture of the waist of the patient can be realized, the patient can be stably punctured in the process, even if the patient shakes, the puncture needle 77 cannot be misaligned, and under the assistance of the conical auxiliary tube 71, the situation that the puncture needle 77 is bent can be prevented;
after the puncture is finished, the medical staff forcibly presses the balloon 114, the gas pushes the one-way valve 118 open, and pushes the liquid medicine to be injected into the puncture needle 77, at the moment, the floating ball 119 can also move to the medicine conveying pipe 116, the floating ball 119 is found to have a back movement sign after the balloon 114 is loosened, which indicates that the puncture needle 77 is still wrapped by the muscle tissue and does not reach the epidural space, then the plum blossom handle 75 is slowly rotated again to drive the puncture needle 77 to continue to puncture until the puncture needle 77 has a breakthrough feeling and feels that the resistance disappears, and the balloon 114 is pressed again, so that the balloon 114 is felt to be smoothly extruded without the resistance feeling, and the floating ball 119 is stabilized at the medicine conveying pipe 116, which proves that the puncture needle 77 has entered the epidural space at the moment, then the clamping seat 112 is removed, and the liquid medicine is injected into the puncture needle 77 by using the injection needle;
when the epidural catheter is placed for puncture, firstly, the inclination of the puncture mechanism 7 is adjusted according to the needle insertion angle, and when the epidural catheter is adjusted, firstly, the lock nut 12 is loosened, the puncture mechanism 7 is inclined towards one side until the scale indication block 13 indicates a proper angle mark; then the locking nut 12 is screwed, the chassis 1 is attached to the back of a patient, the puncture mechanism 7 is aligned with the middle point of the gap between spinous processes of the patient, then the screwing tube 74 is driven by the plum blossom handle 75 to move forwards slowly, the puncture needle 77 firstly passes through the conical auxiliary tube 71 and then slowly punctures the skin of the patient after the screwing tube 74 is screwed into the connecting cylinder 72 continuously, subcutaneous fat, supraspinal ligament, interspinous ligament and spring ligament can be sequentially passed through as the puncture needle 77 is penetrated continuously, when the puncture needle 77 has resistance suddenly and has a piercing feeling, the lumbar anesthesia needle reaches the subarachnoid cavity, then medical staff sequentially passes the outer catheter through the epidural catheter placement auxiliary assembly 14 and the puncture needle 77, the outer catheter is placed into the body of the patient, and the outer end of the outer catheter is connected with an injector to realize the injection of the anesthetic;
when the outer catheter is placed, a medical worker pinches the two clamping blocks 144 with two fingers, the outer catheter is clamped through the two clamping blocks 144, after the outer catheter is clamped, the medical worker presses the two clamping blocks 144 into the fixed cylinder 141, the outer catheter can be conveyed at the moment, after a back hand is released, the two clamping blocks 144 lose the clamping force on the outer catheter and bounce under the action of the reset spring 143, the two clamping blocks 144 are separated by the spring 146, the next round of outer catheter conveying action is facilitated, the outer catheter conveying mode cannot slip, and the placing efficiency of the outer catheter is greatly improved;
in the invention, after anesthesia is finished, in order to reduce the pain of a patient, the puncture mechanism 7 needs to be quickly pulled out of the patient, at the moment, the thumbs of two hands of a medical staff press the fixed seat 2, the two forefingers dig the bottoms of two ends of the sliding plate 9 and quickly lift up, the sliding plate 9 drives the puncture mechanism 7 to be separated from the patient, and the puncture needle 77 is taken out.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.
Claims (8)
1. The utility model provides a puncture device that department of anesthesia is applicable to epidural space and puts epidural catheter which characterized in that: the portable multifunctional chassis comprises a chassis (1), wherein two fixed seats (2) are arranged above the chassis (1), the two fixed seats (2) are symmetrically arranged, and open grooves (3) are formed in the outer sides of the two fixed seats (2); a sliding rod (4) is arranged in the open slot (3); the two sliding rods (4) are connected with a sliding plate (9) together; the sliding plate (9) is movably connected with a puncture mechanism (7), and the puncture mechanism (7) is also movably connected with the inclination angle adjusting frame (6); the inclination angle adjusting frame (6) is fixed on the sliding plate (9);
the bottom of the base plate (1) is arc-shaped, and a U-shaped groove (8) is formed in the base plate (1); the sliding plate (9) is also provided with a U-shaped groove, and the opening direction of the U-shaped groove is consistent with that of the U-shaped groove (8) on the chassis (1);
the two sliding rods (4) are sleeved with two puller springs (5), and the two puller springs (5) are positioned above the sliding plate (9); the sliding rod (4) is also provided with a limiting disc (10), and the limiting disc (10) is positioned below the sliding plate (9).
2. The puncture device for epidural space and epidural catheter placement according to claim 1, wherein: the inclination angle adjusting frame (6) is arc-shaped, an arc-shaped groove is formed in the inclination angle adjusting frame (6), and angle marking lines are arranged on the outer side of the arc-shaped groove; a threaded column is arranged on one side of the top of the puncture mechanism (7), is slidably connected in an arc-shaped groove in the inclination angle adjusting frame (6), and is connected with a locking nut (12) in a matching way;
and a scale indication block (13) in an inverted triangle design is arranged above the threaded column.
3. The puncture device for epidural space and epidural catheter placement according to claim 2, wherein: the puncture mechanism (7) comprises a conical auxiliary pipe (71), a connecting cylinder (72) is fixedly arranged above the conical auxiliary pipe (71), and perspective windows (73) are formed in the periphery of the connecting cylinder (72); the inner side of the upper end of the connecting cylinder (72) is provided with an internal thread and is matched and connected with a screwing pipe (74); an external thread is arranged outside the screwing pipe (74), and a plum blossom handle (75) is arranged at the upper end of the screwing pipe (74); the top of the screwing tube (74) is fixedly provided with a fixed disc (76), the middle of the fixed disc (76) is provided with a hole, and a puncture needle (77) is movably connected.
4. The puncture device for epidural space and epidural catheter placement according to claim 3, wherein: the longitudinal section of the puncture needle (77) is arranged in a dry shape, and the puncture needle (77) is connected with the fixed disk (76) in a matching way through a groove at the top; the bottom of the puncture needle (77) is arranged to be in a conical tip shape, and the puncture needle (77) is provided with a through hole from top to bottom.
5. The puncture device for epidural space and epidural catheter placement according to claim 4, wherein: an epidural space puncture auxiliary component (11) is fixedly arranged at the top of the puncture mechanism (7); the epidural space puncture auxiliary assembly (11) comprises a U-shaped seat (111), a clamping seat (112) is clamped in the U-shaped seat (111), and a medicine cylinder (113) is arranged above the clamping seat (112); one end of the medicine cylinder (113) is fixedly inserted with the puncture needle (77) through a medicine conveying pipe (116), and the other end of the medicine conveying pipe (116) is provided with a saccule (114).
6. The puncture device suitable for epidural space and epidural catheter placement according to claim 5, wherein: an air inlet valve (117) is arranged at one end of the balloon (114) far away from the medicine cylinder (113), and a one-way valve (118) is arranged at the connecting end of the balloon (114) and the medicine cylinder (113); the inside of the medicine cylinder (113) is provided with a floating ball (119), and the top of the medicine cylinder (113) is provided with a perspective window (115).
7. The puncture device suitable for epidural space and epidural catheter placement according to claim 4, wherein: an epidural catheter placing auxiliary component (14) is fixedly installed at the top of the puncture mechanism (7), the epidural catheter placing auxiliary component (14) comprises a fixed cylinder (141), and two symmetrically-arranged sliding chutes (142) are formed in the inner wall of the fixed cylinder (141); two clamping blocks (144) which are symmetrically arranged are arranged in the fixed cylinder (141), and the two clamping blocks (144) are connected in the sliding groove (142) in a sliding manner through a T-shaped rod (145).
8. The puncture device for epidural space and epidural catheter placement according to claim 7, wherein: reset springs (143) are arranged in the two sliding grooves (142), and the reset springs (143) are positioned below the T-shaped rods (145); a spring (146) is arranged between the two clamping blocks (144);
two grip blocks (144) adopt the hard rubber material to make, and set up the arc wall of being convenient for hand application of force in grip block (144)'s the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210295652.7A CN114748139A (en) | 2022-03-24 | 2022-03-24 | Puncture device suitable for epidural space and epidural catheter placement for anesthesia department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210295652.7A CN114748139A (en) | 2022-03-24 | 2022-03-24 | Puncture device suitable for epidural space and epidural catheter placement for anesthesia department |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114748139A true CN114748139A (en) | 2022-07-15 |
Family
ID=82328222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210295652.7A Withdrawn CN114748139A (en) | 2022-03-24 | 2022-03-24 | Puncture device suitable for epidural space and epidural catheter placement for anesthesia department |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114748139A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117860354A (en) * | 2024-03-13 | 2024-04-12 | 江西中医药大学附属医院 | Epidural anesthesia device |
-
2022
- 2022-03-24 CN CN202210295652.7A patent/CN114748139A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117860354A (en) * | 2024-03-13 | 2024-04-12 | 江西中医药大学附属医院 | Epidural anesthesia device |
| CN117860354B (en) * | 2024-03-13 | 2024-05-24 | 江西中医药大学附属医院 | Epidural anesthesia device |
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Application publication date: 20220715 |