CN116650075A - Injection auxiliary device for anesthesia department and application method thereof - Google Patents

Abstract

The application relates to an injection auxiliary device for anesthesia department and a use method thereof, which aim at the defect that the puncture depth, the puncture angle and the anesthetic injection amount of the injection device cannot be limited in the prior art, at least comprise a positioning module capable of positioning an injector on the puncture surface and an adjusting module for adjusting the relative position of the injector and the positioning module, wherein the positioning module positions a puncture point on the skin surface of a patient according to ultrasonic detection data/doctor guidance opinion, and the positioning module limits the position of the puncture point in a mode of limiting the skin state and the tissue form of a puncture area; the adjusting module can adjust an included angle between the injector and the positioning module, so that the injector can penetrate a preset length from a puncture point along a set angle, wherein the adjusting module can also limit the injection quantity of the injector, and the anesthesia degree is controlled; the positioning module can also define a penetration length of the syringe such that the syringe can deliver the drug to the designated tissue area.

Description

Injection auxiliary device for anesthesia department and application method thereof

Technical Field

The application relates to the technical field of injection anesthesia auxiliary equipment, in particular to an injection auxiliary device for anesthesia department and a use method thereof.

Background

Anesthesia is a behavioral action that uses theoretical, clinical knowledge and techniques about the basis of anesthesia to remove the pain sensation from the patient during surgery while ensuring the safety of the patient's surgery, creating good conditions for the surgery. Currently, anesthesiology has become a specialized independent discipline in clinical medicine, mainly including clinical anesthesiology, emergency resuscitation medicine, intensive care therapeutics, pain diagnostics, and other related medical and mechanical studies. Anesthesiology is a comprehensive discipline for studying anesthesia, analgesia, emergency resuscitation, and critical medicine.

During operation, the anesthesia mode of the patient is mainly inhalation, injection and compound anesthesia. When a patient suffering from buttocks and anus is subjected to hand operation, as the buttocks mainly comprise gluteus maximus, gluteus medius, piriform muscles and more fat, the anesthesia mode is generally selected by injecting local anesthesia, soaking type injection is adopted, the anesthesia mode gradually goes deep, the local pain relieving, forgetting, muscle loosening and other purposes are caused for the patient, when the anesthetic is injected, medical staff is required to push a push rod of an injector after the needle is pricked so as to inject part of the anesthetic, and then the push rod is sequentially and deeply pricked and sequentially pushed so as to infiltrate the anesthetic into the buttocks of the patient, wherein in actual operation, the control operation depth and the anesthetic injection dosage are calculated and working experience of the medical staff. In addition, the lumbar anesthesia occupies a great proportion in the operation at present, but the spine anesthesia in the operation is complex and depends on the experience and the manipulation of doctors, and the anesthesia puncture position can be accurately judged by the lateral bending body feeling positioning for common people, but compared with obese people and pregnant women, the fracture gap between the bone segments can not be conveniently judged by touching the protrusion of the bone segments of the spine even in the lateral bending body feeling position. So that an accurate lumbar anesthesia can not be performed. In the existing clinical medicine, when facing the situation, an ultrasonic probe is generally used for auxiliary positioning to find a bone gap. However, after the bone gap is found, because the human tissue has strong flexibility, when the injector is replaced to puncture, the puncture motion is deviated along with the deformation of the human tissue, so that the puncture needle cannot be effectively inserted into the bone gap.

Patent document with publication number CN107320817a discloses an auxiliary injection device, including syringe and auxiliary assembly, the one end of syringe is fixed with the needle tubing, the inside sliding connection of syringe has the piston, the one end that the needle tubing was kept away from to the piston is fixed with the push rod, the one end that the needle tubing was kept away from to the push rod is fixed with the ejector pad, auxiliary assembly includes sleeve pipe, push pedal, telescopic link, motor and block, sheathed tube one end is equipped with the through-hole to the through-hole diameter is less than the syringe diameter, the syringe is fixed at sheathed tube one end, sliding connection has the push pedal in the sleeve pipe, be equipped with in the middle of the push pedal with ejector pad matched with recess, the center department vertical fixation of the one end that the ejector pad was kept away from to the push pedal has the telescopic link. Although the auxiliary pushing structure of the injector is improved, the injector can not be accurately positioned at a designated puncture position, and the puncture process is easy to generate puncture deviation when human tissues are deformed.

Accordingly, in view of the drawbacks of the prior art, the present application provides an injection assisting device for anesthesia, which is capable of positioning a syringe at a fixed point and limiting a penetration angle, a penetration length, and an injection amount of the syringe. The injection auxiliary device can also limit the form of human tissues of the region to be penetrated, so that the injector can accurately penetrate the region to be penetrated under the condition that the penetration angle and the penetration depth are determined in advance, and the puncture needle of the injector can accurately reach the designated tissue layer to be anesthetized.

Furthermore, there are differences in one aspect due to understanding to those skilled in the art; on the other hand, as the inventors studied numerous documents and patents while the present application was made, the text is not limited to details and contents of all that are listed, but it is by no means the present application does not have these prior art features, the present application has all the prior art features, and the applicant remains in the background art to which the rights of the related prior art are added.

Disclosure of Invention

In view of the shortcomings of the prior art, the technical scheme of the application provides an injection auxiliary device, in particular an injection auxiliary device for anesthesia department, which at least comprises a positioning module capable of positioning a syringe on a puncture surface and an adjusting module for adjusting the relative position of the syringe and the positioning module, wherein the positioning module positions a puncture point on the skin surface of a patient according to ultrasonic detection data/doctor guidance comments, and the positioning module limits the position of the puncture point in a manner of limiting the skin state and tissue morphology of a puncture area; the adjusting module can adjust an included angle between the injector and the positioning module, so that the injector can penetrate a preset length from a puncture point along a set angle, wherein the adjusting module can also limit the injection quantity of the injector, and the anesthesia degree is controlled; the positioning module is further capable of defining a penetration length of the syringe such that the syringe is capable of delivering a drug to a designated tissue area; the positioning module at least comprises a positioning shell and a positioning column arranged on the outer side of the side wall of the positioning shell in a surrounding mode, wherein the positioning column can be arranged in a mode that an included angle with the axis of the positioning shell is adjustable in size, so that the positioning column which is arranged in a ring mode can adjust the size of a puncture area positioned by the positioning column according to the puncture depth. The positioning module can limit the puncture area, so that the puncture process of the injector can not cause larger tissue deformation, the positioning module can limit the puncture angle and the puncture length of the injector, the injection needle of the injector can accurately penetrate through a bone gap and reach a designated area to be anesthetized, the effectiveness of the puncture operation of the anesthetic needle is ensured, the positioning module can limit the state of the skin surface, and the puncture point marked on the skin surface can represent clear position information.

According to a preferred embodiment, one end of the positioning column is rotatably connected to a first ring body, the first ring body is sleeved on the side wall of the positioning shell, and the first ring body can translate along the axial direction of the positioning shell, so that the threshold value of the penetration length defined by the positioning module is adjusted. The positioning device has the advantages that the first ring body can drive the positioning column to directionally move, so that the height supported by the positioning column is changed, the positioning column can define more accurate supporting height within a smaller supporting height threshold range, and the positioning module can ensure the penetrating accuracy.

According to a preferred embodiment, a second ring body capable of translating along the axial direction of the positioning column is movably connected to the positioning column, and the second ring body can limit the angle between the positioning column and the positioning shell, so that when the positioning column defines a puncture area, the positioning shell is suspended above a puncture point, and the suspension height of the positioning shell can be adjusted according to the connection position of the second ring body and the positioning column; when the second ring body moves along the axial direction of the positioning shell, the connection position between the second ring body and the positioning column changes, and the second ring body can limit the size of the puncture area positioned by the positioning column.

According to a preferred embodiment, the end of the positioning housing facing the puncture point is further provided with a blocking piece defining the length of the needle body of the injector which remains outside the body after the injection needle has been inserted into the body, said blocking piece being removably mounted on a wheel module capable of driving the blocking piece to translate in the axial direction of the positioning housing.

According to a preferred embodiment, the adjustment module comprises at least an adjustment housing, an angle adjustment module and a control module arranged on the injector in a sleeved mode, wherein the angle adjustment module can limit the relative position of the injector in the adjustment housing, so that the injector is placed in the adjustment housing in a mode that the axis of the injector forms an included angle with the axis of the adjustment housing, and the injector penetrates through the injection needle of the positioning module to penetrate into a penetration point in a mode that the axis of the injector forms an included angle with a penetration surface.

According to a preferred embodiment, the angle adjusting module at least comprises a plurality of adjusting rods, the plurality of adjusting rods are connected with a third ring body sleeved on a needle cylinder of the injector in a circumferential arrangement mode, and one end of each adjusting rod, which is far away from the third ring body, is movably connected with an inner shell wall of the adjusting shell, so that the end part of each adjusting rod can be in reciprocating translation on the inner shell wall along the axial direction of the adjusting shell.

According to a preferred embodiment, when the ends of a plurality of the adjustment rods are positioned at different radial cross-sectional positions of the adjustment housing, the adjustment rods are suspended obliquely in the adjustment housing away from the third ring body to which one end of the adjustment housing is connected, whereby the third ring body defines an oblique angle of the injector.

According to a preferred embodiment, the control module comprises a clamping member for clamping the syringe, a clamping bar for limiting the position between the clamping member and the adjustment housing, and a driving member arranged at one end of the clamping bar away from the clamping member, wherein the driving member can drive the push rod of the injector to move in the syringe.

According to a preferred embodiment, a flow limiting module capable of preventing liquid medicine or blood from flowing back in the injection needle is arranged in a port, communicated with the needle cylinder, of the injection needle, and the flow limiting module can limit the liquid medicine in the needle cylinder to flow into the injection needle in one way only.

According to a preferred embodiment, the end of the runner module remote from the positioning housing is further provided with an adsorption element parallel to the blocking piece and defining the penetration position of the injection needle, said adsorption element being capable of being attached to the skin such that the injection needle penetrates the skin in a manner penetrating the adsorption element.

Drawings

FIG. 1 is a schematic view showing a preferred injection aid for anesthesia according to the present application;

FIG. 2 is a schematic view of a runner module of a preferred injection aid for anesthesia in accordance with the present application;

fig. 3 is a schematic structural view of a flow limiting module of a preferred injection aid for anesthesia according to the present application.

List of reference numerals

1: a syringe; 2: a positioning module; 3: an adjustment module; 11: an injection needle; 12: a needle cylinder; 13: a push rod; 14: a current limiting module; 21: positioning a shell; 22: positioning columns; 23: a first ring body; 24: a second ring body; 25: a baffle; 26: a runner module; 27: an absorbing member; 31: an adjustment housing; 32: an angle adjusting module; 33: a control module; 141: a flow-limiting sleeve; 142: a flow-limiting ring; 143: a spring; 144: a flow-limiting plate; 145: a concave sleeve; 231: a first positioning bolt; 241: a second positioning bolt; 261: a support wheel; 262: a transfer wheel; 263: a driving wheel; 264: a conveyor belt; 265: positioning a connecting rod; 266: rotating the screwing rod; 321: an adjusting rod; 322: a third ring body; 331: a clamping member; 332: clamping strips; 333: a driving member.

Detailed Description

The following detailed description refers to the accompanying drawings.

Example 1

The application provides an injection auxiliary device for anesthesia department, which at least comprises a syringe 1, a positioning module 2 and an adjusting module 3.

According to a specific embodiment shown in fig. 1, the injector 1 is arranged within the adjustment module 3, and the injector 1 is able to define its angle of penetration into human tissue by the adjustment module 3. The penetrating segment of the syringe 1 penetrates the body tissue of the designated area in a manner that passes through the positioning module 2. The positioning module 2 is capable of positioning a penetration area for facilitating accurate penetration of the syringe 1 into human tissue after measuring or analyzing the position of the penetration point. The positioning module 2 can inhibit the deformation of the human tissue of the puncture area by pressing and pulling the human skin, so that the human tissue of the puncture area can maintain a relatively stable form. The positioning module 2 can adjust its supporting height and supporting position according to the requirement, so that the length of the injector 1 that can penetrate into human tissue is limited by the positioning module 2. The positioning module 2 positions the puncture point on the skin surface of the patient according to the ultrasonic detection data/physician's instruction, and the positioning module 2 limits the position of the puncture point in such a way as to limit the skin condition and tissue morphology of the puncture area. The adjusting module 3 can adjust the included angle between the injector 1 and the positioning module 2, so that the injector 1 can penetrate a preset length from a penetration point along a set angle. The adjustment module 3 is also able to define the injection volume of the syringe 1 and thus control the degree of anaesthesia. The positioning module 2 can also define the penetration length of the syringe 1 such that the syringe 1 can deliver a drug to a designated tissue area. The adjusting module 3 is connected to the end of the positioning module 2 remote from the surface of the human body such that the two housings together form a cavity for accommodating the syringe 1, and the adjusting module 3 is able to define the position of the syringe 1 in the cavity such that the injection needle 11 of the syringe 1 can be passed out of the positioning module 2 with a certain inclination angle.

Preferably, the injector 1 comprises an injection needle 11, a cylinder 12 and a push rod 13. The injection needle 11 is capable of penetrating human tissue at a designated location in a manner that penetrates a penetration region defined by the positioning module 2. The positioning module 2 limits the depth of insertion of the injection needle 11 into the human tissue by limiting the length of the needle body of the injection needle 11 into the human tissue so that the anesthetic injected by the injection needle 11 can be accurately released in the designated human tissue. Preferably, both ends of the cylinder 12 have openings of different cross-sectional sizes, respectively, wherein the small-sized openings are butted with the injection needle 11. It is further preferable that the push rod 13 is inserted into an opening of a large cross-sectional size of the cylinder 12. The push rod 13 closes the opening of the cylinder 12 having a large cross-sectional size so as to be capable of reciprocating translation in the axial direction within the cylinder 12. Preferably, a flow restriction module 14 is also provided in the end chamber of the injection needle 11 connected to the needle cylinder 12. As shown in fig. 3, the flow limiting module 14 includes a flow limiting sleeve 141, the flow limiting sleeve 141 is connected to the inner sides of the injection needle 11 and the syringe 12, a flow limiting ring 142 is connected to the inner surface of the flow limiting sleeve 141, a flow limiting plate 144 is inserted into the flow limiting ring 142, one side of the flow limiting ring 142 is connected with a spring 143, and the other side of the spring 143 is connected to the flow limiting plate 144, and one side of the flow limiting plate 144 is connected with a concave sleeve 145, so that the flow limiting plate 144 cooperates with the concave sleeve 145 to avoid backflow of the liquid medicine or outflow of blood of a patient from the injection needle 11 by using the elasticity of the spring 143 and the blocking effect of the flow limiting plate 144 on the flow limiting ring 142.

Preferably, the positioning module 2 comprises a positioning housing 21, a positioning post 22, a first ring 23, a second ring 24, a baffle 25 and a runner module 26. Preferably, the positioning housing 21 may be a hollow cylindrical body such that its interior can be used to house at least part of the body of the syringe 1. Preferably, the positioning post 22 is slidably disposed on the shell side wall of the positioning housing 21 by the first ring body 23 such that it is annularly disposed outside the side wall of the positioning housing 21. Further preferably, one end of the positioning post 22 is rotatably connected to the first ring body 23. The first ring 23 is sleeved on the side wall of the positioning housing 21, and the first ring 23 can translate along the axial direction of the positioning housing 21, so as to adjust the threshold value of the penetration length defined by the positioning module 2. Specifically, one end of each of the positioning columns 22 is arranged on the first ring body 23 at intervals in a manner of encircling the outer side wall of the first ring body 23 and hinging with the outer side wall, so that the first ring body 23 sleeved on the positioning shell 21 can drive the positioning columns 22 to reciprocate and translate along the axial direction of the positioning shell 21, and the maximum height of the positioning columns 22 for supporting the positioning shell 21 can be changed along with the movement of the first ring body 23, namely, the maximum height of the positioning columns 22 for supporting the positioning shell 21 is the length of the axial extension line region of the positioning columns 22 extending to the positioning shell 21. The length of the positioning post 22 is fixed, and when the positioning post 22 moves back and forth along the axial direction of the positioning shell 21 along the first ring body 23, the length of the axial extension line area of the positioning shell 21, where the positioning post 22 extends, will also change along with the change, so that the maximum suspension height of the positioning shell 21 supported by the positioning post 22 changes, and the threshold value of the suspension height adjusted by rotating the positioning post 22 also changes along with the change of the maximum suspension height. Preferably, a first positioning bolt 231 is further provided on the first ring 23, so that when the first ring 23 translates to a proper position, the relative position of the first ring 23 and the positioning housing 21 is defined by screwing the positioning bolt penetrating through the ring.

Preferably, the positioning column 22 can be arranged in a manner that an included angle with the axis of the positioning shell 21 is adjustable, so that the size of a puncture area positioned by the positioning column 22 which is annularly arranged can be adjusted according to the puncture depth. Preferably, a second ring 24 capable of translating along the axial direction of the positioning column 22 is also movably connected to the positioning column 22. Specifically, the second ring 24 can limit the angle between the positioning post 22 and the positioning housing 21, so that when the positioning post 22 is supported in the puncture area, the positioning housing 21 is suspended above the puncture point, and the suspension height of the positioning housing 21 can be adjusted according to the connection position of the second ring 24 and the positioning post 22. Preferably, when the second ring 24 moves in the axial direction of the positioning housing 21, the connection position between the second ring 24 and the positioning post 22 changes, and the second ring 24 can define the size of the puncture area where the positioning post 22 is positioned.

Specifically, when the first ring 23 defines the cross-section of one end of the support structure formed by the plurality of positioning columns 22 arranged in a ring shape at intervals, the second ring 24 larger than the diameter of the first ring 23 is slidably connected to the rod body of the positioning column 22, and the plurality of positioning columns 22 connected to the first ring 23 are also connected to the same second ring 24, and the gap width between the plurality of positioning columns 22 can be changed along with the position change of the second ring 24 along the axial direction of the positioning housing 21, which is close to/far from the first ring 23, so that the plurality of positioning columns 22 construct a support structure in the shape of a truncated cone or a frustum. Preferably, the second positioning bolt 241 is disposed on the second ring 24, so that when the second ring 24 translates in a setting manner, the second positioning bolt 241 can define the connection position between the second ring 24 and the positioning column 22, so that the positioning column 22 can form a stable and suspended support structure with a proper height. Preferably, the directional translation of the second ring 24 can rotate the positioning post 22 around the position where the positioning post 22 is connected to the first ring 23, so that the included angle between the axis of the positioning post 22 and the axis of the positioning housing 21 is changed, and the puncture area located at the end of the positioning post 22 away from the first ring 23 is also changed. Specifically, when the second ring 24 moves in a direction away from the first ring 23, the angle between the axis of the positioning post 22 and the axis of the positioning housing 21 gradually decreases, and the supporting height of the positioning post 22 gradually increases, so that the suspension height of the positioning housing 21 on the skin surface gradually increases, and the area of the puncture area located at the end of the positioning post 22 away from the first ring 23 gradually decreases. When the second ring 24 moves in a direction approaching the first ring 23, the included angle between the axis of the positioning column 22 and the axis of the positioning housing 21 is gradually increased, and the supporting height of the positioning column 22 is gradually reduced, so that the suspension height of the positioning housing 21 on the skin surface is gradually reduced, and the area of the puncture area located at the end of the positioning column 22 away from the first ring 23 is gradually increased.

Preferably, the end of the positioning housing 21 facing the puncture site is further provided with a stop 25 defining the length of the needle body of the injection needle 11 of the syringe 1 remaining outside the body after penetration into the human body. Specifically, the stopper 25 can limit the distance that the end of the injection needle 11 connected to the cylinder 12 moves downward, thereby limiting the depth of penetration of the injection needle 11 into the human body. Preferably, the blocking piece 25 is detachably mounted on the runner module 26, and the runner module 26 can translate the blocking piece 25 in the axial direction of the positioning housing 21. As shown in fig. 2, the wheel module 26 includes a support wheel 261, a transfer wheel 262, a drive wheel 263, and a conveyor belt 264. Specifically, the supporting wheel 261, the transfer wheel 262 and the driving wheel 263 are laid out in a parallel manner, and both sides of the three wheels are provided with positioning connection rods 265. Preferably, the surfaces of the supporting wheel 261, the transfer wheel 262 and the driving wheel 263 are jacketed with a conveyor belt 264, so that the conveyor belt 264 can follow the movement of the driving wheel 263. Preferably, a blocking piece 25 is also erected on the conveyor belt 264 so that the position of the blocking piece 25 can be moved following the rotation of the conveyor belt 264. A rotary screw 266 is preferably also connected to the shaft of the drive wheel 263, so that the operator controls the movement of the flap 25 by screwing the rotary screw 266. Preferably, a distance scale is also marked on the positioning connection rod 265 to facilitate measurement of the moving distance of the flap 25. Preferably, the end of the rotor module 26 remote from the positioning housing 21 is further provided with an absorbent member 27 capable of contacting the skin. The suction member 27 and the blocking piece 25 are parallel to each other, and the injection needle 11 penetrates the suction member 27 and then pierces the human tissue. Preferably, a sponge body with an epidermis anesthetic is provided on the adsorbing member 27, so that when the adsorbing member 27 presses the skin, the sponge body contacts with the skin to anesthetize the skin of the patient surface before the injection needle 11 is penetrated, thereby reducing the stress response degree of the patient.

Preferably, after the positioning module 2 obtains a general anesthetic position, it supports the positioning posts 22 in the epidermis area corresponding to the anesthetic position, so that a plurality of positioning posts 22 arranged at intervals in an annular form can encircle an area to be needled on the skin surface of a human body, one end of the positioning posts 22 supported on the skin surface can move when the second ring 24 moves along the axial direction of the positioning shell 21, so that the area of the annular area defined by the positioning posts 22 arranged at intervals in an annular form is increased, and as one end of the positioning posts 22 is positioned on the skin surface, the expansion movement generated by the positioning posts 22 drives the skin to generate the same expansion movement, so that the skin in the limited area is stretched and straightened along with the movement of the positioning posts 22, and the deformation possibly generated by the skin and tissues in the area under other external forces is reduced. Specifically, after the approximate position and angle to be pierced are obtained, the positioning module 2 is pressed and fixed against the skin area to be pierced. The positioning column 22 moves along with the second ring body 24 to tightly support the skin at the puncture part, and the periphery of the bottom end of the positioning column 22 is provided with a support block, so that the contact area between the support block and the skin is increased, and the skin is more stably supported by the device. Further preferably, the bottom surface of the supporting block is provided with a convex small ball, so that friction force between the small ball and skin is increased, and sliding is prevented. After the syringe 1 is placed in the positioning housing 21, at least part of the needle body of the injection needle 11 passes through the blocking piece 25 and the adsorbing member 27 in order. When the positioning column 22 spreads the skin of the area to be penetrated, the adsorbing member 27 can perform a smaller range of accurate positioning on the area to be penetrated, and the adsorbing member 27 can press the skin and subcutaneous tissue against, thereby avoiding deformation of the tissue after the injection needle 11 is penetrated. The positioning module 2 performs a small-range positioning of the penetration position and a definition of the skin condition by means of the positioning posts 22, so that the skin can be marked and needled in a tight state. Preferably, the ultrasonic positioning device is detachably mounted on the positioning housing 21 upon confirmation of the puncture location using the ultrasonic device, so that after the positioning post 22 defines the state of the skin and subcutaneous tissue in a certain area, the subcutaneous verification of the region to be punctured using the ultrasonic device is performed, thereby obtaining an accurate puncture path. And because the skin and subcutaneous tissue in the area are acted by the pulling force provided by the positioning column 22, the skin and subcutaneous tissue in the area can always keep a stable state under the condition that the positioning module 2 is not removed, and a doctor performs needling operation according to the verified path, so that the injection needle 11 can accurately penetrate into accurate positions such as bone gaps and the like. Preferably, the detection viewing angle of the ultrasound device may coincide with the axial direction of the positioning housing 21, such that the detection orientation of the ultrasound device is the initial direction defined by the positioning housing 21, and the injector 1 is able to make an angular deflection with respect to the positioning housing 21 to position its needle 11 in a suitable direction, such that the needle 11 is able to penetrate the tissue along a suitable path.

Preferably, after the positioning module 2 positions a larger range by using the positioning column 22, the adsorbing member 27 is attached to the skin surface, and the needle position is positioned in a smaller range by limiting the concave-convex deformation of the skin, so that the injection needle 11 can accurately penetrate into the straightened and relatively fixed tissue. The application can ensure that the needling position is positioned more accurately by continuously narrowing the positioning range. The height of the suction member 27 is adjustable so that the needle body of the injection needle 11 passing through the suction member 27 can be adjusted as desired. Preferably, the positioning area of the truncated cone-shaped positioning structure defined by the positioning column 22 can be adjusted according to the area of the positioning column 22 for stretching, so that the positioning column 22 is suitable for skin stretching requirements of different sizes, the application range of the positioning module 2 is wide, and the practicability is higher.

Preferably, the vertical center line of the circular table constructed by the positioning columns 22 distributed at intervals in a plurality of rings coincides with the axis of the positioning shell 21, so that the inclination angle formed by the injector 1 in the positioning shell 21 is the complementary angle of the intersection angle between the injector 1 and the straightened skin, thereby facilitating the doctor to adjust the angle of the injector 1 in the positioning shell 21 in advance after acquiring the puncture path. Preferably, the positioning housing 21 is made of transparent material, so that a doctor can observe the internal condition of the syringe 1 in the positioning housing 21, and real-time adjustment is facilitated. Based on the positioning structure, medical staff does not need to singly prop up the skin by one hand, so that the injection operation of the medical staff is simplified, and the working efficiency is improved.

Because the vertical central line of the bottom surface of the conical supporting cylinder 1 and the axial line of the positioning outer cylinder 2 are on the same straight line, the bone marrow puncture needle is naturally vertical to the skin positioned by the conical supporting cylinder 1, and the bone marrow puncture needle is ensured to vertically enter the skin and bone marrow.

The observation holes 6 are uniformly formed in the conical supporting cylinder 1 at intervals, the conical supporting cylinder 1, the positioning outer cylinder 2 and the positioning inner cylinder 3 are made of transparent materials, so that the internal condition of the bone marrow puncture needle can be observed, and real-time adjustment is facilitated.

By adopting the auxiliary device for bone marrow puncture fixation, medical staff does not need to use one hand to prop open the skin, so that the bone marrow puncture operation of the medical staff is simplified, and the working efficiency is improved.

The auxiliary device for bone marrow puncture fixation has the advantages that the positioning is accurate, the bone marrow puncture needle is ensured to vertically enter the skin and the bone marrow, the skin is convenient to tighten, the skin is more stable to tighten, the bone marrow puncture needle with different lengths is adapted, the skin positioning area tightening device is adapted to the stretching of skin positioning areas with different size areas, the puncture operation of medical staff is facilitated, and the working efficiency is improved.

Preferably, the adjustment module 3 comprises at least an adjustment housing 31, an angle adjustment module 32 and a control module 33 fitted over the injector 1. The angle adjustment module 32 is able to define the relative position of the syringe 1 in the adjustment housing 31 such that the syringe 1 is placed in the adjustment housing 31 with its axis at an angle to the axis of the adjustment housing 31, such that the syringe 1 penetrates the injection needle 11 of the positioning module 2 to penetrate the penetration point at an angle to the penetration surface. Specifically, the angle adjusting module 32 includes at least a plurality of adjusting rods 321, the plurality of adjusting rods 321 are connected with a third ring body 322 sleeved on the syringe 12 of the injector 1 in a circumferential arrangement, and one end of the adjusting rod 321 away from the third ring body 322 is movably connected with the inner shell wall of the adjusting shell 31, so that the end of the adjusting rod 321 can be reciprocally translated on the inner shell wall along the axial direction of the adjusting shell 31. Preferably, when the ends of the plurality of adjustment rods 321 are positioned at different radial cross-sectional positions of the adjustment housing 31, the adjustment rods 321 are suspended obliquely in the adjustment housing 31 away from the third ring body 322 to which one end of the adjustment housing 31 is connected, such that the third ring body 322 defines an oblique included angle of the syringe. Preferably, the control module 33 comprises a clamping member 331 for clamping the syringe 12, a clamping bar 332 for defining a position between the clamping member 331 and the adjustment housing 31, and a driving member 333 disposed at an end of the clamping bar 332 away from the clamping member 331, wherein the driving member 333 is capable of driving the push rod 13 of the injector 1 to move in the syringe 12.

Example 2

The embodiment provides a use method of an injection auxiliary device for anesthesia department, which at least comprises the following steps:

determining a puncture point and human tissue conditions below the puncture point by utilizing an ultrasonic probe or according to physician instruction, so as to set a puncture angle and a puncture depth according to bone distribution conditions in human tissue;

the structure of the positioning module 2 is adjusted according to the puncture angle and the depth, and the adjusted positioning module 2 is positioned and arranged in the puncture area, so that the puncture point is fully exposed;

adjusting the tilting state of the syringe 1 connected to the adjusting module 3 in the adjusting housing 31 so that the injection needle 11 of the syringe 1 can pass through the positioning module 2 at a preset tilting angle, and the injection needle 11 partially penetrates into human tissue under the restriction of the positioning module 2;

the adjustment module 3 controls the plunger 13 of the injector 1 to move within the barrel 12 so that anesthetic is injected into the designated body tissue.

Preferably, the positioning module 2 at least comprises a positioning shell 21 and a positioning column 22 annularly arranged on the outer side of the side wall of the positioning shell 21, wherein the positioning column 22 can be arranged in a mode that an included angle with the axis of the positioning shell 21 is adjustable in size, so that the size of a puncture area positioned by the annularly arranged positioning column 22 can be adjusted according to the puncture depth.

It should be noted that the above-described embodiments are exemplary, and that a person skilled in the art, in light of the present disclosure, may devise various solutions that fall within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present description and drawings are illustrative and not limiting to the claims. The scope of the application is defined by the claims and their equivalents. Throughout this document, the word "preferably" is used in a generic sense to mean only one alternative, and not to be construed as necessarily required, so that the applicant reserves the right to forego or delete the relevant preferred feature at any time.

Claims (10)

1. Injection aid for anesthesia department, comprising at least a positioning module (2) capable of positioning an injector (1) on a puncture surface and an adjusting module (3) for adjusting the relative position of the injector (1) and the positioning module (2), characterized in that the positioning module (2) positions a puncture point on the skin surface of a patient according to ultrasonic detection data/physician instruction, and the positioning module (2) limits the position of the puncture point in such a way as to limit the skin state and tissue morphology of the puncture area;

the adjusting module (3) can adjust an included angle between the injector (1) and the positioning module (2) so that the injector (1) can penetrate a preset length from a puncture point along a set angle, wherein the adjusting module (3) can also limit the injection quantity of the injector (1) so as to control the anesthesia degree; the positioning module (2) is further capable of defining a penetration length of the syringe (1) such that the syringe (1) is capable of delivering a drug to a designated tissue area;

the positioning module (2) at least comprises a positioning shell (21) and a positioning column (22) which is annularly arranged on the outer side of the side wall of the positioning shell (21), wherein the positioning column (22) can be arranged in a mode that an included angle with the axis of the positioning shell (21) is adjustable in size, so that the positioning column (22) which is annularly arranged can adjust the size of a puncture area positioned by the positioning column according to the puncture depth.

2. The injection aid for anesthesia department according to claim 1, characterized in that one end of the positioning post (22) is rotatably connected to a first ring body (23), the first ring body (23) is sleeved on a side wall of the positioning housing (21), and the first ring body (23) can translate along an axial direction of the positioning housing (21) so as to adjust a threshold value of a penetration length defined by the positioning module (2).

3. The injection aid for anesthesia department according to claim 1 or 2, characterized in that a second ring body (24) capable of translating along the axial direction of the positioning column (22) is movably connected to the positioning column (22),

the second ring body (24) can limit the angle between the positioning column (22) and the positioning shell (21), so that when the positioning column (22) defines a puncture area, the positioning shell (21) is suspended above a puncture point, and the suspension height of the positioning shell (21) can be adjusted according to the connection position of the second ring body (24) and the positioning column (22);

when the second ring body (24) moves along the axial direction of the positioning shell (21), the connection position between the second ring body (24) and the positioning column (22) changes, and the second ring body (24) can limit the size of a puncture area positioned by the positioning column (22).

4. An injection aid for anesthesia department according to one of claims 1 to 3, characterized in that the end of the positioning housing (21) facing the puncture site is further provided with a blocking piece (25) defining the length of the needle (11) of the syringe (1) remaining outside the body after penetration into the body, said blocking piece (25) being detachably mounted on a runner module (26), said runner module (26) being capable of translating said blocking piece (25) in the axial direction of the positioning housing (21).

5. The injection aid for anesthesia according to one of claims 1 to 4, characterized in that the adjustment module (3) comprises at least an adjustment housing (31), an angle adjustment module (32) and a control module (33) which is arranged over the syringe (1), wherein the angle adjustment module (32) is able to define the relative position of the syringe (1) within the adjustment housing (31) such that the syringe (1) is placed within the adjustment housing (31) with its axis at an angle to the axis of the adjustment housing (31), such that the syringe (1) penetrates the injection needle (11) of the positioning module (2) to pierce a piercing point with an angle to a piercing surface.

6. The injection aid for anesthesia department according to one of claims 1 to 5, characterized in that the angle adjustment module (32) comprises at least a plurality of adjustment rods (321), a plurality of the adjustment rods (321) being connected in a circumferential arrangement with a third ring body (322) which is arranged around the needle cylinder (12) of the injector (1), and that an end of the adjustment rod (321) remote from the third ring body (322) is movably connected with the inner housing wall of the adjustment housing (31) such that the end of the adjustment rod (321) is adjustably translated back and forth on the inner housing wall in the axial direction of the adjustment housing (31).

7. The injection aid for anesthesia according to one of claims 1 to 6, characterized in that, when the ends of a plurality of adjustment rods (321) are positioned at different radial cross-sectional positions of the adjustment housing (31), the adjustment rods (321) are suspended obliquely in the adjustment housing (31) away from the third ring (322) to which one end of the adjustment housing (31) is connected, whereby the third ring (322) defines an oblique angle of the injector.

8. The injection aid for anesthesia department according to one of claims 1 to 7, characterized in that the control module (33) comprises a grip (331) which grips the syringe (12), a clamping bar (332) which defines the position between the grip (331) and the adjustment housing (31), and a drive (333) which is arranged at the end of the clamping bar (332) remote from the grip (331), the drive (333) being able to bring about a movement of the push rod (13) of the injector (1) within the syringe (12).

9. The injection aid for anesthesia department according to one of claims 1 to 8, characterized in that a flow limiting module (14) capable of preventing backflow of liquid medicine or blood in the injection needle (11) is provided in a port where the injection needle (11) communicates with the syringe (12), the flow limiting module (14) being capable of limiting the liquid medicine in the syringe (12) to flow into the injection needle (11) only in one direction.

10. The injection aid for anesthesia department according to one of claims 1 to 9, characterized in that the end of the runner module (26) remote from the positioning housing (21) is further provided with an adsorption member (27) parallel to the blocking piece (25) and defining the penetration position of the injection needle (11), the adsorption member (27) being attachable to the skin such that the injection needle (11) penetrates the skin in such a way that it penetrates the adsorption member (27).