CN113288361A

CN113288361A - Puncture needle and using method

Info

Publication number: CN113288361A
Application number: CN202110598272.6A
Authority: CN
Inventors: 李智鹏; 时勇
Original assignee: Zhuhai Jindao Medical Technology Co ltd
Current assignee: Zhuhai Jindao Medical Technology Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-08-24

Abstract

The invention discloses a puncture needle and a use method thereof, wherein the puncture needle comprises: the left end of the first channel penetrates through the needle body along the axial direction of the needle body, the second channel is obliquely arranged from bottom to top to right, the upper end of the second channel penetrates through the peripheral wall of the needle body, and the lower end of the second channel is communicated with the right end of the first channel; the elastic air bag is connected to the outer peripheral wall of the needle body and communicated with the first channel or the second channel; the chock, the second passageway of pegging graft, the chock is used for the shutoff second passageway, and the passageway of gaseous circulation is regarded as to the first passageway of setting, and the second passageway of setting is because from down up the slope setting of right, so when aerifing to the elasticity gasbag, the stopper can be inserting to the syringe slope, and with gaseous injection second passageway, gaseous second passageway or first passageway entering elasticity gasbag of passing through, make the elasticity gasbag swell, this operation is operated in the art, saves the step.

Description

Puncture needle and using method

Technical Field

The invention relates to the technical field of medical instruments, in particular to a puncture needle and a using method thereof.

Background

Epidural needles are commonly used for local anesthesia. Among the prior art, pjncture needle includes the needle body and connects the nook closing member in the needle body, and the nook closing member sets up to cavity, and the trailing end connection of needle body has the gasbag, and the sword end of nook closing member can insert the epidural space along with the sword end of needle body together, and the tail end of nook closing member is used for inserting the gasbag, is filled with gas in the gasbag in advance, and after the pjncture needle penetrated the epidural space, the tail end of nook closing member inserted the gasbag, and the gas in the gasbag can release, and the gasbag reduces to target in place in order to instruct pjncture needle puncture.

It can be seen that in the prior art, the epidural puncture needle uses the air bag as a single replaceable component, which wastes resources and increases production cost; even if a single air bag is repeatedly inflated and used, the air bag is required to be taken down during inflation, the inflation is inconvenient, the processes of taking down the air bag and installing the air bag are complicated, and the use is inconvenient; when the elastic air bag is installed, a joint gap may be generated, so that the air bag is not filled well or fails.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the puncture needle, the air bag of the puncture needle can be repeatedly used, the air bag does not need to be detached, the inflation is convenient, and the use is also convenient.

The invention also provides a using method of the puncture needle.

A puncture needle according to an embodiment of a first aspect of the present invention includes: the left end of the first channel penetrates through the needle body along the axial direction of the needle body, the second channel is obliquely arranged from bottom to top to right, the upper end of the second channel penetrates through the peripheral wall of the needle body, and the lower end of the second channel is communicated with the right end of the first channel; the elastic air bag is connected to the outer peripheral wall of the needle body and communicated with the first channel or the second channel; and the plug block is inserted in the second channel and used for plugging the second channel.

The puncture needle provided by the embodiment of the invention has at least the following beneficial effects: the first channel is used as a channel for gas to flow through, the second channel is arranged from bottom to top and is inclined to right, so when the elastic air bag is inflated, a syringe can be obliquely inserted into the chock, gas is injected into the second channel, the gas enters the elastic air bag through the second channel or the first channel, the elastic air bag is inflated, the operation is operated in the operation, the step is saved, namely when the needle body is just inserted into subcutaneous tissue, because the left end of the first channel is blocked, the gas injected into the second channel only flows into the elastic air bag, the elastic air bag is inflated, when the needle body is inserted into an epidural space, the air pressure of the epidural space is lower than the external atmospheric pressure, the gas in the elastic air bag is extruded by the elastic air bag, and the elastic air bag is deflated, because the inflation mode is the inflation in the operation, the operation steps can be saved, the trouble of disassembling and assembling the elastic air bag is avoided, and because the second channel is obliquely arranged, the injector can be obliquely inserted when the air is injected, the inflation mode is in accordance with the ergonomics, and the inflation operation is convenient.

According to some embodiments of the invention, the puncture needle further comprises a needle core, the needle body is further provided with a third channel, the third channel penetrates through the left end and the right end of the needle body along the axial direction of the needle body, the needle core is inserted into the third channel, the third channel is used for injecting anesthetic or indwelling epidural anesthesia catheter after puncture success, and the needle core is used for plugging the third channel.

According to some embodiments of the present invention, the right end of the needle core is provided with a conical clamping seat, the right end of the needle body is provided with a conical concave portion, the needle core can be inserted into the conical concave portion in a matching manner when inserted into the needle body, and the conical clamping seat and the conical concave portion are arranged in a matching manner, so that the needle core can better match with the needle body and block the third channel.

According to some embodiments of the invention, a blocking piece is arranged on the radial edge of the conical clamping seat, the blocking piece protrudes leftwards, the blocking piece and the conical clamping seat define a clamping groove together, the clamping groove is clamped at the right end of the needle body, the blocking piece and the clamping groove can clamp the needle core on the needle body, and the needle core cannot be easily separated and cannot interfere with the puncture process.

According to some embodiments of the invention, a stopper is connected to a peripheral wall of a right end of the needle body, the stopper is arranged on the right side of the elastic air bag and used for being grasped, the stopper can be used for grasping and also can play a limiting role to prevent the needle body from being inserted too deeply, and the stopper is provided with an opening for observing the elastic air bag.

According to some embodiments of the invention, the stopper is detachably connected to the right end of the needle body, different stoppers can be replaced according to different holding modes, the needle body is conveniently produced, and the production trouble is reduced.

According to some embodiments of the present invention, a mushroom head is disposed on the outer peripheral wall of the needle body, a head of the mushroom head protrudes out of the outer peripheral wall of the needle body, the mushroom head is provided with a fourth channel, the fourth channel is communicated with the first channel, the elastic airbag is detachably connected to the mushroom head, the mushroom head can act as a barb for the elastic airbag, the elastic airbag is sleeved on the mushroom head, a sleeved port of the elastic airbag is contracted and fastened on the mushroom head, the elastic airbag cannot easily separate from the mushroom head, and airtightness can be ensured, that is, the elastic airbag is matched with the mushroom head, so that the elastic airbag can be ensured, and airtightness of the elastic airbag can also be ensured.

According to some embodiments of the invention, the outer peripheral wall of the needle body is provided with scales, and the scales are used for indicating the puncture depth, facilitating secondary puncture and facilitating depth understanding of a subsequent indwelling epidural anesthesia catheter.

According to some embodiments of the present invention, the needle body is provided at a left end thereof with a needle blade, the needle body is provided at a right end thereof with an indication recess corresponding to the needle blade in a left-right direction, the indication recess is provided to indicate the needle blade for facilitating puncturing, and the elastic air bag corresponds to the indication recess in an up-down direction.

A method of using a needle comprising the steps of:

a needle having a needle blade aligned with a position to be inserted by observing the indication concave portion and directing the indication concave portion downward;

the needle body is inserted into the epidermis until the left end of the first channel is just blocked;

inflating, namely inserting a plunger into the injector, inflating the first channel and the second channel, further inflating the elastic air bag, and pulling out the injector after inflation;

reinserting, namely slowly pushing the needle body forward until the gas in the elastic air bag is released, and stopping needle insertion when the front end of the needle body enters an epidural space;

and (4) performing anesthesia operation, namely pulling out the needle core, and injecting the anesthetic or indwelling an epidural anesthesia catheter into the epidural space from the third channel.

The use method of the puncture needle according to the embodiment of the invention has at least the following beneficial effects: the first channel is used as a channel for gas to flow through, the second channel is arranged from bottom to top and is inclined to right, so when the elastic air sac is inflated, the injector can be obliquely inserted into the chock, gas is injected into the second channel, the gas enters the elastic air sac through the second channel or the first channel, the elastic air sac is inflated, the operation is operated in the operation, the step is saved, namely when the needle body is just inserted into subcutaneous tissue, because the left end of the first channel is blocked, the gas injected into the second channel only flows into the elastic air sac, the elastic air sac is inflated, when the needle body is inserted into the epidural space, the air pressure of the epidural space is lower than the external atmospheric pressure, the gas in the elastic air sac is extruded by the elastic air sac, and the elastic air sac is deflated, because the inflation mode is performed during operation, the operation steps can be saved, and the trouble of disassembling and assembling the elastic air bag is avoided.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of the unused configuration of a lancet according to an embodiment of the present invention;

FIG. 2 is a schematic view of the needle of FIG. 1 shown in an inflated configuration;

FIG. 3 is a schematic view of the puncture needle shown in FIG. 1 in use with an indwelling epidural anesthesia catheter;

fig. 4 is a plan view of the puncture needle shown in fig. 1.

Needle body 100, first channel 110, second channel 120, third channel 130, tapered recess 140, stopper 150, opening 151, mushroom head 160, fourth channel 161, needle edge 170, indicating recess 180;

an elastic airbag 200, a chock 300;

the needle core 400, the conical clamping seat 410, the baffle 411 and the clamping groove 412;

an epidural anesthesia catheter 500.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 4, a puncture needle includes: the needle body 100 is provided with a first channel 110 and a second channel 120, the left end of the first channel 110 penetrates through the needle body 100 along the axial direction of the needle body 100, the second channel 120 is obliquely arranged from bottom to top to right, the upper end of the second channel 120 penetrates through the peripheral wall of the needle body 100, and the lower end of the second channel 120 is communicated with the right end of the first channel 110; the elastic air bag 200 is connected to the outer peripheral wall of the needle body 100, and the elastic air bag 200 is communicated with the first channel 110 or the second channel 120; the plug 300 is inserted into the second channel 120, and the plug 300 is used for plugging the second channel 120. The first channel 110 is arranged as a channel for gas to flow through, the second channel 120 is arranged from bottom to top and is inclined to right, so when the elastic air sac 200 is inflated, the injector can be obliquely inserted into the chock 300 and inject gas into the second channel 120, the gas enters the elastic air sac 200 through the second channel 120 or the first channel 110, the elastic air sac 200 is inflated, the operation is operated in the operation, the step is saved, namely when the needle 100 is just inserted into subcutaneous tissue, because the left end of the first channel 110 is blocked, the gas injected into the second channel 120 only flows into the elastic air sac 200, the elastic air sac 200 is inflated, when the needle 100 is inserted into an epidural space, the gas in the elastic air sac 200 is extruded by the elastic air sac 200, the elastic air sac 200 is shrunk, because the inflation mode is the inflation in the operation, so many steps can be saved, the trouble of disassembling and assembling the elastic air bag 200 is avoided, and because the second channel 120 is obliquely arranged, the injector can be obliquely inserted when injecting air, so that the air bag is in accordance with the ergonomics and the inflation operation is convenient. It can be understood that if the puncture needle is inserted too shallow, the front end of the puncture needle can not reach the epidural space, which leads to anesthesia failure; if the puncture needle is inserted too deeply, the spinal cord, peripheral nerves and blood vessels may be damaged, and thus the puncture needle needs to indicate that the puncture is in place. Referring to fig. 1, the second passage 120 is disposed to be inclined to the right from bottom to top.

In some embodiments, the needle further comprises a needle core 400, the needle body 100 is further provided with a third channel 130, the third channel 130 penetrates through the left end and the right end of the needle body 100 along the axial direction of the needle body 100, the needle core 400 is inserted into the third channel 130, the third channel 130 is provided for injecting anesthetic or indwelling epidural anesthesia catheter 500 after successful puncture, and the needle core is used for plugging the third channel 130.

In some embodiments, the right end of the needle core 400 is provided with the tapered clamping seat 410, the right end of the needle body 100 is provided with the tapered concave part 140, the insertion of the needle core 400 into the needle body 100 can enable the tapered clamping seat 410 to be fittingly inserted into the tapered concave part 140, and the tapered clamping seat 410 and the tapered concave part 140 are fittingly arranged, so that the needle core 400 can better fit the needle body 100 and block the third channel 130, namely, the tapered clamping seat 410 and the tapered concave part 140 are matched in shape.

In some embodiments, the stopper 411 is disposed on the radial edge of the conical holder 410, the stopper 411 protrudes leftwards, the stopper 411 and the conical holder 410 define a slot 412 together, the slot 412 is engaged with the right end of the needle body 100, the stopper 411 and the slot 412 are disposed to allow the stylet 400 to be locked on the needle body 100, the stylet 400 cannot be easily detached and cannot interfere with the puncturing process, it can be understood that the stopper 411 forms an interference fit with the outer peripheral wall of the needle body 100 or a contact protrusion is disposed on a side of the stopper 411 close to the needle body 100, and the contact protrusion forms an interference fit with the outer peripheral wall of the needle body 100.

In some embodiments, a stopper 150 is connected to a peripheral wall of a right end of the needle body 100, the stopper 150 is disposed at a right side of the elastic balloon 200, the stopper 150 is used for being grasped, the stopper 150 can be used for grasping and also can play a limiting role, the needle body 100 is prevented from being inserted too deeply, and the stopper 150 is provided with an opening 151 for observing the elastic balloon 200.

Referring to fig. 4, the stopper 150 extends in the front-rear direction, the elastic airbag 200 and the fourth channel 161 are disposed in the vertical direction, and the extension line of the stopper 150 in the front-rear direction is perpendicular to the axis of the fourth channel 161. it can be understood that the stopper 150 is parallel to the horizontal plane, and the fourth channel 161 is perpendicular to the horizontal plane, because the stopper 150 extends in the front-rear direction longer, the design in which the extension line of the stopper 150 is perpendicular to the axis of the fourth channel 161 is convenient for clinical operation, and the interference of the elastic airbag 200 with the operation due to the shielding of the stopper 150 is avoided.

In some embodiments, the stopper 150 is detachably connected to the right end of the needle body 100, so that different stoppers 150 can be replaced according to different grasping manners, the needle body 100 can be conveniently produced, and the production trouble is reduced, and it should be noted that the stopper 150 can rotate around the axis of the needle body 100.

In some embodiments, the outer peripheral wall of the needle body 100 is provided with the mushroom head 160, the head of the mushroom head 160 protrudes out of the outer peripheral wall of the needle body 100, the mushroom head 160 is provided with the fourth channel 161, the fourth channel 161 is communicated with the first channel 110, the elastic airbag 200 is detachably connected to the mushroom head 160, the mushroom head 160 can play a role of a barb for the elastic airbag 200, the elastic airbag 200 is sleeved on the mushroom head 160, a sleeved port of the elastic airbag 200 is contracted and tightly buckled on the mushroom head 160, the elastic airbag 200 cannot be easily separated from the mushroom head 160, and airtightness can be ensured, that is, the elastic airbag 200 is matched with the mushroom head 160, so that the elastic airbag 200 and the airtightness of the elastic airbag 200 can be ensured.

In some embodiments, the mushroom head 160 is integrally formed with the needle body 100, which is convenient to form and reduces production troubles, and it can be understood that the mushroom head 160 is integrally formed with the needle body 100, i.e., the mushroom head 160 and the needle body 100 are formed in a mold.

In some embodiments, the outer circumferential wall of the needle body 100 is provided with a scale for indicating the puncture depth, facilitating the second puncture, or knowing the depth when the epidural anesthesia catheter 500 is indwelling.

In some embodiments, the left end of the needle body 100 is provided with the needle blade 170, the right end of the needle body 100 is provided with the indicating recess 180, the indicating recess 180 and the needle blade 170 correspond in the left-right direction, the indicating recess 180 is provided for indicating the needle blade 170, so as to facilitate puncturing, and it should be noted that the indicating recess 180 is provided with filler particles with indicating color.

A method of using a needle comprising the steps of:

for the needle, the indication concave part 180 is observed, the indication concave part 180 is directed downwards, and the needle blade 170 is aligned with the position to be inserted; or viewing the elastomeric bladder 200 in the opposite direction, i.e., the direction of the needle blade 170;

the preliminary insertion is that the needle body 100 is inserted into the epidermis until the left end of the first channel 110 is just blocked;

inflating, namely inserting the chock block 300 by using a syringe, inflating the first channel 110 and the second channel 120, further inflating the elastic air bag 200, and pulling out the syringe after inflation;

reinserting, namely slowly pushing the needle body 100 forward until the gas in the elastic air bag 200 is released, inserting the needle body 100 into the epidural space, and stopping inserting the needle;

in the anesthesia operation, the needle core 400 is withdrawn, and an anesthetic is injected into the epidural space from the third channel 130 or the epidural catheter 500 is left.

The first channel 110 is arranged as a channel for gas to flow through, the second channel 120 is arranged from bottom to top and is inclined to right, so when the elastic air sac 200 is inflated, the injector can be inserted into the chock 300 while inclining, and gas is injected into the second channel 120, the gas enters the elastic air sac 200 through the second channel 120 or the first channel 110, so that the elastic air sac 200 is inflated, the operation is operated in the operation, the step is saved, namely, when the needle body 100 is just inserted into subcutaneous tissue, because the left end of the first channel 110 is blocked, the gas injected into the second channel 120 only flows into the elastic air sac 200, so that the elastic air sac 200 is inflated, when the needle body 100 is inserted into the epidural space, the air pressure of the epidural space is lower than the external atmospheric pressure, the gas in the elastic air sac 200 is extruded by the elastic air sac 200, the elastic air sac 200 is shrunk, because the inflation mode is inflated in the operation, therefore, the operation steps can be saved, and the trouble of disassembling and assembling the elastic airbag 200 can be avoided.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. a puncture needle, is characterized in that, comprises:

The needle body is provided with a first channel and a second channel, the left end of the first channel penetrates the needle body along the axial direction of the needle body, the second channel is inclined from bottom to top to the right, and the The upper end of the second passage penetrates the outer peripheral wall of the needle body, and the lower end of the second passage communicates with the right end of the first passage;

an elastic air bag, connected to the outer peripheral wall of the needle body, the elastic air bag communicates with the first channel or the second channel;

A plug block is inserted into the second channel, and the plug block is used to block the second channel.

2 . The puncture needle according to claim 1 , further comprising a needle core, the needle body is further provided with a third channel, and the third channel penetrates the needle body along the axial direction of the needle body. 3 . At the left and right ends of the needle body, the needle core is inserted into the third channel.

3 . The puncture needle according to claim 2 , wherein the right end of the needle core is provided with a tapered socket, the right end of the needle body is provided with a tapered recess, and the needle core is inserted into the When the needle body is used, the tapered socket can be fitted into the tapered recess.

4 . The puncture needle according to claim 3 , wherein the edge of the conical clip is provided with a blocking piece, the blocking piece protrudes to the left, and the blocking piece and the conical clip The seats together define a card slot, and the card slot is engaged with the right end of the needle body.

5 . The puncture needle according to claim 1 , wherein a block is connected to the peripheral wall of the right end of the needle body, the block is arranged on the right side of the elastic airbag, and the block For being grasped, the stopper is provided with an opening for observing the elastic airbag.

6 . The puncture needle according to claim 5 , wherein the stopper is detachably connected to the right end of the needle body. 7 .

7. The puncture needle according to any one of claims 1 to 6, wherein a mushroom head is provided on the outer peripheral wall of the needle body, and the head of the mushroom head protrudes out of the needle body The outer peripheral wall of the mushroom head is provided with a fourth channel, the fourth channel communicates with the first channel, and the elastic airbag is detachably connected to the mushroom head.

8 . The puncture needle according to claim 7 , wherein a scale is provided on the outer peripheral wall of the needle body. 9 .

9. A puncture needle according to claim 8, characterized in that: the left end of the needle body is provided with a needle edge, the right end of the needle body is provided with an indication recess, and the indication recess and the needle edge are in The left and right directions correspond, and the elastic airbags and the indicating recesses correspond to the up and down directions.

10. A method of using a puncture needle, comprising the following steps:

For the needle, observe the indication recess, turn the indication recess downward, and align the needle edge with the position to be inserted;

For initial insertion, insert the needle into the epidermis until the left end of the first channel is just blocked;

Inflate, insert the plug with a syringe, inflate the first channel and the second channel, and then inflate the elastic airbag, and pull out the syringe after inflation;

Insert again, push the needle forward slowly until the needle is inserted into the epidural space, and the gas in the elastic air bag is released;

Anesthesia operation, pull out the needle core, inject anesthesia into the epidural space from the third channel or indwelling epidural anesthesia catheter.