CN213347352U

CN213347352U - Nerve block puncture needle

Info

Publication number: CN213347352U
Application number: CN202020362165.4U
Authority: CN
Inventors: 徐成飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2021-06-04
Anticipated expiration: 2030-03-20

Abstract

The utility model relates to the technical field of puncture needles, in particular to a nerve block puncture needle, which comprises a needle handle, a puncture needle, a rubber hose and a needle hose, wherein a cavity is arranged in the needle handle, a rubber plug is arranged at the right end of the cavity, the rubber hose is connected with the lower end of the cavity at the left end of the rubber plug, the rubber hose is communicated with the cavity, the end part of the rubber hose is connected with a syringe pump joint, the needle hose is arranged at the left end of the needle handle and is communicated with the cavity of the needle handle, the puncture needle runs through the whole needle handle and the left end of the puncture needle is arranged in the needle; the utility model sets the needle head of the puncture needle as a round blunt surface, which can reduce the damage degree of medical personnel to nervous tissue in the propelling process, and the side hole of the indwelling hose can lead the medicine to be continuously discharged under the condition that the hose head is blocked; in addition, the rear end of the needle handle is sequentially connected with a filter and an injector, and the filter can effectively filter bubbles and impurities in the anesthetic.

Description

Nerve block puncture needle

Technical Field

The utility model relates to a pjncture needle technical field, concretely relates to nerve block pjncture needle.

Background

Local anesthetic is injected into the nerve plexus and around nerve trunk to suspend and block the function of conducting impulse to the center and periphery, so that the disappearance of the sensory and motor functions of local areas is generated, and the nerve block anesthesia is called. Anesthesia of nerve blocks is performed through a puncture needle. At present, puncture needles for nerve block anesthesia in the market have some defects.

For example, the utility model with the patent number of CN208808592U discloses a continuous sacrum anesthesia puncture needle, which comprises a needle handle with an inner cavity, wherein the front end of the needle handle is connected with a remaining needle hose, the rear end of the needle handle can be connected with an injector, the needle handle and the remaining needle hose are communicated with each other, a rubber film is transversely arranged in the inner cavity of the needle handle, the tail end of the injector is connected with a hollow needle core, the free end of the hollow needle core penetrates through the rubber film and penetrates out of the end of the remaining needle hose, a spring tube is connected on the side wall of the needle handle between the rubber film and the front end of the needle handle, and the spring tube is communicated with the; although the puncture needle can continuously administer medicine in the using process, the puncture needle has the following defects: firstly, the simultaneous administration of the rear ends of the spring tube and the needle handle cannot be realized; secondly, because the needle head of the needle core is relatively sharp, when the needle core is inserted into the nerve of a human body, if the needle core is controlled improperly, the needle core is easy to puncture the nerve tissue in the human body; thirdly, after the needle core is inserted into the designated position and the needle core is pulled out, a liquid outlet at the end part of the needle hose is easy to block, and the anesthetic cannot be injected around the nerve of the human body; fourthly, because the ampoule-contained anesthetic contains a small amount of glass fragments, the glass fragments and air bubbles are easy to be sucked into the injector in the process of extracting the anesthetic from the injection, and if the injector is directly connected with the rear end of the needle handle, impurities and air bubbles in the anesthetic cannot be filtered, so that a certain problem exists in nerve block anesthesia; fifth, under the trend of nerve block anesthesia under ultrasound guidance at present, the operation is single, and the requirements of more operation skills cannot be met. Therefore, in order to overcome the above-mentioned shortcomings of the conventional puncture needle, it is a technical problem to be solved to design a nerve block puncture needle which can effectively solve the above-mentioned technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of current nerve block anesthesia pjncture needle, providing a modified nerve block pjncture needle, mainly solving medical personnel and pricking human nervous tissue, the difficult play liquid of needle hose tip jam easily at the propulsion in-process to and can't filter the problem of dosing simultaneously with both ends to the anesthetic.

The utility model discloses a realize through following technical scheme:

the utility model provides a nerve block pjncture needle, includes needle handle, pjncture needle, rubber hose and needle hose, the cavity has been seted up to the inside of needle handle, the right-hand member of cavity is provided with the rubber buffer, rubber hose connects at the cavity lower extreme of rubber buffer left end, and rubber hose is linked together with the cavity, rubber hose's end connection has the syringe pump to connect, needle hose sets up at the left end of needle handle and is linked together with the cavity of needle handle, the pjncture needle runs through whole needle handle setting and the left end setting of pjncture needle is in needle hose's inside, its characterized in that, the left end syringe needle of pjncture needle sets up to circular blunt face, the side opening has been seted up to the tip of needle hose, is located the feed liquor hole;

the right-hand member of needle handle is provided with the needle handle head, the right-hand member of needle handle head is connected with middle cylinder base, the right-hand member of pjncture needle stretches into the inside of middle cylinder base, the right-hand member of middle cylinder base is provided with the connecting pipe, be connected with the filter on the connecting pipe, the right-hand member of filter is connected with the syringe.

As a further arrangement of the above scheme, an external thread is arranged on the outer circumferential surface of the connecting pipe, and a sealing screw cap which is in sealing connection with the external thread is arranged on the connecting pipe; when anesthetic is injected from the end of the rubber hose, the sealing screw cap is connected with the external thread of the connecting pipe, and the rear end of the needle handle can be sealed.

As a further arrangement of the above scheme, the inner wall of the connecting pipe is in a round table shape, the left end of the filter is connected with a tapered insertion pipe connected with the connecting pipe, the right end of the filter is connected with a sleeve, and the inner wall of the sleeve and the inner wall of the connecting pipe are arranged in the same way; the special design of the connecting pipe and the filter can facilitate the disassembly of the filter, and the injector can be directly connected with the connecting pipe.

As a further arrangement of the above scheme, a sealing cap is arranged on the syringe pump joint, and the sealing cap can seal the syringe pump joint in the process of injecting anesthetic from the rear end of the needle handle.

As a further arrangement of the scheme, the surface of the puncture needle is provided with scale marks, and the scale marks can be convenient for medical personnel to observe the depth of the whole puncture needle entering the human body at any time. Has the advantages that:

1. compared with the prior art, the utility model sets the needle head of the puncture needle as a round blunt surface, which can prevent the medical care personnel from puncturing the nerve tissue inside the human body due to improper control in the propelling process; simultaneously, the side hole is formed at the end part of the needle hose, so that the medicine can be continuously discharged under the condition that the end part of the needle hose is blocked, and the defect that the medicine cannot be continuously discharged when the liquid outlet of the needle hose is blocked by the existing nerve blocking needle is effectively overcome.

2. The utility model discloses still set up the feed liquor hole on the pjncture needle that is located the cavity inside, when the pjncture needle inserts the human body and does not extract, can realize utilizing the syringe to dose and be connected with the syringe pump through flexible rubber hose from needle handle right-hand member and dose simultaneously.

3. The utility model discloses still set up middle cylinder base at the right-hand member of needle handle, be connected with filter, syringe in proper order through the connecting pipe, can effectively filter bubble and impurity in the anesthetic that follow the syringe injection into.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of the internal plan structure of the present invention;

FIG. 2 is a top plan view at A in FIG. 1;

fig. 3 is a plan view showing the inside of the puncture needle after the puncture needle and the needle shaft end cap are removed.

The injection needle comprises a needle handle 1, a cavity 101, a puncture needle 2, a liquid inlet hole 201, a round blunt surface 202, a side hole 203, a rubber hose 3, a rubber plug 4, a needle handle end socket 5, a middle cylinder seat 6, a connecting pipe 7, a filter 8, a conical cannula 801, a cannula 802, a syringe 9, a syringe pump connector 10, a sealing screw cap 11, a sealing cap 12, a needle hose 13 and a side hole 131.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying drawings 1 to 3, in conjunction with the embodiments.

Example 1

Embodiment 1 describes a nerve block puncture needle, the main structure of which is similar to the prior art, and mainly comprises a needle handle 1, a puncture needle 2, a rubber hose 3 and a needle hose 13. A cavity 101 is formed in the needle handle 1, a rubber plug 4 is arranged at the right end of the cavity 101, and the cavity 101 at the left end of the rubber plug 4 forms an injection cavity. The rubber hose 3 is connected with the lower end of a cavity 101 at the left end of a rubber plug 4, the rubber hose 3 is communicated with the cavity 101, and the end part of the rubber hose 3 is connected with a syringe pump joint 10. When anesthetic is injected from the tail end of the rubber hose 3, the syringe pump is directly connected, and when the rubber hose 3 is not connected with the syringe pump, a sealing cap 12 is arranged at the outer end of the syringe pump connector 10 for sealing treatment.

The needle hose 13 is arranged at the left end of the needle handle 1, the needle hose 13 is communicated with the cavity 101 of the needle handle 1, the puncture needle 2 penetrates through the whole needle handle 1 to be arranged, the puncture needle 2 at the left end of the needle handle 1 is arranged inside the needle hose 13, the surface of the puncture needle 2 is provided with scale marks, and medical staff can penetrate through the whole puncture needle 2 to enter the position of a human body constantly through the scale marks. The puncture needle 2 at the left end of the cavity 101 is provided with a liquid inlet hole 201, and when the puncture needle 2 is not pulled out of the human body, the drug delivery in two directions can be realized. This design still sets up the left end syringe needle of pjncture needle 2 into circular blunt face 202, has seted up side opening 131 at the tip that needle hose 13 is close to the syringe needle, and when the syringe needle of pjncture needle 2 pushed the human body, the sharp-pointed syringe needle of its circular blunt face 202 can greatly avoid current pjncture needle to puncture human nerve to under the condition of needle hose 13 tip liquid outlet jam, can continue to go out liquid in its side opening 131, thereby accurate injection anesthetic prevents its jam.

In the embodiment, a needle handle sealing head 5 is arranged at the right end of a needle handle 1, a middle cylinder seat 6 is connected with the right end of the needle handle sealing head 5, and the right end of a puncture needle 2 extends into the middle cylinder seat 6. The right end of the middle cylinder seat 6 is provided with a connecting pipe 7, the connecting pipe 7 is connected with a filter 8, the filter 8 and the connecting pipe 7 are designed integrally, the filter 8 in the embodiment is a common liquid medicine filter in the market, and filter paper or filter cotton is arranged in the filter 8. Finally, a syringe 9 is connected to the right end of the filter 8.

Example 2

Embodiment 2 is a further improvement on embodiment 1, and this embodiment will not be described again for the same structural parts. The improvement is that:

in addition, the filter 8 and the injector 9 in this embodiment are both detachably connected. Specifically, the inner wall of the connection pipe 7 is formed in a circular truncated cone shape, the left end of the filter 8 is connected to a tapered insertion pipe 801 connected to the connection pipe 7, the right end of the filter 8 is connected to a sleeve 802, and the inner wall of the sleeve 802 is formed in the same manner as the inner wall of the connection pipe 7. When the anesthetic extracted by the syringe 9 is filtered by the separate filter 8 in the anesthetic puncture package, the filter 8 can be removed from the connecting tube 7, and the syringe 9 is directly inserted into the connecting tube 7 to realize injection.

Finally, when the anesthetic solution is continuously injected using the rubber hose 3, the puncture needle 2 is removed and the filter 8 and the syringe 9 are simultaneously removed from the connection tube 7, a sealing screw cap 11 is provided at the end of the connection tube 7, and an external thread 701 is provided on the outer circumferential surface of the connection tube 7, the end of which is sealed by screwing the sealing screw cap 11.

Three specific methods of use for example 2 are as follows:

firstly, a sealing screw cap 11 is in threaded connection with an external thread 701 on a connecting pipe 7, so that the right end of a needle handle 1 is sealed, an injector 9 is connected to a syringe pump connector 10, then a puncture needle 2 is inserted into the human body, when the puncture needle 2 reaches a target position, the injector 9 is pushed to administer medicine, medicine enters the puncture needle 2 from a liquid inlet hole 201 on the puncture needle 2, and the medicine is discharged from the needle head part of the puncture needle 2 because the right end of the puncture needle 2 is in a sealed state; then the puncture needle 2, the needle handle end enclosure 5, the middle cylinder seat 6, the connecting pipe 7 and the sealing screw cap 11 are pulled out together, due to the special property of the rubber plug 4, the inside of the cavity 101 is in a sealing state (refer to the attached drawing 3), the syringe 9 is taken down, and the injection pump (not shown in the drawing) is connected with the injection pump interface 10 to realize continuous medicine injection.

Secondly, connecting a sealing cap 12 with a syringe pump connector 10, sealing the rubber hose 3, sequentially connecting a syringe 9 and a filter 8 with a connecting pipe 7, then inserting the puncture needle 2 into the human body, and pushing the syringe 9 to inject medicine when the puncture needle 2 reaches a target position; then the puncture needle 2, the needle handle end enclosure 5, the middle cylinder seat 6, the connecting pipe 7 and the sealing screw cap 11 are pulled out together, the sealing cap 12 (refer to the attached figure 3) is removed, and the injection pump connector 10 is connected with an injection pump to realize continuous medicine injection.

Thirdly, two syringes 9 are taken, one syringe is pumped into the normal saline, the other syringe is pumped into the local anesthetic, the syringe 9 pumped into the normal saline is connected with the filter 8, and the filter 8 is connected to the connection tube 7, at which time the assistant can connect the syringe 9 into which the local anesthetic agent is drawn to the syringe pump adapter 10, the physiological liquid medicine can be injected in the process of pushing the puncture needle 2, the needle point position is determined, the physiological saline is stopped to be injected after the needle point of the puncture needle 2 reaches the target position, then the injector 9 which pumps the local anesthetic is pushed to inject the local anesthetic into the target position, finally, the injector on the joint of the injection pump 10 is pulled out and connected with the injection pump, simultaneously, the puncture needle 2, the needle handle end enclosure 5, the middle cylinder seat 6, the connecting pipe 7, the filter 8 and the injector 9 are pulled out together, and the anesthetic is continuously injected through the injection pump 10.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a nerve block pjncture needle, includes needle handle (1), pjncture needle (2), rubber hose (3) and needle hose (13), cavity (101) have been seted up to the inside of needle handle (1), the right-hand member of cavity (101) is provided with rubber buffer (4), cavity (101) lower extreme at rubber buffer (4) left end is connected in rubber hose (3), and rubber hose (3) are linked together with cavity (101), the end connection of rubber hose (3) has injection pump connector (10), needle hose (13) set up the left end at needle handle (1) and be linked together with the cavity of needle handle (1), pjncture needle (2) run through the left end setting of whole needle handle (1) and pjncture needle (2) and set up the inside at needle hose (13), its characterized in that, the left end syringe needle of pjncture needle (2) sets up to circular blunt face (202), a side hole (131) is formed in the end part of the needle hose (13), and a liquid inlet hole (201) is formed in the puncture needle (2) positioned at the left end of the cavity (101);

the right-hand member of needle handle (1) is provided with needle handle head (5), the right-hand member of needle handle head (5) is connected with middle cylinder base (6), the right-hand member of pjncture needle (2) stretches into the inside of middle cylinder base (6), the right-hand member of middle cylinder base (6) is provided with connecting pipe (7), be connected with filter (8) on connecting pipe (7), the right-hand member of filter (8) is connected with syringe (9).

2. The nerve block puncture needle according to claim 1, wherein an external thread (701) is provided on an outer circumferential surface of the connection tube (7), and a sealing cap (11) sealingly connected to the external thread (701) is provided on the connection tube (7).

3. The nerve block puncture needle according to claim 1 or 2, wherein the inner wall of the connecting tube (7) is in a truncated cone shape, the left end of the filter (8) is connected with a tapered insertion tube (801) connected with the connecting tube (7), the right end of the filter (8) is connected with a sleeve (802), and the inner wall of the sleeve (802) is in the same arrangement with the inner wall of the connecting tube (7).

4. The nerve block puncture needle according to claim 1, wherein a sealing cap (12) is provided on the syringe pump adapter (10).

5. The nerve block puncture needle according to claim 1, characterized in that the surface of the puncture needle (2) is provided with scale marks.