CN216985058U

CN216985058U - Needle knife instrument

Info

Publication number: CN216985058U
Application number: CN202121128456.8U
Authority: CN
Inventors: 黄莹
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2022-07-19
Anticipated expiration: 2031-05-24

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to an acusector instrument. The needle-knife instrument comprises a knife body, a handle and an electrode lead, wherein a transfusion channel is arranged in the knife body, a developing structure is arranged on the outer surface of the knife body, a first through hole and a second through hole are formed in the handle, part of the knife body is installed in the first through hole, part of the knife body externally connected with a drug delivery pipe is installed in the second through hole, the treatment end, far away from the handle, of the knife body is of a wedge-shaped structure, an electrical stimulation block is arranged in the middle section of a cutting part and can receive electrical stimulation and transmit the electrical stimulation to human tissues, the cutting part is of a blade-shaped structure and is of a pyramid-shaped structure, two opposite sides of the pyramid-shaped structure are sharp, and the electrical stimulation sent by a nerve electrical stimulator is transmitted to the human tissues through the electrode lead, the needle-knife body and the pyramid-shaped structure block, so that nerve muscles can be stimulated to generate reactions. Through using the needle knife instrument among this technical scheme, integrated multiple medical function in an organic whole, enlarged the treatment scope of injection needle sword, promoted needle sword treatment effect.

Description

Needle knife instrument

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to an acusector instrument.

Background

The small needle knife is a medical appliance used for stimulating or cutting the subcutaneous or muscle deep tissue of a human body. Generally, when the small needle knife is used for stimulation cutting and other operations, a patient feels pain and obviously needs local anesthesia, or when a local lesion part needs drug treatment, liquid medicine is needed for auxiliary treatment. The blind probing treatment of the small needle knife has certain potential safety hazards, under possible conditions, the nerve vessels need to be distinguished by ultrasonic development so as to achieve target point treatment, and particularly when the treatment end of the needle knife body is provided with a special enhanced developing structure, the accuracy of the treatment under the ultrasonic guidance can be improved, the mistaken damage is avoided, and the safety of the needle knife treatment is improved. In order to avoid nerve injury, the nerve stimulator can identify motor nerves and sensory nerves, ensure that the nerves are avoided during operation treatment, or perform specific treatment on the nerves.

The stimulation and cutting of the needle knife, the target injection of drugs, the enhanced development of the needle or knife under the guidance of ultrasound, nerve identification, specific treatment and the like are technical means for accurately, safely and efficiently treating soft tissue diseases, the existing instrument can only realize the combination of single function or a few functions, and the needle knife instrument is the instrument equipment integrating the multifunctional technical means.

Disclosure of Invention

The utility model aims to at least solve the problem that the prior art can not realize a needle knife instrument which integrates the stimulation and cutting of a needle knife, the target injection of medicines, the enhanced development of the needle knife under ultrasound, the nerve identification and the special treatment. The purpose is realized by the following technical scheme:

a first aspect of the utility model provides a needle-knife apparatus comprising:

the cutter body is internally provided with a liquid conveying channel, and the outer surface of the cutter body is provided with a developing structure;

the cutter comprises a cutter body and a handle, wherein a first through hole and a second through hole are formed in the handle, the first through hole is communicated with the second through hole, and part of the cutter body is arranged in the first through hole;

an external administration tube, wherein part of the body of the external administration tube is arranged in the second through hole, and the external administration tube is communicated with the infusion channel;

the treatment end, far away from the handle, of the cutter body is of a wedge-shaped structure, the cutting part of the wedge-shaped structure is arranged far away from the handle, the middle section of the cutting part is provided with an electrical stimulation block, the tip end of the electrical stimulation block is arranged far away from the handle, and the electrical stimulation block can receive electrical stimulation and transmit the electrical stimulation to human tissues;

the cutting part is of a blade-shaped structure;

the electrical stimulation block is of a pyramid structure, and two opposite sides of the pyramid structure are sharp;

one end of the electrode lead is used for being connected with the nerve electrical stimulator, and the other end of the electrode lead is wound on the cutter body positioned outside the handle.

By using the needle knife instrument in the technical scheme, the external administration tube positioned in the second through hole can be matched with the transfusion channel of the knife body, thereby achieving the purpose of liquid medicine delivery, improving the convenience of operation, meanwhile, the developing structure is arranged on the outer surface of the knife body, the part of a patient can be clearly developed under the guidance of ultrasonic wave during operation treatment, in addition, the electrical stimulation block connected with the electrode lead through the knife body can be matched with a nerve electrical stimulator to carry out nerve detection, so that the nerve tissue is avoided, further, the operation cutting is realized, the protection on the tissue of the patient is improved, and the safety of the operation is enhanced, the needle knife instrument integrates the functions of nerve stimulation, identification, ultrasonic development, cutting, liquid medicine supply and the like, a foundation is provided for the safety, accuracy, high efficiency and convenience of the operation, and the treatment range of the injection needle knife is expanded to a great extent, the efficiency and the effect of the needle knife treatment are generally improved.

In addition, the needle knife instrument according to the utility model can also have the following additional technical characteristics:

in some embodiments of the present invention, the developing structure includes a plurality of annular grooves, and the plurality of annular grooves are spaced along an axial direction of the cutter body.

In some embodiments of the present invention, an infusion tube for transporting the liquid medicine is disposed in the infusion channel, and the infusion tube is communicated with the external administration tube.

In some embodiments of the utility model, the vertical section of the infusion tube is D-shaped.

In some embodiments of the utility model, an end of the infusion tube proximate to the electrical stimulation block extends to a side of the sloped end of the infusion channel proximate to the electrical stimulation block.

In some embodiments of the utility model, the outer diameter of the blade body is larger than the inner diameter of the circumscribed administration tube, and the outer diameter of the blade body is smaller than the outer diameter of the circumscribed administration tube.

In some embodiments of the present invention, the handle is provided with a wire groove along a central line direction of the first through hole at both side ends of the handle opposite to the first through hole, and a middle portion of the electrode wire is mounted in the wire groove.

In some embodiments of the present invention, the needle-knife instrument further includes a fixing cover, the fixing cover is sleeved outside the knife body and can abut the electrode lead on the handle.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

fig. 1 schematically shows an overall structural view of a needle knife instrument according to an embodiment of the present invention;

FIG. 2 is a schematic sectional view of the needle knife instrument of FIG. 1;

FIG. 3 is a schematic structural view of a knife body of the acusector apparatus of FIG. 1;

FIG. 4 is a schematic structural view of the treatment end of the blade body of the acusector apparatus of FIG. 3;

FIG. 5 is a schematic structural diagram of an electrical stimulation block of a first embodiment of a cutting portion of a blade body of the needle-knife apparatus of FIG. 3;

fig. 6 is a schematic structural diagram of another view angle of the electrical stimulation block of the first embodiment of the cutting part of the knife body of the needle knife instrument in fig. 3.

10: cutter body, 11: annular groove, 12: treatment end, 121: cutting section 1211: electrical stimulation block, 13: an infusion tube, 14: infusion path, 141: a beveled end;

20: handle, 21: wire groove, 22: a second through hole;

30: an external administration tube;

40: an electrode lead;

50: and (5) fixing the cover.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Fig. 1 schematically shows an overall structural view of a needle knife instrument according to an embodiment of the present invention. As shown in fig. 1, the present invention provides a needle knife apparatus. The needle knife instrument comprises a knife body 10, a handle 20, an external administration tube 30 and an electrode lead 40, wherein an infusion channel 14 is arranged in the knife body 10, a developing structure is arranged on the outer surface of the knife body 10, a first through hole and a second through hole 22 are arranged in the handle 20, the first through hole is communicated with the second through hole 22, part of the knife body 10 is arranged in the first through hole, part of the external administration tube 30 is arranged in the second through hole 22, the external administration tube 30 is communicated with the infusion channel 14, a treatment end 12, far away from the handle 20, of the knife body 10 is of a wedge-shaped structure, a cutting part 121 of the wedge-shaped structure is arranged far away from the handle 20, an electrical stimulation block 1211 is arranged in the middle section of the cutting part 121, the tip of the electrical stimulation block 1211 is arranged far away from the handle 20, the electrical stimulation block 1211 can receive electrical stimulation and transmit the electrical stimulation to human tissues, the cutting part 121 is of a blade type structure, the electrical stimulation block 1211 is of a pyramid structure, and two opposite sides of the pyramid structure are sharp, one end of the electrode wire 40 is used for connecting with the nerve electrical stimulator, and the other end of the electrode wire 40 is wound around the cutter body 10 positioned outside the handle 20.

By using the needle knife instrument in the technical scheme, the external administration tube 30 positioned in the second through hole 22 can be matched with the infusion channel 14 of the knife body 10, thereby achieving the purpose of delivering liquid medicine, improving the convenience of operation, meanwhile, the outer surface of the knife body 10 is provided with the developing structure, the part of a patient can be clearly developed under the guidance of ultrasonic wave during operation treatment, in addition, the electrical stimulation block 1211 connected with the electrode lead 40 through the knife body 10 can be matched with the electrical nerve stimulator to carry out the detection of nerves, so that the nerve tissue is avoided, the operation cutting is further realized, the protection of the tissue of the patient is improved, and the safety of the operation is enhanced, the needle knife instrument integrates the functions of nerve stimulation, identification, ultrasonic development, cutting, liquid medicine supply and the like, and provides a foundation for the safety, accuracy, high efficiency and convenience of the operation, the treatment range of the injection needle knife is enlarged to a great extent, and the efficiency and the effect of the needle knife treatment are generally improved.

Specifically, the external administration tube 30 of the present invention may be a syringe.

Specifically, the inner diameter of the tube body structure of the cutter body 10 in the present invention is 0.8-2mm, so that the external administration tube 30 can be matched to safely supplement the liquid medicine to the patient, thereby improving the safety of the patient.

Specifically, in the utility model, the matching modes of the first through hole and the cutter body 10, the second through hole 22 and the external administration tube 30 are interference connection modes, so that the external administration tube 30 and the cutter body 10 can be fully fixed, the respective stability is improved, and the stability of the operation is improved.

Specifically, the inner surface and the outer surface of the cutter body 10 are respectively provided with an electric insulation coating, the cutter body 10 is connected with the electrode lead 40, the electrode lead 40 is externally connected with a nerve electric stimulator, electric stimulation directly reaches a target position of human tissue through the electrode lead 40, the cutter body 10 and the electric stimulation block 1211 and returns to the electric stimulator along an electric circuit, and a closed-loop circuit can be formed in the period, so that the functions of nerve stimulation and nerve identification are achieved.

In some embodiments of the present invention, as shown in fig. 3, the developing structure includes a plurality of annular grooves 11, and the annular grooves 11 can generate diffuse reflection echoes on the annular grooves 11 under the guidance of ultrasound during an operation, so as to generate a development of a patient part, so that the operation can be more clearly assisted, and the safety is improved. Meanwhile, the plurality of annular grooves 11 are arranged at intervals along the axis direction of the cutter body 10, so that the developing effect is clearer and more stable, and the operation is more accurate and safer.

Specifically, the plurality of annular grooves 11 in the present embodiment are arranged at intervals, and include a uniform interval arrangement structure and a non-uniform interval arrangement structure, which can provide an ultrasonic imaging function when an operator performs an operation.

Particularly, in the utility model, the developing structure can also be a spiral groove, so that the needle knife instrument can perform developing operation in the treatment process, and the operation accuracy can be improved due to the structure of the spiral grooves. The developing structure of the utility model can also have various structural forms, the utility model is not illustrated, and the developing effect of the utility model realized by the structure of the developing structure belongs to the protection scope of the utility model.

In some embodiments of the present invention, an infusion tube 13 for transporting the liquid medicine is disposed in the infusion channel 14, and the infusion tube 13 is communicated with the external administration tube 30. The infusion tube 13 can ensure the cleanness of the external administration tube 30 in the administration process, and the safety of the whole needle-knife body 10 is improved.

In some embodiments of the present invention, as shown in fig. 4, the infusion tube 13 has a D-shaped vertical cross-section. Specifically, the infusion tube 13 can be configured to have any other shape, and any structure and shape of the infusion tube 13 for transporting the medicine inside the cutter body 10 are within the protection scope of the present invention.

In some embodiments of the present invention, as shown in fig. 4, one end of the infusion tube 13 near the electrical stimulation block 1211 extends to a side of the beveled end 141 of the infusion channel 14 near the electrical stimulation block 1211. The infusion tube 13 in this embodiment is a D-shaped tube, that is, the inner hole of the cutter body 10 is a D-shaped hole, the inner hole of the D-shaped tube is located in the inner hole of the cutter body 10, one end surface of the D-shaped tube close to the electrical stimulation block 1211 is tangent to the inclined end 141 of the cutter body 10, that is, one end surface of the D-shaped tube close to the electrical stimulation block 1211 is arranged at an angle with the inclined end 141 of the cutter body 10, so that the function of extending the administration channel can be achieved, and the outlet of the medical solution is closer to the electrical stimulation block 1211 for cutting and electrical stimulation.

In some embodiments of the present invention, as shown in fig. 2, the outer diameter of the cutter body 10 is larger than the inner diameter of the circumscribed administration tube 30, and the outer diameter of the cutter body 10 is smaller than the outer diameter of the circumscribed administration tube 30. Therefore, the needle knife can be ensured not to penetrate through the external administration tube 30 when being assembled with the first through hole, and further instability of liquid medicine conveying is caused, and operation such as error of operation is caused.

Specifically, in the present invention, the outer diameter of the external administration tube 30 may be larger than the inner diameter of the cutter body 10, and the outer diameter of the external administration tube 30 may be smaller than the outer diameter of the cutter body 1010. This also ensures that the external administration tube 30 does not protrude into the needle knife when assembled with the second through hole 22, which may cause instability in liquid medicine delivery.

Specifically, as shown in fig. 5 and 6, the electrical stimulation block 1211 has a pyramid structure, and the tip of the pyramid can be well matched with the cutting part 121 to cut the part of the patient, so that the cutting efficiency is improved, and the problem of pain of the patient caused by long cutting time is avoided.

In some embodiments of the present invention, as shown in fig. 1, both side ends of the handle 20 opposite to both sides of the first through hole are provided with wire grooves 21 arranged along the center line direction of the first through hole, and the middle portion of the electrode wire 40 is mounted in the wire groove 21. When the operation is performed, the electrode lead 40 is not touched by the operator, so that the detection effect of the electrical stimulation 1211 on the knife body 10 is affected, and the stability of the overall structure of the needle knife instrument and the accuracy of the operation are improved.

In some embodiments of the present invention, as shown in fig. 1, the needle-knife instrument further comprises a fixing cover, which is sleeved outside the knife body 10 and can abut the electrode wire 40 on the handle 20. The fixing cover can abut the electrode wire 40 wound on the cutter body 10 against one end of the handle 20, so that the fixing structure of the electrode wire 40 is ensured, and meanwhile, the other end and the middle part of the electrode wire 40 can be completely protected by matching with the wire groove 21, so that the stability of the operation process is improved, and the service life of the electrode wire 40 is prolonged.

Specifically, the electrical stimulation block 1211 and the cutter body 10 in the present invention are both made of a medical metal material, and stainless steel is used in this embodiment. The electrical stimulation block 1211 can function as an electrode point, and when an operation is performed, the electrical stimulation block 1211 connected with the electrode lead 40 can be matched with the nerve electrical stimulator connected with the electrode lead 40 to detect nerves, so that the nerve tissue is avoided, the surgical incision is realized, the tissue of a patient is protected, and the safety of the operation is enhanced. The electrostimulation block 1211 in the utility model has no coating, which is convenient for the smooth of microcurrent and the detection of nerves.

Specifically, the whole needle-knife body 10 in the embodiment has scale marks, so that the size adjustment of a worker during data recording and operation is facilitated, and the portability and the accuracy are improved.

Specifically, the assembly process of the needle knife instrument comprises the following steps: the external administration tube 30 is first assembled into the second through hole 22 of the handle 20, and then one end of the cutter body 10 having a non-wedge structure is fitted into the first through hole. Meanwhile, the middle part of the electrode lead 40 is engaged with the lead groove 21, and the other end of the electrode lead 40 is wound around the cutter body 10 outside the handle 20. Finally, the fixing cover is sleeved on one end of the wedge-shaped structure of the cutter body 10, and the electrode lead 40 is abutted against the handle 20.

While the utility model has been described with reference to specific preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the following claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An acusector apparatus, comprising:

the external administration tube is arranged on the second through hole, and part of the body of the external administration tube is communicated with the infusion channel;

the treatment end of the cutter body, which is far away from the handle, is of a wedge-shaped structure, the cutting part of the wedge-shaped structure is arranged far away from the handle, the middle section of the cutting part is provided with an electrical stimulation block, the tip of the electrical stimulation block is arranged far away from the handle, and the electrical stimulation block can receive electrical stimulation and transmit the electrical stimulation to human tissues;

the cutting part is of a blade-shaped structure;

2. The acupotome apparatus of claim 1, wherein the developing structure comprises a plurality of annular grooves spaced along an axis of the blade body.

3. The needle knife apparatus of claim 1, wherein a liquid transport tube for transporting the liquid medicine is arranged in the liquid transport channel, and the liquid transport tube is communicated with the external administration tube.

4. The needle knife apparatus of claim 3, wherein the vertical section of the infusion tube is D-shaped.

5. The needle knife apparatus of claim 3, wherein an end of the infusion tube adjacent to the electrical stimulation block extends to a side of the sloped end of the infusion channel adjacent to the electrical stimulation block.

6. The acusector apparatus of claim 1, wherein the outer diameter of the blade body is larger than the inner diameter of the circumscribed administration tube, and the outer diameter of the blade body is smaller than the outer diameter of the circumscribed administration tube.

7. The needle-knife instrument of claim 1, wherein the handle is provided with a wire groove along the direction of the center line of the first through hole at the side end opposite to the two sides of the first through hole, and the middle part of the electrode wire is installed in the wire groove.

8. The acusector apparatus of claim 1, further comprising a fixing cover, wherein the fixing cover is sleeved outside the knife body and can abut the electrode wire on the handle.