CN113288339A

CN113288339A - Needle knife device

Info

Publication number: CN113288339A
Application number: CN202110566414.0A
Authority: CN
Inventors: 黄莹
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2021-08-24

Abstract

The invention belongs to the technical field of medical equipment, and particularly relates to a needle knife device. The needle knife device comprises a knife body, a handle and a detection assembly, wherein a developing structure is arranged on the outer side surface of the knife body, a first channel is arranged inside the knife body, a second channel is arranged in the handle, the knife body is partially arranged in the second channel, the detection assembly comprises a probe, a positioning cap and an electrode lead, at least part of the probe penetrates through the second channel and the first channel, one end of the handle, which is far away from the knife body, is detachably connected with the positioning cap, one end of the probe is connected with the positioning cap and is connected with the electrode lead, and the other end of the probe extends out of the first channel. Through using the needle knife device among this technical scheme, function in an organic whole such as integrated nerve stimulation and discernment, ultrasonic development, cutting, liquid medicine supply provides the basis for safety, high efficiency and the facility of operation, and the cooperation between the subassembly has promoted the maneuverability and the convenience of needle knife device simultaneously.

Description

Needle knife device

Technical Field

The invention belongs to the technical field of medical equipment, and particularly relates to a needle knife device.

Background

The utility model relates to a needle knife instrument in nerve, which is a medical instrument used for cutting and treating the subcutaneous or deep muscle of a human body.

Generally, the cutting operation is performed by the knife body of the needle knife apparatus, and a liquid medicine is added to the medicine supplying element during the cutting operation to perform an auxiliary treatment. In some specific cases, an operation of connecting a developing device to perform ultrasonic development is also required. Meanwhile, in order to ensure the safety of the surgical treatment, a stimulating electrode is added to determine the nerve position, so that the nerve position is convenient to avoid during the surgical operation.

The prior art can only realize the functions of a single function or a few combined needle-knife instruments, and cannot realize the needle-knife instrument with multiple functions.

Disclosure of Invention

The invention aims to at least solve the problem of single medical function of the existing needle-knife instrument. The purpose is realized by the following technical scheme:

a first aspect of the present invention provides a needle-knife device comprising:

the developing device comprises a cutter body, a developing structure and a developing device, wherein the developing structure is arranged on the outer side surface of the cutter body, and a first channel is arranged inside the cutter body;

the handle is internally provided with a second channel, and the cutter body part is arranged in the second channel;

the detection assembly comprises a probe, a positioning cap and an electrode lead, at least part of the probe penetrates through the second channel and the first channel, one end of the handle, which is far away from the cutter body, is detachably connected with the positioning cap, one end of the probe is connected with the positioning cap and is connected with the electrode lead, and the other end of the probe extends out of the first channel.

By using the needle knife device in the technical scheme, the knife body can cut the part to be treated, and the developing structure is arranged at the outer side of the knife body, the part of a patient can be developed under the guidance of ultrasonic wave during treatment, and the second channel in the handle can carry out administration operation during treatment, wherein the handle is detachably connected with the positioning cap, when the nerve detection is needed during the treatment, the probe can penetrate into the knife body and extend out of the knife body only by matching the detection component with the handle, so that the electrode lead can be matched to carry out the nerve detection, the nerve tissue is convenient to avoid, the surgical cutting is further realized, and the protection on the tissue of the patient is improved. Meanwhile, the cooperation between the components improves the operability and convenience of the needle knife device.

In addition, the needle knife device according to the invention can also have the following additional technical features:

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, the second channel includes a fixing portion, an adjusting portion and a drug delivery portion, the adjusting portion is located between the drug delivery portion and the fixing portion, the fixing portion is adapted to the cutter body, and the drug delivery portion is used for inputting drug solution.

In some embodiments of the present invention, a diameter dimension of the fixing portion is equal to or smaller than a diameter dimension of the regulating portion.

In some embodiments of the present invention, the handle includes a holding portion, a positioning portion and a connecting portion, the positioning portion is located between the holding portion and the connecting portion, the holding portion is used for holding the needle-knife device by an operator, and the connecting portion is detachably connected to the positioning cap.

In some embodiments of the invention, the connecting portion has an outer diameter dimension smaller than an outer diameter dimension of the hand-held portion.

In some embodiments of the present invention, the positioning cap includes a bottom portion, a protruding portion, and an annular portion, the protruding portion and the annular portion are both connected to an upper surface of the bottom portion, an end of the annular portion away from the bottom portion abuts against the positioning portion, and the protruding portion is located inside the second channel.

In some embodiments of the invention, a through hole is formed in the protruding portion, and the through hole is matched with the probe.

In some embodiments of the invention, the end of the blade body remote from the handle is a first wedge-shaped structure.

In some embodiments of the invention, the other end of the probe is a second wedge structure.

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 invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

fig. 1 schematically shows an overall assembly structure diagram of a needle-knife device according to an embodiment of the present invention;

FIG. 2 is a schematic view of the assembly process of the needle knife assembly of FIG. 1;

FIG. 3 is a schematic view of the handle and the blade body of the needle knife device shown in FIG. 1;

FIG. 4 is a schematic cross-sectional view of the handle and blade body of the needle-knife device of FIG. 3 in cooperation with each other;

fig. 5 is a schematic structural view of a probe assembly of the needle knife device of fig. 1.

10: cutter body, 11: annular groove, 12: first wedge structure, 13: a first channel;

20: handle, 21: hand-held portion, 22: positioning section, 23: connecting part, 24: a second channel;

30: detection assembly, 31: a probe, 32: positioning cap, 321: bottom, 322: projection, 323: annular portion, 33: and an electrode lead.

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 described 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 assembly structure of a needle-knife device according to an embodiment of the present invention. As shown in fig. 1, the present invention proposes a needle-knife device. The needle knife device comprises a knife body 10, a handle 20 and a detection assembly 30, wherein a developing structure is arranged on the outer side surface of the knife body 10, a first channel 13 is arranged inside the knife body 10, a second channel 23 is arranged inside the handle 20, the knife body 10 is partially arranged in the second channel 23, the detection assembly 30 comprises a probe 31, a positioning cap 32 and an electrode lead 33, at least part of the probe 31 penetrates through the second channel 24 and the first channel 13, one end, far away from the knife body 10, of the handle 20 is detachably connected with the positioning cap 32, one end of the probe 31 is connected with the positioning cap 32 and is connected with the electrode lead 33, and the other end of the probe 31 extends out of the first channel 13.

By using the needle knife device in the technical scheme, the knife body 10 can cut the part to be treated, and the developing structure is arranged on the outer side of the knife body 10, the part of a patient can be developed under the guidance of ultrasonic waves during treatment, the second channel 24 in the handle 20 can carry out administration operation during treatment, wherein the handle 20 is detachably connected with the positioning cap 32, when the nerve detection is needed during the treatment, the probe 31 can penetrate into the knife body 10 and extend out of the knife body 10 only by matching the detection component 30 with the handle 20, so that the nerve detection can be carried out by matching the electrode lead 33, the nerve tissue is avoided, the surgical cutting is further realized, and the protection of the tissue of the patient is improved High efficiency and convenience provide a foundation, while cooperation between the components improves the operability and convenience of the needle-knife device.

In some embodiments of the present invention, as shown in fig. 1, the developing structure includes a plurality of annular grooves 11, and the plurality of annular grooves 11 are spaced apart from each other in an axial direction of the cutter body 10. During operation, diffuse reflection echoes can be generated on the annular groove 11 through ultrasonic guidance, so that the development of the patient part is generated, the operation can be assisted, and the reliability is improved. In addition, a plurality of annular grooves 11 are arranged at intervals along the axial direction of the cutter body 10, so that the developing effect becomes clear and stable, and the observation and analysis of operators are facilitated.

Specifically, the developing structure can also be a spiral groove, so that the needle knife device can be developed in the treatment process, and the precision of operation can be improved due to the structure of the spiral grooves. The developing structure of the needle knife device can be in various structural forms, the development structure is not listed, and the development effect realized by the developing structure belongs to the protection scope of the invention.

In some embodiments of the present invention, as shown in fig. 4, the second channel 24 includes a fixing portion, an adjusting portion and a drug delivery portion, the adjusting portion is located between the drug delivery portion and the fixing portion, the fixing portion is adapted to the cutter body 10, and the drug delivery portion is used for inputting drug solution. Wherein, the cooperation relation of fixed part and cutter body 10 is interference fit, can fix cutter body 10 in the fixed part, and then is convenient for promote the steadiness of cutter body 10 in follow-up operation process.

In some embodiments of the present invention, as shown in fig. 4, the diameter size of the fixing portion is equal to or smaller than the diameter size of the regulating portion. This enables the cutter body 10 to be moved in the axial direction position in the second passage 24, and the movement space is the axial length of the adjustment portion. Because the fixed part and the cutter body 10 are in interference fit, when the length of the cutter body 10 exposed out of the handle 20 needs to be adjusted by an operator, the cutter body 10 only needs to be moved into the adjusting part until the required position is reached, so that the operation portability of the operator can be improved, and the operation efficiency of an operation is indirectly improved.

In some embodiments of the present invention, as shown in fig. 3, the handle 20 includes a handheld portion 21, a positioning portion 22 and a connecting portion 23, the positioning portion 22 is located between the handheld portion 21 and the connecting portion 23, and the positioning portion 22 can cooperate with the positioning cap 32 to limit the position of the detecting assembly 30, so that when the positioning portion 22 abuts against the positioning cap 32, the other end of the probe 31 just extends out of the end surface of the first channel 13, which is far away from one end of the handle 20, so as to facilitate the detecting operation of the operation. The handheld portion 21 is used for an operator to hold the needle-knife device, and two side faces of the handheld portion 21, which are opposite to the axis of the second channel 24, are of a curve structure in the embodiment, so that the handheld portion is closer to the shape of the operator to hold the needle-knife device, and the comfort level of the operator is improved. Connecting portion 23 and locating cap 32 are detachable to be connected, when needing the neural detection during the treatment, only need to cooperate with handle 20 with detection subassembly 30, just can penetrate probe 31 in cutter body 10 and stretch out the terminal surface of the one end that first passageway 13 kept away from handle 20, cooperate electrode wire 33 like this and can carry out nervous detection, be convenient for avoid neural tissue, and then realize the operation cutting, improved the protection to patient's tissue.

In some embodiments of the present invention, as shown in fig. 3, the connecting portion 23 has an outer diameter dimension smaller than that of the hand-held portion 21. Therefore, the positioning part 22 abuts against the positioning cap 32, and the positioning cap 32 is axially limited, so that the other end of the probe 31 just extends out of the end face of the first channel 13 far away from one end of the handle 20 when the positioning cap 32 is matched with the handle 20, and the detection operation of the operation is facilitated.

In some embodiments of the present invention, as shown in fig. 5, the positioning cap 32 includes a bottom 321, a protruding portion 322, and an annular portion 323, the protruding portion 322 and the annular portion 323 are both connected to the upper surface of the bottom 321, one end of the annular portion 323 away from the bottom 321 abuts against the positioning portion 22, and the protruding portion 322 is located inside the second channel 24. In this embodiment, the annular portion 323 is sleeved outside the connecting portion 23 and abuts against the positioning portion 22, and the protruding portion 322 is located inside the second channel 24, so that the connecting portion 23 does not interfere with the protruding portion 322 and the annular portion 323 while the positioning cap 32 is positioned in a matching manner with the connecting portion 23, thereby avoiding that the matching operation of the handle 20 and the positioning cap 32 cannot be completed.

Specifically, in the present invention, the connecting portion 23 is provided with a first clamping block, the inner wall of the annular portion 323 is provided with a second clamping block, and the first clamping block is adapted to the second clamping block, so that the positioning cap 32 and the handle 20 can be connected by a snap fit, thereby positioning the probe 31 of the detection assembly 30.

Specifically, in the present invention, the connecting portion 23 is provided with an external thread, the inner wall of the annular portion 323 is provided with an internal thread, and the external thread is matched with the internal thread, so that the positioning cap 32 and the handle 20 can be connected by a thread, and the probe 31 of the detecting assembly 30 can be positioned.

In some embodiments of the present invention, as shown in fig. 5, a through hole is formed in the protrusion 322, and the through hole is adapted to the probe 31. In this embodiment, the probe 31 and the through hole are connected in an interference fit manner, so that the stability of the probe 31 during the operation can be ensured.

In some embodiments of the present invention, the end of the knife body 10 away from the handle 20 is a first wedge structure 12. The first wedge-shaped structure 12 can form a sharp knife tip at the head of the knife body 10, so that the part to be treated can be cut quickly in the treatment process, and the efficiency of the operation is improved.

In some embodiments of the present invention, the other end of the probe 31 is a second wedge structure. When the operation of carrying out the neural detection, because the other end of probe 31 is the second wedge structure, the top of probe 31 is sharp-pointed form promptly, can cooperate cutter body 10 to reach the purpose of cutting together, because probe 31 connects electrode wire 33, can also play the function of neural detection simultaneously, has promoted the suitability.

Specifically, in the invention, one end of the electrode lead 33 is connected with the probe 31, and the other end is connected with the nerve electrical stimulator, so that the position of the nerve can be determined by matching the probe 31 and the nerve electrical stimulator, the nerve tissue can be avoided conveniently during the operation, the operation cutting is further realized, and the protection of the tissue of a patient is improved.

Specifically, in the present invention, when the operation of cutting, administration and visualization is required, the cutter body 10 and the handle 20 of the present invention are combined to realize the corresponding function, wherein the cutter body 10 can realize the cutting function of the portion to be treated, the visualization structure outside the cutter body 10 can visualize the portion of the patient under the guidance of the ultrasonic wave, and the administration portion of the second channel 24 located in the handle 20 can input the liquid medicine into the needle-knife device, thereby completing the function of supplying the liquid medicine during the operation.

When the operation of the nerve detection is required to be performed in the operation, only the probe 31 of the detection assembly 30 needs to sequentially pass through the second channel 24 and the first channel 13, the annular part 323 of the positioning cap 32 of the detection assembly 30 can be matched with the positioning part 22 of the handle 20, and then the limitation of the probe 31 is realized, namely when the positioning part 22 of the handle 20 is abutted against the annular part 323 of the positioning cap 32, the other end of the probe 31 just extends out of the end face of the first channel 13, which is far away from one end of the handle 20, so that the detection operation of the operation is facilitated.

Specifically, in the present invention, as shown in fig. 2, the assembly process of the needle knife device is as follows: one end of the non-wedge structure is assembled to the fixing part of the second channel 24 of the handle 20, and then the probe 31 of the detection assembly 30 sequentially passes through the second channel 24 and the first channel 13 until the annular part 323 of the positioning cap 32 abuts against the positioning part 22 of the handle 20, so that the assembly of the needle-knife device is completed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A needle-knife device, comprising:

2. The needle-knife apparatus of claim 1, wherein the developer structure comprises a plurality of annular grooves, the plurality of annular grooves being spaced apart along an axial direction of the knife body.

3. The needle-knife device of claim 1, wherein the second channel comprises a fixed portion, an adjustment portion and a drug delivery portion, the adjustment portion is located between the drug delivery portion and the fixed portion, the fixed portion is adapted to the knife body, and the drug delivery portion is used for infusion of a drug solution.

4. The needle-knife device of claim 3, wherein the fixed portion has a diameter dimension equal to or less than a diameter dimension of the adjustment portion.

5. The needle-knife device of claim 1, wherein the handle comprises a hand-held portion, a positioning portion and a connecting portion, the positioning portion is located between the hand-held portion and the connecting portion, the hand-held portion is used for an operator to hold the needle-knife device, and the connecting portion is detachably connected with the positioning cap.

6. The needle-knife apparatus of claim 5, wherein the connecting portion has an outer diameter dimension that is less than an outer diameter dimension of the hand-held portion.

7. The needle knife device of claim 5, wherein the positioning cap comprises a bottom portion, a raised portion and an annular portion, the raised portion and the annular portion are both connected to the upper surface of the bottom portion, one end of the annular portion away from the bottom portion abuts against the positioning portion, and the raised portion is located inside the second channel.

8. The needle knife device of claim 7, wherein a through hole is provided in the boss, the through hole fitting with the probe.

9. The needle-knife apparatus of claim 1, wherein an end of the knife body distal from the handle is a first wedge-shaped structure.

10. The needle-knife apparatus of claim 1, wherein the other end of the probe is a second wedge-shaped structure.