CN213525381U - Bone decompression needle knife - Google Patents

Abstract

The utility model relates to the field of medical appliances, and provides a bone decompression needle knife which comprises a needle body and a sleeve pipe component; the needle body comprises a handle and a needle body, one end of the needle body is connected with the handle, and the other end of the needle body is a puncture part; the sleeve assembly comprises a sleeve, a channel is arranged in the sleeve, and the inner diameter of the channel is matched with the outer diameter of the needle body; the needle body can be inserted into or pulled out from one end of the channel, and the puncture part can extend out from the other end of the channel when the needle body is inserted from one end of the channel. The bone pressure reduction needle knife can discharge the pressure in the bone through the channel, is favorable for releasing the pressure in the bone and improves the treatment effect of the needle knife.

Description

Bone decompression needle knife

Technical Field

The utility model relates to the field of medical equipment, especially relate to a smooth decompression needle sword for reducing intraosseous pressure.

Background

Needle knife medicine is an emerging interdisciplinary developed based on modern acupuncture and surgical techniques. The needle knife is made of metal material and is a needle-like acupuncture tool in shape, as shown in fig. 1, which is a structural schematic diagram of the prior needle knife, the prior needle knife comprises a handle 12 and a needle body 11, and the tail end of the needle body is provided with a puncture part 111. Is developed and formed by combining a scalpel for modern medical surgery on the basis of a needle, a sharp needle and the like in an ancient nine-needle, and is a product organically combined with a soft tissue release operation.

The advantages of the needle knife therapy include simple operation in the treatment process, small incision during treatment, small damage to human tissues, difficult infection, short treatment time, short treatment course and the like. And thus is also readily accepted by the patient.

The length of the existing needle knife is generally about 10-15 cm, and the diameter is 0.4-1.2 mm. The needle knife is divided into a hand-held handle and a needle body. The width of the needle knife is generally equal to the diameter of the needle body, and the cutting edge is sharp.

The needle knife has obvious effect when being applied to bone decompression treatment, but the puncture part (namely the needle body) penetrated by the existing needle for bone decompression is solid, and the substances in the bone flow out by means of high pressure in the bone during the decompression treatment, thereby reducing the pressure in the bone. The gap between the needle body and the tissue is small, so that the intra-osseous pressure is not released sufficiently, and the treatment effect is poor.

SUMMERY OF THE UTILITY MODEL

Therefore, a bone decompression needle knife needs to be provided for solving the technical problems that when the needle knife is used for bone decompression in the prior art, the internal pressure of the bone is not released sufficiently, and the treatment effect is not good enough.

In order to realize the aim, the utility model provides a bone decompression needle knife, which comprises a needle body and a sleeve pipe component;

the needle body comprises a handle and a needle body, one end of the needle body is connected with the handle, and the other end of the needle body is a puncture part;

the sleeve assembly comprises a sleeve, a channel is arranged in the sleeve, and the inner diameter of the channel is matched with the outer diameter of the needle body;

the needle body can be inserted into or pulled out from one end of the channel, and the puncture part can extend out from the other end of the channel when the needle body is inserted from one end of the channel.

Further, the needle body includes first connection structure, thimble assembly includes second connection structure, first connection structure set up in on the handle, second connection structure set up in sheathed tube tip, first connection structure with the connection can be dismantled to the second connection structure.

Further, the first connecting structure and the second connecting structure are mutually matched threaded connecting structures; or the first connecting structure and the second connecting structure are mutually matched clamping structures.

Further, the puncture part is a triangular pyramid puncture needle point or a thread puncture needle point.

Furthermore, the handle is of a rod-shaped structure, and one end of the needle body is vertically connected to the middle of the handle.

Further, the length of the puncture part extending from the other end of the channel is 0.4mm to 0.6 mm.

Further, the outer diameter of the needle body is 2.0mm to 4.0 mm.

Furthermore, the device also comprises a pressure pumping assembly, wherein the pressure pumping assembly is detachably connected with one end of the channel through a hose and is used for reducing the pressure in the channel through suction.

Further, the pressure pumping assembly comprises a syringe, and the tail end of the syringe is detachably connected with one end of the channel through the hose.

Be different from prior art, above-mentioned technical scheme bone decompression needle sword includes needle body and thimble assembly, thimble assembly includes the sleeve pipe, the inside passageway that has of sleeve pipe, the needle body can be followed the one end of passageway is inserted or is extracted, the needle body is followed when the one end of passageway is inserted, puncture portion can follow the other end of passageway stretches out, consequently inserts the needle body and carries out needle sword puncture breakthrough in the passageway and reach the bone in, the needle body is followed when the passageway is extracted, intraosseous pressure accessible passageway is discharged, is favorable to the release of intraosseous pressure, improves needle sword treatment.

Drawings

FIG. 1 is a schematic structural diagram of a prior art needle knife;

FIG. 2 is a schematic structural view of a bone decompression needle-knife according to an embodiment;

FIG. 3 is a schematic view of the bone decompression needle-knife according to an embodiment in use;

FIG. 4 is a schematic longitudinal cross-sectional view of an embodiment of a bone decompression needle-knife;

FIG. 5 is a schematic structural view of a cannula of a bone pressure reduction needle-knife according to an embodiment;

FIG. 6 is a structural view of a needle body of the bone pressure reduction needle-knife according to an embodiment;

FIG. 7 is a bottom view of the needle body of the bone pressure reduction needle-knife according to an embodiment;

fig. 8 is a schematic view of a bone decompression needle-knife according to an embodiment in use.

Description of reference numerals:

1. a needle body;

11. a needle body;

111. a puncture section;

12. a handle;

13. a first connecting structure;

2. a bushing assembly;

21. a sleeve;

22. a channel;

23. a second connecting structure;

3. a pumping assembly;

31. an air extraction device;

32. a hose;

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 2 to 8, the present embodiment provides a bone decompression needle-knife. As shown in fig. 2, the bone decompression needle-knife comprises a needle body 1 and a cannula assembly 2. Wherein, as shown in fig. 3, the needle body 1 and the cannula assembly 2 are movably connected, and the needle body 1 can be inserted into the cannula assembly 2 or pulled out from the cannula assembly 2 along the length direction of the needle body 1 (i.e. the direction of arrow Z in fig. 2).

As shown in fig. 4 to 6, the needle body 1 includes a handle 12 and a needle body 11, one end of the needle body is connected to the handle 12, and the other end of the needle body 11 is a puncture part 111. The needle body 11 is similar to a conventional needle knife, the needle body 11 can be made of a solid metal needle body, and the handle 12 can be made of plastic or metal material.

The sleeve assembly 2 comprises a sleeve 21, the sleeve 21 has a passage 22 therein, and the inner diameter of the passage 22 is matched with the outer diameter of the needle body 11. Specifically, the sleeve 21 may also be made of a metal tube, the channel 22 in the sleeve 21 is a channel with a circular cross section, and the inner diameter of the channel 22 is slightly larger than the outer diameter of the needle body 11, so that the needle body 11 can be inserted into or pulled out of the channel 22. For example, when the outer diameter of the needle body 11 is 2.0mm, the inner diameter of the passage 22 may be 2.1mm or 2.2 mm.

The needle body 11 is inserted into the passage 22 from one end of the passage 22, and a piercing part 111 at the tip of the needle body may protrude from the other end (bottom end) of the passage 22, so that it can pierce the human tissue to the lesion. In the bone decompression puncture treatment, the needle body 11 is inserted into the passage 22, the puncture section 111 is fixed from the other end of the passage 22 with respect to the needle body 11 and the cannula 21, the puncture section 111 is punctured into the bone, and the needle body 11 is then pulled out from the passage 22 of the cannula 21. After the needle body 11 is pulled out, the pressure in the bone can be discharged out of the body through the channel 22, and the cross section of the channel 22 is larger than the gap between the body and the tissue in the prior art, so that the pressure in the bone can be discharged from the channel 22, the release of the pressure in the bone is more sufficient, and the treatment effect is more remarkable.

In this embodiment, the length of the other end of the puncture part 111 extending out of the channel 22 is 0.5mm, so that the puncture part 111 can be completely exposed out of the channel 22 to facilitate puncture, and the distance between the puncture part 111 and the end of the channel 22 is minimized to facilitate the discharge of the intra-osseous pressure into the channel 22. In other embodiments, the length of the piercing part 111 extending from the other end of the channel may be selected to be anywhere between 0.4mm and 0.6mm, depending on the length or diameter of the needle body 11.

As shown in fig. 3 to 7, in the embodiment, in order to facilitate fixation between the needle body 1 and the cannula 21 during puncture and to enable the needle body and the cannula 21 to puncture to a lesion synchronously, a detachable connection structure is further provided between the needle body 1 and the cannula 21. The connecting structure comprises a first connecting structure 13 and a second connecting structure 23 which are mutually matched, wherein the first connecting structure 13 is arranged on the handle 12 at a position opposite to the sleeve 21, and the second connecting structure 23 is arranged at the top end of the sleeve 21 and on the periphery of the channel 22. When the needle body 11 is inserted into the channel 22 and the piercing part 111 protrudes from the end of the channel 22, the first connecting structure 13 and the second connecting structure 23 contact each other and are detachably connected together. Therefore, when puncture is performed, the needle body 11 is firstly inserted into the channel 22 and is connected through the first connecting structure 13 and the second connecting structure 23, so that the needle body and the cannula 21 are relatively fixed; after the puncture reaches the lesion, the first connecting structure 13 and the second connecting structure 23 are separated, and then the needle body 11 is pulled out from the passage 22 of the cannula 21.

As shown in fig. 3 and 4, in the present embodiment, the first connecting structure 13 and the second connecting structure 23 are threaded connecting structures, wherein the first connecting structure 13 is an internal thread, and the second connecting structure 23 is an external thread, and the detachable connection between the needle body 11 and the sleeve 21 is realized through the internal thread and the external thread. In another embodiment, the first connecting structure 13 and the second connecting structure 23 may also be a snap structure, through which the detachable connection between the needle body 11 and the cannula 21 is realized. Wherein, in well joint structure, set up the second connection structure at sleeve pipe 21 top and can be the draw-in groove, set up the dop that first connection structure 13 on handle 12 can and draw-in groove looks adaptation, the dop can be dismantled with the draw-in groove and be connected.

In other embodiments, a threaded hole may be provided at an upper portion of the side surface of the sleeve 21, and the threaded hole leads to the channel 22, so that the positioning screw may be screwed into the threaded hole, so that the end of the positioning screw abuts against the side surface of the needle body 11 to realize relative fixation between the needle body 11 and the sleeve 21.

As shown in fig. 6, in the present embodiment, the handle 12 is preferably a rod-shaped structure, one end of the needle body 11 is vertically connected to the middle of the handle, and the handle 12 and the needle body 11 form a t-shaped structure. The other end of the needle body 11 is a puncturing part 111, and in some embodiments, the puncturing part 111 has a needle tip shape with a gradually reduced cross-sectional area. Preferably, in order to facilitate penetration of tough tissues such as periosteum, tendon, etc., the penetration portion 111 is a triangular pyramid-shaped puncture needle tip or a screw-threaded puncture needle tip in the present embodiment.

The existing bone decompression needle knife has a single specification, and in some embodiments, the diameter of the needle knife 11 can be various: 2.0mm, 3.0mm,4.0mm, the diameter of the needle knife 11 can be selected according to the treatment part, thereby avoiding additional damage caused by too large diameter of the needle body 11.

In another embodiment, as shown in fig. 8, in order to further improve the intraosseous pressure discharge effect, the bone decompression needle-knife includes a compression assembly in addition to the needle body 1 and the cannula assembly 2. The pumping assembly 3 is detachably connected to the top end of the passage 22 through a hose 32, and the pumping assembly 3 is used for reducing the pressure in the passage 22 through suction. Wherein the pumping assembly 3 comprises a pumping device 31, and the pumping device 31 is connected with the channel 22 at the top of the sleeve 21 through a hose 32. The bone decompression needle knife is punctured to a focus in bone, and after the needle body 11 is pulled out from the sleeve 21, the top end of the channel 22 can be connected with the air extractor through the hose, the pressure in the channel 22 is extracted through the air extractor to be discharged, so that the pressure in the bone is promoted to be discharged through negative pressure, and a better bone decompression effect is achieved.

In this embodiment, the pump assembly comprises a syringe, i.e. a suction device 31 is provided as a syringe, the tip of which is detachably connected to one end of the channel by means of a hose 32. After the syringe is connected with the channel 22 through the hose, the pressure in the channel 22 can be pumped out by pulling the piston rod of the syringe backwards, so that negative pressure is formed in the channel 22, and the discharge of the pressure in the bone is facilitated. In other embodiments, the air-extracting device in the pressure-extracting assembly can also be a small air-extracting cylinder or an air-extracting pump.

It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.

Claims (7)

1. A bone decompression needle knife, which is characterized by comprising a needle body and a cannula component;

the needle body comprises a handle and a needle body, one end of the needle body is connected with the handle, and the other end of the needle body is a puncture part;

the sleeve assembly comprises a sleeve, a channel is arranged in the sleeve, and the inner diameter of the channel is matched with the outer diameter of the needle body;

the needle body can be inserted into or pulled out of one end of the channel, and the puncture part can extend out of the other end of the channel when the needle body is inserted into the channel from one end;

the pressure reducing device also comprises a pressure reducing assembly, wherein the pressure reducing assembly is detachably connected with one end of the channel through a hose and is used for reducing the pressure in the channel through suction;

the pressure pumping assembly comprises a syringe, and the tail end of the syringe is detachably connected with one end of the channel through the hose.

2. The bone pressure reduction needle-knife of claim 1, wherein the needle body comprises a first connection structure, the cannula assembly comprises a second connection structure, the first connection structure is disposed on the handle, the second connection structure is disposed on an end of the cannula, and the first connection structure and the second connection structure are detachably connected.

3. The bone pressure reduction needle-knife of claim 2, wherein the first and second connection structures are mutually mating threaded connection structures; or the first connecting structure and the second connecting structure are mutually matched clamping structures.

4. The bone pressure reduction needle-knife of claim 1, wherein the piercing portion is a triangular pyramid piercing tip or a threaded piercing tip.

5. The bone pressure reduction needle knife of claim 1, wherein the handle is a rod-like structure, and one end of the needle body is vertically connected to the middle of the handle.

6. The bone pressure reduction needle knife of claim 1, wherein the piercing portion extends from the other end of the channel by a length of 0.4mm to 0.6 mm.

7. The bone decompression needle-knife of claim 1, wherein the needle body has an outer diameter of 2.0mm to 4.0 mm.

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