CN215192080U - Needle head for testicular puncture and packaging structure of the needle head - Google Patents

Abstract

The utility model discloses a packaging structure of syringe needle and this syringe needle for testicle puncture, one of them syringe needle for testicle puncture has corresponding front end and rear end. The testicle puncture needle comprises an outer needle tube, an inner needle tube and a needle bolt, wherein the front end of the outer needle tube is provided with an inclined plane which penetrates into organ tissues; the inner needle tube is arranged in the outer needle tube and is attached to the tube wall of the outer needle tube, a plurality of notches are formed in the inner needle tube, and the tube wall at the notches protrudes inwards to form barbs; the pintle is arranged at the rear end of the needle head and is used for connecting the syringe. The inner needle tube is provided with the barbs and is used for fixing the seminiferous tubules to avoid separating from the needle head, the sampling success rate is improved, the influence on a patient is reduced, medical resources are correspondingly saved, waste is reduced, the sampling times are effectively reduced, and the working strength of doctors is reduced.

Description

Needle head for testicular puncture and packaging structure of the needle head

Technical Field

The application relates to the technical field of medical equipment and medical equipment packaging, in particular to a needle head for testicular puncture and a packaging structure of the needle head.

Background

With the rapid development of society, the proportion of male suffering from infertility is increased due to various factors such as environmental pollution and poor lifestyle, and the male produces sperms in the seminiferous tubules (seminiferous tubules) in the testis. The convoluted tubule is a long and thin (adult diameter is about 105-250 μm, length is about 30-70 μm) duct, and is highly convoluted inside the leaflet. The testicle puncture aspiration semen extraction is mainly used for diagnosis of azoospermia and male patients who have difficulty in taking semen on the egg taking day of test tube babies.

At present traditional testicle puncture suction semen art is generally accomplished by single independent operation, and the pjncture needle of using testicle puncture usefulness is the specification: a1.2 x 32(mm) common needle head is of a hollow structure, a testis is fixed by a left hand generally, a 20ml syringe with a puncture needle head is held by a right hand to puncture into a seminiferous tubule tissue in the testis, the syringe is withdrawn (a piston is reversely pushed) to generate negative pressure in the syringe, the seminiferous tubule is sucked into a needle point, a negative blank holder is maintained to withdraw the puncture needle, if the negative pressure generated in the process of withdrawing the needle head is too small, the seminiferous tubule is easy to be separated from the needle head due to the resistance influence of the peripheral tissue of a needle channel, the seminiferous tubule cannot be drawn out of a body surface, the sampling operation needs to be repeated, when the seminiferous tubule cannot be sucked for 2 times, a micro-vascular forceps is usually used for expanding the needle channel along the previous needle channel and then enters the testis to clamp the seminiferous tubule, and the injury to a patient is further increased.

SUMMERY OF THE UTILITY MODEL

The application provides a syringe needle for testicular puncture, has solved the problem that current testicular puncture single needle insertion sample (seminiferous tubule) success rate is low and has reduced the injury to patient.

A testicular puncture needle having respective forward and rearward ends, comprising:

an outer needle tube having a bevel at its tip end for penetrating into an organ tissue;

the inner needle tube is arranged in the outer needle tube and is attached to the tube wall of the outer needle tube, a plurality of notches are formed in the inner needle tube, and the tube wall at the notches protrudes inwards to form barbs;

the pintle is arranged at the rear end of the needle head and is used for connecting the syringe.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the barb is inclined towards the rear end.

Optionally, the barb is disposed adjacent the leading end.

Optionally, the barbs are spaced axially of the needle.

Optionally, the inner needle tube and the outer needle tube are in interference fit to limit separation of the two.

The utility model provides a packaging structure of syringe needle itself still provides, include above-mentioned arbitrary syringe needle and packing tube for the testicle puncture, the packing tube has blind end and open end, the syringe needle is followed for the testicle puncture the open end stretches into in the packing tube, the inner wall chucking of pintle and open end.

Optionally, the outer wall of the pintle is provided with a plurality of first ribs, and the first ribs are arranged along the axial direction of the pinhead and are tightly clamped with the inner wall of the opening end.

Optionally, first protruding muscle is provided with first spacing step including guide section and chucking section in the juncture of guide section and chucking section, the packing tube is close to the protruding spacing step of second that is equipped with in position of open end, first spacing step and the spacing step of second cooperate each other in order to restrict syringe needle is inwards removed for the testicle puncture.

Optionally, the protruding a plurality of second protruding muscle that is equipped with of inner wall of packing tube with first protruding muscle complex, wherein at least one during the assembly first protruding muscle is in two between the second protruding muscle, the restriction syringe needle is used in the testicle puncture the packing tube internal rotation.

Optionally, the outer wall of the packing tube is convexly provided with a plurality of anti-slip ribs.

The utility model provides a pjncture needle for testicle sets up the barb in order to fix because of the negative pressure gets into the inside seminiferous tubule of syringe needle, avoids when the testicle is extracted to the syringe needle because of the testis and the resistance between the seminiferous tubule and the syringe needle separation, and more traditional structure has improved the sample success rate, has reduced the injury to patient, and corresponding medical resource has been saved reduces extravagantly.

Drawings

FIG. 1 is a view showing the structure of a testicular puncture needle according to an embodiment of the present application inserted into a tissue organ;

FIG. 2 is a view showing the structure of a needle for testicular puncture during an extraction or suction operation according to an embodiment of the present application;

FIG. 3 is a view showing the structure of a testicular puncture needle according to an embodiment of the present application completely detached from a tissue organ;

FIG. 4 is a perspective view of an inner needle tube of a testicular puncture needle according to an embodiment of the present application;

FIG. 5 is an enlarged view of portion A of FIG. 3;

fig. 6 is a perspective view of a packaging structure of a testicular puncture needle according to an embodiment of the present application;

FIG. 7 is an exploded view of the packaging structure of the testicular puncture needle of one embodiment of the present application;

fig. 8 is a perspective view of a packing tube in a packing structure of a needle for testicular puncture according to an embodiment of the present application;

fig. 9 is a perspective view of a testicle-piercing needle in the packaging structure of the testicle-piercing needle according to the embodiment of the present application;

fig. 10 is a sectional view showing a packaging structure of a testicular puncture needle according to an embodiment of the present application.

The reference numerals in the figures are illustrated as follows:

1. an outer needle tube; 2. an inner needle tube; 21. a notch; 22. a barb;

3. a pintle; 31. a first rib; 311. a guide section; 312. a clamping section; 313. a first limit step;

4. seminiferous tubules; 5. a needle head;

6. packaging the tube; 61. a closed end; 62. an open end; 621. a second limit step; 63. a second rib;

64. and (4) anti-skid ribs.

Detailed Description

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 a part of the embodiments of the present application, and not all of the 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 will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In this application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any particular order or number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The application provides a pair of testicle is syringe needle for puncture has corresponding front end and rear end, and the front end is the pointed end, can pierce the organ tissue, and is corresponding, and opposite direction is the rear end.

Referring to fig. 1 to 5 and fig. 9, the present application provides a testicle puncture needle, which includes an outer needle tube 1, an inner needle tube 2, and a pintle 3. Wherein, the front end of outer needle tubing 1 has the inclined plane of puncturing the organ tissue, and outer needle tubing 1 is the metal material, guarantees certain intensity, and the inclined plane is formed through machining such as cutting, guarantees to easily puncture the organ tissue.

The inner needle tube 2 is made of metal, the outer wall of the inner needle tube is attached to the tube wall of the inner needle tube 1, and the inner needle tube and the outer needle tube can be fixed in a clamping fit or interference fit mode. The inner wall of the inner needle tube 2 is provided with a plurality of notches 21 formed by punching, and the tube wall at the notches 21 is protruded inwards to form barbs 22 with thin edges, so that the bent tubules 4 sucked into the needle tube can be conveniently hooked and fixed. The pintle 3 is made of plastic and is fixedly connected to the rear end of the needle 5 for connecting a syringe (not shown).

As shown in fig. 1 to fig. 3, the specific operation mode is that after the needle for testicular puncture is connected with the injector through the pintle 3, the needle is punctured into the testicle and extends into the vicinity of the seminiferous tubule 4, the piston (not shown) on the injector is operated and moved to cause the inner needle tube 2 to generate negative pressure, the seminiferous tubule 4 enters the inner needle tube 2, then the needle 5 is slowly pulled out, the seminiferous tubule 4 or the tissue connected with the seminiferous tubule 4 is hooked by at least one barb 22, and after the needle 5 is completely separated, the next pathological analysis of the seminiferous tubule 4 is performed.

The utility model provides an interior needle tubing of syringe needle for testicle puncture has the barb for fixed seminiferous tubule 4 is in order to avoid breaking away from the syringe needle, has improved the success rate of sample, reduces the influence to patient, has saved medical resource correspondingly, reduces extravagantly, effectively reduces the sample number of times simultaneously or saves the operation of pressing from both sides with the capillary inlay clamp, has reduced doctor's working strength.

Referring to fig. 1-5 again, in one embodiment, the barbs 22 are inclined toward the rear end at an angle of 30-60 ° to the axial direction, so as to hook the seminiferous tubule 4 or tear the tissue carrying the seminiferous tubule 4.

Because the inner bore of the inner needle cannula 2 has a small diameter, which is not conducive to tissue entry, in one embodiment the barbs 22 are disposed adjacent the forward end. The doctor pulls the piston for a short distance to generate smaller negative pressure, so that the tissue with the convoluted tubule 4 enters the inner needle tube 2 for a short distance to be hooked and fixed by the barb 22, the doctor does not need to pull the piston vigorously, and the operation difficulty is reduced.

In one embodiment, the barbs 22 are arranged at intervals along the axial direction of the needle 5, so that the convoluted tubule 4 can be at least fixed by one or more barbs 22, and the sampling success rate is further improved. In the preferred embodiment, the barbs 22 are also circumferentially arranged around the inner wall of the inner needle cannula 2, again improving the success rate of sampling.

Considering that the needles 5 are disposable, there is no need to consider much the connection tightness between the outer tube 1 and the inner tube 2 due to repeated use. In one of them embodiment, interior needle tubing 2 and 1 interference fit of outer needle tubing are in order to restrict both separation, guarantee certain connection fastening nature, reduce the processing degree of difficulty, and the assembly is simple, need not through complicated fixed mode such as inlay card or gluing.

Referring to fig. 6 to 10, the present application further provides a needle packaging structure, which includes any one of the above testicular puncture needles and a packaging tube 6. Wherein, packing tube 6 is the tube-shape through moulding plastics and forms, and has closed end 61 and open end 62, and closed end 61 avoids being contaminated by needle 5 that is in packing tube 6 inside during the equipment, simultaneously, avoids the fish tail personnel. The open end 62 is used for the testicle to puncture and stretches into the packing tube 6 with the syringe needle, and the partial outer wall of pintle 3 and the inner wall chucking cooperation of open end 62 department guarantee that syringe needle 5 and packing tube 6 are connected the fastening nature. Avoiding contamination by detachment from the packing tube 6 during transport or movement.

Referring to fig. 7-10, in one embodiment, the outer wall of the pintle 3 is provided with a plurality of first ribs 31, and the first ribs 31 are disposed along the axial direction of the needle 5 and clamped with the inner wall of the open end 62. The first rib 31 is deformed to abut against the opening end 62, and a tension force is generated between the first rib and the opening end to limit the needle 5 to be separated. The first ribs 31 are distributed at intervals along the circumferential direction and are fixed through multi-point clamping instead of the outer surface of the whole pintle 3, so that the assembly operation is facilitated.

Referring to fig. 7 to 10 again, in one embodiment, the first rib 31 includes a guiding section 311 and a clamping section 312, and a first position-limiting step 313 is disposed at a junction of the guiding section 311 and the clamping section 312. The guide section 311 is closer to the front end than the fastening section 312, and the guide section 311 is smaller than the fastening section 312 in the radial dimension of the needle 5, thereby forming a first limit step 313 at the front end of the fastening section 312. And the forward end of the guide section 311 is chamfered and, correspondingly, the open end 62 is also chamfered to facilitate insertion and assembly of the needle 5. The position of the packaging tube 6 adjacent to the opening end 62 is convexly provided with a second limiting step 621, the first limiting step 313 and the second limiting step 621 are mutually matched to limit the testicle puncture needle 5 to move inwards, the limiting assembly effect is achieved, and the front end of the needle 5 is prevented from abutting against the inner bottom surface of the packaging tube 6 and being polluted. And the syringe is convenient to butt joint with the pintle 3.

Referring to fig. 7 to 10 again, in one embodiment, the inner wall of the packing tube 6 is protruded with a plurality of second ribs 63 matching with the first ribs 31 and distributed at intervals along the circumferential direction, and at least one of the first ribs 31 is located between two second ribs 63 during assembly, so as to limit the rotation of the needle head for testicle puncture in the packing tube 6, and facilitate the assembly of the pintle 3 and the injector. In this embodiment, the first ribs 31 are provided with four ribs at intervals of 90 °, and the second ribs 63 are provided with four ribs at intervals of 90 °, so that all the first ribs 31 are positioned between the two second ribs 63 during assembly.

Referring to FIG. 6, in one embodiment, the outer wall of packing tube 6 is provided with a plurality of anti-slip ribs 64, and anti-slip ribs 64 may extend along the axial or radial direction of packing tube 6 to increase the friction force during holding and prevent slipping. In this embodiment, the anti-slip ribs 64 extend in the axial direction of the packing tube 6 and are circumferentially arranged around the circumference of the packing tube 6, improving the frictional force of the grip.

The utility model provides a puncture needle for testicle sets up the barb in order to fix because of the negative pressure gets into the inside seminiferous tubule of bending of syringe needle through the inner wall at the syringe needle, avoids when the syringe needle extracts the testicle because of the testicle with bend the resistance between the seminiferous tubule and separate with the syringe needle, more traditional structure, improved the sample success rate, reduced the injury to patient, corresponding medical resource of having saved reduces extravagantly. The matched packing tube effectively protects the puncture needle head for the testis from being polluted, facilitates transportation and movement, and simultaneously prevents the tip end of the needle head from scratching a user.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims (10)

1. Testicle is syringe needle for puncture has corresponding front end and rear end, its characterized in that includes:

an outer needle tube having a bevel at its tip end for penetrating into an organ tissue;

the inner needle tube is arranged in the outer needle tube and is attached to the tube wall of the outer needle tube, a plurality of notches are formed in the inner needle tube, and the tube wall at the notches protrudes inwards to form barbs;

the pintle is arranged at the rear end of the needle head and is used for connecting the syringe.

2. A testicular puncture needle according to claim 1 wherein said barb is angled toward said rear end.

3. A testicular puncture needle according to claim 1 wherein said barb is disposed adjacent said forward end.

4. A testicular puncture needle according to claim 1 wherein said barbs are spaced axially of the needle.

5. The testicular puncture needle of claim 1 wherein the inner needle cannula and the outer needle cannula are interference fit to limit separation of the two.

6. A packaging structure of a needle head, characterized by comprising the needle head for testicular puncture according to any one of claims 1 to 5 and a packaging tube, wherein the packaging tube has a closed end and an open end, the needle head for testicular puncture extends into the packaging tube from the open end, and the pintle is tightly clamped with the inner wall of the open end.

7. The needle packaging structure of claim 6, wherein the outer wall of the pintle is provided with a plurality of first ribs, and the first ribs are arranged along the axial direction of the needle and clamped with the inner wall of the open end.

8. The needle packaging structure of claim 7, wherein the first rib comprises a guiding section and a clamping section, a first limiting step is arranged at the junction of the guiding section and the clamping section, a second limiting step is convexly arranged at the position of the packaging tube adjacent to the open end, and the first limiting step and the second limiting step are mutually matched to limit the inward movement of the needle for testicular puncture.

9. The needle tip package structure of claim 7, wherein a plurality of second ribs are protruded from the inner wall of the package tube to be engaged with the first ribs, and at least one of the first ribs is located between two of the second ribs during assembly to restrict the rotation of the needle tip for testicular puncture in the package tube.

10. The needle tip packaging structure of claim 6, wherein the outer wall of the packaging tube is provided with a plurality of anti-slip ribs.

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