CN209695320U - Testicle puncture trocar with simple structure - Google Patents

Abstract

The utility model provides a simple structure's testicle puncture trocar, include: needle tubing, puncture guide wire and trocar. The puncture guide wire comprises a guide wire needle point, a guide wire needle stalk and a guide wire needle bolt, wherein a joint of the needle tube is detachably inserted into one end of the guide wire needle bolt, one end of the guide wire needle stalk is fixedly inserted into the other end of the guide wire needle bolt, and the other end of the guide wire needle stalk is fixedly connected with the guide wire needle point. A seal wire needle point for rotatory sample is the fretwork heliciform, and the one end that deviates from seal wire needle stalk of seal wire needle point has the seal wire blade, and one side of seal wire blade is the inclined plane, and the tip of seal wire blade is the point form. The minimum internal diameter of trocar is greater than the biggest external diameter of puncture seal wire, and trocar slidable and detachably cup joint in puncture seal wire outside, and the trocar includes trocar bolt, trocar stalk and trocar blade. Through the utility model discloses can take out the seminal tubule of cranking and refining fast through rotatory puncture seal wire, draw materials more abundant, and simple structure has practiced thrift manufacturing cost.

Description

A kind of simple testicular biopsy trocar of structure

Technical field

The utility model relates to assisted reproductive technology fields, and in particular to a kind of simple testicular biopsy trocar of structure.

Background technique

There is sterile problem in World Health Organization's investigation display, about 10% couple at child-bearing age, wherein men and women's factor respectively accounts for about 50%.More serious in the factor of male sterility is with azoospermia, disease incidence of the azoospermia in general males About 1%, it is about 10%-15% in Infertility male crowd, azoospermia is divided into obstruction azoospermia and non-obstruction azoospermia, Wherein non-obstruction azoospermia accounts for about the 70% of azoospermia.

Azoospermia patients as the case may be, can by micro- Epididyml sperm aspiration, Percutaneous epididymal sperm aspiration, Micro-dissections testis takes smart art, Testicular sperm extraction, testis biopsy rifle, testicular needle aspiration art or the suction of testis fine needle puncture The methods of smart art is taken to be diagnosed or obtained sperm row ICSI treatment.

Obstruction azoospermia patients commonly use micro- Epididyml sperm aspiration and Percutaneous epididymal sperm aspiration.Non- obstruction is without essence The method that sub- disease patient generallys use is the percutaneous puncture in testicular needle aspiration art, i.e., using 0.7 millimeter to 1.2 millimeter opening The intravenous infusion syringe of diameter and 10 milliliters or 20 milliliters of syringes first pass through the sharp property cutting testis tissue of intravenous infusion syringe, then Tissue is drawn onto vitro by syringe.The advantages of the method, is to operate after local anaesthesia, without making open scrotum It detects, also not needing operator has microsurgery experience, but exists and take tissue more difficult, and materials amount is less, sometimes can not Meet the defect of clinical demand.Also, current testicular biopsy trocar designs are more complicated, and production cost is higher.

Utility model content

In view of the above-mentioned problems, the utility model proposes a kind of simple testicular biopsy trocars of structure, it is therefore an objective to solve tradition Testicular needle aspiration art take organizational difficulties, the problem of materials amount is few, and testicular biopsy trocar designs are complicated, high production cost.

The utility model relates to a kind of simple testicular biopsy trocars of structure, including needle tubing, puncture seal wire and trochar；Institute Stating and puncturing seal wire includes seal wire needle point, seal wire needle stalk and seal wire pintle, and the connector of the needle tubing is detachably inserted into described lead In one end of silk pintle, one end fixation of the seal wire needle stalk is plugged in the other end of the seal wire pintle, the seal wire needle The other end of stalk is fixedly connected with the seal wire needle point；The seal wire needle point for rotating sampling is in hollow out helical form, described One end away from seal wire needle stalk of seal wire needle point has seal wire cutting edge, and the side of the seal wire cutting edge is inclined-plane, described to lead The most tip shaped of silk cutting edge；The minimum diameter of described sleeve pipe needle is greater than the maximum outside diameter for puncturing seal wire, described sleeve pipe Needle slidably and is removably socketed on outside the puncture seal wire.

Preferably, described sleeve pipe needle includes casing pintle, trochar stalk and trochar cutting edge.

Preferably, one end fixation of described sleeve pipe needle stalk is plugged in described sleeve pipe pintle, described sleeve pipe needle cutting edge is located at The other end of described sleeve pipe needle stalk, the side of described sleeve pipe needle cutting edge are inclined-plane, the most tip shaped of described sleeve pipe needle cutting edge.

Preferably, the outer diameter of the seal wire needle stalk is identical as the outer diameter of the seal wire needle point.

Preferably, the internal diameter of described sleeve pipe needle stalk is greater than the outer diameter of seal wire needle stalk.

Preferably, the internal diameter of described sleeve pipe needle stalk is 1.2 millimeters, the internal diameter of the seal wire needle stalk is 0.7 millimeter.

Preferably, each hollow out gap in the spiral helicine seal wire needle point of hollow out is at least 0.3 millimeter.

Preferably, the length that the seal wire needle stalk and the seal wire needle point add up is greater than the length of described sleeve pipe needle.

Compared with prior art, a kind of simple testicular biopsy trocar of structure of the utility model punctures seal wire by rotation Quickly remove convoluted seminiferous tubule, it is small to the damage of human body without cutting testis tissue, it is swift to operate, can repeatedly draw materials, materials compared with Sufficiently.Also, the testicular biopsy trocar of the utility model only need to slightly reequip common syringe, whole without special production one Testicular biopsy trocar is covered, structure is simple, has saved production cost.

Detailed description of the invention

Fig. 1 is the overall schematic of the simple testicular biopsy trocar of structure of an embodiment of the present invention；

Fig. 2 is the schematic diagram of the puncture seal wire of an embodiment of the present invention；

Fig. 3 is the schematic diagram of the trochar of an embodiment of the present invention；

In figure: 1- needle tubing；2- punctures seal wire；21- seal wire needle point；211- seal wire cutting edge；22- seal wire needle stalk；23- seal wire needle Bolt；3- trochar；31- casing pintle；32- trochar stalk；33- trochar cutting edge.

Specific embodiment

To make to have further understanding to the purpose of this utility model, construction, feature and its function, hereby cooperate embodiment Detailed description are as follows.

Incorporated by reference to referring to Fig. 1 and Fig. 2, Fig. 1 is the simple testicular biopsy trocar of structure of an embodiment of the present invention Overall schematic, Fig. 2 are the schematic diagram of the puncture seal wire of an embodiment of the present invention.A kind of structure of the utility model is simple Testicular biopsy trocar include needle tubing 1, puncture seal wire 2 and trochar 3.

Puncturing seal wire 2 includes that seal wire needle point 21, seal wire needle stalk 22 and seal wire pintle 23, the connector of needle tubing 1 are removably inserted It is connected in one end of seal wire pintle 23, one end fixation of seal wire needle stalk 22 is plugged in the other end of seal wire pintle 23, seal wire needle The other end of stalk 22 is fixedly connected with seal wire needle point 21.For rotating the seal wire needle point 21 of sampling in hollow out helical form, seal wire needle One end away from seal wire needle stalk 22 of point 21 has seal wire cutting edge 211, and the side of seal wire cutting edge 211 is inclined-plane, seal wire cutting edge 211 Most tip shaped, so can quickly be pierced into testis.The minimum diameter of trochar 3 is greater than outside the maximum for puncturing seal wire 2 Diameter can so be such that trochar 3 slidably and is removably socketed on and puncture outside seal wire 2.Preferably, for the ease of processing and It draws materials when easy to use, the outer diameter of seal wire needle stalk 22 is identical as the outer diameter of seal wire needle point 21.

Fig. 3 is referred to, Fig. 3 is the schematic diagram of the trochar of an embodiment of the present invention.Preferably, trochar 3 includes Casing pintle 31, trochar stalk 32 and trochar cutting edge 33.One end fixation of trochar stalk 32 is plugged in casing pintle 31, is covered Pipe needle cutting edge 33 is located at the other end of trochar stalk 32, and the side of trochar cutting edge 33 is inclined-plane, the most end of trochar cutting edge 33 Portion is pointed, so can quickly lunge in testis.

Preferably, the internal diameter of trochar stalk 32 is greater than the outer diameter of seal wire needle stalk 22.Further, the internal diameter of trochar stalk 32 It is 1.2 millimeters, the internal diameter of seal wire needle stalk 22 is 0.7 millimeter, and the wall thickness of seal wire needle stalk 22 is 0.15 millimeter, can so be guaranteed The convoluted seminiferous tubule for being wound in seal wire needle point 21 smoothly passes through from trochar stalk 32.

Preferably, in order to make convoluted seminiferous tubule is inserted to be wound on seal wire needle point 21, and then enough convoluted seminiferous tubules are taken out, Each hollow out gap in the spiral helicine seal wire needle point 21 of hollow out is at least 0.3 millimeter.

Preferably, the length that seal wire needle stalk 22 and seal wire needle point 21 add up is greater than the length of trochar 3, can so protect Card seal wire needle point 21 lunges that intratesticular depth is enough, and then gets the convoluted seminiferous tubule of desirable quality.

In practical applications, first trochar 3 is pierced into testis with preset depth, then the puncture that needle tubing 1 will be connected with Seal wire 2 is inserted into from trochar 3 and is pierced into testis, until the depth for puncturing the piercing of seal wire 2 is identical as trochar 3 or compares casing Needle 3 is deeper.Then it is rotated by rotation needle tubing 1 and punctures seal wire 2, while guaranteeing that trochar 3 does not rotate, keep the song in testis thin Spermaduct is inserted to be wound on the spiral helicine seal wire needle point 21 of hollow out.Then it is slowly extracted out by drawn needle pipe 1 and punctures seal wire 2, Guarantee that trochar 3 does not move simultaneously, the convoluted seminiferous tubule on seal wire needle point 21 is finally flushed to culture dish.If primary Materials amount is inadequate, can will puncture be pierced into for seal wire more than 2 times, rotation and extraction, get after enough convoluted seminiferous tubules again by trochar 3 Slowly extraction terminates materials, easy to operate, and the pain of patient is smaller.

Compared with prior art, a kind of simple testicular biopsy trocar of structure of the utility model punctures seal wire by rotation Quickly remove convoluted seminiferous tubule, it is small to the damage of human body without cutting testis tissue, it is swift to operate, can repeatedly draw materials, materials compared with Sufficiently.Also, the testicular biopsy trocar of the utility model only need to slightly reequip common syringe, whole without special production one Testicular biopsy trocar is covered, structure is simple, has saved production cost.

The utility model is described by above-mentioned related embodiment, however above-described embodiment is only to implement the utility model Example.It must be noted that the embodiment disclosed is not limiting as the scope of the utility model.On the contrary, not departing from this It is changed and retouched made by the spirit and scope of utility model, belongs to the scope of patent protection of the utility model.

Claims (8)

1. a kind of simple testicular biopsy trocar of structure, it is characterised in that including needle tubing, puncture seal wire and trochar；

The puncture seal wire includes that seal wire needle point, seal wire needle stalk and seal wire pintle, the connector of the needle tubing are detachably inserted into In one end of the seal wire pintle, one end fixation of the seal wire needle stalk is plugged in the other end of the seal wire pintle, described The other end of seal wire needle stalk is fixedly connected with the seal wire needle point；

For rotating the seal wire needle point of sampling in hollow out helical form, one obstructed away from the seal wire needle of the seal wire needle point End has seal wire cutting edge, and the side of the seal wire cutting edge is inclined-plane, the most tip shaped of the seal wire cutting edge；

The minimum diameter of described sleeve pipe needle is greater than the maximum outside diameter for puncturing seal wire, and described sleeve pipe needle is slidably and removably It is socketed on outside the puncture seal wire.

2. a kind of simple testicular biopsy trocar of structure as described in claim 1, it is characterised in that described sleeve pipe needle includes set Pipe pintle, trochar stalk and trochar cutting edge.

3. a kind of simple testicular biopsy trocar of structure as claimed in claim 2, it is characterised in that the one of described sleeve pipe needle stalk End fixation is plugged in described sleeve pipe pintle, and described sleeve pipe needle cutting edge is located at the other end of described sleeve pipe needle stalk, described sleeve pipe needle The side of cutting edge is inclined-plane, the most tip shaped of described sleeve pipe needle cutting edge.

4. a kind of simple testicular biopsy trocar of structure as claimed in claim 3, it is characterised in that outside the seal wire needle stalk Diameter is identical as the outer diameter of the seal wire needle point.

5. a kind of simple testicular biopsy trocar of structure as claimed in claim 4, it is characterised in that described sleeve pipe needle obstructs interior Diameter is greater than the outer diameter of seal wire needle stalk.

6. a kind of simple testicular biopsy trocar of structure as claimed in claim 5, it is characterised in that described sleeve pipe needle obstructs interior Diameter is 1.2 millimeters, and the internal diameter of the seal wire needle stalk is 0.7 millimeter.

7. a kind of simple testicular biopsy trocar of structure as described in claim 1, it is characterised in that be in the spiral helicine institute of hollow out The each hollow out gap for stating seal wire needle point is at least 0.3 millimeter.

8. a kind of simple testicular biopsy trocar of structure as described in claim 1, it is characterised in that the seal wire needle stalk and institute State the length that the length that seal wire needle point adds up is greater than described sleeve pipe needle.