CN107495989B - Multi-point testicular puncture needle - Google Patents
Multi-point testicular puncture needle Download PDFInfo
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- CN107495989B CN107495989B CN201710882071.2A CN201710882071A CN107495989B CN 107495989 B CN107495989 B CN 107495989B CN 201710882071 A CN201710882071 A CN 201710882071A CN 107495989 B CN107495989 B CN 107495989B
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0266—Pointed or sharp biopsy instruments means for severing sample
- A61B10/0275—Pointed or sharp biopsy instruments means for severing sample with sample notch, e.g. on the side of inner stylet
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/0045—Devices for taking samples of body liquids
- A61B10/0058—Devices for taking samples of body liquids for taking sperm samples
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
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- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/42—Gynaecological or obstetrical instruments or methods
- A61B17/425—Gynaecological or obstetrical instruments or methods for reproduction or fertilisation
- A61B17/43—Gynaecological or obstetrical instruments or methods for reproduction or fertilisation for artificial insemination
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B2010/0208—Biopsy devices with actuators, e.g. with triggered spring mechanisms
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Abstract
The invention relates to a multipoint testicle puncture needle which comprises an inner side needle head fixing slide block, an outer side needle head fixing slide block, an inner side buckle, an outer side buckle, an inner side sliding groove, an outer side sliding groove, an inner side spring, an outer side spring, a control button, a protective shell, an inner side puncture needle and an outer side puncture needle. Its advantages are: the multipoint testicle puncture needle can penetrate out enough tissues through multipoint biopsy puncture, can be used for histopathological examination and convenient for estimating the testicle spermatogenic function, can also be used for direct microscopic examination to find sperms for in vitro fertilization in the process of test-tube babies, has small damage to the tissues, is convenient to operate and good in safety, can become a novel puncture instrument, and has wide application prospect in clinical popularization.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a multi-point testicle puncture needle.
Background
According to the World Health Organization (WHO), about 10-15% of women of childbearing age worldwide have the problem of infertility, wherein male factors account for about half of the infertility. Among male infertility, azoospermia is undoubtedly the most serious problem. In the diagnosis and treatment of azoospermia, testicular puncture or testicular biopsy plays an important role in diagnosis and typing of azoospermia and decision of a next treatment scheme.
Testicular puncture is a new technology developed in recent years, and with the rapid development of applying human assisted reproductive technology to infertility treatment, especially the evaluation of sperms collection or sperms generation through testicular puncture is more and more required for sperm injection in egg cells, so that the updating of devices for testicular puncture is more urgent.
The devices used in the prior art for testicular puncture suffer from the following deficiencies and drawbacks:
1. the traditional testicle puncture method has the defects that the puncture tissue is few, on one hand, histopathology examination cannot be carried out, and on the other hand, the probability of finding sperms is reduced. While testicle biopsy can obtain more testicle tissues and meets the requirements of histopathology examination, on one hand, the time consumption is long, and on the other hand, generally only a certain point can be selected for biopsy and the spermatogenic condition of the whole testicle cannot be represented.
2. Currently, a chenille needle is commonly used for testis biopsy in clinic, which uses negative pressure to suck biopsy tissue into a biopsy needle core from a side hole of the needle, and then the biopsy tissue is obtained by rotating the biopsy needle core. Such a device has the following technical drawbacks: under the condition that the extraction of the living testicle tissue is not ideal, the testicle of the patient needs to be punctured again or even for many times until the ideal living testicle tissue is obtained, so that the patient is extremely painful, and the infection probability of the patient is increased;
3. the prior art testicular puncture needles typically include a core and a needle cannula. When puncturing, the medical staff holds the testis with one hand and pierces the front end of the needle sleeve and the needle core into the testis with the other hand to obtain testis tissue and testis tissue fluid. However, in the above puncturing process, the shortest distance between the two hands of the medical staff is not fixed, and once the medical staff applies too much force, the needle may be inserted too deeply or even penetrate, which may cause secondary injury, and in addition, the hands of the medical staff or the part outside the puncturing of the patient may be easily pricked during the operation, which may cause iatrogenic injury.
Chinese patent document CN03203228.5, application date 20030213, with patent names: a porous epididymis puncture needle is disclosed, which comprises a needle seat, wherein a needle tube is arranged on the needle seat, a through hole is formed in the needle tube, a side hole is formed in the needle tube, the end of the needle tube is in an inclined plane shape, a fixing sleeve is arranged on the outer side wall of the needle tube, and one end of the fixing sleeve is connected with the needle seat.
The puncture needle disclosed in the patent document has the advantages of direct puncture of testis, no wound, no pollution, no sequelae, reduced pain of patients, easy control of the depth of the needle insertion, and ensured accuracy and safety of operation. However, the technical scheme that enough tissues can be penetrated out through multi-point biopsy puncture to carry out direct microscopic examination to find the sperms for taking the sperms needed on the day of egg taking in the in vitro fertilization process of the test tube baby has small damage to the tissues, can be used for histopathological examination and convenient evaluation of the spermatic function of the testis, and has convenient and safe operation has no corresponding disclosure.
In summary, there is a need for a multi-point testicular puncture needle that can penetrate out enough tissue through multi-point biopsy puncture, on the one hand, can be used for histopathological examination, and conveniently evaluate the testicular spermatogenic function, and on the other hand, can also be used for direct microscopic examination to find sperms for in vitro fertilization in the process of test-tube infants, and that is convenient and safe to operate, and has not been reported about middle and multi-point testicular puncture needles at present.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a multi-point testicular puncture needle which can penetrate out enough tissues through multi-point biopsy puncture, can be used for histopathological examination and convenient evaluation of testicular spermatogenic function, can also be used for direct microscopic examination to find sperms for in vitro fertilization in the process of test-tube babies, and is convenient and safe to operate.
In order to achieve the purpose, the invention adopts the technical scheme that:
a multi-point testicle puncture needle comprises an inner needle head fixing slide block, an outer needle head fixing slide block, an inner buckle, an outer buckle, an inner sliding groove, an outer sliding groove, an inner spring, an outer spring, a control button, a protective shell, an inner puncture needle and an outer puncture needle; the inner side end of the protective shell is provided with a control button; the protective shell is provided with an outer side sliding groove and an inner side sliding groove, the boundary of the inner side sliding groove and the outer side sliding groove is connected with an outer side sliding block piece, and the boundary of the inner side sliding groove and the control button is connected with an inner side sliding block piece; an outer needle fixing sliding block is connected in the outer sliding groove, an outer buckle is arranged on the outer needle fixing sliding block and matched with the outer sliding block blocking piece, and an outer spring is arranged on the outer peripheral surface of the outer buckle; an inner needle fixing slide block is connected in the inner sliding groove, an inner buckle is arranged on the inner needle fixing slide block and matched with the inner slide block blocking piece, and an inner spring is arranged on the outer peripheral surface of the inner buckle; the outer side puncture needles are connected to the outer side needle head fixing sliding block, the inner side puncture needles are connected to the inner side needle head fixing sliding block, the number of the outer side puncture needles and the number of the inner side puncture needles are four, each outer side puncture needle and the corresponding inner side puncture needle form a set of puncture needle assembly, and each set of puncture needle assembly forms a puncture point; the inner side puncture needle is provided with a tissue groove; the inner side puncture needle passes through the channel in the outer side puncture needle in a puncture state, and the outer side puncture needle and the inner side puncture needle are in a tight fit mode.
As a preferred technical scheme, the outer side buckle and the inner side buckle are both provided with two tongue pieces, and the tongue pieces are in a barb shape.
As a preferred technical scheme, the control button and the inner side needle head fixing slide block are respectively provided with a buckle cavity, and the buckle cavity is internally provided with an inclined plane matched with the tongue piece.
As a preferable technical scheme, the cross sections of the main bodies of the inner needle head fixing sliding block and the outer needle head fixing sliding block are both in a cross shape; the outer side sliding grooves and the inner side sliding grooves are two and are distributed on the protective shell from top to bottom.
As a preferable technical scheme, the number of the outer side puncture needles and the number of the inner side puncture needles are four, four puncture points are formed by the same shape, and the four puncture points are distributed in central symmetry.
As a preferred technical scheme, the cross sections of the main bodies of the inner needle fixing sliding block and the outer needle fixing sliding block are both in a cross shape.
As a preferred technical scheme, the number of the outer side sliding grooves and the number of the inner side sliding grooves are two, and the outer side sliding grooves and the inner side sliding grooves are distributed on the protection shell up and down.
As a preferable technical solution, the outer sliding groove and the inner sliding groove are coaxially arranged.
As a preferable technical scheme, the lateral sliding block blocking piece and the medial sliding block blocking piece are both provided with wedge-shaped surfaces.
As a preferred technical scheme, still be equipped with the fixation clamp on the protection casing, the fixation clamp comprises two clamping pieces, and the clamping piece distal end is arc claw form, and the clamping piece near-end is articulated with the protection casing, and the clamping piece is equipped with the spring leaf with the junction of protection casing.
The invention has the advantages that:
1. the multipoint testicle puncture needle can penetrate out enough tissues through multipoint biopsy puncture, can be used for histopathological examination and convenient for estimating the testicle spermatogenic function, can also be used for direct microscopic examination to find sperms for in vitro fertilization in the process of test-tube babies, is convenient to operate and good in safety, can be a novel puncture instrument, and has wide application prospect in clinical popularization;
2. the protective shell is arranged to play a role in protecting the appearance; the outer side needle head fixing sliding block and the inner side needle head fixing sliding block are both provided with protruding control parts which can slide manually, so that the operation is convenient;
3. the outer side needle head fixing sliding block and the inner side needle head fixing sliding block are arranged, the outer side puncture needle is connected onto the outer side needle head fixing sliding block, the inner side puncture needle is connected onto the inner side needle head fixing sliding block, when the outer side needle head fixing sliding block is matched with the inner side needle head fixing sliding block, the outer side puncture needle can be triggered and controlled to slide for puncture, when a control button is matched with the inner side needle head fixing sliding block, the inner side puncture needle can be triggered to slide for puncture, and only the control button needs to be directly operated, the outer side puncture needle and the inner side puncture needle can be punctured, so that the;
4. the tongue piece is designed into a barb shape, and has the functions of fixing and unlocking;
5. the outer side sliding block blocking piece and the inner side sliding block blocking piece are arranged, on one hand, the outer side sliding block blocking piece and the inner side sliding block blocking piece are used for fixing the outer side needle head fixing sliding block and the inner side needle head fixing sliding block, on the other hand, the distance and the stroke of the outer side sliding groove and the inner side sliding groove are limited, and the puncture force is controllable;
6. the tissue groove is arranged on the inner side puncture needle to provide a place for puncturing tissues and avoid the falling of the tissues;
7. the puncture provides a driving force by releasing elastic potential energy through the inner spring and the outer spring, so that the inner puncture needle and the outer puncture needle are pushed to perform puncture work, the puncture process is rapid and accurate, and the puncture success rate is high;
8. the outer side sliding groove and the inner side sliding groove are coaxially arranged, so that the outer side puncture needle and the inner side puncture needle can be precisely matched in the puncture process, and tissues can be conveniently obtained;
9. the cross sections of the outer side needle head fixing sliding block and the inner side needle head fixing sliding block are in a cross-shaped design, an outer side puncture needle and an inner side puncture needle can be fixed on each branch in the design mode, namely the number of the outer side puncture needles and the number of the inner side puncture needles are four, each outer side puncture needle and each inner side puncture needle form a group to form four puncture points, four tissues can be obtained at the same time, the total number of the four puncture points is four, and multi-point puncture is realized;
10. the protective shell is provided with the fixing clamp, so that the operation of a doctor is facilitated to replace the manual support of a testis, the stable penetration of the outer side puncture needle and the inner side puncture needle is ensured, and the phenomenon of over-deep needle insertion or penetration is avoided; meanwhile, the hands of a doctor are replaced, the pricking injury is avoided, and the safety is good.
Drawings
FIG. 1 is a schematic view of the contraction state of the multi-point testicular puncture needle of the present invention.
Fig. 2 is a schematic view of the release state of the multi-point testicular puncture needle of the present invention.
Fig. 3 is a schematic cross-sectional view of the multi-point testicular puncture needle of the present invention.
Fig. 4 is a partially enlarged schematic view of the multi-point testicular puncture needle of the present invention.
Fig. 5 is a schematic diagram showing the relative position change of the inner puncture needle and the outer puncture needle in the puncture state.
Fig. 6 is a schematic cross-sectional view of a multi-point testicular puncture needle of the present invention.
Fig. 7 is a schematic view of the connection of the multi-point testicular puncture needle of the present invention with a fixation clamp. Referring to fig. 8 of the drawings,
fig. 8 is a left side view of the multi-point testicular puncture needle and fixation clamp of the present invention.
Detailed Description
The following detailed description of the present invention will be made with reference to the accompanying drawings.
The reference numerals and components referred to in the drawings are as follows:
1. outer needle head fixing slide block 2 and inner needle head fixing slide block
3. Outside buckle 4. inside buckle
5. Outer spring 6. inner spring
7. Outer sliding groove 8, inner sliding groove
9. Control button 10. protective housing
11. Outboard slide stop 12, inboard slide stop
13. Tongue 14, snap cavity
15. Inclined plane 16, inner puncture needle
17. Outer puncture needle 18 tissue groove
19. Wedge surface 20. fixing clamp
For the sake of clarity of the description of the entire solution, the following description uses the terms "outside" and "inside", wherein "outside" is set with reference to the orientation reference of fig. 1, i.e. directly to the left of fig. 1 is defined as "outside" and right as "inside".
Referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a schematic view showing a contraction state of the multi-point testicular puncture needle of the present invention. Fig. 2 is a schematic view of the release state of the multi-point testicular puncture needle of the present invention. Fig. 3 is a schematic cross-sectional view of a multi-point testicular puncture needle of the present invention. A multi-point testicular puncture needle comprises an inner needle fixing slide block 2, an outer needle fixing slide block 1, an inner buckle 4, an outer buckle 3, an inner sliding groove 8, an outer sliding groove 7, an inner spring 6, an outer spring 5, a control button 9, a protective shell 10, an inner puncture needle 16 and an outer puncture needle 17; the inner side end of the protective shell 10 is provided with a control button 9; an outer sliding groove 7 and an inner sliding groove 8 are arranged on the protective shell 10, the boundary between the inner sliding groove 8 and the outer sliding groove 7 is connected with an outer sliding block blocking piece 11, and the boundary between the inner sliding groove 8 and the control button 9 is connected with an inner sliding block blocking piece 12; an outer needle fixing sliding block 1 is connected in the outer sliding groove 7, an outer buckle 3 is arranged on the outer needle fixing sliding block 1, the outer buckle 3 is matched with an outer sliding block blocking piece 11, and an outer spring 5 is arranged on the outer peripheral surface of the outer buckle 3; the inner side sliding groove 8 is connected with an inner side needle fixing sliding block 2, the inner side needle fixing sliding block 2 is provided with an inner side buckle 4, the inner side buckle 4 is matched with the inner side sliding block piece 12, and the outer peripheral surface of the inner side buckle 4 is provided with an inner side spring 6.
Referring to fig. 4, fig. 4 is a partially enlarged schematic view of the multi-point testicular puncture needle of the present invention. The outer side buckle 3 and the inner side buckle 4 are both provided with two tongue pieces 13 which are in a barb shape; the control button 9 and the inner side needle fixing slide block 2 are both provided with a buckling cavity 14, and the buckling cavity 14 is internally provided with an inclined surface 15 matched with the tongue piece 13.
Referring to fig. 5, fig. 5 is a schematic diagram showing the relative position change of the inner puncture needle 16 and the outer puncture needle 17 in the puncture state. The inner side puncture needle 16 is provided with a tissue groove 18; the inner puncture needle 16 passes through a channel in the outer puncture needle 17 in a puncture state, the outer puncture needle 17 and the inner puncture needle 16 are in a tight fit mode, and the aperture difference of the two sizes is small.
Referring to fig. 6, fig. 6 is a cross-sectional view of the multi-point testicular puncture needle of the present invention. The cross sections of the main bodies of the inner side needle head fixing slide block 2 and the outer side needle head fixing slide block 1 are both in a cross shape; the two outer sliding grooves and the two inner sliding grooves 8 are distributed on the protective shell 10 from top to bottom; the number of the outer side puncture needles 17 and the number of the inner side puncture needles 16 are four, and each outer side puncture needle 17 and the corresponding inner side puncture needle 16 form a set to form a puncture needle assembly.
Referring to fig. 7 and 8, fig. 7 is a schematic view showing the connection between the multi-point testicular puncture needle of the present invention and the retainer clip 20. Referring to fig. 8, fig. 8 is a left side view of the multi-point testicular puncture needle and the retainer clip 20 of the present invention. Still be equipped with fixation clamp 20 on the protection casing 10, fixation clamp 20 comprises two clamping pieces, and the clamping piece distal end is arc claw form, and the clamping piece near-end is articulated with protection casing 10, and the junction of clamping piece and protection casing 10 is equipped with the spring leaf.
It should be noted that: the outer needle fixing slide block 1 and the inner needle fixing slide block 2 are both made of resin materials, one end of the outer needle fixing slide block 1 is connected with an outer puncture needle 17 and can slide in the outer sliding groove 7, and one end of the inner needle fixing slide block 2 is connected with an inner puncture needle 16 and can slide in the inner sliding groove 8; the outer side needle head fixing slide block 1 and the inner side needle head fixing slide block 2 are both provided with protruding control parts which can slide manually; the length of the outer puncture needle 17 and the inner puncture needle 16 is 20 cm.
The outer sliding groove 7 provides a sliding track for the outer needle fixing sliding block 1, and the inner sliding groove 8 provides a sliding track for the inner needle fixing sliding block 2; the outer sliding groove 7 and the inner sliding groove 8 are coaxially arranged, so that the outer puncture needle 17 and the inner puncture needle 16 can be precisely matched in the puncture process, and the tissue can be conveniently obtained.
The outer side needle head fixing slide block 1 is matched with the inner side needle head fixing slide block 2 to trigger and control the outer side puncture needle 17 to slide for puncture, and the control button 9 is matched with the inner side needle head fixing slide block 2 to trigger the inner side puncture needle to slide for puncture. And the outer side puncture needle 17 and the inner side puncture needle 16 can be punctured only by directly operating the control button 9, so that the design is ingenious and the puncturing is convenient.
Outside spout block piece 11 and inboard spout block piece 12, be used for fixed outside syringe needle solid fixed sliding block 1 and inboard syringe needle solid fixed sliding block 2 on the one hand, on the other hand has restricted outside slip recess 7 and inboard slip recess 8 apart from the stroke, because of different distance strokes, can produce the puncture dynamics of equidimension not, set up as required promptly. In addition, the lateral and medial slide stops 11, 12 are each provided with a wedge surface 19, the wedge surface 19 being configured to facilitate insertion and withdrawal of the tongue 13.
The inner side puncture needle 16 is provided with a tissue groove 18, in the puncture process, the tissue groove 18 contains testicular tissues, then the testicular tissues penetrate along the outer peripheral surface of the inner side puncture needle 16 through the outer side puncture needle 17, and because the outer side puncture needle 17 is tightly matched with the inner side puncture needle 16, the outer side puncture needle 17 can cut the testicular tissues contained in the tissue groove 18 in the puncture process, so that testicular tissues are obtained, enough tissues can be obtained to be convenient for obtaining, and the sperms are used for pathology examination or detected to be directly used for in vitro fertilization. In addition, in the withdrawing process, the convex control part of the inner needle fixing slide block 2 can be manually operated to enable the inner buckle 4 to return to be matched with the inner slide block piece 12 for locking, and the convex control part of the outer needle fixing slide block 1 can be manually operated to enable the outer buckle 3 to return to be matched with the outer slide block piece 11 for locking.
After the inner puncture needle 16 enters the human tissue, the outer needle fixing slide block 1 is triggered, the outer puncture needle 17 can rapidly cut the tissue of the patient under the pushing action of the force of the outer spring 5, and the puncture process is rapid. The pain of the patient is greatly reduced because the operation is completed in a short time.
The cross section of outside syringe needle solid fixed sliding block 1 and inboard syringe needle solid fixed sliding block 2 be the cross design, this design can fix outside pjncture needle 17 and inboard pjncture needle 16 on every branch, outside pjncture needle 17 and inboard pjncture needle 16 are total four respectively promptly, every outside pjncture needle 17 and inboard pjncture needle 16 are a set of four puncture points of formation, can obtain four organizations simultaneously, form four puncture points altogether, and four puncture points are centrosymmetric's form and distribute, realized the multiple spot puncture. In the four-point puncture preferred in this embodiment, on the basis of this principle, other modes of multi-point puncture, such as two-point puncture, three-point puncture, or five-point puncture, are designed, which are all within the protection scope of this embodiment, and are not limited to the four-point puncture in this embodiment.
The protective shell 10 is provided with the fixing clamp 20, so that the operation of a doctor is facilitated to replace the manual holding of a testis, the outer side puncture needle 17 and the inner side puncture needle 16 can be ensured to be stably penetrated, and the phenomenon of over-deep needle insertion or penetration is avoided; meanwhile, the hands of a doctor are replaced, the pricking injury is avoided, and the safety is good. In the use state of the fixing clip 20, when the fixing clip 20 is held by hand, the fixing clip 20 can be opened by the solid thread part, the puncture needle is put in place, the spring leaf is arranged under the holding part of the fixing clip 20, when the hand is released, the fixing clip 20 clamps the broken thread part, and the testis of the patient is clamped and fixed relative to the puncture needle.
The use method of the multi-point testicular puncture needle of the invention is as follows: starting the control button 9, releasing elastic potential energy by the inner side spring 6, triggering the inner side needle fixing slide block 2 to slide along the inner side sliding groove 8, stopping when the inner side needle fixing slide block 2 moves to the outer side needle fixing slide block 1, puncturing by the inner side puncture needle 16 in the process, simultaneously connecting the outer side needle fixing slide block 1, triggering the elastic potential energy by the outer side spring 5, and cutting tissues by the outer side puncture needle 17.
The multi-point testicular puncture needle can be used for histopathological examination to conveniently evaluate the testicular spermatogenic function, can also be used for direct microscopic examination to find sperms for in vitro fertilization in the process of test-tube babies, is convenient to operate and good in safety, can be a novel puncture instrument, and has wide application prospect in clinical popularization; the protective shell 10 is arranged to play a role in protecting the appearance; the outer side needle head fixing slide block 1 and the inner side needle head fixing slide block 2 are both provided with protruding control parts which can slide manually, so that the operation is convenient; the outer side needle fixing slide block 1 and the inner side needle fixing slide block 2 are arranged, the outer side puncture needle 17 is connected to the outer side needle fixing slide block 1, the inner side puncture needle 16 is connected to the inner side needle fixing slide block 2, when the outer side needle fixing slide block 1 is matched with the inner side needle fixing slide block 2, the outer side puncture needle 17 can be triggered to slide for puncture, when the control button 9 is matched with the inner side needle fixing slide block 2, the inner side puncture needle can be triggered to slide for puncture, and only the control button 9 needs to be directly operated, the outer side puncture needle 17 and the inner side puncture needle 16 can be punctured, the design is ingenious, and the puncture is convenient; the tongue piece 13 is arranged on the outer side buckle 3 and the inner side buckle 4, plays a role in fixing, and the tongue piece 13 is designed into a barb shape and has the functions of fixing and unlocking; the outer side sliding block blocking part 11 and the inner side sliding block blocking part 12 are arranged, on one hand, the outer side sliding block blocking part is used for fixing the outer side needle fixing sliding block 1 and the inner side needle fixing sliding block 2, on the other hand, the distance and the stroke of the outer side sliding groove 7 and the inner side sliding groove 8 are limited, and the puncture force is controllable; the tissue groove 18 is arranged on the inner puncture needle 16 to provide a place for puncturing tissues and avoid the falling of the tissues; the puncture provides a driving force by releasing elastic potential energy through the inner spring 6 and the outer spring 5, so that the inner puncture needle 16 and the outer puncture needle 17 are pushed to perform puncture work, the puncture process is rapid and accurate, and the puncture success rate is high; the outer sliding groove 7 and the inner sliding groove 8 are coaxially arranged, so that the outer puncture needle 17 and the inner puncture needle 16 can be precisely matched in the puncture process, and the tissue can be conveniently obtained; the cross sections of the outer side needle fixing slide block 1 and the inner side needle fixing slide block 2 are both in a cross-shaped design, an outer side puncture needle 17 and an inner side puncture needle 16 can be fixed on each branch in the design mode, namely the number of the outer side puncture needles 17 and the number of the inner side puncture needles 16 are four respectively, each outer side puncture needle 17 and each inner side puncture needle 16 form a group to form four puncture points, four tissues can be obtained simultaneously, four puncture points are formed in total, and multi-point puncture is realized; the protective shell 10 is provided with the fixing clamp 20, so that the operation of a doctor is facilitated to replace the manual holding of a testis, the outer side puncture needle 17 and the inner side puncture needle 16 can be ensured to be stably penetrated, and the phenomenon of over-deep needle insertion or penetration is avoided; meanwhile, the hands of a doctor are replaced, the pricking injury is avoided, and the safety is good.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and additions can be made without departing from the method of the present invention, and these modifications and additions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A multi-point testicular puncture needle is characterized in that the puncture needle comprises an inner needle head fixing slide block, an outer needle head fixing slide block, an inner buckle, an outer buckle, an inner sliding groove, an outer sliding groove, an inner spring, an outer spring, a control button, a protective shell, an inner puncture needle and an outer puncture needle; the inner side end of the protective shell is provided with a control button;
the protective shell is provided with an outer side sliding groove and an inner side sliding groove, the boundary of the inner side sliding groove and the outer side sliding groove is connected with an outer side sliding block piece, and the boundary of the inner side sliding groove and the control button is connected with an inner side sliding block piece; an outer needle fixing sliding block is connected in the outer sliding groove, an outer buckle is arranged on the outer needle fixing sliding block and matched with the outer sliding block blocking piece, and an outer spring is arranged on the outer peripheral surface of the outer buckle;
an inner needle fixing slide block is connected in the inner sliding groove, an inner buckle is arranged on the inner needle fixing slide block and matched with the inner slide block blocking piece, and an inner spring is arranged on the outer peripheral surface of the inner buckle;
the outer side puncture needles are connected to the outer side needle head fixing sliding block, the inner side puncture needles are connected to the inner side needle head fixing sliding block, the number of the outer side puncture needles and the number of the inner side puncture needles are four, each outer side puncture needle and the corresponding inner side puncture needle form a set of puncture needle assembly, and each set of puncture needle assembly forms a puncture point; the inner side puncture needle is provided with a tissue groove; the inner side puncture needle passes through the channel in the outer side puncture needle in a puncture state, and the outer side puncture needle and the inner side puncture needle are in a tight fit mode.
2. The multi-point testicular puncture needle of claim 1 wherein said outer clasp and said inner clasp are each provided with two tongues, the tongues being in the shape of barbs.
3. The multi-point testicular puncture needle of claim 1 wherein said control button and said inner needle retainer slider each have a snap cavity with an inclined surface for engaging said tongue.
4. The multi-point testicular puncture needle of claim 1 wherein said inner and outer needle retainer blocks are cross-shaped in cross-section; the outer side sliding grooves and the inner side sliding grooves are two and are distributed on the protective shell from top to bottom.
5. The multi-point testicular puncture needle of claim 1 wherein said lateral and medial puncture needles are four in number and form four puncture points, said four puncture points being arranged in a central symmetry.
6. The multi-point testicular puncture needle of claim 1 wherein said inner and outer needle retainer blocks are cross-shaped in cross-section.
7. The multi-point testicular puncture needle of claim 1 wherein said outer slide groove and said inner slide groove are both disposed vertically on said protective housing.
8. The multi-point testicular puncture needle of claim 1 wherein said outer sliding groove and said inner sliding groove are coaxially disposed.
9. The multi-site testicular puncture needle of claim 1 wherein said lateral and medial slide blocking members each have a wedge shaped face.
10. The multi-point testicular puncture needle of claim 1 further comprising a retaining clip on said protective housing, said retaining clip comprising two clips, said clips having distal ends in the form of arcuate fingers, proximal ends hingedly connected to said protective housing, and spring tabs at the junction of said clips and said protective housing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710882071.2A CN107495989B (en) | 2017-09-26 | 2017-09-26 | Multi-point testicular puncture needle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710882071.2A CN107495989B (en) | 2017-09-26 | 2017-09-26 | Multi-point testicular puncture needle |
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| CN107495989A CN107495989A (en) | 2017-12-22 |
| CN107495989B true CN107495989B (en) | 2020-04-17 |
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| CN201710882071.2A Active CN107495989B (en) | 2017-09-26 | 2017-09-26 | Multi-point testicular puncture needle |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108392229A (en) * | 2018-04-12 | 2018-08-14 | 上海埃斯埃医械塑料制品有限公司 | A kind of cell taking gun obtaining soft tissue |
| CN109620308A (en) * | 2019-01-31 | 2019-04-16 | 宁夏医科大学总医院 | Epididymis/testicular needle aspiration device |
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| CN2728432Y (en) * | 2002-09-23 | 2005-09-28 | 山东省计划生育科学技术研究所 | Porous epididymis puncture needle |
| CN205095146U (en) * | 2015-11-20 | 2016-03-23 | 南通大学附属医院 | Prevent stabbing pjncture needle |
| CN106659487A (en) * | 2014-05-19 | 2017-05-10 | 生物技术部秘书 | A non-reusable intra-osseous access device and method thereof |
| CN107174294A (en) * | 2017-06-01 | 2017-09-19 | 施康培医疗科技（武汉）有限公司 | A kind of secondary percussion biopsy needle device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2728432Y (en) * | 2002-09-23 | 2005-09-28 | 山东省计划生育科学技术研究所 | Porous epididymis puncture needle |
| CN106659487A (en) * | 2014-05-19 | 2017-05-10 | 生物技术部秘书 | A non-reusable intra-osseous access device and method thereof |
| CN205095146U (en) * | 2015-11-20 | 2016-03-23 | 南通大学附属医院 | Prevent stabbing pjncture needle |
| CN107174294A (en) * | 2017-06-01 | 2017-09-19 | 施康培医疗科技（武汉）有限公司 | A kind of secondary percussion biopsy needle device |
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| CN107495989A (en) | 2017-12-22 |
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