CN217772384U

CN217772384U - Disposable biopsy needle

Info

Publication number: CN217772384U
Application number: CN202221642605.7U
Authority: CN
Inventors: 田海峰; 王晓彩; 关庆超; 朱波; 兰百龙
Original assignee: Heilongjiang Shenghua Medical Equipment Co ltd
Current assignee: Heilongjiang Shenghua Medical Equipment Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-11-11
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses a disposable biopsy needle belongs to medical equipment technical field, a disposable biopsy needle includes the pjncture needle, the pjncture needle includes outer needle file, the one end of outer needle file is provided with outer needle tube, outer needle tube outside cover is equipped with the sheath that is connected with outer needle file, the one end that outer needle tube was kept away from to outer needle file is equipped with interior needle file, the one end that interior needle file is close to outer needle tube is connected with the inner needle tube that sets up in outer needle tube inside, the one end that outer needle tube was kept away from to outer needle file is connected with liquid storage tube through the connector, liquid storage tube includes the test tube, the test tube outside is provided with the tube cap, the open end of test tube is provided with the sealing plug, the connector is linked together through sealing plug and intraduct, the intraduct that is equipped with the negative pressure in the test tube has automatic extraction, avoids repeatedly pulling out, accurate partial shipment, avoids polluting and safe and reliable's advantage.

Description

Disposable biopsy needle

Technical Field

The utility model relates to the technical field of medical equipment, specifically relate to a disposable biopsy needle.

Background

Biopsy sampling and effusion extraction are currently common body fluid extraction methods, such as amniotic fluid of pregnant women, abdominal effusion, pleural effusion biopsy sampling inspection and extraction of abdominal effusion and pleural effusion. Biopsy sampling and effusion extraction are carried out to establish an internal and external channel through a biopsy needle, an injector is generally used for extraction, and then the sample is taken to a test room and is subpackaged into different reagent bottles according to the use amount of test items for testing and discharging.

In the actual operation in-process doctor often will extract the amniotic fluid, first pipe liquid when the hydrops is discharged, then extract the body fluid that needs the inspection many times repeatedly, and when taking unnecessary hydrops out, also need extract many times repeatedly because of the syringe is capacious, because pull out the syringe repeatedly, the doctor exerts oneself inhomogeneously, harm foetus and patient's internal organ very easily, the painful sense of patient is obvious, and the partial shipment in-process needs to pull out the amniotic fluid in the needle tubing or hydrops partial shipment to a plurality of test tubes of difference, cause the pollution easily, and the partial shipment volume is not accurate, it is too big to cause the testing result deviation, make the doctor cause the diagnostic error, from top to bottom, there is the not accurate shortcoming of syringe and partial shipment volume of pulling out repeatedly in current amniotic fluid or hydrops extraction process, be difficult to obtain popularization and application.

Therefore, there is a need to provide a single use biopsy needle that addresses the above-mentioned problems.

Disclosure of Invention

To the deficiency that prior art exists, the embodiment of the utility model provides a disposable biopsy needle to solve the problem in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a disposable biopsy needle, includes the pjncture needle, the pjncture needle includes outer needle file, the one end of outer needle file is provided with outer needle tubing, outer needle tubing outside cover is equipped with the sheath that is connected with outer needle file, the one end that outer needle tubing was kept away from to outer needle file is equipped with interior needle file, the one end that interior needle file is close to outer needle tubing is connected with the interior needle tubing that sets up in outer needle tubing inside, the one end that outer needle tubing was kept away from to outer needle file is connected with liquid receiver through the connector, liquid receiver includes the test tube, the test tube outside is provided with the tube cap, the open end of test tube is provided with the sealing plug, the connector is linked together through sealing plug and test tube inside, be equipped with the negative pressure in the test tube.

As a further aspect of the present invention, the one end of the outer needle tube away from the outer needle seat is provided with an outer needle point, the one end of the inner needle tube away from the inner needle seat is provided with an inner needle point, and the outer needle point and the inner needle point all have a first inclined plane α, a second inclined plane β and a third inclined plane γ.

As a further aspect of the present invention, the angle range of the first inclined plane α is 8 to 10 °, the angle range of the second inclined plane β is 15 to 17 °, and the angle range of the third inclined plane γ is 28 to 30 °.

As a further aspect of the present invention, the one end of the outer needle base away from the outer needle tube is provided with a self-locking slide, and the one end of the self-locking slide away from the outer needle base is provided with a connecting hole.

As a further scheme of the utility model, the connector includes the connecting seat, the one end that the connecting seat is close to outer needle file is provided with the locking joint with auto-lock slide looks adaptation, the one end that the locking joint was kept away from to the connecting seat is provided with the connecting pipe, the one end that the connecting seat was kept away from to the connecting pipe is provided with wears bottle needle file, the one end that wears bottle needle file to keep away from the connecting pipe is connected with wears the bottle needle, it is provided with and wears the needle holder that bottle needle file is connected to wear the bottle needle outside.

As a further aspect of the present invention, the locking joint includes a connecting hole joint, the connecting hole joint is internally provided with an inner spiral line spirally matched with the self-locking slide way, and the connecting hole joint is close to one end of the outer needle seat and is matched with the connecting hole.

As a further proposal of the utility model, the outer needle tube is a hollow tube with scales, the inner needle tube is a solid tube, and the inner needle seat is provided with a self-locking buckle.

As a further scheme of the utility model, it is provided with the fixer to slide between outer needle tubing and the sheath, the fixer sets up about outer needle tubing symmetry, one side that the fixer is close to each other is provided with the fixed slot and the fixed hook of mutual adaptation respectively, is connected through the connecting band between two fixers.

As a further proposal of the utility model, one end of the test tube, which is far away from the sealing plug, is arranged as a conical bottom.

To sum up, compared with the prior art, the embodiment of the utility model has following beneficial effect:

1. the utility model can enhance the strength of the puncture needle through the design of the inner needle, the outer needle and the needle tip inclined plane, ensure smooth puncture, avoid the human tissue components from being infused into the outer needle tube during the puncture operation, reduce the wound surface, be beneficial to wound healing and reduce the pain of patients,

2. the utility model discloses the nimble dismouting of pjncture needle, connector and liquid storage pipe can carry out automatic extraction to amniotic fluid or hydrops, has avoided pulling out repeatedly of pjncture needle, and the safety of guarantee foetus and internal organ has improved the security performance.

3. The utility model discloses at amniotic fluid or hydrops partial shipment in-process, can carry out accurate control to the partial shipment volume, improved and detected the precision, the quantity value can be accurate to within 5%, possesses automatic extraction, accurate partial shipment, avoids polluting and safe and reliable's technological effect, and help doctor's diagnosis is more accurate.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural view of the puncture needle in the embodiment of the utility model.

Fig. 3 is a schematic structural diagram of a connector according to an embodiment of the present invention.

Fig. 4 is a schematic view of the liquid storage tube in the embodiment of the present invention.

Fig. 5 is a schematic structural view of a fastener according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of the outer needle tip in the embodiment of the utility model.

Fig. 7 is a schematic view of the inner needle tube according to the embodiment of the present invention.

Fig. 8 is a schematic structural view of a locking joint in an embodiment of the present invention.

Reference numerals: 1-puncture needle, 101-sheath, 102-outer needle tip, 1021-outer needle tip wall, 1022-inner needle tip wall, 1023-first inclined plane, 1024-second inclined plane, 1025-third inclined plane, 103-outer needle tube, 104-scale, 105-fixer, 1051-fixing groove, 1052-fixing hook, 1053-connecting band, 106-outer needle seat, 107-self-locking slideway, 108-connecting hole, 109-inner needle tip, 110-inner needle tube, 111-self-locking buckle, 112-inner needle seat, 2-connector, 201-locking connector, 2011-connecting hole connector, 2012-inner spiral thread, 202-connecting seat, 203-connecting tube, 204-friction rib, 205-bottle-puncture needle seat, 206-bottle-puncture needle, 207-needle sleeve, 208-needle holder, 3-liquid storage tube, 301-test tube, 302-sealing plug, 303-tube cap, 304-scale, 305-conical bottom.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following detailed description is provided for the specific embodiments of the present invention.

In an embodiment of the present invention, refer to fig. 1, fig. 2, fig. 4 and fig. 7, a disposable biopsy needle, including pjncture needle 1, pjncture needle 1 includes outer needle file 106, the one end of outer needle file 106 is provided with outer needle tube 103, outer needle tube 103 outside cover is equipped with sheath 101 that is connected with outer needle file 106, the one end that outer needle tube 103 was kept away from to outer needle file 106 is equipped with interior needle file 112, the one end that interior needle file 112 is close to outer needle tube 103 is connected with the interior needle tube 110 that sets up in the inside of outer needle tube 103, the one end that outer needle tube 103 was kept away from to outer needle file 106 is connected with reservoir tube 3 through connector 2, reservoir tube 3 includes test tube 301, the test tube 301 outside is provided with tube cap 303, the open end of test tube 301 is provided with the sealing plug 302, connector 2 is linked together through 302 and test tube 301 is inside, be equipped with the negative pressure in the test tube 301.

In this embodiment, the inner needle tube 110 is inserted into the outer needle tube 103, the inner needle tube 110 is a solid tube, the inner needle hub 112 is provided with the self-locking buckle 111, the matching connection between the outer needle hub 106 and the inner needle hub 112 can be realized through the self-locking buckle 111, the outer needle tube 103 is inserted into amniotic fluid or effusion in the skin, the strength of the puncture needle can be enhanced, the human tissue components are prevented from being poured into the outer needle tube during the puncture operation, the wound surface can be reduced, the wound healing is facilitated, the pain of a patient is reduced, the inner needle tube 110 is pulled out, the matching connection between the outer needle tube 103 and the inner needle tube 110 is released, one end of the connector 2 is connected with the outer needle hub 106, the other end of the connector 2 is connected with the test tube 301, because of the negative pressure in the test tube 301, amniotic fluid or hydrops can loop through outer needle tubing 103 and connector 2 under the promotion of pressure and flow into in test tube 301, accomplish the purpose of extraction, when amniotic fluid or hydrops reach suitable volume in test tube 301, remove connector 2 and test tube 301's connection, when needs continue to extract amniotic fluid or hydrops, be connected connector 2's one end with another test tube 301, can realize the partial shipment of amniotic fluid and hydrops, the relapse of pjncture needle 1 is avoided pulling out, the security has been improved, wherein, be provided with scale 304 on test tube 301, through scale 304, the staff of being convenient for carries out accurate collection to amniotic fluid or hydrops, test tube 301 keeps away from the one end of sealing plug 302 and sets up to 305 at the bottom of the toper, through 305 at the bottom of the toper, be convenient for extract the tissue.

In an embodiment of the present invention, referring to fig. 1, 2, 6 and 7, an end of the outer needle tube 103 away from the outer needle seat 106 is provided with an outer needle point 102, an end of the inner needle tube 110 away from the inner needle seat 112 is provided with an inner needle point 109, and the outer needle point 102 and the inner needle point 109 are respectively composed of a first slope α 1023, a second slope β 1024 and a third slope γ 1025.

In this embodiment, through outer needle point 102 and interior needle point 109 that first inclined plane α 1023, second inclined plane β 1024 and third inclined plane γ 1025 constitute, be convenient for pjncture needle 1 to pierce patient's skin inside and with amniotic fluid or hydrops contact, realize the extraction operation of amniotic fluid or hydrops, wherein, the angular range of first inclined plane α 1023 is 8-10, the angular range of second inclined plane β 1024 is 15-17, the angular range of third inclined plane γ 1025 is 28-30, the one end that outer needle bar 106 keeps away from outer needle tube 103 is provided with auto-lock slide 107, the one end that outer needle bar 106 is kept away from to auto-lock slide 107 is provided with connecting hole 108, outer needle tube 103 is the hollow tube that is equipped with scale 104, through scale 104, is convenient for the staff to know the depth of penetration, is convenient for the image to observe that the needle point gets into patient's inside position, avoids the needle point to touch foetus or other tissue, connecting hole 108 is the taper hole, be provided with needle point outer wall 1021 and inner wall 1022 on outer needle point 102.

In an embodiment of the present invention, referring to fig. 1, fig. 3 and fig. 8, the connector 2 includes a connecting seat 202, one end of the connecting seat 202 close to the outer needle seat 106 is provided with a locking joint 201 adapted to the self-locking slide way 107, one end of the connecting seat 202 far away from the locking joint 201 is provided with a connecting pipe 203, one end of the connecting pipe 203 far away from the connecting seat 202 is provided with a bottle-threading needle seat 205, one end of the bottle-threading needle seat 205 far away from the connecting pipe 203 is connected with a bottle-threading needle 206, the outside of the bottle-threading needle 206 is provided with a needle holder 208 connected with the bottle-threading needle seat 205.

In this embodiment, the locking joint 201 includes a connecting hole joint 2011, the inside of the connecting hole joint 2011 is provided with an internal spiral thread 2012 which is in spiral fit with the self-locking slideway 107, one end of the connecting hole joint 2011, which is close to the outer needle seat 106, is adapted to the connecting hole 108, when the puncture needle 1 is punctured into the skin of a patient, the bottle-penetrating needle 206 is penetrated into the test tube 301 through the sealing plug 302 through the connecting hole joint 2011, and because of the negative pressure existing in the test tube 301, amniotic fluid or effusion can sequentially pass through the outer needle tube 103, the connecting seat 202, the connecting tube 203, the bottle-penetrating needle seat 205 and the bottle-penetrating needle 206 to flow into the test tube 301, so as to realize the collection of the amniotic fluid or the effusion, wherein one end of the bottle-penetrating needle seat 205, which is close to the connecting tube 203, is provided with a friction rib 204, the outer side of the bottle-penetrating needle 206 is provided with a needle sleeve 207, and the bottle-penetrating needle 206 can be subjected to dustproof treatment through the needle sleeve 207.

In an embodiment of the present invention, referring to fig. 1, 2 and 5, the fixator 105 is slidably disposed between the outer needle 103 and the sheath 101, the fixator 105 is symmetrically disposed about the outer needle 103, one side of the fixator 105 close to each other is respectively provided with a fixing groove 1051 and a fixing hook 1052, which are adapted to each other, and the two fixators 105 are connected by a connecting band 1053.

In this embodiment, the retainers 105 at both sides can be stably coupled by the coupling between the holding groove 1051 and the holding hook 1052, and when it is shown in the image that the outer needle tip 102 has reached the sampling position, the retainers 105 are fixed to the outer skin of the patient to prevent the outer needle tip 102 from moving and damaging the fetus or organs, and the coupling between the holding groove 1051 and the holding hook 1052 is released to facilitate the movement of the retainers 105 on the outer needle tube 103.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a disposable biopsy needle, includes the pjncture needle, its characterized in that, the pjncture needle includes outer needle file, the one end of outer needle file is provided with outer needle tubing, outer needle tubing outside cover is equipped with the sheath that is connected with outer needle file, the one end that outer needle tubing was kept away from to outer needle file is equipped with interior needle file, the one end that interior needle file is close to outer needle tubing is connected with the interior needle tubing that sets up in outer needle tubing inside, the one end that outer needle tubing was kept away from to outer needle file is connected with the liquid receiver through the connector, the liquid receiver includes the test tube, the test tube outside is provided with the tube closure, the open end of test tube is provided with the sealing plug, the connector is linked together through inside with the test tube, be equipped with the negative pressure in the test tube.

2. The biopsy needle of claim 1, wherein the outer needle cannula is provided with an outer needle tip at an end thereof remote from the outer needle hub, the inner needle cannula is provided with an inner needle tip at an end thereof remote from the inner needle hub, and the outer needle tip and the inner needle tip are each formed with a first slope α, a second slope β and a third slope γ.

3. The single use biopsy needle of claim 2, wherein the first slope a is in the range of 8-10 °, the second slope β is in the range of 15-17 °, and the third slope γ is in the range of 28-30 °.

4. The single use biopsy needle of claim 1, wherein the end of the outer needle hub distal from the outer needle cannula is provided with a self-locking slideway, and the end of the self-locking slideway distal from the outer needle hub is provided with a connecting hole.

5. The disposable biopsy needle according to claim 4, wherein the connector comprises a connecting base, a locking joint adapted to the self-locking slide way is arranged at one end of the connecting base close to the outer needle base, a connecting pipe is arranged at one end of the connecting base far away from the locking joint, a bottle-threading needle base is arranged at one end of the connecting pipe far away from the connecting base, a bottle-threading needle is connected to one end of the bottle-threading needle base far away from the connecting pipe, and a needle holder connected to the bottle-threading needle base is arranged outside the bottle-threading needle.

6. The single use biopsy needle of claim 5, wherein the locking connector comprises a connecting hole connector, the connecting hole connector is internally provided with an internal spiral thread which is in spiral fit with the self-locking slideway, and one end of the connecting hole connector close to the outer needle base is matched with the connecting hole.

7. The single use biopsy needle of claim 1, wherein the outer needle tube is a graduated hollow tube, the inner needle tube is a solid tube, and the inner needle hub is provided with a self-locking catch.

8. The biopsy needle for single use according to claim 1, wherein said outer needle tube and said sheath are slidably provided with retainers, said retainers are symmetrically arranged with respect to said outer needle tube, one side of said retainers close to each other is provided with a fixing groove and a fixing hook, respectively, which are adapted to each other, and said two retainers are connected with each other by a connecting band.

9. The single use biopsy needle of claim 1, wherein an end of the tube distal to the sealing plug is configured as a conical bottom.