CN218356261U

CN218356261U - Ultrasonic suction biopsy needle

Info

Publication number: CN218356261U
Application number: CN202221865780.2U
Authority: CN
Inventors: 颜煜; 焦玉芬; 吕霄
Original assignee: Zhejiang Shouding Medical Technology Co ltd
Current assignee: Zhejiang Shouding Medical Technology Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2023-01-24
Anticipated expiration: 2032-07-19

Abstract

The utility model relates to the technical field of medical instruments, in particular to an ultrasonic suction biopsy needle, which comprises a scale rod, wherein a first handle is arranged at the outer side of one end of the scale rod; the other end of the scale rod is provided with a second handle; one end of the first handle, which is close to the scale rod, is provided with a handle end cap; one end of the first handle, which is far away from the scale rod, is provided with a luer locking joint; one end of the luer locking joint close to the scale rod is provided with a connecting pipe; needle tubes are arranged inside the scale rod, the first handle, the second handle, the handle end cap, the luer locking joint and the connecting tube; a mandrel is sleeved on the outer side of the needle tube; a mandrel end cap is sleeved on the outer side of the mandrel; an outer sheath tube is arranged in the second handle; the utility model discloses a holistic design, product overall structure distal end cover is in the endoscope middle-end outside, draws in the back far and near overall dimension unanimously, and the product structure is symmetrical, more accords with the use custom.

Description

Ultrasonic suction biopsy needle

Technical Field

The utility model relates to the technical field of medical equipment, specifically an ultrasonic suction biopsy needle.

Background

The disposable endoscope ultrasonic suction biopsy needle is matched with a flexible endoscope for use, is used for carrying out fine needle puncture biopsy and tissue sampling under the ultrasonic guidance of gastrointestinal mucosa injury and extramural injury, and is used for carrying out fine needle puncture sampling under the endoscopic ultrasonic guidance of trachea, submucosa of bronchus and extraluminal lesion.

Some technical solutions related to ultrasonic suction biopsy needles also appear in the prior art, for example, a chinese patent with application number CN103200878A discloses an endoscopic ultrasonic fine needle puncture device, which includes a proximal section, a middle section and a distal section, wherein the outer diameter of the middle section is smaller than the inner diameter of the proximal section, and the outer diameter of the distal section is smaller than the inner diameter of the middle section, wherein the middle section includes a mechanism for limiting movement.

In the prior art, the distal section of the whole structure of the ultrasonic suction biopsy needle needs to be locked on the endoscope, and the outer diameter of the distal section is minimum, which easily causes the condition that the product is heavy and light and is inconvenient to use, so the ultrasonic suction biopsy needle is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

To the existing problem, the utility model aims to provide an ultrasonic suction biopsy needle to solve the problem that proposes in the above-mentioned background art.

In order to solve the problem, the utility model adopts the following technical scheme:

an ultrasonic suction biopsy needle comprises a scale rod, wherein a first handle is arranged on the outer side of one end of the scale rod; the other end of the scale rod is provided with a second handle; one end of the first handle, which is close to the scale rod, is provided with a handle end cap, and the handle end cap is sleeved outside the scale rod; one end of the first handle, which is far away from the scale rod, is provided with a luer locking joint; a connecting pipe is arranged at one end of the Ruhr locking joint close to the scale rod, and the connecting pipe is positioned in the first handle; the needle tube is arranged inside the scale rod, the first handle, the second handle, the handle end cap, the luer locking joint and the connecting tube, and the end part of the needle tube extends to the outer side of the second handle; a mandrel is sleeved on the outer side of the needle tube; a mandrel end cap is sleeved on the outer side of the mandrel; an outer sheath tube is arranged in the second handle, and one end of the outer sheath tube extends to the outer side of the second handle; one end, far away from the first handle, of the mandrel end cap is positioned inside the outer sheath tube; and a group of adjusting and locking assemblies are arranged on the outer side of the rod body of the scale rod.

As a further aspect of the present invention: the adjusting and locking assembly comprises a limiting ring, an adjusting ring, a notch, an elastic buckle, limiting teeth, a locking cap and an extrusion arc-shaped plate; both ends of the outer side of the rod body of the scale rod are sleeved with limiting rings; the side, away from the limiting ring, of the limiting ring is fixedly connected with adjusting rings, and the adjusting rings are sleeved on the outer sides of the scale rods; one side of the adjusting ring is provided with a notch; elastic buckles are fixedly connected in the notches; one side of the outer ring surface of the scale rod is provided with a group of limiting teeth; a locking cap is sleeved on the outer side of the adjusting ring; the both sides of locking cap inside all the rigid coupling have the extrusion arc, and the thickness of extrusion arc is by thin thickening.

As a further aspect of the present invention: and end covers are fixedly connected to two ends of the scale rod.

As the utility model discloses further scheme again: and a protective tube is sleeved on the outer side of the mandrel end cap.

As the utility model discloses further scheme again: grooves are formed in the thickest end of each extrusion arc-shaped plate; salient points are fixedly connected to two sides of the adjusting ring.

As the utility model discloses further scheme again: the inboard equal rigid coupling of adjustable ring has the stopper.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model has the advantages that through the integral design, the distal end of the integral structure of the product is sleeved outside the middle end of the endoscope, the overall size of the product is consistent after the product is folded, the product structure is uniform, and the use habit is better met;

2. the utility model can press or release the inner side elastic buckle by rotating the locking cap, so that the elastic buckle can bite or release the limit teeth on the scale rod, the locking is easy and reliable, and the risk of loose locking and loss of the screw can be avoided;

3. the utility model discloses a rotatory luer lock joint of instrument drives and luer lock joint is connected to the needle tubing of being in the same place rotatory, makes the insertion angle of needle point blade more suitable.

Drawings

FIG. 1 is a perspective view of an ultrasonic aspiration biopsy needle;

FIG. 2 is a front view of an ultrasonic aspiration biopsy needle;

FIG. 3 isbase:Sub>A schematic sectional view taken from the bottom at A-A of FIG. 2 of an ultrasonic aspiration biopsy needle;

FIG. 4 is a schematic view of a locking cap of an ultrasonic aspiration biopsy needle;

FIG. 5 is a schematic view of the structure of the adjusting ring in the ultrasonic aspiration biopsy needle;

FIG. 6 is a partial structure diagram of the needle tip of the needle tube of the ultrasonic suction biopsy needle.

In the figure: 1. a graduated lever; 2. a first handle; 3. a second handle; 4. an end cap; 5. a handle end cap; 6. A luer lock fitting; 7. a connecting pipe; 8. a needle tube; 9. a mandrel; 90. a mandrel end cap; 10. an outer sheath tube; 11. adjusting the locking assembly; 111. a limiting ring; 112. an adjusting ring; 113. a notch; 114. an elastic buckle; 115. a limit tooth; 116. a locking cap; 117. extruding the arc-shaped plate; 20. protecting the tube; 22. salient points; 23. a card slot; 24. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 6, in the present embodiment, the present embodiment is described with reference to fig. 1 to 6, and the present embodiment provides an ultrasonic suction biopsy needle, which includes a scale rod 1, and a first handle 2 is arranged outside one end of the scale rod 1; the other end of the scale rod 1 is provided with a second handle 3; one end of the first handle 2, which is close to the scale rod 1, is provided with a handle end cap 5, and the handle end cap 5 is sleeved on the outer side of the scale rod 1; one end of the first handle 2, which is far away from the scale rod 1, is provided with a luer locking joint 6; one end of the Ruhr locking joint 6, which is close to the scale rod 1, is provided with a connecting pipe 7, and the connecting pipe 7 is positioned in the first handle 2; the needle tube 8 is arranged inside the scale rod 1, the first handle 2, the second handle 3, the handle end cap 5, the luer locking joint 6 and the connecting tube 7 together, and the end part of the needle tube 8 extends to the outer side of the second handle 3; a mandrel 9 is sleeved on the outer side of the needle tube 8; a mandrel end cap 90 is sleeved on the outer side of the mandrel 9; an outer sheath tube 10 is arranged in the second handle 3, and one end of the outer sheath tube 10 extends to the outer side of the second handle 3; the end of mandrel end cap 90 distal to handle number one 2 is located inside sheath 10; a group of adjusting and locking components 11 are arranged on the outer side of the rod body of the scale rod 1; during operation, the first handle 2 can freely slide outside the scale rod 1 by adjusting the locking component 11, the needle discharging length of the needle tube 8 can be positioned and locked at any position, the needle discharging length of each time can be controlled and the position can be fixed when repeated puncture is carried out, further, the structure is integrally designed, the distal end of the whole structure of the product is sleeved outside the middle end of the endoscope, the distance and the whole size are consistent after the product is folded, the product structure is uniform, and the use habit is better met.

As shown in fig. 1, 2, 3, 4, and 5, the adjusting and locking assembly 11 includes a limiting ring 111, an adjusting ring 112, a notch 113, an elastic buckle 114, a limiting tooth 115, a locking cap 116, and a pressing arc plate 117; both ends of the outer side of the rod body of the scale rod 1 are sleeved with limiting rings 111; the adjusting rings 112 are fixedly connected to the sides of the limiting rings 111 far away from each other, and the adjusting rings 112 are sleeved on the outer sides of the scale rods 1; one side of the adjusting ring 112 is provided with a notch 113; elastic buckles 114 are fixedly connected in the notches 113; one side of the outer ring surface of the scale rod 1 is provided with a group of limiting teeth 115; a locking cap 116 is sleeved outside the adjusting ring 112; the two sides inside the locking cap 116 are fixedly connected with extrusion arc-shaped plates 117, and the thickness of the extrusion arc-shaped plates 117 is changed from thin to thick; when the structure works and needs to be adjusted, the locking cap 116 is rotated, the locking cap 116 drives the extrusion arc-shaped plate 117 to rotate, the thickest end of the extrusion arc-shaped plate 117 rotates towards the thinnest end, the extrusion on the elastic buckle 114 is gradually reduced till the extrusion disappears, the elastic buckle 114 is separated from the limiting teeth 115, adjustment can be carried out at the moment, after the adjustment is completed, the locking cap 116 is rotated, the locking cap 116 drives the extrusion arc-shaped plate 117 to rotate, the thinnest end of the extrusion arc-shaped plate 117 rotates towards the thickest end, the elastic buckle 114 is extruded into the limiting teeth 115 and is locked at the moment, and the structure is pressed in or loosened through rotating the locking cap 116, so that the elastic buckle 114 is meshed with or loosened from the limiting teeth 115 on the scale rod 1, locking is easy and reliable, and the risks of locking infirm locking and bolt loosening and losing are avoided.

As shown in fig. 3, two ends of the graduated rod 1 are fixedly connected with end covers 4; during operation, the end cover 4 plays a limiting role in the scale rod 1, and the situation that the scale rod 1 is completely separated from the first handle 2 and the second handle 3 is avoided.

As shown in fig. 3, the mandrel end cap 90 is sleeved with a protective tube 20; when in work, the protective function is achieved.

As shown in fig. 4 and 5, the thickest end of the extrusion arc-shaped plate 117 is provided with a clamping groove 23; salient points 22 are fixedly connected to two sides of the adjusting ring 112; during the locking process, the protruding point 22 enters the slot 23, the last end of the extrusion arc plate 117 just extrudes the elastic buckle 114, and the protruding point 22 and the slot 23 are matched, so that the locking cap 116 can be prevented from rotating, and when the adjustment is needed, the locking cap 116 only needs to be rotated hard, so that the protruding point 22 and the slot 23 are separated.

As shown in fig. 4, the inner sides of the adjusting rings 112 are all fixedly connected with a limiting block 24; in operation, the stop block 24 prevents disengagement of the adjustment ring 112 and locking cap 116.

The utility model discloses a theory of operation is: when the structure works, the locking cap 116 is rotated, the locking cap 116 drives the extrusion arc-shaped plate 117 to rotate, the thickest end of the extrusion arc-shaped plate 117 rotates towards the thinnest end, the extrusion on the elastic buckle 114 gradually becomes smaller until the extrusion disappears, the elastic buckle 114 is separated from the limiting teeth 115, adjustment can be carried out at the moment, after the adjustment is completed, the locking cap 116 is rotated, the locking cap 116 drives the extrusion arc-shaped plate 117 to rotate, the thinnest end of the extrusion arc-shaped plate 117 rotates towards the thickest end, the elastic buckle 114 is extruded into the limiting teeth 115 and is locked at the moment, and the structure presses or releases the limiting teeth 115 on the scale rod 1 by rotating the locking cap 116, so that the elastic buckle 114 bites or releases the limiting teeth 115 on the scale rod 1, the locking is easy and reliable, the risk of losing due to loose locking and loose screws is avoided, the first handle 2 can freely slide outside the scale rod 1, the needle outlet length of the locking needle tube 8 can be positioned at any position, the needle outlet length of each time can be controlled and the position can be fixed when repeatedly puncturing is ensured, further, the structure is integrally designed, the distal end of the integral structure of the product is sleeved outside the middle end of the endoscope, the whole size of the needle is consistent after the needle is folded, the product structure is uniform and more consistent with the use habit, the luer locking joint 6 is rotated through a tool, the needle tube 8 connected with the luer locking joint 6 is driven to rotate, and the insertion angle of a needle point cutting edge is more appropriate.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, and furthermore, the terms "comprise", "include", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An ultrasonic suction biopsy needle comprises a scale rod (1), and is characterized in that a first handle (2) is arranged on the outer side of one end of the scale rod (1); the other end of the scale rod (1) is provided with a second handle (3); one end, close to the scale rod (1), of the first handle (2) is provided with a handle end cap (5), and the handle end cap (5) is sleeved on the outer side of the scale rod (1); one end of the first handle (2) far away from the scale rod (1) is provided with a luer locking joint (6); a connecting pipe (7) is arranged at one end of the Ruhr locking joint (6) close to the scale rod (1), and the connecting pipe (7) is positioned in the first handle (2); the needle tube (8) is arranged inside the scale rod (1), the first handle (2), the second handle (3), the handle end cap (5), the luer locking joint (6) and the connecting tube (7) together, and the end part of the needle tube (8) extends to the outer side of the second handle (3); a mandrel (9) is sleeved on the outer side of the needle tube (8); a mandrel end cap (90) is sleeved on the outer side of the mandrel (9); an outer sheath tube (10) is arranged in the second handle (3), and one end of the outer sheath tube (10) extends to the outer side of the second handle (3); one end, far away from the first handle (2), of the mandrel end cap (90) is positioned inside the outer sheath tube (10); the outside of the rod body of the scale rod (1) is provided with a group of adjusting and locking components (11).

2. The ultrasound aspiration biopsy needle according to claim 1, characterized in that the adjustment locking assembly (11) comprises a limit ring (111), an adjustment ring (112), a notch (113), an elastic catch (114), a limit tooth (115), a locking cap (116) and a pressing arc plate (117); both ends of the outer side of the rod body of the scale rod (1) are sleeved with limiting rings (111); the adjusting rings (112) are fixedly connected to the sides, far away from the limiting rings (111), of the limiting rings, and the adjusting rings (112) are sleeved on the outer sides of the scale rods (1); one side of the adjusting ring (112) is provided with a notch (113); elastic buckles (114) are fixedly connected in the notches (113); one side of the outer ring surface of the scale rod (1) is provided with a group of limiting teeth (115); a locking cap (116) is sleeved on the outer side of the adjusting ring (112); the two sides of the interior of the locking cap (116) are fixedly connected with extrusion arc-shaped plates (117), and the thickness of the extrusion arc-shaped plates (117) is changed from thin to thick.

3. The ultrasonic suction biopsy needle according to claim 2, wherein end caps (4) are fixedly connected to both ends of the graduated rod (1).

4. An ultrasound aspiration biopsy needle according to claim 3, wherein the mandrel end cap (90) is externally sheathed with a protective tube (20).

5. The ultrasonic suction biopsy needle according to claim 2, wherein the thickest end of the extrusion arc-shaped plate (117) is provided with a groove (21); salient points (22) are fixedly connected to two sides of the adjusting ring (112).

6. The ultrasonic suction biopsy needle according to claim 5, wherein the inner side of the adjusting ring (112) is fixedly connected with a limiting block (24).