WO2020168482A1

WO2020168482A1 - Biopsy needle having window

Info

Publication number: WO2020168482A1
Application number: PCT/CN2019/075560
Authority: WO
Inventors: 王沁
Original assignee: 王沁
Priority date: 2019-02-20
Filing date: 2019-02-20
Publication date: 2020-08-27

Abstract

A biopsy needle having a window, comprising a housing and a puncture needle; an outer needle seat (7) is provided in the housing, the outer needle seat (7) being provided with configuration indications (71), and the housing comprises an upper cover (1) and a base (6) which are fitted to each other, the upper cover (1) being provided with a viewable window (11) corresponding to the configuration indications (71); and the base (6) is axially symmetrically provided with first hand-held portions, an arc-shaped groove (61) being provided on each first hand-held portion. The biopsy needle having a window is able to adapt, by means of the arc-shaped grooves (61) of the first hand-held portions, to the sizes of fingers of different doctors wearing the gloves, and during use, the doctors can place their fingers in the arc-shaped grooves (61) for ease of gripping, and can also observe the configuration position through the viewable window (11), thereby providing correct operation parameters.

Description

Biopsy needle with window

Technical field

The present invention relates to the technical field of medical devices, in particular to a biopsy needle with a window.

Background technique

Bone and soft tissue tumors are diseases that seriously endanger human health and life. In recent years, the incidence has gradually increased, and the age of onset has gradually decreased. Early detection, correct diagnosis, and timely treatment have an important impact on the prognosis. Correct diagnosis requires a combination of clinical, imaging and pathology. Among them, pathological diagnosis plays a key role in the choice of treatment options. Needle biopsy is the main way to obtain pathological diagnosis.

In the needle biopsy operation, the surgeon needs to wear the designated surgical gloves during the preparation and operation, and the thickness of the fingers of the surgeon is different, and the fingers are placed in the corresponding hand position, or there is certain inconvenience and inappropriateness. Prepare the biopsy needle and place its winding in the state to be sampled. This process requires careful observation whether the product is the required parameter for the operation. The hand position of the existing products is not open enough, and the gear position prompt is not obvious.

Summary of the invention

In view of this, the present invention provides a biopsy needle with a window, which can adapt to the thickness of the fingers of different doctors wearing gloves, and is convenient to grasp, and the way of displaying the gear position is through the structure of the window, making it easier and convenient to observe the document Position, provide correct surgical parameters.

To achieve the above objective, according to one aspect of the present invention, a biopsy needle with a window is provided.

The biopsy needle with a viewing window of the present invention includes a housing and a puncture needle. The housing is provided with an outer needle holder capable of reciprocating movement, and a plurality of gear indications are provided on the outer needle holder along the moving direction, The housing includes an upper cover and a base that are buckled with each other, and the upper cover is provided with a visible window corresponding to the gear indication.

Optionally, both sides of the base are symmetrically provided with a first holding part along the axis of the base, and the first holding part is provided with an arc-shaped slot with an opening facing away from the base.

Optionally, one end of the housing is provided with a first needle outlet; the other end of the housing is provided with an inner needle seat.

Optionally, the inner needle seat includes an elongated insert assembly inserted into the housing and a second holding part, and an end of the insert assembly away from the second holding part is provided with a bump, so An inner needle insertion hole is provided at one end of the second holding part close to the housing.

Optionally, the base is provided with a first insertion hole at an end away from the first needle outlet, and the base is provided with a first slot and a second slot, and the second slot is located in the first slot. In the card slot, the second card slot is matched with the insert piece assembly, and the second card slot penetrates the first insertion hole, and the insert piece assembly passes through the first insertion hole and enters the socket. In the second card slot; the end of the second card slot is provided with a third card slot buckled with the protrusion.

Optionally, a fourth slot is provided on the base close to the first insertion hole, a compression spring sleeve is provided on the fourth slot, and a spring is sleeved on the compression spring sleeve, and The spring is located above the first slot, and an outer needle seat is sleeved on the spring.

Optionally, the outer needle seat is inserted into the first card slot.

Optionally, a fixing block corresponding to the gear indication is provided on the side of the outer needle seat close to the first slot, and the fixing block can be inserted into the third slot, The outer needle holder is far away from the first needle outlet, and a card is provided at one end close to the fixing block; the outer needle holder is away from the spring and is provided with a second needle outlet at one end close to the first needle outlet .

Optionally, the puncture needle includes an outer needle assembly and an inner needle assembly, and the inner needle assembly is sleeved in the outer needle assembly; one end of the outer needle assembly is located in the second needle outlet, so The outer needle assembly penetrates the first needle outlet.

Optionally, one end of the inner needle assembly is located in the inner needle insertion hole, and the inner needle assembly passes through the compression spring sleeve, the spring, the outer needle seat, and the outer needle assembly in sequence.

Optionally, a plurality of gear indicating lines are provided on the inner needle assembly at intervals.

According to the technical solution of the present invention, the arc-shaped groove of the first hand-held part can adapt to the thickness of the fingers of different doctors wearing gloves. The doctor can put the fingers in the arc-shaped groove during use, so that it is convenient to grasp and pass the The window can observe the position of the gear, so it can provide correct surgical parameters.

Description of the drawings

The accompanying drawings are used to better understand the present invention, and do not constitute an improper limitation of the present invention. among them:

Fig. 1 is one of the structural schematic diagrams of a biopsy needle with a window according to an embodiment of the present invention;

2 is a schematic diagram of an exploded structure of a biopsy needle with a window according to an embodiment of the present invention;

Fig. 3 is a second structural diagram of a biopsy needle with a window according to an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of an outer needle hub according to an embodiment of the present invention.

Among them, 1- upper cover; 2- spring; 3- compression spring sleeve; 4- inner needle seat; 41- second holding part; 42- insert assembly; 43- bump; 5- first needle outlet; 6-base; 61-arc groove; 62-first socket; 7-outer needle seat; 71-gear position indicator; 8-outer needle assembly; 9-inner needle assembly; 91-gear position indicator line; 10- The second needle outlet; 11-can window.

detailed description

The following describes exemplary embodiments of the present invention with reference to the accompanying drawings, which include various details of the embodiments of the present invention to facilitate understanding, and should be regarded as merely exemplary. Therefore, those of ordinary skill in the art should realize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Likewise, for clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

Referring to Figures 1, 2, 3, and 4, the biopsy needle with a viewing window of the present invention includes a housing and a puncture needle. The housing is provided with an outer needle seat 7 capable of reciprocating movement, and the outer needle seat 7 moves along A number of gear indications 71 are provided in the direction of. The outer needle holder 7 can reciprocate in the direction parallel to the needle entry. On the outer needle holder 7, a plurality of gear indicators 71 are provided along the moving direction. The number of gear indicators 71 can be determined according to actual needs. In the embodiment, three gear indications 71 are provided on the outer needle seat 7, which are respectively 0 gear, 10 gear, and 20 gear. The housing includes an upper cover 1 and a base 6 that are buckled with each other. The upper cover 1 is provided with a visible window 11 corresponding to the gear indication 71 (the window 11 may be round or rectangular); both sides of the base 6 are along the base 6 A first hand-held part is arranged axially symmetrically, and the first hand-held part is provided with an arc-shaped groove 61 with an opening facing away from the base 6; the arc-shaped groove 61 of the first hand-held part can adapt to different doctors wearing gloves The thickness of the fingers, the doctor can place the fingers in the arc-shaped groove 61 during use, so that it is convenient to grasp, and the position of the gear can be observed through the visible window 11, so the correct operation parameters can be provided.

One end of the housing is provided with a first needle outlet 5; the other end of the housing is provided with an inner needle seat 4. The inner needle holder 4 includes a long strip insert assembly 42 inserted into the housing and a second holding part 41. The insert assembly 42 is provided with a protrusion 43 at one end away from the second holding part 41, and the second holding part 41 is close to One end of the shell is provided with an inner needle jack.

The base 6 is provided with a first insertion hole 62 at one end away from the first needle outlet 5, and the base 6 is provided with a first card slot and a second card slot. The second card slot is located in the first card slot, and the second card slot is connected to the plug The chip assembly 42 is matched, and the second slot and the first insertion hole 62 pass through, and the insertion piece assembly 42 passes through the first insertion hole 62 and enters the second slot; the end of the second slot is provided with a protrusion 43 In the buckled third slot, the insert assembly 42 can slide in the second slot.

The base 6 is provided with a fourth slot at one end close to the first insertion hole 62, and the fourth slot is provided with a compression spring sleeve 3 (the compression spring sleeve 3 is provided with a through hole along the axial direction, the through hole and the inner needle insertion hole Through), a spring 2 is sleeved on the compression spring sleeve 3, and the spring 2 is located above the first slot, and an outer needle seat 7 is sleeved on the spring 2.

The outer needle seat 7 is inserted into the first card slot, and the outer needle seat 7 can slide on the first card slot.

A fixing block corresponding to the gear indication 71 is provided on the side of the outer needle seat 7 close to the first card slot. The fixing block can be inserted into the third card slot, and the outer needle seat 7 is far away from the first needle outlet 5, and A card is provided at one end close to the fixed block. The card can be clamped on the protrusion 43. When the biopsy needle is in use, the medical staff pulls the second holding part 41 outward, and the second holding part 41 drives the insert assembly 42 in the Slide in the second slot, and then the convex block 43 drives the outer needle seat 7 to slide in the direction of the second holding portion 41. When the fixed block is inserted into the third slot, the window 11 displays the gear indication corresponding to the fixed block 71; The outer needle seat 7 is away from the spring 2, and a second needle outlet 10 is provided at one end close to the first needle outlet 5.

The puncture needle includes an outer needle assembly 8 and an inner needle assembly 9. The inner needle assembly 9 is sleeved in the outer needle assembly 8, and the inner needle assembly 9 can move in the outer needle assembly 8.

One end of the outer needle assembly 8 is located in the second needle outlet 10, and the outer needle assembly 8 penetrates the first needle outlet 5.

One end of the inner needle assembly 9 is located in the inner needle insertion hole, and the inner needle assembly 9 passes through the compression spring sleeve 3, the spring 2, the outer needle seat 7 and the outer needle assembly 8 in sequence.

The inner needle assembly 9 is provided with a plurality of gear indicator lines 91 at intervals. When the display window 11 displays 10 gears, the first gear indicator line 91 appears from the housing, and when the display window 11 displays 20 gears , The second gear indicating line 91 appears from the housing, which can better indicate the biopsy parameters required for the operation where the biopsy needle with the window is located.

The biopsy needle with a viewing window of the present invention, when not in use, the viewing window 11 corresponds to the 0 position. When in use, the index finger and thumb of one hand are held in the first hand, and the index finger and thumb of the other hand are held in The second holding part 41, and pulling the second holding part 41 outward, the second holding part 41 drives the insert piece assembly 42 to slide in the second slot, and then the protrusion 43 drives the outer needle seat 7 to the second hand The holding part 41 slides in the direction. When the fixed block is inserted into the third card slot, the window 11 displays the gear indication 71 corresponding to the fixed block, that is, the window 11 displays 10 gears, and the inner needle seat 4 drives the inner The needle assembly 9 moves in the direction of the second holding part 41. When there are more tissues to be taken, continue to pull the second holding part 41 until the window 11 shows 20 levels, and then place the index finger and middle finger on the first At the arc-shaped groove 61 of the handle, the thumb pushes the inner needle holder 4 forward until the outer needle assembly 8 is activated, at which time the sampling process is completed. Therefore, the biopsy needle with a window of the present invention can not only adapt to the thickness of the fingers of different doctors wearing gloves, but also is convenient to grasp; and the way of displaying the gear indication is a window-shaped structure, which makes it easier and convenient to observe the gear indication The position can provide correct surgical parameters; at the same time, when in use, the inner needle assembly exposes a corresponding number of gear indicator lines, which can better indicate the biopsy parameters required for the operation of the biopsy needle with the window.

The foregoing specific implementations do not constitute a limitation on the protection scope of the present invention. Those skilled in the art should understand that, depending on design requirements and other factors, various modifications, combinations, sub-combinations, and substitutions can occur. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

A biopsy needle with a viewing window, comprising: a housing and a puncture needle, the housing is provided with an outer needle holder capable of reciprocating movement, and a plurality of gears are provided on the outer needle holder along the moving direction. Position indication, the housing includes an upper cover and a base that are buckled with each other, and the upper cover is provided with a visible window corresponding to the gear position indication.
The biopsy needle with a viewing window according to claim 1, wherein a first hand-held part is provided on both sides of the base symmetrically along the axis of the base, and the first hand-held part is provided with an opening facing away from The arc groove in the direction of the base.
The biopsy needle with a viewing window according to claim 2, wherein one end of the housing is provided with a first needle outlet; the other end of the housing is provided with an inner needle seat.
The biopsy needle with a viewing window according to claim 3, wherein the inner needle seat comprises an elongated insert assembly inserted into the housing and a second holding part, and the insert assembly is away from the One end of the second holding part is provided with a bump, and one end of the second holding part close to the housing is provided with an inner needle insertion hole.
The biopsy needle with a viewing window according to claim 4, wherein the base is provided with a first insertion hole at one end away from the first needle outlet, and the base is provided with a first slot and a second card Slot, the second card slot is located in the first card slot, the second card slot is matched with the insert piece assembly, and the second card slot penetrates the first insertion hole, the The insert piece assembly enters into the second slot through the first insertion hole; the end of the second slot is provided with a third slot that is buckled with the protrusion.
The biopsy needle with a viewing window according to claim 5, wherein a fourth slot is provided on the end of the base near the first insertion hole, and a compression spring sleeve is provided on the fourth slot A spring is sleeved on the compression spring sleeve, and the spring is located above the first slot, and the outer needle seat is sleeved on the spring.
The biopsy needle with a viewing window according to claim 6, wherein the outer needle seat is inserted into the first slot.
The biopsy needle with a viewing window according to claim 7, wherein a fixing block corresponding to the gear indication is provided on the side of the outer needle seat close to the first slot, and the fixing block The block can be inserted into the third card slot, and a card is provided at one end of the outer needle seat far from the first needle outlet and close to the fixed block; the outer needle seat is far from the spring and close to the first One end of the needle outlet is provided with a second needle outlet.
The biopsy needle with a viewing window according to claim 8, wherein the puncture needle comprises an outer needle assembly and an inner needle assembly, and the inner needle assembly is sleeved in the outer needle assembly; the outer needle One end of the assembly is located in the second needle outlet, and the outer needle assembly penetrates the first needle outlet.
The biopsy needle with a viewing window according to claim 9, wherein one end of the inner needle assembly is located in the inner needle insertion hole, and the inner needle assembly passes through the compression spring sleeve, the spring, and the outer needle in sequence. Needle holder and outer needle assembly.