CN215129755U

CN215129755U - CT-guided semi-automatic biopsy needle fixing device for percutaneous lung puncture

Info

Publication number: CN215129755U
Application number: CN202120876741.1U
Authority: CN
Inventors: 王开金
Original assignee: Jiangjin Central Hospital of Chongqing
Current assignee: Jiangjin Central Hospital of Chongqing
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-12-14
Anticipated expiration: 2031-04-26

Abstract

The utility model discloses a CT-guided semi-automatic biopsy needle fixing device for percutaneous lung puncture, which comprises an adhesive base plate, a support frame with the lower end rotatably mounted on the adhesive base plate, wherein the support frame is a telescopic support frame with adjustable support height, and the top of the support frame is provided with a placement groove for positioning a biopsy needle; through angle and the length of regulation support frame to place semi-automatic biopsy needle in the standing groove, can effectively support fixedly to the semi-automatic biopsy needle of miscut, avoid haring important internal organs, simultaneously, highly and rotation regulation can link, realize that the one hand unlocks, adjusts location and automatic locking to highly and rotation angle simultaneously, and it is very convenient to use, and simple structure, fixed stability.

Description

CT-guided semi-automatic biopsy needle fixing device for percutaneous lung puncture

Technical Field

The utility model relates to the field of medical equipment, concretely relates to semi-automatic biopsy needle fixing device of percutaneous lung puncture under CT guide.

Background

The pulmonary shadow disease is the most common disease of the respiratory system, most patients need to be detected by a percutaneous chest biopsy technology for pathological definite diagnosis, and the CT can clearly display the size, the shape and the position of the pathological changes, a lesion necrotic cavity area, peripheral blood vessels and other conditions, and can also accurately position a puncture part, a needle inserting angle and depth, and the puncture process has higher accuracy and safety, so the application is wide. Particularly, the needle can be used for accurately puncturing nodules and focus in a central area by matching with a semi-automatic biopsy needle and adopting a step-by-step needle inserting method, but the tail part of the semi-automatic biopsy needle is heavier due to the fact that the tail part of the semi-automatic biopsy needle comprises components such as a trigger, and after the semi-automatic biopsy needle enters the skin, the semi-automatic biopsy needle cannot be fixed and is prone to lodging, so that an internal needle head easily damages important visceral organs, and serious complications are caused.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at overcoming the defect among the prior art, provide a semi-automatic biopsy needle fixing device of percutaneous lung puncture under CT guide, can effectively support fixedly to the semi-automatic biopsy needle that inserts the human body, avoid haring important internal organs to simple structure, convenient operation.

The utility model discloses a semi-automatic biopsy needle fixing device of percutaneous lung puncture under CT guide, rotate including pasting base piece, lower extreme and install in the support frame of pasting the base piece, the support frame is the telescopic support frame of support height adjustable, the top of support frame is provided with the standing groove that is used for fixing a position the biopsy needle.

Further, the top surface of pasting the base plate is fixed sets up left mount pad and right mount pad, and the fixed pivot that is provided with between left and right mount pad, the support frame includes that the bottom rotates overcoat in the telescopic link of pivot, the telescopic link bottom is provided with rotatory locking mechanism.

Further, the telescopic link includes left telescopic link and right telescopic link, and left and right telescopic link bottom all rotates overcoat in the pivot with the mode along pivot endwise slip, and rotatory locking mechanism is including setting up in the fixed terminal surface tooth of left and right mount pad and the fixed terminal surface tooth that sets up in left and right telescopic link bottom and fixed terminal surface tooth meshing, be provided with first elasticity pretightning force between the left and right telescopic link.

Furthermore, the side surfaces of the left and right mounting seats opposite to the telescopic rod are recessed to form an inwards concave conical ring surface, and the fixed end face teeth are positioned on the inwards concave conical ring surface; the bottoms of the left and right telescopic rods are fixedly provided with sleeves sleeved on the rotating shaft, the sleeves form an outer convex conical ring surface which is matched with the inner concave conical ring surface in a form-fitting manner relative to the end surface corresponding to the mounting seat, and the teeth of the sliding end surface are positioned on the outer convex conical ring surface.

Furthermore, left and right telescopic link all includes lower support bar and the slip overcoat in the upper sliding sleeve of lower support bar upper segment, be provided with flexible locking mechanism between upper sliding sleeve and the lower support bar.

Further, be the rectangle between the lower carriage and the last slip cap section, it dodges the clearance to be provided with between the horizontal lateral surface of going up the slip sleeve inner chamber and the horizontal lateral surface of lower carriage, and the horizontal medial surface of going up the slip sleeve inner chamber all is provided with intermeshing's bar tooth with the horizontal medial surface of lower carriage, is provided with second elasticity pretightning force between the last slip cap that is located left telescopic link and the last slip cap that is located right telescopic link.

Further, a first guide sleeve is fixedly arranged on the inner side surface of the lower support rod of the left telescopic rod, a first guide column of which the conformal inner sleeve is sleeved in the first guide sleeve is fixedly arranged on the inner side surface of the lower support rod of the right telescopic rod, and a first columnar spring which is elastically ejected between the two support rods is sleeved outside the first guide sleeve; the inner side surface of the upper sliding sleeve of the left telescopic rod is fixedly provided with a second guide sleeve, the inner side surface of the upper sliding sleeve of the right telescopic rod is fixedly provided with a second guide post of which the shape-fitting inner sleeve is sleeved in the second guide sleeve, and the outer sleeve of the second guide sleeve is arranged on a second columnar spring which is elastically ejected between the two upper sliding sleeves.

Further, the first cylindrical spring is located at the lower end of the lower supporting rod, and the second cylindrical spring is located in the middle of the upper sliding sleeve.

Further, still including being used for forming the arc piece of standing groove, the arc piece passes through the connecting wire and hangs between left and right telescopic link.

Further, the standing groove is fixedly arranged at the top end of the left telescopic rod or the right telescopic rod.

The utility model has the advantages that: the utility model discloses a semi-automatic biopsy needle fixing device of percutaneous lung puncture under CT guide, angle and length through the regulation and support frame to place semi-automatic biopsy needle in the standing groove, can effectively support the oblique semi-automatic biopsy needle of cutting fixedly, avoid haring important internal organs, and simultaneously, height and rotation regulation can link, realize that the one hand carries out the unblock, regulation location and automatic locking to height and rotation angle simultaneously, and it is very convenient to use, and simple structure, it is fixed stable.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the utility model when locked;

fig. 3 is a sectional view of the utility model when unlocked;

FIG. 4 is an enlarged view taken at A in FIG. 3;

fig. 5 is an enlarged view of fig. 3 at B.

Detailed Description

Fig. 1 is a schematic structural view of the present invention; fig. 2 is a cross-sectional view of the utility model when locked; fig. 3 is a sectional view of the utility model when unlocked; FIG. 4 is an enlarged view taken at A in FIG. 3; FIG. 5 is an enlarged view of FIG. 3 at B; as shown in the figures, the semi-automatic biopsy needle fixing device for percutaneous lung puncture under CT guidance in the embodiment comprises an adhesive base sheet 1 and a support frame 2 with the lower end rotatably mounted on the adhesive base sheet 1, wherein the adhesive base sheet 1 is a flexible adhesive sheet, the bottom of the adhesive base sheet 1 is provided with an adhesive surface and covered with a protective film, the adhesive surface is adhered to the skin near the position of a patient needle after the protective film is torn off before use, the support frame 2 is a telescopic support frame 2 with adjustable support height, the rotational freedom degree of the support frame 2 is single degree of freedom, the top of the support frame 2 is provided with a placement groove 3 for positioning a biopsy needle, the semi-automatic biopsy needle is placed in the placement groove 3 for supporting and positioning, and by adjusting the angle and the length of the support frame 2 and placing the semi-automatic biopsy needle in the placement groove 3, the obliquely cut semi-automatic biopsy needle can be effectively supported and fixed, so as to avoid damaging important organs, and simple structure adjusts the convenience.

In this embodiment, the top surface of the adhesive base plate 1 is fixedly provided with a left mounting seat 11 and a right mounting seat 12, a rotating shaft 13 is fixedly arranged between the left mounting seat and the right mounting seat, the support frame 2 comprises a telescopic rod, the bottom of the telescopic rod is rotatably sleeved on the rotating shaft 13, and a rotary locking mechanism is arranged at the bottom of the telescopic rod; the left mounting seat 11 and the right mounting seat 12 are fixed on the top surface of the adhesive base plate 1 through strong glue, and two ends of the rotating shaft 13 are respectively fixed on the left mounting seat 12 and the right mounting seat 12; and rotatory locking mechanism can utilize rotatory locking mechanism for can realizing among the prior art utility model's all locking mechanism of purpose, does benefit to and avoids support frame 2 rotatory, guarantees that the stability of support is high.

In this embodiment, the telescopic rods include a left telescopic rod and a right telescopic rod, the bottoms of the left and right telescopic rods are both rotatably sleeved on the rotating shaft 13 in an axially sliding manner along the rotating shaft 13, the rotary locking mechanism includes fixed end face teeth 20a arranged on the left and right mounting seats 12 and sliding end face teeth 20b fixedly arranged at the bottoms of the left and right telescopic rods and engaged with the fixed end face teeth 20a, and a first elastic pre-tightening force is arranged between the left and right telescopic rods; under the action of first elastic pre-tightening force, the fixed end face teeth 20a and the sliding end face teeth are meshed through the left and right telescopic rods, the rotation locking is realized, and when the rotation unlocking is needed, the left and right telescopic rods are inwardly pinched by hands to separate the fixed end face teeth 20a from the sliding end face teeth, so that the unlocking can be realized, and the rotation angle adjustment can be implemented; the fixed stopper 14 that is provided with in the middle of the pivot 13 for spacing the interval between two lower bracing pieces, the tooth section of stiff end face tooth 20a and slip end face tooth is the triangle nature, meshes once more after convenient separation.

In this embodiment, the opposite side surfaces of the left and right mounting seats and the telescopic rod are recessed to form an inner concave conical ring surface, and the fixed end face teeth 20a are located on the inner concave conical ring surface; sleeves sleeved outside the rotating shaft 13 are fixedly arranged at the bottoms of the left and right telescopic rods and comprise a left sleeve 21a and a right sleeve 21b, the sleeves form an outer convex conical ring surface matched with the inner concave conical ring surface in a form-fitting manner relative to the end surface corresponding to the mounting seat, and the sliding end surface teeth 20b are positioned on the outer convex conical ring surface; through setting up concave toper anchor ring and evagination toper anchor ring, do benefit to the area of contact who increases fixed end face tooth 20a and slip end face tooth, improve the intensity of locking.

In this embodiment, each of the left and right telescopic rods includes a lower support rod and an upper sliding sleeve slidably sleeved on the upper section of the lower support rod, the lower support rod includes a left lower support rod 22a and a right lower support rod 22b, the upper sliding sleeve includes a left upper sliding sleeve 23a and a right upper sliding sleeve 23b, and a telescopic locking mechanism is arranged between the upper sliding sleeve and the lower support rod; the lower supporting rod and the upper sliding sleeve are rectangular in section, an avoidance gap 27 is arranged between the transverse outer side surface of the inner cavity of the upper sliding sleeve and the transverse outer side surface of the lower supporting rod, the transverse direction represents the left-right direction, the transverse inward direction represents the opposite direction of the left telescopic rod and the right telescopic rod, the transverse outward direction represents the opposite direction of the left telescopic rod and the right telescopic rod, the thickness of the lower supporting rod is equal to the thickness of the inner cavity of the upper sliding sleeve, therefore, the lower supporting rod can only move up and down and slide left and right in the upper sliding sleeve, the transverse inner side surface of the inner cavity of the upper sliding sleeve and the transverse inner side surface of the lower supporting rod are both provided with strip-shaped teeth which are meshed with each other, and a second elastic pre-tightening force is arranged between the upper sliding sleeve positioned on the left telescopic rod and the upper sliding sleeve positioned on the right telescopic rod; under a normal state, through the set second elastic pretightening force, the transverse inner side surface of the inner cavity of the upper sliding sleeve is meshed with the strip-shaped teeth arranged on the transverse inner side surface of the lower supporting rod for locking, when unlocking is needed, the two upper sliding sleeves are inwardly pinched by hands in a pointing manner to separate the meshed strip-shaped teeth, so that unlocking can be realized, and height adjustment can be implemented; meanwhile, the height and the rotating angle can be unlocked, adjusted and positioned and automatically locked by one hand by combining with rotation adjustment, and the device is very simple and convenient to use.

In this embodiment, a first guide sleeve 24a is fixedly arranged on the inner side surface of the lower support rod of the left telescopic rod, a first guide post 24b with a shape-fitting inner sleeve sleeved in the first guide sleeve 24a is fixedly arranged on the inner side surface of the lower support rod of the right telescopic rod, and a first columnar spring 25a elastically ejected between the two support rods is sleeved outside the first guide sleeve; a second guide sleeve 26a is fixedly arranged on the inner side surface of the upper sliding sleeve of the left telescopic rod, a second guide post 26b with a shape-fitting inner sleeve in the second guide sleeve is fixedly arranged on the inner side surface of the upper sliding sleeve of the right telescopic rod, and a second columnar spring 25b elastically ejected between the two upper sliding sleeves is sleeved outside the second guide sleeve; the setting of uide bushing and guide post does benefit to the stability that improves whole support frame 2, and left and right telescopic link synchronous motion guarantees that the operation is smooth and easy.

In this embodiment, the first cylindrical spring 25a is located at the lower end of the lower support rod, and the second cylindrical spring 25b is located in the middle of the upper sliding sleeve; the first cylindrical spring 25a is positioned at the lower end of the lower support rod, so that the upper sliding sleeves have a larger stroke, and when the upper sliding sleeves are operated, fingers pinch the middle of the two upper sliding sleeves, so that the upper sliding sleeves can translate along the left-right direction.

In this embodiment, the placing device further comprises an arc-shaped sheet for forming the placing groove 3, and the arc-shaped sheet is suspended between the left and right telescopic rods through a connecting line; the arc piece is conformal partly to be wrapped in semi-automatic biopsy needle downside, hangs the arc piece through the connecting wire, does benefit to the support angle fine setting to standing groove 3, does benefit to fixed stability and improves.

In this embodiment, the placing groove 3 is fixedly arranged at the top end of the left telescopic rod or the right telescopic rod; the placing groove 3 is arranged on the top surface of an upper sliding sleeve or a cross rod fixed at the top of the upper sliding sleeve in a disposal mode, and the rigid support strength is high.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a semi-automatic biopsy needle fixing device of percutaneous lung puncture under CT guide which characterized in that: rotate including pasting the base plate, lower extreme and install in the support frame of pasting the base plate, the support frame is the telescopic support frame of supporting height-adjustable, the top of support frame is provided with the standing groove that is used for fixing a position the biopsy needle.

2. The CT-guided semi-automatic biopsy needle fixing device for percutaneous lung puncture according to claim 1, wherein: the top surface of pasting the base piece is fixed sets up left mount pad and right mount pad, and the fixed pivot that is provided with between left and right mount pad, the support frame includes that the bottom rotates the telescopic link of overcoat in the pivot, the telescopic link bottom is provided with rotatory locking mechanism.

3. The CT-guided semi-automatic biopsy needle fixing device for percutaneous lung puncture according to claim 2, wherein: the telescopic link includes left telescopic link and right telescopic link, and left and right telescopic link bottom all rotates overcoat in the pivot in order to follow pivot endwise slip's mode, and rotatory locking mechanism is including setting up in the fixed terminal surface tooth of left and right mount pad and fixed the slip terminal surface tooth that sets up in left and right telescopic link bottom and fixed terminal surface tooth meshing, be provided with first elasticity pretightning force between the left and right telescopic link.

4. The CT-guided semi-automatic biopsy needle fixing device for percutaneous lung puncture according to claim 3, wherein: the side surfaces of the left and right mounting seats opposite to the telescopic rod are recessed to form an inwards concave conical ring surface, and the fixed end face teeth are positioned on the inwards concave conical ring surface; the bottoms of the left and right telescopic rods are fixedly provided with sleeves sleeved on the rotating shaft, the sleeves form an outer convex conical ring surface which is matched with the inner concave conical ring surface in a form-fitting manner relative to the end surface corresponding to the mounting seat, and the teeth of the sliding end surface are positioned on the outer convex conical ring surface.

5. The CT-guided semi-automatic biopsy needle fixing device for percutaneous lung puncture according to claim 4, wherein: the left and right telescopic rods comprise lower support rods and upper sliding sleeves sleeved on the upper sections of the lower support rods in a sliding mode, and telescopic locking mechanisms are arranged between the upper sliding sleeves and the lower support rods.

6. The CT-guided semi-automatic biopsy needle fixing device for percutaneous lung puncture according to claim 5, wherein: the utility model discloses a telescopic handle of a motor vehicle, including the upper and lower bracing pieces, be the rectangle between the section of lower stay and the upper slide cover, be provided with between the horizontal lateral surface of upper slide sleeve inner chamber and the horizontal lateral surface of lower stay and dodge the clearance, the horizontal medial surface of upper slide sleeve inner chamber and the horizontal medial surface of lower stay all are provided with intermeshing's bar tooth, are provided with second elasticity pretightning force between the upper slide cover that is located left telescopic link and the upper slide cover that is located right telescopic link.

7. The CT-guided semi-automatic biopsy needle fixing device for percutaneous lung puncture according to claim 6, wherein: a first guide sleeve is fixedly arranged on the inner side surface of the lower support rod of the left telescopic rod, a first guide column of which the shape-fitting inner sleeve is sleeved in the first guide sleeve is fixedly arranged on the inner side surface of the lower support rod of the right telescopic rod, and a first columnar spring which is elastically ejected between the two support rods is sleeved outside the first guide sleeve; the inner side surface of the upper sliding sleeve of the left telescopic rod is fixedly provided with a second guide sleeve, the inner side surface of the upper sliding sleeve of the right telescopic rod is fixedly provided with a second guide post of which the shape-fitting inner sleeve is sleeved in the second guide sleeve, and the outer sleeve of the second guide sleeve is arranged on a second columnar spring which is elastically ejected between the two upper sliding sleeves.

8. The CT-guided semi-automatic biopsy needle fixing device for percutaneous lung puncture according to claim 7, wherein: the first columnar spring is located at the lower end of the lower supporting rod, and the second columnar spring is located in the middle of the upper sliding sleeve.

9. The CT-guided semi-automatic biopsy needle fixing device for percutaneous lung puncture according to claim 3, wherein: the novel multifunctional desk is characterized by further comprising arc-shaped pieces used for forming the placing grooves, and the arc-shaped pieces are hung between the left telescopic rod and the right telescopic rod through connecting lines.

10. The CT-guided semi-automatic biopsy needle fixing device for percutaneous lung puncture according to claim 3, wherein: the standing groove is fixedly arranged at the top end of the left telescopic rod or the right telescopic rod.