CN210447153U

CN210447153U - Device for guiding puncture positioning in CT image puncture

Info

Publication number: CN210447153U
Application number: CN201920268045.5U
Authority: CN
Inventors: 李力; 刘彪; 芦苇
Original assignee: Guihang Anshun Hospital
Current assignee: Guihang Anshun Hospital
Priority date: 2019-03-04
Filing date: 2019-03-04
Publication date: 2020-05-05
Anticipated expiration: 2029-03-04

Abstract

The utility model relates to a device that is used for guide puncture location in CT image puncture, at least including support body, fixed part, location portion and piercing depth, piercing depth with location portion connects, location portion is according to following support body reciprocating motion's mode with the support body is connected, the fixed part is according to can avoiding the mode setting that the support body rocked is in the tip of support body the support body passes through under the fixed condition of fixed part, location portion is according to making piercing depth many planes pivoted mode with piercing depth connects. The utility model provides a device that is used for guiding puncture location in CT image puncture passes through fixed part, supporting part and base, can be firm fixed with the support body, avoids rocking the influence puncture at the in-process of puncture to guarantee the stability of puncture.

Description

Device for guiding puncture positioning in CT image puncture

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a device that is used for guiding puncture location in CT image puncture.

Background

With the development of CT (Computer Tomography) technology, many diseases can be clearly visualized by CT, but needle biopsy is required to determine the nature of the lesion. The puncture position and angle are mostly dependent on the experience of doctors, the subjectivity is strong, and the puncture failure rate is high. Therefore, a simple and easy-to-use puncture positioning device is needed to guide puncture, so as to reduce the puncture times, improve the puncture success rate and reduce the damage to patients.

Chinese patent (publication No. CN 204158464U) discloses a device for guiding puncture location in CT image puncture, including location lead wire and angle locator, the location lead wire comprises many vertically and horizontally intersected lead wires, vertical lead wire interval is 1 cm, horizontal lead wire interval is 10 cm, the angle locator includes the angle board of semicircle form, and the scale is established and the gliding vernier of scale can be followed to the circumference of angle board, and the bubble spirit level is established to angle board bottom, and transparent cylinder pipe is established at the vertical middle part of angle board, and the silk thread is hung at the intraductal top of cylinder, and the silk thread below hangs the plumb. However, the puncture positioning device provided by the patent does not have a fixing device such as a base and the like, and the stability of puncture cannot be ensured in the process of puncture, so that the puncture angle is inclined or the puncture position is inaccurate. In addition, the puncture positioning device provided by the patent has a relatively single puncture direction, and can only rotate in a single plane, which is not beneficial to the adjustment of the puncture angle by medical staff.

The interference fit of the screw with the thread is a conventional technical means and has been disclosed in a large number of patent documents. For example, chinese patent publication No. CN2494888 (published 2001, 8/9) discloses an interference anti-loosening bolt, which includes a bolt head and a screw, and has the structural key points: the screw is provided with a non-metallic interference anti-loosening ring, interference threads consistent with the thread profile of the screw are processed on the interference anti-loosening ring, the outer diameter of the interference threads is larger than the outer diameter of the screw, and the inner diameter of the interference threads is larger than the inner diameter of the screw. The utility model has strong elastic performance, good self-locking and anti-loosening effect, simple and convenient assembly, disassembly and use, repeated assembly and use, no fracture phenomenon of the bolt, no damage to the internal thread of the machine body and effective reduction of maintenance cost; the utility model has good guiding performance during installation, smooth installation, time and labor saving, and avoids the damage to the machine body due to partial twisting; the utility model discloses simple structure, intensity is high, and is with low costs, the manufacturing of being convenient for, locking, shockproof, fastening performance are reliable, safe practical.

For example, chinese patent publication No. CN203818082U (publication time: 3/8/2014) discloses a tool for disassembling a pin shaft in interference connection, which includes a bracket, a hydraulic hollow jack, a screw, a nut, and a backing plate, wherein an accommodating space capable of accommodating the pin shaft with a threaded hole is reserved in the bracket, the pin shaft in interference connection is disassembled and withdrawn, and an inlet port for the pin shaft with the threaded hole to enter the accommodating space is arranged at the bottom of the accommodating space; the cylinder body of the hydraulic hollow jack is vertically arranged on the top plate of the support, and a screw rod is vertically inserted into the cavity; one end of the screw rod is provided with a nut, and the other end of the screw rod penetrates through the top plate of the support to enter the accommodating space and can be in threaded connection with a pin shaft with a threaded hole to be detached. After the scheme more than adopting, the utility model discloses can effectively accomplish the dismantlement work of the round pin axle of threaded hole that the interference is connected, and occupation space is less, and is particularly suitable for to the limited occasion in space.

For example, chinese patent publication No. CN201836182U (published 10/5/2010) discloses an interference fit connection bolt, which includes a screw rod and a nut, wherein two ends of the screw rod are cylinders provided with threads, the nut is screwed on the threaded cylinders, the screw rod is a cone between the end of the threaded cylinder and the middle of the screw rod, the middle of the screw rod is a large end of the cone, an inner taper sleeve matched with the cone is sleeved on the cone of the screw rod, and the inner taper sleeve is provided with a through groove along an axial direction. The connecting bolt is very convenient and easy to install and detach on the connected part, and is time-saving and labor-saving.

Disclosure of Invention

The utility model provides a device for guiding puncture location in CT image puncture, including support body, fixed part, location portion and piercing depth at least to the not enough of prior art existence. The puncture device is connected with the positioning part. The positioning part is connected with the frame body in a mode of reciprocating along the frame body. The fixing part is arranged at the end part of the frame body in a mode that the frame body can be prevented from shaking. Under the condition that the rack body is fixed by the fixing part, the positioning part is connected with the puncture device in a mode of enabling the puncture device to rotate in multiple planes.

According to a preferred embodiment, the positioning part comprises at least a needle holder, a rotary part and a guide rod. The guide rod is connected with the frame body in a manner of reciprocating along the frame body. The rotating piece is sleeved on the guide rod in a reciprocating mode along the length direction of the guide rod. The needle holding piece is connected with the puncture device. The rotating part can rotate around the guide rod, so that the needle holding part drives the puncture device to rotate around the guide rod at the same time.

According to a preferred embodiment, the needle holder is arranged at least one end of the rotary part. The needle holding piece is connected with the rotating piece in a pivoting mode. In the case of pivoting of the needle holder, the puncturing device is connected to the needle holder so as to be pivotable therewith.

According to a preferred embodiment, the positioning part further comprises a measuring device for measuring the angle of rotation of the rotating member. The measuring device is arranged on one side of the rotating part. The measuring device is sleeved on the guide rod in a manner that the measuring device can reciprocate along the length direction of the guide rod without rotating along with the rotating piece.

According to a preferred embodiment, the device further comprises a support. The supporting part at least comprises a first telescopic rod, a second telescopic rod and a power component. The power component is connected with the second telescopic rod. The second telescopic rod is connected with the first telescopic rod. The first telescopic rod is connected with the frame body in a hinged mode.

According to a preferred embodiment, the second telescopic rod is connected to the first telescopic rod in a perpendicular manner to the first telescopic rod. The second telescopic rod is arranged in a mode that the first telescopic rod can be lifted under the action of the power component.

According to a preferred embodiment, the power member is provided with a handle. The handle is connected with the power component in a mode that the second telescopic rod can be made to stretch and retract.

According to a preferred embodiment, the first telescopic rod is connected to the frame body in such a way that it can be extended and retracted in its length direction to move the frame body.

According to a preferred embodiment, the first telescopic rod is provided with a locking device. The locking device is abutted against the first telescopic rod in a mode of fixing the telescopic length of the first telescopic rod.

According to a preferred embodiment, the bottom of the power unit is provided with a base for fixing the power unit. The base is provided with a fixing device.

The beneficial effects of the utility model are that following one or more:

1. the device for guiding puncture positioning in the puncture of the CT image provided by the utility model can firmly fix the frame body through the fixing part, the supporting part and the base, and avoid shaking to influence the puncture in the puncture process, thereby ensuring the stability of the puncture;

2. the utility model provides a be used for guiding device of puncture location to pass through the guide arm of location portion, rotate the piece and hold the needle spare in CT image puncture, can realize a plurality of planes and rotate to make piercing depth can the multi-angle puncture.

Drawings

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

List of reference numerals

1: a frame body 2: fixing part 3: positioning part

4: the puncture device 5: the needle holding piece 6: rotating member

7: and (3) a guide rod 8: the measuring device 9: supporting part

10: first telescopic link 11: the second telescopic rod 12: power component

13: the handle 14: the locking device 15: base seat

16: the fixing device 17: rotary knob

Detailed Description

In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are used in the orientation or positional relationship indicated on the basis of the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, it should also be understood that unless otherwise explicitly specified or limited, "over" or "under" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following detailed description is made with reference to the accompanying drawings.

As shown in fig. 1, the device for guiding and positioning puncture in CT image puncture provided by the present invention at least comprises a frame body 1, a fixing portion 2, a positioning portion 3 and a puncture device 4. The puncture device 4 is connected to the positioning unit 3. The positioning part 3 is connected with the frame body 1 in such a manner as to be capable of reciprocating along the frame body 1. The fixing portion 2 is disposed at an end portion of the frame body 1 in a manner capable of preventing the frame body 1 from shaking. In the case where the holder 1 is fixed by the fixing portion 2, the positioning portion 3 is connected to the puncture device 4 so as to allow the puncture device 4 to rotate in multiple planes.

Preferably, as shown in fig. 1, the frame body 1 has a "U" shape, and comprises two parallel support arms and a cross-bar perpendicular to the two support arms. The end of the support arm is provided with a fixing part 2. The fixing portion 2 is made of flexible or elastic material and can be square, round or other polygonal shapes. The fixing portion 2 abuts against the body of the patient or the medical equipment around the patient, so that the frame body 1 can be firmly fixed. Preferably, the anchoring portion 2 may also be a suction cup that can be sucked onto the body of the patient or a medical instrument around the patient.

According to a preferred embodiment, the positioning portion 3 comprises at least a needle holder 7, a rotary member 6 and a guide rod 5. The guide rod 5 is coupled to the frame body 1 in such a manner as to be capable of reciprocating along the frame body 1. The rotating member 6 is fitted over the guide rod 5 so as to be capable of reciprocating along the longitudinal direction of the guide rod 5. The needle holder 7 is connected to the puncturing device 4. The rotor 6 is connected to the needle holder 7 in such a way that it can rotate about the guide rod 5, so that the needle holder 7 carries the puncture device 4 and at the same time rotates about the guide rod 5.

Preferably, the guide rod 5 and the two support arms of the frame 1 are provided with mutually matching threads. Such as a gear and rack that intermesh. The gear sets up at two tip of guide arm 5, and the rack setting is on two support arms of support body 1. As shown in fig. 1, both ends of the guide bar 5 are further provided with knobs 17 connected with the gears. Preferably, the rotating member 6 may be a rectangular slider. The guide rod 5 penetrates through the sliding block, and the sliding block can rotate and move around the guide rod 5.

According to a preferred embodiment, the needle-holding element 7 is arranged at least one end of the rotational element 6. The needle holder 7 is connected to the rotor 6 in a pivoting manner. In the case where the needle holder 7 is pivoted, the puncture device 4 is connected to the needle holder 7 so as to be pivotable with the needle holder 7.

Preferably, the needle holder 7 may be a dial, capable of 360 ° rotation. Preferably, the puncture device 4 may be a medical instrument such as a puncture needle that can puncture the body of a patient. The needle holder 7 is provided with an engaging groove for engaging the puncture device 4. The puncture device 4 can move in the longitudinal direction of the engagement groove. The puncture device 4 can rotate with the needle holder 7. Preferably, the needle holder 7 is provided with a scale for measuring the rotation angle.

Preferably, the puncturing device 4 can be rotated about the rotating member 6 by means of the needle holder 7. The puncturing device 4 is also rotatable around the guide rod 5 by means of the rotating member 6, thereby achieving a multi-plane rotation. Preferably, a screw is arranged between the needle holder 7 and the rotor 6. The screw rod is fixedly connected with the needle holding piece 7. The screw can rotate with the needle holder 7. The rotating member 6 is provided with a through hole matching the screw. The guide rod 5 is also provided with a positioning thread matched with the screw rod. The threaded rod is engaged with the positioning thread in a manner that the threaded rod can move to the guide rod 5 along the through hole so as to fix the needle holding piece 7 and the rotating piece 6. The angle of the puncture device 4 can be fixed through the screw rod, the positioning thread and other structures, and the stable puncture of the puncture device 4 is ensured.

According to a preferred embodiment, the positioning part 3 further comprises measuring means 8 for measuring the angle of rotation of the rotating member 6. The measuring device 8 is arranged on the side of the rotor 6. The measuring device 8 is fitted over the guide rod 5 in such a way that it can move back and forth in the longitudinal direction of the guide rod 5 without rotating with the rotor 6.

Preferably, the measuring device 8 is an angle measuring plate. As shown in fig. 1, the measuring device 8 can be attached to the rotor 6, and a calibration device is provided in the measuring device 8. For example, the measuring device 8 can be suspended from a plumb line, which is corrected by the plumb line.

According to a preferred embodiment, the device further comprises a support 9. The support portion 9 includes at least a first telescopic rod 10, a second telescopic rod 11, and a power member 12. The power part 12 is connected with the second telescopic rod 11. The second telescopic rod 11 is connected with the first telescopic rod 10. The first telescopic rod 10 is connected with the frame body 1 in a hinged mode. Preferably, the frame body 1 can rotate relative to the first telescopic rod 10, so as to provide a supporting angle for the supporting arm of the frame body 1 and enable the puncturing device 4 to be positioned above the puncturing position.

According to a preferred embodiment, the second telescopic rod 11 is connected to the first telescopic rod 10 in a perpendicular manner to the first telescopic rod 10. The second telescopic rod 11 is provided so as to be able to move up and down the first telescopic rod 10 by the power unit 12.

Preferably, the power member 12 may be a pneumatic or hydraulic cylinder. The power part 12 can push or pull the second telescopic rod 11 to extend and retract, thereby lifting the frame body 1.

According to a preferred embodiment, the power unit 12 is provided with a handle 13. The handle 13 is connected to the power unit 12 so as to extend and contract the second telescopic rod 11.

According to a preferred embodiment, the first telescopic rod 10 is connected to the frame 1 in such a way as to be able to telescope along its length to move the frame 1.

According to a preferred embodiment, the first telescopic rod 10 is provided with a locking device 14. The locking device 14 abuts against the first telescopic rod 10 in a manner that the telescopic length of the first telescopic rod 10 can be fixed. Preferably, the locking device 14 may be a turnbuckle type locking device or a plate buckle type locking device.

According to a preferred embodiment, the bottom of the power unit 12 is provided with a base 15 for securing the power unit 12. The base 15 is provided with fixing means 16. Preferably, the base 15 has a U-shaped cross section and is engageable with a bed or a medical instrument near the patient. Preferably, the fixing means 16 is a screw with a bolt. The screws are arranged at the bottom of the base 15. The bottom of the base 15 is provided with a screw hole screwed with the screw. After the screws are tightened, the screws are clamped with the bed body or a medical apparatus near the patient to abut against each other. The bolts are tightened and the screws are fixed, whereby the base 15 can be fixed.

In order to facilitate understanding, the use of the device for guiding puncture location in CT imaging puncture of the present invention will be discussed.

When the utility model is used, the utility model is firstly fixed on the bed body of the patient or the medical apparatus near the patient through the base 15 and the fixing device 16. After the fixing, the length of the second telescopic rod 11 is adjusted through the handle 13 and the power part 12 to adjust the height of the frame body 1 and the first telescopic rod 10. The length of the first telescopic rod 10 is adjusted by the locking device 14, so that the rack body is moved to the marked puncture position. Rotate support body 1, make support arm of support body 1 support through fixed part 2 after the slope of support body 1 support and lean on patient's health or the bed body for support body 1 is firm stable fixed, avoids the in-process of follow-up puncture to influence the puncture effect because of rocking. During the adjustment of the puncture angle by the doctor, the puncture device 4 can be rotated about the rotary member 6 by the needle holder 7. The puncturing device 4 is also rotatable around the guide rod 5 by means of the rotating member 6, thereby achieving a multi-plane rotation. The guide bar 5 is also movable along the length of the support arm to increase the puncture angle of the puncture device 4. In addition, the angle scales on the measuring device 8 and the needle holding piece 7 can measure the puncture angle, so that a doctor can conveniently puncture according to the preset puncture angle.

It should be noted that the above-mentioned embodiments are exemplary, and those skilled in the art can devise various solutions in light of the present disclosure, which are also within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims

1. The device for guiding puncture positioning in CT image puncture is characterized by at least comprising a frame body (1), a fixing part (2), a positioning part (3) and a puncture device (4),

the puncture device (4) is connected with the positioning part (3), the positioning part (3) is connected with the frame body (1) in a reciprocating manner along the frame body (1), the fixing part (2) is arranged at the end part of the frame body (1) in a manner of avoiding the frame body (1) from shaking,

under the condition that the frame body (1) is fixed through the fixing part (2), the positioning part (3) is connected with the puncturing device (4) in a mode of enabling the puncturing device (4) to rotate in multiple planes.

2. The device for guiding the positioning of puncture in CT image puncture according to claim 1, wherein the positioning part (3) comprises at least a needle holding part (7), a rotating part (6) and a guide rod (5),

the guide rod (5) is connected with the frame body (1) in a reciprocating manner along the frame body (1), the rotating piece (6) is sleeved on the guide rod (5) in a reciprocating manner along the length direction of the guide rod (5), the needle holding piece (7) is connected with the puncture device (4),

and is

The rotating part (6) is connected with the needle holding part (7) in a manner of rotating around the guide rod (5) so that the needle holding part (7) drives the puncture device (4) to rotate around the guide rod (5) at the same time.

3. The device for guiding the positioning of the puncture in CT image puncture according to claim 2, wherein the needle holder (7) is disposed at least one end of the rotating member (6), and the needle holder (7) is pivotally connected to the rotating member (6),

when the needle holder (7) is pivoted, the puncturing device (4) is connected to the needle holder (7) so as to be pivotable with the needle holder (7).

4. The device for guiding the positioning of the puncture in the CT image puncture according to claim 3, wherein the positioning part (3) further comprises a measuring device (8) for measuring the angle of rotation of the rotating member (6), wherein,

the measuring device (8) is arranged on one side of the rotating part (6), and the measuring device (8) is sleeved on the guide rod (5) in a manner that the measuring device can reciprocate along the length direction of the guide rod (5) without rotating along with the rotating part (6).

5. The device for guiding the puncture location in the CT image puncture according to claim 4, wherein the device for guiding the puncture location in the CT image puncture further comprises a support (9), wherein,

the support part (9) at least comprises a first telescopic rod (10), a second telescopic rod (11) and a power part (12), the power part (12) is connected with the second telescopic rod (11), the second telescopic rod (11) is connected with the first telescopic rod (10), and

the first telescopic rod (10) is connected with the frame body (1) in a hinged mode.

6. The device for guiding the positioning of a puncture in CT image puncture according to claim 5, wherein the second telescopic rod (11) is connected to the first telescopic rod (10) in a perpendicular manner to the first telescopic rod (10), and the second telescopic rod (11) is arranged in such a manner that the first telescopic rod (10) can be raised and lowered by the power unit (12).

7. The device for guiding the positioning of the puncture in the CT image puncture according to claim 6, wherein the power unit (12) is provided with a handle (13), and the handle (13) is connected to the power unit (12) in such a way that the second telescopic rod (11) can be extended and retracted.

8. The device for guiding the positioning of the puncture in the CT image puncture according to claim 7, wherein the first telescopic rod (10) is connected to the frame body (1) in such a manner as to be telescopic along the length direction thereof so as to move the frame body (1).

9. The device for guiding the positioning of the puncture in the CT image puncture according to claim 8, wherein the first telescopic rod (10) is provided with a locking device (14), and the locking device (14) abuts against the first telescopic rod (10) in a manner that the telescopic length of the first telescopic rod (10) can be fixed.

10. The device for guiding the positioning of the puncture in the CT image puncture according to claim 9, wherein the bottom of the power unit (12) is provided with a base (15) for fixing the power unit (12), and the base (15) is provided with a fixing device (16).