CN211674470U

CN211674470U - Portable auxiliary CT-guided puncture positioning instrument

Info

Publication number: CN211674470U
Application number: CN201922292306.XU
Authority: CN
Inventors: 陈磊; 郭淼; 杨婧; 罗专波; 朱宁; 贺磊; 罗守军; 陈以轩
Original assignee: Ningbo First Hospital
Current assignee: Ningbo First Hospital
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-10-16
Anticipated expiration: 2029-12-18

Abstract

A portable auxiliary CT-guided puncture locator comprises a shell, a locating grid, an infrared emitter, an angle sensor and a display; the housing has a controller; the positioning grid is used for positioning the position to be punctured; the infrared emitter is arranged on the shell and connected with the signal input end of the controller, and the infrared emitter is used for emitting an infrared light path towards the position to be punctured; the angle sensor is arranged in the shell and connected with a signal input end of the controller, and is used for measuring spatial angle information of an infrared light path and transmitting the angle information to the controller; the display is connected with the output end of the controller, exposed out of the shell and used for displaying angle data. The positioning grid can conveniently position the position to be punctured, when a user sees that the infrared light path irradiates on the puncturing position and the angle displayed by the display is the desired puncturing angle, the corresponding infrared light path is the desired puncturing path, so that the puncturing angle is more accurate, and the puncturing times can be reduced.

Description

Portable auxiliary CT-guided puncture positioning instrument

Technical Field

The utility model belongs to the technical field of the operation puncture, especially, relate to a puncture locater under portable supplementary CT guide.

Background

Puncture is a diagnostic technique in which a puncture needle is inserted into a body cavity to extract secretions for examination, gas or contrast agent is injected into the body cavity to perform a contrast examination, or medicines are injected into the body cavity to perform blood extraction for examination, blood transfusion, fluid infusion, catheter placement for angiography, and the like. The procedure for performing the puncture procedure is generally as follows: a doctor designs a puncture path scheme according to CT and other image results; the puncture path scheme comprises the steps of determining a puncture position, a puncture angle and the like and then performing puncture operation.

In the puncture operation, the puncture position can be located by setting a mark. The puncture angle is mainly completed through the cooperation between two doctors, generally one doctor holds the puncture needle, and the other doctor looks at the puncture angle beside the puncture needle. The method ensures that the puncture angle is not accurate enough, the tissues around the focus are possibly damaged due to inaccurate puncture angle, and the adjustment can be carried out by multiple times of puncture, thereby prolonging the operation time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that it is more accurate to provide the puncture angle to above-mentioned prior art current situation, puncture locater under the portable supplementary CT guide of convenient location puncture position simultaneously.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a puncture locater under portable supplementary CT guide which characterized in that: comprises that

A housing having a controller;

the positioning grid can stretch out and draw back from the inside and the outside of the shell and is used for positioning the position to be punctured;

the infrared emitter is arranged on the shell and connected with the signal input end of the controller, extends out of the shell and is used for emitting an infrared light path towards the position to be punctured;

the angle sensor is arranged in the shell and connected with a signal input end of the controller, and is used for measuring the spatial angle information of the infrared light path and transmitting the angle information to the controller; and

and the display is connected with the signal output end of the controller, is exposed out of the shell and is used for displaying angle data.

The positioning grid can have various structures, and preferably comprises at least two first positioning steel needles which are arranged along the width direction of the shell and distributed at intervals and/or at least two second positioning steel needles which are arranged along the length direction of the shell and distributed at intervals from the perspective of convenient manufacturing.

In order to accommodate the positioning fence and facilitate pulling out the positioning fence, preferably, the housing further has a first accommodating cavity for accommodating the positioning fence, the housing further has an opening communicated with the first accommodating cavity for the positioning fence to extend out, and the free portion of the positioning fence is provided with a tongue piece which can be always positioned outside the housing after the positioning fence is accommodated. The positioning grid can be accommodated in the first accommodating cavity of the shell, so that the space in the shell is fully utilized; the tongue piece makes the positioning grid can not the first intracavity that holds of retraction completely, during the use, acts on the tongue piece, can pull out the positioning grid from the first intracavity that holds fast.

In order to automatically receive the positioning grid, it is preferable that a fixed shaft and a coil spring connected to the fixed shaft are arranged in the first receiving cavity, the fixed end of the coil spring is connected with the fixed shaft, the free end of the coil spring is connected with the base of the positioning grid, and the coil spring enables the positioning grid to always have the tendency of being received in the first receiving cavity by being wound on the fixed shaft. Therefore, after the external force acting on the positioning grid disappears, the positioning grid can automatically retract into the first accommodating cavity under the action of the coil spring, and therefore the positioning grid is accommodated in the first accommodating cavity.

In order to make the positioning grid still relative to the shell after extending for a certain length so as to facilitate positioning the puncture position, the shell is preferably provided with a locking piece which can make the positioning grid still relative to the shell at a position close to the opening. Therefore, after the positioning grid is pulled out by a required length, the positioning grid can be made to be static relative to the shell under the action of the locking piece.

The locking piece can have multiple structures, preferably, for the convenience of making, the locking piece is including setting up the first pivot that holds the intracavity and can relative casing pivoted and connecting the epaxial cam in the pivot of casing, the pivot enables under the effect of external force the cam court the location bars take place to rotate, and at the cam with under the state that the location bars offseted, the location bars can be static relative to the casing.

In order to facilitate the rotation of the rotating shaft, preferably, the end of the rotating shaft is connected with a knob exposed out of the housing, and the knob can apply force to the rotating shaft under the action of external force, so that the cam rotates towards the positioning grid. The external force acts on the knob, so that the rotating shaft is convenient to rotate.

In order to make the positioning grid static relative to the housing, preferably, the housing further includes a fixing sheet located in the first accommodating cavity of the housing and close to the opening, a passage for the positioning grid to extend and retract relative to the housing is formed between the fixing sheet and the cam, the rotating shaft enables the cam to rotate towards the positioning grid under the action of external force, and the positioning grid can be static relative to the housing in a state that the cam abuts against the fixing sheet. Under the action of external force, the rotating shaft can make the cam rotate towards the positioning grid, so that the positioning grid can be abutted against the fixing sheet, and the positioning grid can be static relative to the shell under the combined action of the cam and the fixing sheet.

In order to accommodate the controller and the angle sensor, the shell further comprises a second accommodating cavity arranged at an interval with the first accommodating cavity, and the controller and the angle sensor are arranged in the second accommodating cavity. Thus, the controller and the angle sensor are accommodated in the second accommodating cavity, and the space in the shell can be fully utilized.

Compared with the prior art, the utility model has the advantages of: the puncture locator is provided with a positioning grid which can conveniently position a position to be punctured, an infrared emitter which can emit an infrared light path towards the puncturing position, and an angle sensor which can be used for measuring space angle information of the infrared light path and displaying the space angle information through a display; in addition, location bars, infra-red transmitter and angle sensor all are located an instrument, compare and use solitary ruler to fix a position, the utility model discloses need not take time to look for the ruler, the location bars is also difficult to lose.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic view from another angle of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a cross-sectional view of FIG. 1 (cam separating the positioning grid from the housing);

fig. 5 is a schematic view of the other state of fig. 4 (the cam makes the positioning grid abut against the housing).

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Fig. 1 to 5 show a preferred embodiment of the portable auxiliary CT-guided puncture positioning instrument according to the present embodiment. The puncture instrument for assisting puncture in surgery comprises a shell 1 with a controller (not shown in the figure), a positioning grid 5 which can stretch out and draw back relative to the inside and outside of the shell 1 and is used for positioning a position to be punctured, an infrared emitter 2 which is arranged on the shell 1 and is connected with a signal input end of the controller, the infrared emitter 2 can extend out of the shell 1 and is used for emitting an infrared light path towards the position to be punctured, an angle sensor 3 which is arranged in the shell 1 and is connected with the signal input end of the controller, the angle sensor 3 is used for measuring spatial angle information of the infrared light path and transmitting the angle information to the controller, and a display 4 which is connected with a signal output end of the controller, the display 4 is exposed out of the shell 1 and is used for displaying angle data, and the puncture instrument is provided with the positioning grid 5 which can conveniently position the position to be punctured, the infrared emitter 2 which can emit the infrared light path towards the puncturing position, and a display 4 which can be used for measuring the spatial angle information When a user sees that the infrared light path irradiates the puncture position and the angle displayed by the display is the desired puncture angle, the corresponding infrared light path is the desired puncture path, and the user only needs to puncture along the infrared light path, and the infrared emitter 2 and the angle sensor 3 are used for assisting in positioning, so that the puncture angle is more accurate, and the puncture times can be reduced; in addition, positioning grid 5, infrared emitter 2 and angle sensor 3 all are located an instrument, compare and use solitary ruler to fix a position, the utility model discloses do not need to spend time to look for the ruler, positioning grid 5 is also difficult to lose.

Specifically, the positioning grid 5 comprises a plurality of first positioning steel needles 51 arranged along the width direction of the housing 1 and a plurality of second positioning steel needles 52 arranged along the length direction of the housing 1, and the structure of the positioning grid 5 wound on the fixed shaft 14 is simplified in fig. 3 to 5, and in other embodiments, the first positioning steel needles 51 and the second positioning steel needles 53 can be replaced by flexible belts. In order to accommodate the positioning grid 5 and facilitate the pulling out of the positioning grid 5, the housing 1 is provided with a first accommodating cavity 11 for accommodating the positioning grid 5, so that the positioning grid 5 can be accommodated in the first accommodating cavity 11 of the housing 1, thereby fully utilizing the space in the housing 1, the housing 1 is further provided with an opening 13 communicated with the first accommodating cavity 11 for the positioning grid 5 to extend out, the free part of the positioning grid 5 is provided with a tongue piece 53 which can be always positioned outside the housing 1 after the positioning grid 5 is accommodated, the tongue piece 53 enables the positioning grid 5 not to be completely retracted into the first accommodating cavity 11, and during use, the positioning grid 5 can be pulled out of the first accommodating cavity 11 quickly by means of the tongue piece 53. In addition, in order to automatically store the positioning grid 5, it is preferable that a fixed shaft 14 and a coil spring 9 connected to the fixed shaft 14 are arranged in the first accommodating cavity 11, a fixed end of the coil spring 9 is connected to the fixed shaft 14, a free end of the coil spring 9 is connected to a base of the positioning grid 5, and the coil spring 9 makes the positioning grid 5 always have a tendency to be stored in the first accommodating cavity 11 by being wound on the fixed shaft 14, so that after the external force acting on the positioning grid 5 disappears, the positioning grid 5 can automatically retract into the first accommodating cavity 11 by the action of the coil spring 9, and thus be stored in the first accommodating cavity 11. The coil spring 9 may be of the prior art and the specific construction is simplified in figures 3 to 5. In order to make the positioning grid 5 stationary relative to the housing 1 after a certain length of extension for positioning the puncture site, the housing 1 is provided with a locking member near the opening 13 for making the positioning grid 5 stationary relative to the housing 1. Specifically, referring to fig. 3 to 5, the locking member includes a rotating shaft 6 disposed in the first accommodating cavity 11 of the housing 1 and capable of rotating relative to the housing 1, and a cam 7 connected to the rotating shaft 6, wherein the rotating shaft 6 enables the cam 7 to rotate towards the positioning grid 5 under the action of an external force, and the positioning grid 5 is stationary relative to the housing 1 in a state that the cam 7 abuts against the positioning grid 5. In this embodiment, in order to rotate the rotating shaft 6, the end of the rotating shaft 6 is connected with a knob 8 exposed out of the housing 1, the knob 8 can apply force to the rotating shaft 6 under the action of external force, so as to realize the rotation of the cam 7 towards the positioning grid 5, and in order to better make the positioning grid 5 stationary relative to the casing 1, preferably, the casing 1 further comprises a fixing piece 15 located in the first accommodating cavity 11 of the casing 1 and close to the opening 13, a passage for the positioning grid 5 to telescope inside and outside relative to the casing 1 is formed between the fixing piece 15 and the cam 7, the rotating shaft 6 can make the cam 7 rotate towards the positioning grid 5 under the action of external force, and the positioning grid 5 can be static relative to the shell 1 under the state that the cam 7 is pressed against the fixed sheet 15, the cam 7 can rotate towards the positioning grid 5 under the action of external force through the rotating shaft 6, the positioning grid 5 can be abutted against the fixing plate 15, and the cooperation of the cam 7 and the fixing plate 15 can make the positioning grid 5 stationary relative to the housing 1. Finally, in order to accommodate the control unit and the angle sensor 3, the housing 1 further comprises a second accommodating chamber 12 arranged at a distance from the first accommodating chamber 11, the control unit and the angle sensor 3 being arranged in the second accommodating chamber 12. In this way, the controller and the angle sensor 3 are accommodated in the second accommodating chamber 12, and the space in the housing 1 can be fully utilized. The puncture locator further comprises 3 buttons, and the 3 switch buttons are sequentially arranged from left to right in the view of fig. 1 to form a first switch 16 for turning on and off the puncture locator, a second switch 17 for turning on and off the infrared emitter 2 and a third switch 18 for turning on and off the angle sensor 3.

The portable auxiliary CT-guided puncture locator of the embodiment has the following working principle and using process:

a doctor designs a puncture path scheme according to image results such as CT (computed tomography) and the like, which comprises the steps of determining a puncture position and a puncture angle, when the puncture position is determined, firstly rotating a knob 8 to enable a rotating shaft 6 to drive a cam 7 to rotate, enabling a positioning grid 5 to be separated from a fixing sheet 15 of a shell 1 by the cam 7 (figure 4), then pulling out the positioning grid 5 by means of a tongue piece 53, after a certain length of the positioning grid is pulled out, reversely rotating the knob 8 to drive the cam 7 to reversely rotate, enabling the positioning grid 5 to abut against the fixing sheet 15 of the shell 1 by the cam 7 (figure 5), enabling the positioning grid 5 to be static relative to the shell 1, then positioning a position to be punctured and marking the puncture position through a first positioning steel needle 51 and a second positioning steel needle 52, after the use of the positioning grid 5 is finished, reversely rotating the knob 8 to drive the cam 7 to reversely rotate, enabling the cam 7 to gradually get away from the positioning, under the action of the coil spring 9, the positioning grid 5 can automatically retract into the first accommodating cavity 11; then, the first switch 16, the second switch 17 and the third switch 18 are opened, the red emitter 2 emits an infrared light path, the angle sensor 3 measures spatial angle information of the infrared light path, angle data are displayed through the display 4, the position of the infrared emitter 2 is continuously adjusted, the infrared light path irradiates the puncture position, meanwhile, the spatial angle information of the infrared light path is consistent with the puncture angle determined in advance, the path of the infrared light path is the needed puncture path, and finally, the puncture needle is punctured along the infrared light path.

Claims

1. The utility model provides a puncture locater under portable supplementary CT guide which characterized in that: comprises that

A housing (1), the housing (1) having a controller;

the positioning grid (5) can be stretched and retracted inside and outside relative to the shell (1) and is used for positioning the position to be punctured;

the infrared emitter (2) is arranged on the shell (1) and connected with a signal input end of the controller, and the infrared emitter (2) extends out of the shell (1) and is used for emitting an infrared light path towards a position to be punctured;

the angle sensor (3) is arranged in the shell (1) and is connected with a signal input end of the controller, and the angle sensor (3) is used for measuring the spatial angle information of the infrared light path and transmitting the angle information to the controller; and

the display (4), the display (4) is connected with the signal output end of the controller, and the display (4) is exposed out of the shell (1) and is used for displaying angle data.

2. The portable assisted CT guided puncture positioning apparatus according to claim 1, wherein: the positioning grid (5) comprises at least two first positioning steel needles (51) which are arranged along the width direction of the shell (1) and distributed at intervals or/and at least two second positioning steel needles (52) which are arranged along the length direction of the shell (1) and distributed at intervals.

3. The portable assisted CT guided puncture locator according to claim 1 or 2, wherein: the shell (1) is provided with a first accommodating cavity (11) for accommodating the positioning grid (5), the shell (1) is provided with an opening (13) which is communicated with the first accommodating cavity (11) and used for extending the positioning grid (5), and the free part of the positioning grid (5) is provided with a tongue piece (53) which can be always positioned outside the shell (1) after the positioning grid (5) is accommodated.

4. The portable assisted CT guided puncture positioning apparatus according to claim 3, wherein: a fixed shaft (14) and a coil spring (9) connected to the fixed shaft (14) are arranged in the first accommodating cavity (11), the fixed end of the coil spring (9) is connected with the fixed shaft (14), the free end of the coil spring (9) is connected with the base of the positioning grid (5), and the coil spring (9) enables the positioning grid (5) to always have the tendency of being wound on the fixed shaft (14) to be accommodated in the first accommodating cavity (11).

5. The portable assisted CT guided puncture locator of claim 4, wherein: a locking piece which can enable the positioning grid (5) to be static relative to the shell (1) is arranged at the position, close to the opening (13), of the shell (1).

6. The portable assisted CT guided puncture locator of claim 5, wherein: the locking piece is including setting up in the first chamber (11) that holds of casing (1) and can be relative casing (1) pivoted pivot (6) and connect cam (7) on pivot (6), pivot (6) enable under the effect of external force cam (7) court location bars (5) take place to rotate to cam (7) with under the state that location bars (5) offset, location bars (5) can be static relative casing (1).

7. The portable assisted CT guided puncture locator of claim 6, wherein: the end portion of the rotating shaft (6) is connected with a knob (8) exposed out of the shell (1), and the knob (8) can apply force to the rotating shaft (6) under the action of external force, so that the cam (7) rotates towards the positioning grid (5).

8. The portable assisted CT guided puncture locator of claim 7, wherein: casing (1) still including being located the first chamber (11) that holds of casing (1) and being close to stationary blade (15) of opening (13), stationary blade (15) with form the confession between cam (7) the inside and outside flexible passageway of casing (1) is relatively held in location bars (5), pivot (6) enable under the effect of external force cam (7) court location bars (5) take place to rotate to cam (7) with under the state that stationary blade (15) offset, location bars (5) can be static for casing (1).

9. The portable auxiliary CT guided puncture locator according to any one of claims 4 to 8, wherein: the shell (1) further comprises a second accommodating cavity (12) arranged at an interval with the first accommodating cavity (11), and the controller and the angle sensor (3) are arranged in the second accommodating cavity (12).