CN211674612U

CN211674612U - Puncture guiding device

Info

Publication number: CN211674612U
Application number: CN202020182257.4U
Authority: CN
Inventors: 王海峰
Original assignee: Remedicine Co ltd
Current assignee: Shanghai Ruidao Medical Technology Co ltd
Priority date: 2020-02-19
Filing date: 2020-02-19
Publication date: 2020-10-16
Anticipated expiration: 2030-02-19

Abstract

The application provides a puncture guiding device, includes: the device comprises a bottom plate, a first plate vertically fixed on the bottom plate, a second plate in radial sliding connection with the first plate, a puncture template detachably arranged on the second plate, and a lifting adjusting mechanism penetrating through the bottom plate and in threaded connection with the second plate; when the lifting adjusting mechanism rotates, the second plate and the puncture template are driven to move up and down together, a plurality of guide holes which are arranged in an array mode and penetrate through the thickness of the puncture template are formed in the puncture template, and the guide holes are used for guiding puncture needles or treatment probes. The puncture guiding device provided by the embodiment of the application improves the precision of puncture positioning, and is simple in structure, low in cost and convenient to operate.

Description

Puncture guiding device

Technical Field

The application relates to the technical field of medical instruments, in particular to a puncture guiding device.

Background

Puncture techniques are commonly used in biopsy or tumor ablation procedures. In clinical use, a puncture guide device is generally mounted on an ultrasonic probe and used for guiding a puncture needle or a treatment probe, and the puncture needle or the treatment probe is injected into a human body under the guidance of ultrasound to obtain target tissues in the body of a patient or perform ablation treatment on a focus.

The puncture guiding device needs to be capable of accurately positioning to realize puncture, and the structure is not too complex to cause difficult operation and high cost. Especially in the tumor ablation operation, the positioning accuracy of the puncture guiding device directly influences the tumor ablation effect. Therefore, how to realize the precise positioning of the puncture guiding device, the simple operation and the low cost is a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The application provides a puncture guiding device, includes: the device comprises a bottom plate, a first plate vertically fixed on the bottom plate, a second plate in radial sliding connection with the first plate, a puncture template detachably mounted on the second plate, and a lifting adjusting mechanism penetrating through the bottom plate and in threaded connection with the second plate; when the lifting adjusting mechanism rotates, the second plate and the puncture template are driven to move up and down together, a plurality of guide holes which are arranged in an array and penetrate through the thickness of the puncture template are formed in the puncture template, and the guide holes are used for guiding puncture needles or treatment probes.

Further, the lift adjustment mechanism includes: a directional shaft, a hollow knob and a bolt; the orientation shaft is provided with a threaded part and a wedge part, the threaded part is in threaded connection with the second plate, the wedge part is provided with an internal thread groove, and a boss is formed at the joint of the threaded part and the wedge part; the wedge-shaped part penetrates through the bottom plate, and the boss abuts against the upper surface of the bottom plate; the hollow knob is sleeved on the wedge-shaped part, is tightly combined with the wedge-shaped part and abuts against the lower surface of the bottom plate; the bolt is in threaded connection with the wedge-shaped part through the inner thread groove, and a nut of the bolt abuts against the hollow knob.

Further, the lifting adjusting mechanism further comprises: an elastic pad; the elastic gasket is sleeved on the bolt and clamped between the nut and the hollow knob.

Furthermore, an observation hole is formed in the position, corresponding to the threaded portion, of the second plate, and the observation hole is used for observing the exposed length of the threaded portion.

Further, the first board is equipped with the spout towards the one side of second board, the second board is equipped with towards the one side of first board with the slide rail that the spout matches, the slide rail is located make in the spout first board with second board radial sliding connection.

Furthermore, two connecting rods are arranged on the puncture template, two connecting holes matched with the connecting rods are arranged on the second plate, and the connecting rods are inserted into the connecting holes.

Furthermore, a locking knob is arranged at the position, corresponding to the connecting hole, of the second plate, and the locking knob is in threaded connection with the second plate so as to fasten the puncture template.

Further, the puncture template is an insulating plate, or the surface of the puncture template is covered with an insulating layer.

Furthermore, coordinate values are arranged on the puncture template corresponding to the positions of the guide holes.

Compared with the prior art, the first plate is fixed on the base, and when the second plate slides in the radial direction relative to the first plate, the second plate can be guaranteed to move up and down in the vertical direction and cannot swing left and right. And the puncture template is installed on the second board, when the puncture guide adjustment is carried out, through rotating the lifting adjusting mechanism, the second board is driven to move up and down together with the puncture template, thereby ensuring that the puncture template moves up and down in the vertical direction, avoiding the guide error caused by the left and right swinging of the puncture template or the height difference of the left and right sides, and improving the precision of puncture positioning. Moreover, the puncture guiding device is simple in structure, can be operated by a single hand, and is low in cost and convenient to operate.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the invention.

FIG. 1 is a schematic view of a puncture guide device according to an exemplary embodiment of the present application;

FIG. 2 is a schematic view of a lancing guide device according to an exemplary embodiment of the present application showing a first plate in a radially sliding engagement with a second plate;

FIG. 3 is a schematic diagram illustrating the construction of a puncture template according to an exemplary embodiment of the present application;

fig. 4 is a schematic structural diagram of a lift adjustment mechanism according to an exemplary embodiment of the present application.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

The embodiment of the application provides a puncture guiding device, which can improve the precision of puncture positioning, has a simple structure, and is not only low in cost but also convenient to operate. A puncture guide according to an embodiment of the present application is shown in fig. 1.

The puncture guide device includes: the device comprises a bottom plate 1, a first plate 2 vertically fixed on the bottom plate 1, and a second plate 3 connected with the first plate 2 in a radial sliding mode; a puncture template 4 which is detachably arranged on the second plate 3, and a lifting adjusting mechanism 5 which penetrates through the bottom plate 1 and is in threaded connection with the second plate 3. When the lifting adjusting mechanism 5 rotates, the second plate 3 and the puncture template 4 are driven to move up and down together, a plurality of guide holes 41 which are arranged in an array and penetrate through the thickness of the puncture template 4 are formed in the puncture template 4, and the guide holes 41 are used for guiding puncture needles or treatment probes.

In the embodiment of the present application, the first plate 2 can be vertically fixed on the base plate 1 by using screws, and the second plate 3 is connected with the first plate 2 in a radial sliding manner. In an alternative embodiment, the sliding groove 21 may be provided on a side of the first plate 2 facing the second plate 3, and the sliding rail 34 matching with the sliding groove 21 may be provided on a side of the second plate 3 facing the first plate 2, and the sliding rail 34 is located in the sliding groove 21 so that the first plate 2 and the second plate 3 are connected in a radially sliding manner. As shown in fig. 2, the sliding groove 21 may be disposed in the middle of the first plate 2, the sliding groove 21 may be a trapezoidal groove (i.e. the cross section of the sliding groove is trapezoidal), the sliding rail 34 is disposed in the middle of the second plate 3, and the sliding groove 21 and the sliding rail 34 cooperate to realize the sliding connection between the second plate 3 and the first plate 2. In other examples, the sliding rails and the sliding grooves may also be respectively disposed on two sides of the first board 2 and the second board 3, for example, two sliding grooves are respectively disposed on two sides of the first board 2, two sliding rails are respectively disposed at corresponding positions on two sides of the second board 3, and the sliding grooves and the sliding rails cooperate to realize the sliding connection between the second board 3 and the first board 2.

In the embodiment of the present application, a through hole is formed in the bottom plate 1, and the lifting adjusting mechanism 5 penetrates through the through hole and is in threaded connection with the second plate 3. When the lifting adjusting mechanism 5 is rotated, the second plate 3 is driven to move up and down under the action of the threads, and meanwhile, the second plate 3 drives the puncture template 4 to move up and down, so that the up-and-down adjustment of the puncture template 4 is completed. The puncture template 4 is provided with a plurality of guide holes 41 penetrating through the thickness of the puncture template 4, the plurality of guide holes 41 are arranged in an array, and the intervals between two adjacent guide holes 41 are the same, refer to fig. 1. The guide hole 41 is used for guiding a puncture needle or a treatment probe. When the puncture biopsy is carried out, the puncture needle is injected into a human body through the guide hole on the puncture template 4 to obtain the target tissue in the patient body. When tumor ablation is performed, at least 2 treatment probes, such as 2, 4, or 6 treatment probes, can be used, and each treatment probe is inserted into the corresponding guide hole 41, so that the treatment probes are parallel to each other, and a circuit caused by mutual contact between the treatment probes is avoided.

The puncture guiding device in the embodiment of the application can ensure that the puncture guiding device can move up and down in the vertical direction and cannot swing left and right when the second plate 3 slides radially relative to the first plate 2 because the first plate 2 is fixed on the base. And puncture template 4 is installed on second board 3, when carrying out puncture direction regulation, through rotating lifting adjusting mechanism 5, drives second board 3 and puncture template 4 and reciprocates together to guaranteed that puncture template 4 reciprocates in the vertical direction, can avoid puncture template 4 horizontal hunting or about both sides highly differ the time cause the direction error, improved the precision of puncture location. Moreover, the puncture guiding device is simple in structure, can be operated by a single hand, and is low in cost and convenient to operate.

In an alternative embodiment, two connecting rods 42 are provided on the puncture template 4, two connecting holes 31 matching with the connecting rods 42 are provided on the second plate 3, and the connecting rods 42 are inserted into the connecting holes 31, referring to fig. 2 and 3. Specifically, two connecting rods 42 are respectively located at two ends of the bottom of the puncture template 4, two connecting holes 31 are respectively located at two ends of the upper portion of the second plate 3, the connecting rods 42 are inserted into the connecting holes 31, the detachable connection of the puncture template 4 and the second plate 3 is realized, the detachment is convenient, and the puncture template 4 is convenient to replace. In one embodiment, the connecting rod 42 may be cylindrical, and the connecting hole 31 may be a through hole penetrating the thickness direction of the second plate 3. referring to fig. 2, the through hole structure makes the portion of the second plate 3 connected to the connecting rod 42 slightly elastic, which facilitates the mounting and dismounting of the puncture template 4 and also facilitates the reinforcement of the puncture template 4. In another embodiment, the connecting rod 42 may be cylindrical, and the connecting hole 31 is a circular hole matching the connecting rod 42. In another embodiment, the connecting rod 42 may be a square column, and the connecting hole 31 is a square hole matching with the connecting rod 42, in other embodiments, the connecting rod 42 and the connecting hole 31 may also be other shapes to achieve the detachable connection of the puncture template 4 and the second plate 3, which is not limited in the embodiment of the present application.

Preferably, the second plate 3 may be provided with a locking knob 32 at a position corresponding to the coupling hole 31, and referring to fig. 1, the locking knob 32 is screw-coupled to the second plate 3 to fasten the puncture template 4. In an alternative embodiment, the locking knob 32 may be tightened against the connecting rod 42 to further secure the attachment of the puncture template 4 to the second plate 3. In an alternative embodiment, the locking knob 32 may be tightened to extend through the second plate 3 such that the connecting rod 42 is tightly sandwiched between the second plate 3, thereby providing a more secure connection of the puncture template 4 to the second plate 3. In addition, a pair of magnets may be respectively disposed at the bottoms of the connecting rod 42 and the connecting hole 31, and when the connecting rod 42 is inserted into the connecting hole 31, the magnets attract each other to further fasten the puncture template 4 and the second plate 3.

The puncture guiding device in the embodiment of the application can be used in combination with an ultrasonic device, for example, the puncture guiding device can be installed on the ultrasonic device, under the guidance of ultrasound, the puncture template 4 is adjusted to a proper position through the lifting adjusting mechanism 5, and the puncture needle or the treatment probe is injected into a human body to obtain target tissues in the body of a patient or ablate a focus.

In an alternative embodiment, the second plate 3 may have a U-shaped cutout, which may be used for the ingress and egress of an ultrasound probe, see fig. 1. In another alternative embodiment, the height of the connecting rod 42 may be greater than the depth of the connecting hole 31, so that when the connecting rod 42 is inserted into the connecting hole 31, the gap between the puncture template 4 and the second plate 3 can be used for the ingress and egress of the ultrasonic probe.

Optionally, a coordinate value 43 is set at a position on the puncture template 4 corresponding to the guide hole 41 in the embodiment of the present application, as shown in fig. 3, the coordinate value 43 is used to record a position of the puncture needle or the treatment probe, for example, when a tumor is ablated by using the treatment probe, a plurality of treatment probes may be used simultaneously, a position of each treatment probe may be recorded according to the coordinate value 43 of the guide hole 41, and meanwhile, in combination with a position coordinate of the tumor in the ultrasound image, each treatment probe is more scientifically arranged at a corresponding position on the tumor tissue, so as to achieve a better ablation effect.

Optionally, the puncture template 4 is an insulating plate, or the surface of the puncture template 4 is covered with an insulating layer. This prevents the treatment probe from being short-circuited or electrostatically affected.

In an alternative embodiment, the lift adjustment mechanism 5 may include an orientation shaft 51, a hollow knob 52, and a bolt 53, as shown in FIG. 4. The orientation shaft 51 has a screw portion 511 and a wedge portion 512, the screw portion 511 is screw-coupled with the second plate 3, the wedge portion 512 has an internal screw groove, and a boss 513 is formed at the intersection of the screw portion 511 and the wedge portion 512. The wedge-shaped part 512 penetrates through the bottom plate 1, and the boss 513 abuts against the upper surface of the bottom plate 1; the hollow knob 52 is sleeved on the wedge-shaped part 512, tightly combined with the wedge-shaped part 512 and abutted against the lower surface of the bottom plate 1; the bolt 53 is threadedly coupled to the wedge 512 via the internal thread groove, and the nut 531 of the bolt 53 abuts against the hollow knob 52. In this embodiment, the bottom plate 1 is provided with a through hole, and the wedge 512 penetrates through the bottom plate 1 from the through hole, and in practical applications, the boss 513 may also be located in the through hole of the bottom plate 1 to keep the surface flat. In this embodiment, the hollow knob 52 is connected to the directional shaft 51 by the bolt 53, when the hollow knob 52 is rotated, a joint between the hollow knob 52 and the wedge 512 generates an engaging force to drive the directional shaft 51 to rotate, and the thread portion 511 of the directional shaft 51 drives the second plate 3 and the puncture template 4 to move simultaneously by a rotation force of the thread, thereby achieving the adjustment of the puncture guiding. The device has a simple structure, saves cost, can be operated by one hand, and reduces the operation difficulty.

Optionally, the lifting adjusting mechanism 5 further includes an elastic washer 54, and with reference to fig. 4, the elastic washer 54 is sleeved on the bolt 53 and clamped between the nut 531 and the hollow knob 52. The provision of the elastic washer 54 increases the contact area between the nut 531 and the hollow knob 52, prevents the surface of the contact surface from being worn out, and also prevents looseness.

In another alternative embodiment, the second plate 3 is provided with a viewing hole 33 at a position corresponding to the threaded portion 511, with continued reference to fig. 1. The screw portion 511 is exposed through the observation hole 33, and the observation hole 33 is used for observing the exposed length of the screw portion 511, so that when the height of the puncture template 4 is adjusted using the elevation adjustment mechanism 5, the magnitude of the adjustment can be better grasped.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the present application, and that various changes in form and details may be made therein without departing from the spirit and scope of the present application in practice.

Claims

1. A puncture guide device, comprising: the device comprises a bottom plate, a first plate vertically fixed on the bottom plate, a second plate in radial sliding connection with the first plate, a puncture template detachably mounted on the second plate, and a lifting adjusting mechanism penetrating through the bottom plate and in threaded connection with the second plate;

when the lifting adjusting mechanism rotates, the second plate and the puncture template are driven to move up and down together, a plurality of guide holes which are arranged in an array and penetrate through the thickness of the puncture template are formed in the puncture template, and the guide holes are used for guiding puncture needles or treatment probes.

2. The puncture guide of claim 1, wherein the elevation adjustment mechanism comprises: a directional shaft, a hollow knob, and a bolt;

the orientation shaft is provided with a threaded part and a wedge-shaped part, the threaded part is in threaded connection with the second plate, the wedge-shaped part is provided with an internal thread groove, a boss is formed at the joint of the threaded part and the wedge-shaped part, the wedge-shaped part penetrates through the bottom plate, and the boss abuts against the upper surface of the bottom plate;

the hollow knob is sleeved on the wedge-shaped part, is tightly combined with the wedge-shaped part and abuts against the lower surface of the bottom plate;

the bolt is in threaded connection with the wedge-shaped part through the inner thread groove, and a nut of the bolt abuts against the hollow knob.

3. The puncture guide of claim 2, wherein the elevation adjustment mechanism further comprises: an elastic pad;

the elastic gasket is sleeved on the bolt and clamped between the nut and the hollow knob.

4. The puncture guide of claim 2, wherein the second plate is provided with an observation hole corresponding to the threaded portion, and the observation hole is used for observing the exposed length of the threaded portion.

5. The puncture guide device according to claim 1, wherein a sliding groove is formed in a surface of the first plate facing the second plate, a sliding rail matched with the sliding groove is formed in a surface of the second plate facing the first plate, and the sliding rail is located in the sliding groove so that the first plate and the second plate are connected in a radial sliding manner.

6. The puncture guide device according to claim 1, wherein the puncture template is provided with two connecting rods, the second plate is provided with two connecting holes matching with the connecting rods, and the connecting rods are inserted into the connecting holes.

7. The puncture guide of claim 6, wherein the second plate is provided with a locking knob at a position corresponding to the connection hole, the locking knob being threadedly coupled to the second plate to fasten the puncture template.

8. The puncture guide device according to claim 1, wherein the puncture template is an insulating plate, or the surface of the puncture template is covered with an insulating layer.

9. The puncture guide device according to claim 1, wherein coordinate values are provided on the puncture template at positions corresponding to the guide holes.