Positioning support for assisting puncture and puncture needle assembly

Abstract

The utility model relates to a positioning support for assisting puncture and a puncture needle assembly, belongs to the technical field of puncture needles, and solves the problem that the puncture angle is difficult to control when a puncture needle is used for puncturing. The puncture needle assembly comprises a positioning support and a puncture needle. The positioning support comprises a supporting column assembly and a rotating assembly. The supporting column assembly comprises a supporting base and a telescopic stand column. The rotating assembly comprises a rotating shaft and a guide seat; the rotating shaft is hinged to the upper end of the telescopic stand column. The guide seat is fixedly connected with the rotating shaft; a guide groove is formed in the upper end surface of the guide seat; the surface of the guide groove is an arc surface and can be used for guiding the puncture needle; the outer surface of the needle body of the puncture needle can be in sliding fit with the guide groove; the guide groove is used for limiting the puncture direction and the puncture angle of the puncture needle. According to the utility model, the effects of supporting, positioning and puncture guiding in the puncture process of the puncture needle are realized, so that the puncture accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to puncture needle technical field especially, it is a kind of positioning support for assisting puncture, puncture needle assembly. BACKGROUND

[0002] Puncture needle is the basic instrument of intervention surgery;Puncture needle can be divided into hollow puncture needle and core puncture needle according to structure, and can be divided into percutaneous puncture channel needle and percutaneous puncture biopsy needle according to function.Core puncture needle is the common medical instrument in intervention surgery and percutaneous puncture drainage, is widely used in a variety of minimally invasive surgery, including but not limited to the tissue sampling and injection therapy of kidney, liver, lung, breast, thyroid, prostate, pancreas, uterus, ovary etc.Organ.In percutaneous puncture drainage, core puncture needle also plays an important role.

[0003] In actual application, according to the different lesion positions of patients, puncture demand is also different, for example, the puncture position, puncture angle and the depth of puncture needle into patient's body of puncture needle to patient are different.

[0004] Therefore, it is needed to provide a puncture needle with positioning function, which can better ensure the accuracy of puncture entry point and angle of patient for operator, ultimately can improve the operation efficiency and reduce the number of X-rays used to patient in operation. UTILITY MODEL CONTENT

[0005] In view of the above analysis, the utility model aims at providing a positioning support for assisting puncture, puncture needle assembly to solve the problem that the accuracy of puncture angle and direction of existing puncture needle is difficult to guarantee when puncture actual operation is carried out.

[0006] The purpose of the utility model is mainly realized through the following technical schemes:

[0007] A positioning support for assisting puncture, comprising: support column assembly and rotating assembly;The support column assembly is supported at the side of the puncture site of patient;The rotating assembly is rotatably installed at the upper end of the support column assembly;The support column assembly includes: support base and telescopic stand;The telescopic stand is installed perpendicular to the support base, and the height is adjustable;The rotating assembly includes: rotating shaft and guide seat;The rotating shaft is used for hinged connection with the upper end of the telescopic stand;The guide seat is fixedly connected with the rotating shaft, and the upper end surface of the guide seat is provided with guide groove;The surface of the guide groove is arc surface, and can be used to guide puncture needle.

[0008] Further, the telescopic column comprises a supporting column, an adjusting sleeve and a hinged seat; the supporting column is fixedly connected with the supporting base; the adjusting sleeve is sleeved with the supporting column, and the adjusting sleeve is screwed with the supporting column.

[0009] Further, the hinged seat is fixedly installed at the upper end of the adjusting sleeve, and a middle part of the hinged seat is provided with a hinged shaft hole; the rotating shaft is rotatably installed in the hinged shaft hole.

[0010] Further, the surface of the hinged shaft hole is provided with a plurality of second convex edges in a circumferential array; the second convex edges are used for providing resistance when the rotating shaft rotates relative to the hinged shaft hole.

[0011] Further, the rotating shaft and the guide seat are connected as a whole through a connecting rod.

[0012] Further, the surface of the rotating shaft is provided with a plurality of first convex edges distributed in a circumferential array; the first convex edges are used for cooperating with the second convex edges to provide resistance for the rotation of the rotating shaft.

[0013] Further, the first convex edge is clamped in the gap between two adjacent second convex edges on the hinged shaft hole; when the rotating shaft rotates relative to the hinged shaft hole, the first convex edge and the second convex edge are elastically deformed, so that the rotating shaft can be fixed at a certain specific angle and will not be randomly deflected after rotation.

[0014] Further, the first convex edge and the second convex edge are both semicircular in cross section.

[0015] Further, the central angle of the circular arc surface of the guide groove is 150°-200°.

[0016] A puncture needle assembly comprises the positioning support for assisting puncture and the puncture needle.

[0017] The outer surface of the needle body of the puncture needle can be slidably matched with the guide groove; the guide groove is used for limiting the puncture direction and the puncture angle of the puncture needle.

[0018] The technical scheme of the utility model can at least realize one of the following effects:

[0019] 1. The positioning support for assisting puncture and the puncture needle assembly can limit the puncture depth by adjusting the height of the telescopic column; the guide seat of the positioning support limits the maximum stroke of the end of the puncture needle, and then the distance between the guide seat and the puncture part of the patient can be adjusted by adjusting the height of the telescopic column, so that the puncture depth of the puncture needle can be controlled.

[0020] 2. The positioning support and puncture needle assembly for assisting puncture, the inclination angle of the guide groove is adjusted through the rotatable guide seat, and then the puncture direction of the puncture needle is limited through the guide groove, so that the accuracy of the puncture direction is guaranteed; and since the rotating shaft and the hinge seat of the telescopic stand are connected in damping, the guide groove angle adjustment is completed without random rotation, and the posture maintaining effect is achieved.

[0021] 3. The positioning support and puncture needle assembly for assisting puncture, the guide groove of the positioning support provides the guiding function of the puncture needle puncture process, guarantees the accuracy of the puncture direction and the puncture angle, and the displacement stroke of the puncture needle can be limited by the guide seat, so that the phenomenon of excessive puncture caused by excessive force can be avoided.

[0022] In the utility model, the above-mentioned technical schemes can be combined with each other to realize more preferred combination schemes. Other features and advantages of the utility model will be described in the subsequent specification, and part of the advantages can become apparent from the specification, or be understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the contents specially pointed out in the specification and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings are only used for the purpose of showing specific embodiments, and are not considered as limitations of the utility model, and the same reference signs represent the same parts in the whole drawings.

[0024] Figure 1 It is the structure schematic view of the positioning support for assisting puncture of the utility model embodiment 1;

[0025] Figure 2 It is the structure schematic view of the support column assembly of the positioning support in the utility model; Figure 1

[0026] Figure 3 It is the local enlarged view of the support column assembly in the utility model; Figure 2

[0027] Figure 4 It is the side view of the support column assembly in the utility model; Figure 2

[0028] Figure 5 It is the structure schematic view of the rotating assembly of the positioning support in the utility model; Figure 1

[0029] Figure 6 It is the hinge state schematic view of the hinge seat of the support column assembly and the rotating shaft of the rotating assembly in the utility model; Figure 1

[0030] Figure 7 ​​​​​This is one of the schematic diagrams showing the usage state of the puncture needle assembly in Embodiment 2 of this utility model;

[0031] Figure 8 This is the second schematic diagram of the puncture needle assembly in use according to Embodiment 2 of this utility model.

[0032] Figure label:

[0033] 1-Support base; 2-Support column; 201-Fixed column; 202-Connecting part; 203-Threaded column; 3-Adjusting sleeve; 4-Hinge seat; 5-Rotating shaft; 6-Connecting rod; 7-Guide seat; 8-Guide groove; 9-Hinge shaft hole; 10-First protruding ridge; 11-Second protruding ridge; 12-Punch needle. Detailed Implementation

[0034] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0035] Example 1

[0036] A specific embodiment of this utility model discloses a positioning bracket for assisting puncture, such as... Figure 1 As shown, it includes: a support column assembly and a rotating assembly; the support column assembly is supported on the side of the patient's puncture site; the rotating assembly is rotatably mounted on the upper end of the support column assembly; the support column assembly includes: a support base 1 and a telescopic column; the telescopic column is installed perpendicular to the support base 1 and its height is adjustable; the rotating assembly includes: a rotating shaft 5 and a guide seat 7; the rotating shaft 5 is hinged to the upper end of the telescopic column; the guide seat 7 is fixedly connected to the rotating shaft 5, and the upper end surface of the guide seat 7 is provided with a guide groove 8; the surface of the guide groove 8 is arc-shaped and can be used to guide the puncture needle 12.

[0037] In a preferred embodiment of this utility model, the support base 1 is made of a soft metal material, such as aluminum or its alloy, so that it can fit into the part of the human body that needs to be punctured.

[0038] In one specific embodiment of this utility model, such as Figure 2 , Figure 4 As shown, the retractable column includes: a support column 2, an adjusting sleeve 3, and a hinge seat 4; the support column 2 is fixedly connected to the support base 1; the adjusting sleeve 3 is sleeved with the support column 2, and the adjusting sleeve 3 is provided with an internal thread, while the surface of the support column 2 is provided with an external thread. The length of the retractable column is adjusted by adjusting the degree of engagement of the internal and external threads.

[0039] Furthermore, such as Figure 4 As shown, the hinge seat 4 is fixedly installed on the upper end of the adjusting sleeve 3, and the hinge seat 4 is provided with a hinge shaft hole 9 in the middle.

[0040] The rotating shaft 5 is rotatably installed in the hinge shaft hole 9. When the rotating shaft 5 rotates in the hinge shaft hole 9, it can drive the guide seat 7 to change its tilt angle relative to the telescopic column, thereby realizing the change of the tilt angle of the guide groove 8.

[0041] Furthermore, such as Figure 3 As shown, the hinge shaft hole 9 is a cylindrical hole, and the surface of the hinge shaft hole 9 is provided with a plurality of second protruding ridges 11 arranged in a circumferential array; the second protruding ridges 11 are used to provide resistance when the rotating shaft 5 rotates relative to the hinge shaft hole 9.

[0042] Preferably, such as Figure 3 As shown, the cross-section of the second protruding ridge 11 is semi-circular.

[0043] In one specific embodiment of this utility model, such as Figure 5 As shown, the rotating shaft 5 and the guide seat 7 are connected as one unit by a connecting rod 6.

[0044] Furthermore, such as Figure 5 As shown, the surface of the rotating shaft 5 is provided with a plurality of first protruding ridges 10 arranged in a circumferential array; the first protruding ridges 10 are used to cooperate with the second protruding ridges 11 to provide resistance to the rotation of the rotating shaft 5.

[0045] Preferably, such as Figure 6 As shown, the first protrusion 10 is engaged in the gap between two adjacent second protrusions 11 on the hinge shaft hole 9. When the rotating shaft 5 rotates relative to the hinge shaft hole 9, both the first protrusion 10 and the second protrusion 11 undergo elastic deformation / compression deformation.

[0046] In other words, when the guide seat 7 needs to be rotated to adjust the tilt angle of the guide groove 8, the rotating shaft 5 rotates relative to the hinge seat 4, and the first protrusion 10 and the second protrusion 11 are squeezed and deformed. The rotation of the rotating shaft 5 needs to overcome the force required to cause the first protrusion 10 and the second protrusion 11 to elastically deform, so that the rotating shaft 5 can be fixed at a certain angle after rotation and will not deflect arbitrarily.

[0047] Preferably, the cross-section of the first protruding ridge 10 is semi-circular.

[0048] Preferably, the height of both the first protruding ridge 10 and the second protruding ridge 11 is no greater than 2 mm.

[0049] Preferably, the thickness of the interlaced overlapping portion of the first ridge 10 and the two adjacent second ridges 11 is not greater than 0.5 mm when the first ridge 10 is inserted into the gap between the two adjacent second ridges 11.

[0050] In one embodiment of the utility model, the central angle corresponding to the arc surface of the guide groove 8 is 150-200°; preferably, the central angle corresponding to the arc surface of the guide groove 8 is 180°.

[0051] Further, when the central angle corresponding to the arc surface of the guide groove 8 is less than 180°, the guide seat 7 is made of metal or metal alloy, for example, stainless steel.

[0052] Further, when the central angle corresponding to the arc surface of the guide groove 8 is greater than 180°, the guide seat 7 is made of hard plastic; when the puncture needle 12 is inserted into or removed from the guide groove 8, the edge (weak part) of the guide groove 8 elastically deforms, facilitating the cooperation or disengagement of the puncture needle 12 and the positioning support under the premise of providing reliable guiding function.

[0053] Embodiment 2

[0054] In one embodiment of the utility model, a puncture needle assembly is provided, which comprises the positioning support for assisting puncture of embodiment 1 and the puncture needle 12; as shown in Figure 7 、 Figure 8 .

[0055] Specifically, the outer surface of the needle body of the puncture needle 12 can be slidably fitted with the guide groove 8; the orientation and angle of the guide groove 8 are used to limit the puncture orientation and puncture angle of the puncture needle 12, avoiding the deflection of the puncture direction; when the needle body slides in the guide groove 8, it can be punctured into the human body.

[0056] In implementation, first, the support base 1 is supported on the side of the puncture part of the patient, which can be supported on the patient's limbs with the aid of tools; then, the height of the telescopic column and the inclination angle of the guide seat 7 are adjusted, so that the direction of the guide groove 8 coincides with the expected puncture direction of the puncture needle 12; further, the needle body of the puncture needle 12 is fitted with the guide groove 8; finally, the end of the puncture needle 12 is held for puncture, and the needle body of the puncture needle 12 slides along the guide groove 8 during puncture.

[0057] The puncture needle assembly of the utility model provides the guiding function of the puncture process of the puncture needle 12 through the guide groove 8, ensures the accuracy of the puncture orientation and puncture angle, and at the same time, the guide seat 7 can limit the displacement stroke of the puncture needle 12, which can avoid the phenomenon of excessive puncture due to excessive force.

[0058] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A positioning stand for assisting puncture, characterized by, The utility model relates to a kind of positioning support and puncture needle for assisting puncture, including: Support column assembly and rotating assembly; The support column assembly is supported at the side of the part of patient to be punctured; The rotating assembly is rotatably installed in the upper end of the support column assembly;The support column assembly includes support base (1) and telescopic stand;The telescopic stand is installed perpendicularly to the support base (1), and height is adjustable;The rotating assembly includes rotating shaft (5) and guide seat (7);The rotating shaft (5) is used to be hingedly connected with the upper end of the telescopic stand;The guide seat (7) is fixedly connected with the rotating shaft (5), and the upper end surface of the guide seat (7) is provided with guide groove (8);The surface of the guide groove (8) is cambered surface, which can be used to guide puncture needle (12).

2. The positioning support for assisted puncture according to claim 1, characterized in that, The telescopic stand includes support stand (2), adjusting sleeve (3) and hinged seat (4);The support stand (2) is fixedly connected with the support base (1);The adjusting sleeve (3) is mutually sleeved with the support stand (2), and the adjusting sleeve (3) is threadedly connected with the support stand (2).

3. The positioning support for assisted puncture according to claim 2, characterized in that, The hinged seat (4) is fixedly installed in the upper end of the adjusting sleeve (3), and the middle part of the hinged seat (4) is provided with hinged shaft hole (9);The rotating shaft (5) is rotatably installed in the hinged shaft hole (9).

4. The positioning support for assisted puncture according to claim 3, characterized in that, The surface of the hinged shaft hole (9) is provided with a plurality of second ribs (11) of circumferential array;The second rib (11) is used to provide resistance when the rotating shaft (5) rotates relative to the hinged shaft hole (9).

5. Positioning support for assisting puncture according to any of claims 1-4, characterized in that, The rotating shaft (5) and the guide seat (7) are connected as a whole through connecting rod (6).

6. The positioning armature for assisted puncture according to claim 4, characterized in that The surface of the rotating shaft (5) is provided with a plurality of first ribs (10) of circumferential array distribution;The first rib (10) is used to cooperate with the second rib (11) to provide resistance when the rotating shaft (5) rotates.

7. The positioning support for assisted puncture according to claim 6, characterized in that, The first rib (10) is clamped in the gap between two adjacent second ribs (11) on the hinged shaft hole (9), when the rotating shaft (5) rotates relative to the hinged shaft hole (9), the first rib (10) and the second rib (11) are elastically deformed, so that the rotating shaft (5) can be fixed at a certain angle after rotation without arbitrary deflection.

8. The positioning armature for assisted puncture according to claim 7, characterized in that The cross section of the first rib (10) and the second rib (11) is semicircular.

9. The positioning armature for assisted puncture according to claim 1, characterized in that The central angle corresponding to the arc surface of the guide groove (8) is 150°-200°.

10. A puncture needle assembly characterized by, Including: The positioning support and puncture needle (12) for assisting puncture of any one of claims 1-9, and puncture needle (12); The outer surface of the needle body of the puncture needle (12) can be slidably fitted with the guide groove (8);The guide groove (8) is used to limit the puncture direction and puncture angle of the puncture needle (12).

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