Guide device for butt joint of puncture guide wire and puncture sheath
By designing a puncture guide wire and puncture sheath docking guide device including a base, a guide wire guide groove and a puncture sheath positioner, the problem of difficulty in docking the guide wire and the sheath tube in the PICC tube is solved, and the precise butt and efficient insertion of the guide wire and the sheath tube are achieved.
Patent Information
- Application Number
- CN202421402919.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-19
AI Technical Summary
During the PICC catheterization process, it is difficult to connect the puncture guide wire with the puncture sheath, and it requires repeated trials and easy to pierce the fingers.
A guide device for connecting the puncture guide wire to the puncture sheath is designed, including a base, a guide wire guide groove, a positioning groove, a guide wire guide member, a puncture sheath positioning member and other components. Through the coordination of the sheath groove, a guide wire guide groove and a cone groove, the precise alignment and insertion of the guide wire and the sheath can be achieved.
Improves the accuracy and efficiency of the butt between the guidewire and the puncture sheath, reduces the repeated operation of manual alignment insertion, and avoids the risk of piercing the finger.
Smart Images
Figure CN222788299U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical supplies, in particular to a guiding device for docking a puncture guide wire with a puncture sheath. Background Art
[0002] PICC, or Peripherally Inserted Central Catheter (PICC), is a central venous access commonly used in critically ill patients and patients who require long-term intravenous treatment. It is inserted through the vein of the upper limb and can avoid some complications associated with central venous catheters, such as pneumothorax.
[0003] The modified Sedinger technique is often used in PICC catheterization. First, a fine needle puncture is performed, and then a puncture guide wire is inserted from the fine needle. The fine needle is removed, and then the puncture sheath is inserted along the puncture guide wire. The guide wire is removed, and the catheter is inserted along the sheath. When the puncture guide wire is inserted into the puncture sheath, the openings of the guide wire and the puncture sheath are very small, and it is not easy to align them. It requires repeated attempts many times, and it is easy to prick the fingers. Utility Model Content
[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a guiding device for docking a puncture guide wire with a puncture sheath, which can guide the guide wire and the puncture sheath to be aligned and then inserted, thereby improving the accuracy and efficiency of the operation.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0006] A guiding device for docking a puncture guide wire with a puncture sheath, comprising: a base, a guide wire guiding groove extending toward the right is provided at the left end of the upper surface, and a positioning groove extending toward the left is provided at the right end, the guide wire guiding groove and the positioning groove are coaxially arranged, the cross-sectional profile of the guide wire guiding groove is smaller than the positioning groove so that a positioning abutting step surface is formed at the left end of the positioning groove; a guide wire guide piece, which is detachably connected to the base and is provided with a first positioning portion embedded in the positioning groove, the left end of the guide wire guide piece is abutted against the positioning abutting step surface, and a conical groove is provided on the upper surface, the left end of the conical groove is connected with the guide wire guiding groove, and the conical groove is gathered toward the right; a puncture sheath positioning piece, which is detachably connected to the base and is provided with a second positioning portion embedded in the positioning groove, and a sheath tube groove is provided on the upper surface, the left end of the sheath tube groove is connected with the right end of the conical groove; the guide wire guiding groove, the conical groove and the sheath tube groove are coaxially arranged and all have openings at the upper ends.
[0007] Furthermore, the front and rear sides of the positioning groove are provided with sunken spaces, and the front and rear sides of the upper end of the first positioning portion are provided with a first block embedded in the sunken spaces.
[0008] Furthermore, the front and rear sides of the upper end of the second positioning portion are provided with second blocks which are embedded and sunk to make way.
[0009] Furthermore, a vertical block is provided at the bottom of the second building block, a clamping block extending to the right is provided at the bottom of the vertical block, and a limiting groove opening to the right is formed among the vertical block, the clamping block and the second building block; an embedding groove is provided at the bottom of the sinking and giving way for the vertical block and the clamping block to be embedded; a limiting block is provided at the upper end of the right side wall of the embedding groove; the limiting groove is used for the limiting block to be embedded; the vertical block and the clamping block are embedded in the embedding groove, and the left end of the puncture sheath positioning piece is abutted against the guide wire guide piece to keep the limiting block embedded in the limiting groove.
[0010] Furthermore, the vertical blocks, the clamping blocks, the embedding grooves and the limiting blocks are distributed in four groups in a matrix.
[0011] Furthermore, the upper edge of the right end of the clamping block and the lower edge of the left end of the limiting block are both chamfered.
[0012] Furthermore, the first building block is installed with a first magnetic attraction component, and the base is installed with a second magnetic attraction component corresponding to the first magnetic attraction component, and there is a magnetic force of mutual attraction between the first magnetic attraction component and the second magnetic attraction component.
[0013] Furthermore, a first installation groove is provided on the outer side of the first building block, and the first magnetic attraction component is embedded in the first installation groove.
[0014] Furthermore, a hand-gripping groove is provided on the outer side of the first building block.
[0015] Furthermore, a limiting ring located above the guide wire guiding groove is provided at the left end of the base, and a notch is provided on one side of the limiting ring.
[0016] The utility model has the following beneficial effects:
[0017] The sheath is positioned using the sheath groove, and the guide wire guide groove is used to initially guide the guide wire insertion, and then the cone groove is used to gradually align the guide wire with the sheath and finally accurately insert it into the sheath, thereby achieving accurate insertion of the guide wire into the sheath of the puncture sheath, avoiding repeated operations during manual alignment and insertion, and avoiding pricking fingers. The guide wire and puncture sheath can be guided to align and then be inserted, thereby improving the accuracy and efficiency of the operation and achieving fast and accurate docking. In addition, the positioning groove can also coaxially position the guide wire guide and the puncture sheath positioning part, and the positioning abutment step surface can also provide the guide wire guide for positioning and abutment, and both the guide wire guide and the puncture sheath positioning part are detachable for easy replacement.
[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0020] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;
[0021] Figure 2 yes Figure 1 Schematic diagram of the decomposed state structure;
[0022] Figure 3 It is a cutaway stereogram of an embodiment of the utility model;
[0023] Figure 4 yes Figure 3 A magnified view of point A;
[0024] Figure 5 It is a schematic diagram of the structure of the base;
[0025] Figure 6 is a schematic diagram of the structure of the puncture sheath positioning component;
[0026] Figure 7 It is a schematic diagram of the operation of docking a guide wire and a puncture sheath in the prior art.
[0027] Legend:
[0028] Base 100, guide wire guide groove 110, positioning abutting step surface 111, positioning groove 120, sinking and giving way 121, embedding groove 122, limiting block 123, second magnetic attraction member 130, limiting ring 140, notch 141, second installation groove 150;
[0029] The guide wire guide 200, the first positioning portion 210, the cone groove 220, the first step 230, the first installation groove 231, the hand groove 232, and the first magnetic attraction member 240;
[0030] The puncture sheath positioning member 300 , the second positioning portion 310 , the sheath tube groove 320 , the second stepping block 330 , the vertical block 331 , the clamping block 332 , and the limiting groove 333 . DETAILED DESCRIPTION
[0031] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0034] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0035] like Figure 7 As shown, in the prior art, the guide wire 101 needs to be manually aligned with the sheath tube 103 of the puncture sheath 102 to achieve docking insertion, but the diameters of the guide wire 101 and the sheath tube 103 are both small, so docking is difficult, multiple dockings are required, and fingers may be injured. Therefore, the present invention provides a guiding device for docking a puncture guide wire with a puncture sheath.
[0036] Please refer to Figure 1 and Figure 2 A guiding device for docking a puncture guide wire and a puncture sheath in a preferred embodiment of the present invention comprises a base 100, a guide wire guide 200, and a puncture sheath positioning member 300. The base 100, the guide wire guide 200, and the puncture sheath positioning member 300 can be made of plastic or metal.
[0037] A guide wire guide groove 110 extending to the right is provided at the left end of the upper surface of the base 100, and a positioning groove 120 extending to the left is provided at the right end of the base 100. The guide wire guide groove 110 is coaxially arranged with the positioning groove 120, and the cross-sectional profile of the guide wire guide groove 110 is smaller than the positioning groove 120 so that a positioning abutting step surface 111 is formed at the left end of the positioning groove 120. The guide wire guide 200 is detachably connected to the base 100, and the guide wire guide 200 is provided with a first positioning portion 210 embedded in the positioning groove 120, and the left end of the guide wire guide 200 is in contact with the positioning abutting step surface 111, and a cone groove 220 is provided on the upper surface of the guide wire guide 200, and the left end of the cone groove 220 is connected to the guide wire guide groove 110, and the cone groove 220 is gathered to the right.
[0038] The puncture sheath positioning member 300 is detachably connected to the base 100. The puncture sheath positioning member 300 is provided with a second positioning portion 310 embedded in the positioning groove 120. The upper surface of the puncture sheath positioning member 300 is provided with a sheath groove 320, and the left end of the sheath groove 320 is connected to the right end of the cone groove 220. The guide wire guide groove 110, the cone groove 220 and the sheath groove 320 are coaxially arranged and all have upper openings, so that after the guide wire is inserted into the puncture sheath, it can be directly detached from the upper movement, which is convenient for subsequent operations. Specifically, the upper surfaces of the guide wire guide 200 and the puncture sheath positioning member 300 are flush with the upper surface of the base 100; the central axes of the guide wire guide groove 110, the cone groove 220 and the sheath groove 320 are all flush with the upper surface of the base 100.
[0039] The utility model provides a guiding device for docking a puncture guide wire with a puncture sheath, which uses the sheath groove 320 to position the sheath, and then uses the guide wire guiding groove 110 to preliminarily guide the insertion of the guide wire, and then uses the cone groove 220 to gradually align the guide wire with the sheath and finally accurately insert it into the sheath, thereby achieving accurate insertion of the guide wire into the sheath of the puncture sheath, avoiding repeated operations during manual alignment and insertion, and also avoiding pricking fingers, and can guide the guide wire and the puncture sheath to be aligned and then inserted, thereby improving the accuracy and efficiency of the operation; in addition, the positioning groove 120 can also align the guide wire guide 200 and the puncture sheath positioning member 300 is coaxially positioned, and the positioning against the step surface 111 can also provide the guidewire guide 200 with positioning and abutment, and both the guidewire guide 200 and the puncture sheath positioning member 300 are detachable for easy replacement; guidewire guides 200 and puncture sheath positioning members 300 of different specifications can be selected according to needs, and the left end diameter of the conical groove 220 of the guidewire guides 200 of different specifications is the same, and the right end diameter varies, so as to adapt to the docking of guidewires of different diameters, and the sheath tube groove 320 of the puncture sheath positioning members 300 of different specifications has different diameters, so as to adapt to the sheath tubes of puncture sheaths of different diameters.
[0040] Specifically, the sheath groove 320 has a semicircular cross section, and the guide wire guide groove 110 is a tapered groove with a large opening at the left end and a small opening at the right end, so as to facilitate the introduction of the guide wire. The positioning groove 120 has a semicircular cross section, and the bottoms of the first positioning portion 210 and the second positioning portion 310 are both arc surfaces adapted to the positioning groove 120, so as to play a centering role.
[0041] Reference Figure 2 In some embodiments of the present invention, a sunken space 121 is provided on the front and rear sides of the positioning groove 120, and a first block 230 embedded in the sunken space 121 is provided on the front and rear sides of the upper end of the first positioning portion 210, thereby realizing the placement of both sides of the guide wire guide 200, so that the guide wire guide 200 will not rotate along the positioning groove 120 and the position is stable.
[0042] Reference Figure 2 In some embodiments of the present invention, the front and rear sides of the upper end of the second positioning portion 310 are provided with a second block 330 embedded in the sunken space 121, so as to realize the placement of both sides of the puncture sheath positioning member 300, so that the puncture sheath positioning member 300 will not rotate along the positioning groove 120 and the position is stable.
[0043] Reference Figures 3 to 6 The cam 332 is provided with a plurality of locking plates 334, 336 and 337, which are respectively provided with a plurality of locking plates 338 and a plurality of locking plates 339. The locking plates 339 are provided with a plurality of locking plates 331 and a plurality of locking plates 332. When the guide wire guide 200 is in a state of being inserted into the limit groove 333, the limit block 123 is locked and the position of the guide wire guide 200 is fixed.
[0044] Reference Figure 5 In a further embodiment of the present invention, the vertical block 331, the clamping block 332, the embedding groove 122 and the limiting block 123 are distributed in four groups in a matrix, so as to limit the puncture sheath positioning member 300 at multiple positions, so that the overall position of the puncture sheath positioning member 300 is stable.
[0045] Reference Figure 4 and Figure 6 In a further embodiment of the present invention, the upper edge of the right end of the clamping block 332 and the lower edge of the left end of the limiting block 123 are both chamfered to facilitate insertion.
[0046] Reference Figure 1 and Figure 2 In a further embodiment of the utility model, the first block 230 is installed with a first magnetic member 240, and the base 100 is installed with a second magnetic member 130 corresponding to the first magnetic member 240, and there is a magnetic force of mutual attraction between the first magnetic member 240 and the second magnetic member 130. The first magnetic member 240 and the second magnetic member 130 are permanent magnets, and the magnetic poles are arranged oppositely, so as to generate an attractive force, so as to achieve the position fixation of the guide wire guide 200. The guide wire guide 200 can be removed only when a force greater than the magnetic attraction force is applied, which is convenient for disassembly and installation.
[0047] Reference Figure 2 In a further embodiment of the utility model, a first mounting groove 231 is provided on the outer side of the first building block 230, and the first magnetic component 240 is embedded in the first mounting groove 231, thereby realizing the positioning installation of the first magnetic component 240; a second mounting groove 150 is provided below the front and rear sides of the base 100 corresponding to the first mounting groove 231 for the first magnetic component 240 to be embedded and installed.
[0048] Reference Figure 2 In a further embodiment of the present invention, a hand groove 232 is provided on the outer side of the first block 230 to facilitate finger insertion to remove the guide wire guide 200.
[0049] Reference Figure 1 and Figure 3 In a further embodiment of the utility model, a limiting ring 140 is provided at the left end of the base 100 and is located above the guide wire guiding groove 110. A notch 141 is provided on one side of the limiting ring 140. The limiting ring 140 is provided for the guide wire to pass through and limits the guide wire to a certain extent, so that when the guide wire is aligned, the range of movement of the rear end of the guide wire is not large, thereby avoiding the extreme movement of the rear end of the guide wire affecting the docking of its end with the sheath tube of the puncture sheath. The notch 141 can be used for the guide wire to pass through and detach after the docking is completed.
[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A guiding device for docking a puncture guide wire with a puncture sheath, characterized in that: include: A base (100), wherein a guide wire guide groove (110) extending toward the right is provided at the left end of the upper surface, and a positioning groove (120) extending toward the left is provided at the right end of the base (100), wherein the guide wire guide groove (110) and the positioning groove (120) are coaxially arranged, and the cross-sectional profile of the guide wire guide groove (110) is smaller than that of the positioning groove (120) so that a positioning abutting step surface (111) is formed at the left end of the positioning groove (120); A guide wire guide (200) is detachably connected to the base (100), and is provided with a first positioning portion (210) embedded in the positioning groove (120); the left end of the guide wire guide (200) is in contact with the positioning abutment step surface (111); a conical groove (220) is provided on the upper surface; the left end of the conical groove (220) is connected to the guide wire guide groove (110), and the conical groove (220) is gathered toward the right; A puncture sheath positioning member (300) is detachably connected to the base (100), and is provided with a second positioning portion (310) embedded in the positioning groove (120), and a sheath groove (320) is provided on the upper surface, and the left end of the sheath groove (320) is connected to the right end of the cone groove (220); The guide wire guide groove (110), the cone groove (220) and the sheath groove (320) are coaxially arranged and are all opened at the upper ends.
2. The guiding device for docking a puncture guide wire with a puncture sheath according to claim 1, characterized in that: The front and rear sides of the positioning groove (120) are provided with a sunken clearance (121), and the front and rear sides of the upper end of the first positioning portion (210) are provided with a first block (230) embedded in the sunken clearance (121).
3. The guiding device for docking a puncture guide wire with a puncture sheath according to claim 2, characterized in that: The front and rear sides of the upper end of the second positioning portion (310) are provided with a second block (330) embedded in the sunken space (121).
4. The guiding device for docking a puncture guide wire with a puncture sheath according to claim 3, characterized in that: A vertical block (331) is provided at the bottom of the second building block (330), and a clamping block (332) extending to the right is provided at the bottom of the vertical block (331), and a limiting groove (333) opening to the right is formed on the vertical block (331), the clamping block (332) and the second building block (330); an embedding groove (122) is provided at the bottom of the sinking and giving way (121) for the vertical block (331) and the clamping block (332) to be embedded; a limiting block (123) is provided at the upper end of the right side wall of the embedding groove (122); the limiting groove (333) is used for the limiting block (123) to be embedded; the vertical block (331) and the clamping block (332) are embedded in the embedding groove (122), and the left end of the puncture sheath positioning member (300) abuts against the guide wire guide member (200) so that the limiting block (123) remains embedded in the limiting groove (333).
5. The guiding device for docking a puncture guide wire with a puncture sheath according to claim 4, characterized in that: The vertical blocks (331), the clamping blocks (332), the embedding grooves (122) and the limiting blocks (123) are distributed in four groups in a matrix.
6. The guiding device for docking a puncture guide wire with a puncture sheath according to claim 4, characterized in that: The upper edge of the right end of the clamping block (332) and the lower edge of the left end of the limiting block (123) are both chamfered.
7. The guiding device for docking a puncture guide wire with a puncture sheath according to claim 2, characterized in that: The first building block (230) is installed with a first magnetic attraction component (240), and the base (100) is installed with a second magnetic attraction component (130) corresponding to the first magnetic attraction component (240), and there is a magnetic force of mutual attraction between the first magnetic attraction component (240) and the second magnetic attraction component (130).
8. The guiding device for docking a puncture guide wire with a puncture sheath according to claim 7, characterized in that: A first installation groove (231) is provided on the outer side of the first building block (230), and the first magnetic attraction member (240) is embedded in the first installation groove (231).
9. The guiding device for docking a puncture guide wire with a puncture sheath according to claim 7, characterized in that: A hand-gripping groove (232) is provided on the outer side of the first building block (230).
10. The guiding device for docking a puncture guide wire and a puncture sheath according to claim 1, characterized in that: A limiting ring (140) is provided at the left end of the base (100) and is located above the guide wire guiding groove (110), and a notch (141) is provided on one side of the limiting ring (140).