An easily operable catheter sheath

Abstract

The utility model discloses an easy to operate's catheter sheath belongs to medical technical field, including catheter sheath subassembly and dilator still includes locking assembly and cutting adjustment subassembly, the dilator is used in cooperation and is inserted with catheter sheath subassembly, and the locking between catheter sheath subassembly and dilator is locked with locking assembly, and locking assembly is connected with catheter sheath subassembly, the cutting adjustment subassembly includes cutting assembly and adjustment assembly, through above -mentioned mode, the utility model has realized the tearing of catheter sheath subassembly conveniently.

Description

Technical Field

[0001] This utility model relates to the field of medical technology, specifically to an easy-to-operate catheter sheath. Background Technology

[0002] Currently, there is a type of catheter sheath with a radiopaque groove on its outer wall. Its function is to provide radiopaque contrast during surgery. At the same time, when removing the catheter sheath, it can be torn along the radiopaque groove for quick removal, saving surgical time.

[0003] However, currently, the imaging line tank needs to be torn open by medical staff by hand, which presents a problem of difficulty in controlling the force.

[0004] Based on this, the present invention designs an easy-to-operate catheter sheath to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an easy-to-operate catheter sheath.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An easy-to-operate catheter sheath includes a catheter sheath assembly and a dilator, and also includes a locking assembly and a cutting adjustment assembly;

[0008] The dilator is used in conjunction with the catheter sheath assembly, and the catheter sheath assembly and the dilator are locked together by a locking component, which is connected to the catheter sheath assembly.

[0009] The cutting adjustment assembly includes a cutting assembly and an adjustment assembly;

[0010] The cutting assembly has two sets and is symmetrically installed on the inner side of the catheter sheath assembly. The adjusting assembly is installed on the outer side of the catheter sheath assembly. The cutting assembly is connected to the adjusting assembly and works with the catheter sheath assembly for guiding and cutting.

[0011] Furthermore, the catheter sheath assembly includes a catheter sheath and a tapered outer sheath;

[0012] The outer wall of the catheter sheath is symmetrically provided with imaging grooves. The catheter sheath and the conical outer sheath are used in conjunction. The locking component is connected to the conical outer sheath. The dilator is fitted and slides against the inner wall of the catheter sheath. Both the catheter sheath and the conical outer sheath are connected to the cutting adjustment component.

[0013] Furthermore, the catheter sheath assembly also includes an L-shaped rod and a retaining pin;

[0014] Two L-shaped rods are fixedly installed symmetrically on the top of the catheter sheath, and the L-shaped rods are detachably connected to the inner wall of the conical outer sheath.

[0015] Furthermore, there are two symmetrical fixing pins fixedly installed on the inner wall of the conical outer sheath, and the upper end face of the L-shaped rod has a through hole for engaging with the fixing pins.

[0016] Furthermore, the locking component includes a mounting plate and a locking block;

[0017] The middle part of the mounting plate is fixedly connected to the upper side of the expander, and a platform is fixedly installed at the bottom of the mounting plate. Multiple locking blocks are fixedly installed at equal intervals on the upper side of the outer wall of the conical outer sheath.

[0018] The platform is provided with slots at equal intervals for locking blocks to pass through, and the locking blocks are engaged with the inner wall of the platform.

[0019] Furthermore, the cutting assembly includes a cutter, a spring shaft, and an abutment pin;

[0020] The inner wall of the conical outer sheath has a storage groove for storing the cutter. The lower end of the cutter is hinged to the inner wall of the storage groove by a spring shaft. The abutment pin is slidably connected to the conical outer sheath. One end of the abutment pin is slidably connected to the back side of the cutter, and the other end of the abutment pin is connected to the adjustment component.

[0021] Furthermore, the adjustment assembly includes an outer jacket, a clamping plate, and a ramp;

[0022] The upper end of the inner wall of the outer sheath has an inclined surface for sliding connection with the other end of the abutment pin. The inner wall of the outer sheath is slidably connected to the abutment pin. Multiple clamps are fixedly installed at equal intervals at the bottom of the outer sheath. The lower side of the inner wall of the clamp is in contact with the outer wall of the catheter sheath.

[0023] Furthermore, the outer sheath is threadedly connected to the tapered outer sheath.

[0024] Furthermore, the adjustment component also includes a locking strip;

[0025] A retaining strip is fixedly installed on the lower inner wall of the clamp, and a retaining groove is provided on the outer wall of the catheter sheath for engaging with the retaining strip.

[0026] Furthermore, the adjustment assembly also includes a convex ring and a conical ring. The convex ring is fixedly installed on the upper side of the inner wall of the clamping plate, and the conical ring is fixedly installed on the bottom of the conical outer sheath. The conical surface of the conical ring slides in contact with the convex ring.

[0027] Compared with the prior art, the advantages of this utility model are as follows: When this utility model is used, by adjusting the components, the cutting part of the cutting component moves to the position to cut the catheter sheath assembly, thereby facilitating the tearing of the catheter sheath assembly. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This utility model provides a three-dimensional catheter sheath that is easy to operate. Figure 1 ;

[0030] Figure 2 This is a front view of an easy-to-operate catheter sheath according to the present invention;

[0031] Figure 3 This utility model provides a three-dimensional catheter sheath that is easy to operate. Figure 2 ;

[0032] Figure 4 This invention provides a partial three-dimensional representation of an easy-to-operate catheter sheath. Figure 1 ;

[0033] Figure 5 This invention provides a partial three-dimensional representation of an easy-to-operate catheter sheath. Figure 2 ;

[0034] Figure 6 For along Figure 3 A three-dimensional image with a portion removed along the AA direction;

[0035] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0036] Figure 8 for Figure 6 A magnified view of point C in the middle.

[0037] The labels in the diagram represent:

[0038] 1. Catheter sheath assembly 11. Catheter sheath 12. Imaging groove 13. L-shaped rod 14. Conical outer sheath 15. Fixing pin 2. Diverter 3. Locking assembly 31. Mounting plate 32. Groove 33. Locking block 4. Cutting adjustment assembly 41. Cutting assembly 411. Cutter 412. Spring shaft 413. Storage groove 414. Abutting pin 42. Adjustment assembly 421. Outer sleeve 422. Clamping plate 423. Bevel 424. Locking strip 425. Locking groove 426. Protruding ring 427. Conical ring. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0040] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0041] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-8 An easy-to-operate catheter sheath includes a catheter sheath assembly 1 and a dilator 2, and also includes a locking assembly 3 and a cutting adjustment assembly 4;

[0042] The dilator 2 is used in conjunction with the catheter sheath assembly 1. The catheter sheath assembly 1 and the dilator 2 are locked together by the locking component 3, which is connected to the catheter sheath assembly 1.

[0043] The cutting adjustment assembly 4 includes a cutting assembly 41 and an adjustment assembly 42;

[0044] Two sets of cutting components 41 are symmetrically installed on the inner side of the catheter sheath assembly 1, and the adjusting component 42 is installed on the outer side of the catheter sheath assembly 1. The cutting component 41 is connected to the adjusting component 42, and the cutting component 41 and the catheter sheath assembly 1 are used together for guiding and cutting.

[0045] When this utility model is in use, by adjusting component 42, the cutting part of cutting component 41 is moved to the position to cut catheter sheath component 1, thereby facilitating the tearing of catheter sheath component 1.

[0046] The catheter sheath assembly 1 includes a catheter sheath 11, a radiopaque groove 12, and a conical outer sheath 14;

[0047] The outer wall of the catheter sheath 11 is symmetrically provided with imaging grooves 12. The catheter sheath 11 is used in conjunction with the conical outer sheath 14. The locking component 3 is connected to the conical outer sheath 14. The dilator 2 is fitted and slids against the inner wall of the catheter sheath 11. Both the catheter sheath 11 and the conical outer sheath 14 are connected to the cutting adjustment component 4.

[0048] The catheter sheath assembly 1 also includes an L-shaped rod 13 and a fixing pin 15;

[0049] Two L-shaped rods 13 are fixedly installed on the top of the catheter sheath 11 in a symmetrical manner. The L-shaped rods 13 are detachably connected to the inner wall of the conical outer sheath 14.

[0050] Two fixing pins 15 are symmetrically fixedly installed on the inner wall of the conical outer sheath 14, and the upper end face of the L-shaped rod 13 is provided with a through hole for engaging with the fixing pins 15.

[0051] Locking component 3 includes mounting plate 31 and locking block 33;

[0052] The middle part of the mounting plate 31 is fixedly connected to the upper side of the expander 2. A platform is fixedly installed at the bottom of the mounting plate 31. Multiple locking blocks 33 are fixedly installed on the upper side of the outer wall of the conical outer sheath 14 at equal intervals.

[0053] The platform is provided with slots 32 at equal intervals for locking blocks 33 to pass through, and the locking blocks 33 are engaged with the inner wall of the platform.

[0054] When this utility model is in use, when the conical outer sheath 14 is locked to the expander 2, the locking block 33 is passed through the slot 32, and then the mounting plate 31 is rotated so that the locking block 33 is engaged with the inner side of the platform.

[0055] The cutting assembly 41 includes a cutter 411, a spring shaft 412, and an abutment pin 414;

[0056] The inner wall of the conical outer sheath 14 is provided with a storage groove 413 for storing the cutter 411. The lower end of the cutter 411 is hinged to the inner wall of the storage groove 413 by a spring pivot 412. The abutment pin 414 is slidably connected to the conical outer sheath 14. One end of the abutment pin 414 is slidably connected to the back side of the cutter 411, and the other end of the abutment pin 414 is connected to the adjustment component 42.

[0057] Adjustment assembly 42 includes an outer sleeve 421, a clamping plate 422, and an inclined surface 423;

[0058] The upper end of the inner wall of the outer jacket 421 is provided with a bevel 423 for sliding connection with the other end of the abutment pin 414. The inner wall of the outer jacket 421 is in sliding connection with the abutment pin 414. Multiple clamping plates 422 are fixedly installed at equal intervals at the bottom of the outer jacket 421. The lower side of the inner wall of the clamping plate 422 is in contact with the outer wall of the catheter sheath 11. The outer jacket 421 is threadedly connected to the conical outer sheath 14.

[0059] The adjustment assembly 42 also includes a retaining strip 424, a retaining groove 425, a convex ring 426, and a conical ring 427;

[0060] A retaining strip 424 is fixedly installed on the lower inner wall of the clamping plate 422. A retaining groove 425 is opened on the outer wall of the catheter sheath 11 to engage with the retaining strip 424. A convex ring 426 is fixedly installed on the upper inner wall of the clamping plate 422. A conical ring 427 is fixedly installed on the bottom of the conical outer sheath 14. The conical surface of the conical ring 427 slides in contact with the convex ring 426.

[0061] When this utility model is in use, when it is necessary to tear the catheter sheath 11 along the developing groove 12, rotate the outer sleeve 421. The outer sleeve 421 and the conical outer sheath 14 move threadedly. The inclined surface 423 of the outer sleeve 421 pushes the abutment pin 414 to move. The abutment pin 414 pushes the cutter 411 to move, so that the abutment pin 414 moves to the position to cut the developing groove 12. At this time, the conical ring 427 slides along the convex ring 426. Under the abutment and pushing action of the conical ring 427, the convex ring 426 pushes up the upper side of the inner wall of the clamp 422, so that the clamp 422 and the driving strip 424 are disengaged from the slot 425. At this time, pull the L-shaped rod 13 and make the through hole of the L-shaped rod 13 disengage from the fixing pin 15. Continue to pull the L-shaped rod 13. The L-shaped rod 13 drives the catheter sheath 11 to move. The catheter sheath 11 drives the developing groove 12 on it to be cut along the cutter 411.

[0062] This solves the problem of difficulty in controlling the force when medical staff manually tear open the imaging groove 12.

[0063] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An easy to operate catheter sheath comprising a catheter sheath assembly (1) and a dilator (2), characterized in that: It also includes a locking component (3) and a cutting adjustment component (4); The dilator (2) is used in conjunction with the catheter sheath assembly (1). The catheter sheath assembly (1) and the dilator (2) are locked together by a locking assembly (3), which is connected to the catheter sheath assembly (1). The cutting adjustment assembly (4) includes a cutting assembly (41) and an adjustment assembly (42); The cutting assembly (41) has two sets and is symmetrically installed on the inner side of the catheter sheath assembly (1). The adjusting assembly (42) is installed on the outer side of the catheter sheath assembly (1). The cutting assembly (41) is connected to the adjusting assembly (42). The cutting assembly (41) and the catheter sheath assembly (1) are used together for guiding and cutting.

2. The easy-to-operate catheter sheath of claim 1, wherein, The catheter sheath assembly (1) includes a catheter sheath (11) and a conical outer sheath (14); The outer wall of the catheter sheath (11) is symmetrically provided with imaging grooves (12). The catheter sheath (11) is used in conjunction with the conical outer sheath (14). The locking component (3) is connected to the conical outer sheath (14). The dilator (2) is fitted and slids against the inner wall of the catheter sheath (11). Both the catheter sheath (11) and the conical outer sheath (14) are connected to the cutting adjustment component (4).

3. The easy-to-operate catheter sheath according to claim 2, characterized in that, The catheter sheath assembly (1) also includes an L-shaped rod (13) and a fixing pin (15); Two L-shaped rods (13) are fixedly installed on the top of the catheter sheath (11) in a symmetrical manner. The L-shaped rods (13) are detachably connected to the inner wall of the conical outer sheath (14).

4. The easy-to-operate catheter sheath according to claim 3, characterized in that, There are two fixed pins (15) that are symmetrically fixed on the inner wall of the conical outer sheath (14). The upper end face of the L-shaped rod (13) is provided with a through hole for engaging with the fixed pins (15).

5. The easy-to-operate catheter sheath according to claim 4, characterized in that, The locking component (3) includes a mounting plate (31) and a locking block (33); The middle part of the mounting plate (31) is fixedly connected to the upper side of the expander (2), and a platform is fixedly installed at the bottom of the mounting plate (31). Multiple locking blocks (33) are fixedly installed on the upper side of the outer wall of the conical outer sheath (14) at equal intervals. The platform is provided with slots (32) at equal intervals through which locking blocks (33) pass. The locking blocks (33) are engaged with the inner wall of the platform.

6. The easy-to-operate catheter sheath according to claim 5, characterized in that, The cutting assembly (41) includes a cutter (411), a spring shaft (412), and an abutment pin (414); The inner wall of the conical outer sheath (14) is provided with a storage groove (413) for storing the cutter (411). The lower end of the cutter (411) is hinged to the inner wall of the storage groove (413) by a spring pivot (412). The abutment pin (414) is slidably connected to the conical outer sheath (14). One end of the abutment pin (414) is slidably connected to the back side of the cutter (411), and the other end of the abutment pin (414) is connected to the adjustment component (42).

7. The easy-to-operate catheter sheath according to claim 6, characterized in that, The adjustment assembly (42) includes an outer sleeve (421), a clamping plate (422), and an inclined surface (423); The upper end of the inner wall of the outer jacket (421) is provided with a sloping surface (423) for sliding connection with the other end of the abutment pin (414). The inner wall of the outer jacket (421) is in sliding connection with the abutment pin (414). Multiple clamping plates (422) are fixedly installed at equal intervals at the bottom of the outer jacket (421). The lower side of the inner wall of the clamping plate (422) is in contact with the outer wall of the catheter sheath (11).

8. The easy-to-operate catheter sheath according to claim 7, characterized in that, The outer sheath (421) is threadedly connected to the tapered outer sheath (14).

9. The easy-to-operate catheter sheath according to claim 8, characterized in that, The adjustment component (42) also includes a retaining strip (424); A retaining strip (424) is fixedly installed on the lower inner wall of the clamp (422), and a retaining groove (425) is provided on the outer wall of the catheter sheath (11) for engaging with the retaining strip (424).

10. The easily operable catheter sheath according to any one of claims 7-9, characterized in that, The adjustment assembly (42) also includes a convex ring (426) and a conical ring (427). The convex ring (426) is fixedly installed on the upper side of the inner wall of the clamp (422), and the conical ring (427) is fixedly installed on the bottom of the conical outer sheath (14). The conical surface of the conical ring (427) slides in contact with the convex ring (426).

Images