Rotatable sheath base and catheter sheath

Abstract

The utility model relates to a rotatable sheath base and a catheter sheath, and belongs to the technical field of medical instruments. The rotatable sheath base comprises a sheath base body capable of being torn symmetrically and handles, the handles are arranged on the two symmetrical sides of the sheath base body along a tearing line respectively, and the handles can rotate relative to the sheath base body when stressed. In the using process of the sheath base, medical staff can rotate the handle to the angle where the medical staff can conveniently carry out next operation (such as tearing of the sheath base) according to daily habits or the position where the medical staff is located in an operation, so that the operation is more labor-saving, and the flexibility is higher.

Description

Technical Field

[0001] The present disclosure relates to the technical field of medical devices, and in particular to a rotatable sheath seat and a catheter sheath. Background Art

[0002] The catheter sheath is an important auxiliary guide device for peripheral and intracardiac minimally invasive interventional surgery. It is used to establish a connection channel between human blood vessels and the outside world during interventional surgeries such as thrombectomy, percutaneous coronary intervention, and percutaneous interventional occlusion, thereby assisting the delivery tube to deliver diagnostic and therapeutic equipment to the lesion site. Successfully establishing a surgical access through the catheter sheath is a prerequisite for the success of the operation. In order to make the operation of the catheter sheath smoother and safer, there are various catheter sheaths with improved functions in the prior art.

[0003] For example, CN202222533802.1 discloses a tearable sheath with a locking structure, which has the advantage of preventing blood from splashing onto the handle during surgical catheterization, and has the advantage of not being accidentally torn during transportation or use. CN202311569847.7 discloses an anti-backflow tearable sheath, in which a sealing pad is provided inside the sheath seat, and a second incision is provided on the pad surface of the sealing pad adjacent to one side of the sheath, and the projections of the first incision and the second incision on the surface where the sealing pad is located are arranged at an angle, and the first incision and the second incision are connected only at the intersection, which has an anti-backflow effect. In addition, there are catheter sheaths with hemostatic valves, catheter sheaths that prevent the sheath seat from being accidentally torn, and the like.

[0004] The existing catheter sheath body including the aforementioned solution is composed of a sheath seat, a dilation tube and a sheath tube. The sheath seat is composed of two symmetrical parts with handles that are torn together. When the two handles of the sheath seat are held separately and force is applied in opposite directions, the sheath seat can be torn apart along the axial direction and withdrawn from the human body.

[0005] However, the sheath seat handle of the existing catheter sheath is fixedly connected to the sheath seat, so its direction is fixed. In actual operation (for example, when the sheath seat is to be torn), the position of the sheath seat handle cannot be adjusted according to the habits of medical staff or the position of medical staff during the operation, resulting in inconvenience in operation and lack of flexibility. Utility Model Content

[0006] Based on this, an object of the present disclosure is to improve the operational flexibility of the catheter sheath seat.

[0007] To achieve the above objectives, the present invention provides a rotatable sheath seat:

[0008] The utility model comprises a sheath seat body which can be symmetrically torn and a handle. The sheath seat body is provided with handles on two symmetrical sides along a tear line respectively, and the handles can rotate relative to the sheath seat body under force.

[0009] Preferably, the handle comprises a rotating member and a rotating shaft connected to the rotating member, the sheath seat body is provided with a rotating groove, and the rotating shaft is restricted to rotate in the rotating groove.

[0010] Preferably, the sheath seat body is provided with a rotating portion, the rotating portion is provided with an accommodating cavity for accommodating the rotating shaft, and the rotating groove is arranged in the accommodating cavity.

[0011] More preferably, the accommodating chamber is provided with the rotating groove which is recessed downward relative to the wall surface thereof;

[0012] The rotating shaft is provided with a rotating block protruding along the surface thereof, and the rotating block is limited to rotate in the rotating groove.

[0013] Preferably, the rotation slot allows the rotation block to rotate by 360°.

[0014] More preferably, the accommodating cavity is further provided with a limiting groove which is recessed downward relative to the wall surface thereof and is parallel to the rotating groove;

[0015] The rotating shaft is provided with a limit block protruding along the surface thereof, and the limit block is restricted to rotate in the limit groove, and the rotatable angle of the limit block provided by the limit groove is smaller than the rotatable angle of the rotating block provided by the rotating groove.

[0016] Preferably, the limiting groove allows the limiting block to rotate at an angle of 180°.

[0017] More preferably, the rotating member and the rotating shaft are integrally formed.

[0018] More preferably, the rotating member is at least partially hollow.

[0019] To achieve the above objectives, the present disclosure further provides a catheter sheath, which uses the rotatable sheath seat described in any one of the above items.

[0020] The technical solution claimed in the present disclosure has achieved the following beneficial effects:

[0021] During use of the sheath seat disclosed herein, medical personnel can rotate the handle to an angle that is more convenient for them to perform the next operation (such as tearing the sheath seat) according to their daily habits or their position during the operation, making the operation more labor-saving and more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are merely embodiments of the present disclosure, and a person of ordinary skill in the art can obtain other drawings based on the provided drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the handle.

[0024] Figure 2 It is a front view schematic diagram of the rotatable sheath seat.

[0025] Figure 3 It is a top view schematic diagram of the rotatable sheath seat.

[0026] Figure 4 It is a side view schematic diagram of the rotatable sheath seat.

[0027] Figure 5 Schematic diagram of the rotation axis.

[0028] Figure 6 A cross-sectional view of the rotating part Figure 1 .

[0029] Figure 7 A cross-sectional view of the rotating part Figure 2 .

[0030] Reference numerals:

[0031] 1-sheath seat body; 2-handle; 3-rotation groove; 4-rotation member; 5-rotation axis; 6-rotation part; 7-accommodation chamber; 8-rotation block; 9-limiting groove; 10-limiting block. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and beneficial effects of the embodiments of the present disclosure clearer, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0033] Example 1

[0034] This embodiment provides a rotatable sheath seat.

[0035] Reference Figures 1 to 7 The rotatable sheath seat in this embodiment includes a sheath seat body 1 that can be symmetrically torn and handles 2 arranged on both sides of the tear line of the sheath seat body 1, and the handles 2 can rotate relative to the sheath seat body 1 under force. Exemplarily, the sheath seat body 1 is provided with rotation grooves 3 on both sides symmetrically along the tear line, and one end of the handle 2 is restricted in the rotation groove 3 and can rotate in the rotation groove 3 under force.

[0036] In a preferred embodiment, the handle 2 includes a rotating member 4 for a person to hold and a rotating shaft 5 connected to the rotating member 4 , and the rotating shaft 5 is restricted to rotate in the rotating groove 3 .

[0037] In the exemplary structure, the sheath seat body 1 is provided with a rotating portion 6 , the rotating portion 6 is provided with an accommodating cavity 7 for accommodating a rotating shaft, and the rotating groove 3 is arranged in the accommodating cavity 7 .

[0038] Exemplarily, a rotating groove 3 is provided in the accommodating cavity 7 and is recessed downward relative to the wall surface thereof, and a rotating block 8 is provided on the rotating shaft 5 and is protruded along the surface thereof, and the rotating block 8 is limited to rotate in the rotating groove 3. The rotatable angle of the rotating groove 3 for the rotating block 8 is preferably set to 360°, and the rotating block 8 can preferably protrude around the circumference of the entire rotating shaft 5.

[0039] In a preferred solution, the rotating member 4 and the rotating shaft 5 are integrally formed.

[0040] In a more preferred solution, at least part of the rotating member 4 is hollowed out. The hollow structure makes the rotating member of the handle appear like a "pull ring", which is more convenient for medical staff to use.

[0041] During use of the sheath seat of this embodiment, medical staff can rotate the handle to an angle that is more convenient for them to perform the next operation (such as tearing the sheath seat) according to their daily habits or their position during the operation, making the operation more labor-saving and more flexible.

[0042] Example 2

[0043] Reference Figures 1 to 7 The rotatable sheath seat in this embodiment includes a sheath seat body 1 that can be symmetrically torn and handles 2 arranged on both sides of the tear line of the sheath seat body 1, and the handles 2 can rotate relative to the sheath seat body 1 under force. Exemplarily, the sheath seat body 1 is provided with rotation grooves 3 on both sides symmetrically along the tear line, and one end of the handle 2 is restricted in the rotation groove 3 and can rotate in the rotation groove 3 under force.

[0044] In a preferred embodiment, the handle 2 includes a rotating member 4 for a person to hold and a rotating shaft 5 connected to the rotating member 4 , and the rotating shaft 5 is restricted to rotate in the rotating groove 3 .

[0045] In the exemplary structure, the sheath seat body 1 is provided with a rotating portion 6 , the rotating portion 6 is provided with an accommodating cavity 7 for accommodating a rotating shaft, and the rotating groove 3 is arranged in the accommodating cavity 7 .

[0046] Exemplarily, a rotating groove 3 is provided in the accommodating cavity 7 and is recessed downward relative to the wall surface thereof, and a rotating block 8 is provided on the rotating shaft 5 and is protruded along the surface thereof, and the rotating block 8 is limited to rotate in the rotating groove 3. The rotatable angle of the rotating groove 3 for the rotating block 8 is preferably set to 360°, and the rotating block 8 can preferably protrude around the circumference of the entire rotating shaft 5.

[0047] More preferably, when the handle does not need to rotate 360°, the rotation angle of the handle can be limited. In an exemplary solution, a limiting groove 9 is further provided in the accommodating cavity 7, which is recessed downward relative to the wall surface and parallel to the rotating groove 3. The rotating shaft 5 is provided with a limiting block 10 protruding along its surface, and the limiting block 10 is limited to rotate in the limiting groove 9. The rotatable angle of the limiting groove 9 for the limiting block 10 is smaller than the rotatable angle of the rotating groove 3 for the rotating block 8. For example, the rotatable angle of the limiting groove 9 can be set to 180°, that is, it is set along half of the circumference of the accommodating cavity 7.

[0048] In a preferred solution, the rotating member 4 and the rotating shaft 5 are integrally formed.

[0049] In a more preferred embodiment, at least part of the rotating member 4 is hollowed out. The hollowed-out structure makes the rotating member of the handle appear as a "pull ring", which is more convenient for medical staff to use and apply force.

[0050] During use of the sheath seat of this embodiment, medical staff can rotate the handle to an angle that is more convenient for them to perform the next operation (such as tearing the sheath seat or further adjusting the orientation of the sheath seat) according to their daily habits or their position during the operation, making the operation more labor-saving and more flexible.

[0051] Example 3

[0052] This embodiment provides a catheter sheath, which uses the rotatable sheath seat in embodiment 1 or embodiment 2.

[0053] The embodiments and application examples described above are merely illustrative descriptions of the present disclosure and are not intended to limit the scope of the present disclosure. Without departing from the design spirit of the present disclosure, various modifications and improvements made to the technical solutions of the present disclosure by ordinary technicians in this field should all fall within the protection scope determined by the present disclosure.

Claims

1. A rotatable sheath seat, characterized in that: The utility model comprises a sheath seat body which can be symmetrically torn and a handle. The sheath seat body is provided with handles on two symmetrical sides along a tear line respectively, and the handles can rotate relative to the sheath seat body under force.

2. The rotatable sheath seat according to claim 1, characterized in that: The handle comprises a rotating member and a rotating shaft connected to the rotating member, the sheath seat body is provided with a rotating groove, and the rotating shaft is restricted to rotate in the rotating groove.

3. The rotatable sheath seat according to claim 2, characterized in that: The sheath seat body is provided with a rotating part, the rotating part is provided with a receiving cavity for receiving the rotating shaft, and the rotating groove is arranged in the receiving cavity.

4. The rotatable sheath seat according to claim 3, characterized in that: The accommodating cavity is provided with the rotating groove which is recessed downward relative to the wall surface thereof; The rotating shaft is provided with a rotating block protruding along the surface thereof, and the rotating block is limited to rotate in the rotating groove.

5. The rotatable sheath seat according to claim 4, characterized in that: The rotation angle of the rotating block provided by the rotating groove is 360°.

6. The rotatable sheath seat according to claim 4, characterized in that: The accommodating cavity is also provided with a limiting groove which is recessed downward relative to its wall surface and parallel to the rotating groove; The rotating shaft is provided with a limit block protruding along the surface thereof, and the limit block is restricted to rotate in the limit groove, and the rotatable angle of the limit block provided by the limit groove is smaller than the rotatable angle of the rotating block provided by the rotating groove.

7. The rotatable sheath seat according to claim 6, characterized in that: The limiting groove allows the rotating block to rotate at an angle of 180°.

8. The rotatable sheath seat according to claim 2, characterized in that: The rotating member and the rotating shaft are integrally formed.

9. The rotatable sheath seat according to claim 2, characterized in that: The rotating member is at least partially hollow.

10. A catheter sheath, characterized in that: The catheter sheath uses the rotatable sheath seat according to any one of claims 1 to 9.

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