Tearable catheter sheath with foldable handle

Abstract

The utility model relates to the technical field of minimally invasive interventional operations, and discloses a handle folding type tearable catheter sheath which comprises a sheath base, second handles are fixedly connected to the upper side and the lower side of the outer wall of the sheath base respectively, and first handles penetrate through and are rotationally connected to the ends, away from the sheath base, of the second handles respectively. The middle of the front side of the sheath base penetrates through and is fixedly connected with a sheath tube, the sheath tube penetrates through and extends to the other side of the sheath base, the rear side of the sheath base is fixedly connected with a clamping groove, and the middle of the rear side of the base body is fixedly connected with a base top cap. According to the handle folding type tearable catheter sheath, the base top cap, the base body, the clamping groove, the first handle, the second handle, the sheath base and the sheath tube are matched with one another, the sheath base can be opened with small force, then the sheath tube is torn, and the situation that a doctor is blocked when tearing the catheter sheath due to the fact that the handle is too short or inconvenient in shape is avoided; doctors can conveniently take out the sheathing canal.

Description

Technical Field

[0001] The utility model relates to the technical field of minimally invasive interventional surgery, in particular to a tearable catheter sheath with a foldable handle. Background Art

[0002] In the rapidly developing medical industry, minimally invasive interventional surgery has become the first choice of doctors. Interventional treatment is to introduce puncture needles, catheters, guide wires and other instruments into the body's blood vessels through percutaneous puncture under the guidance of medical imaging equipment to achieve the surgical purpose. In interventional surgery, the tearable catheter sheath is a commonly used medical device that is used to connect the human blood vessels with the external environment, making it convenient for doctors to operate instruments in and out of the blood vessels, while reducing blood leakage and scratches on the blood vessels. The tearable catheter sheath can be peeled off without removing the instrument during the operation, ensuring the smooth progress of the operation.

[0003] The amount of force and convenience used by the doctor during the peeling process of the tearable catheter sheath are crucial. Under the existing technology, the handle of a general catheter sheath is too short or has an inconvenient shape, which will cause obstruction when the doctor tears the catheter sheath, causing the sheath to deform or be difficult to tear when it is torn, which can easily cause unnecessary consequences.

[0004] In view of the above problems, a tearable catheter sheath with a foldable handle is proposed. Utility Model Content

[0005] The utility model aims to provide a tearable catheter sheath with a foldable handle, which solves the problem in the background art that the sheath is deformed or difficult to tear when being torn.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tearable catheter sheath with a foldable handle, comprising a sheath seat, wherein the upper and lower sides of the outer wall of the sheath seat are fixedly connected to a second handle, the end of the second handle away from the sheath seat is penetrated by and rotatably connected to the first handle, a sheath tube is penetrated by and fixedly connected to the middle of the front side of the sheath seat, and the sheath tube is penetrated by and extends to the other side of the sheath seat, and a card slot is fixedly connected to the rear side of the sheath seat.

[0007] By adopting the above technical solution, the second handle is connected via the first handle, and the card slot is connected via the sheath seat.

[0008] As a further description of the above technical solution: the rear side of the card slot is interference-connected with a seat body.

[0009] By adopting the above technical solution, the seat body is connected through the card slot.

[0010] As a further description of the above technical solution: a seat top cap is fixedly connected to the middle portion of the rear side of the seat body.

[0011] By adopting the above technical solution, the seat top cap is connected through the seat body.

[0012] As a further description of the above technical solution: two sealing rings are arranged inside the seat body, and the two sealing rings are interference connected.

[0013] By adopting the above technical solution, the sealing ring can prevent blood from leaking out.

[0014] As a further description of the above technical solution: an expansion tube is arranged inside the sheath tube, and the rear part of the expansion tube passes through the sealing ring.

[0015] By adopting the above technical solution, the sheath tube is expanded through the expansion tube.

[0016] As a further description of the above technical solution: the rear end of the expansion tube is fixedly connected with an expander seat.

[0017] By adopting the above technical solution, the expansion tube is driven to move through the expander seat.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] The utility model provides a tearable catheter sheath with a foldable handle. Through the mutual cooperation among a seat top cap, a seat body, a card slot, a first handle, a second handle, a sheath seat and a sheath tube, a relatively small force can be used to pry open the sheath seat and then tear open the sheath tube, thereby preventing doctors from being blocked when tearing open the catheter sheath due to a handle that is too short or has an inconvenient shape, and facilitating doctors to remove the sheath tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the folded state of the utility model;

[0021] Figure 2 A schematic diagram of the utility model in an unfolded state;

[0022] Figure 3 It is a schematic diagram of the sealing ring of the utility model.

[0023] In the figure: 1. dilator seat; 2. seat top cap; 3. seat body; 4. slot; 5. first handle; 6. second handle; 7. sheath seat; 8. sheath tube; 9. dilator tube; 10. sealing ring. DETAILED DESCRIPTION

[0024] 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 in 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.

[0025] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0026] Combination Figure 1-Figure 3 The utility model discloses a handle-foldable tearable catheter sheath, comprising a sheath seat 7, and a sheath tube 8 passes through and extends to the other side of the sheath seat 7, a card slot 4 is fixedly connected to the rear side of the sheath seat 7, a seat body 3 is interference-connected to the rear side of the card slot 4, a seat top cap 2 is fixedly connected to the middle part of the rear side of the seat body 3, two sealing rings 10 are arranged inside the seat body 3, and the two sealing rings 10 are interference-connected, an expansion tube 9 is arranged inside the sheath tube 8, and the rear part of the expansion tube 9 passes through the sealing ring 10, and the rear end of the expansion tube 9 is fixedly connected to the expander seat 1.

[0027] The sealing ring 10 is used to prevent blood extravasation during surgery. The card slot 4 and the seat body 3 are connected by interference fit to avoid blood extravasation during surgery. The expansion tube 9 can provide a certain rigidity when the sheath tube 8 is inserted, so that the sheath tube 8 can smoothly enter the human blood vessel.

[0028] Combination Figure 1 and Figure 2 The second handles 6 are fixedly connected to the upper and lower sides of the outer wall of the sheath seat 7, and the end of the second handle 6 away from the sheath seat 7 penetrates and is rotatably connected to the first handle 5, and the sheath tube 8 penetrates and is fixedly connected to the middle of the front side of the sheath seat 7.

[0029] The sheath 8 is tearable, the sheath seat 7 adopts a special structural design, the sheath 8 is made of special materials, the sheath 8 can be torn open when subjected to a certain force, and the end of the sheath 8 is coated with a hydrophilic coating. The function of the hydrophilic coating is to reduce the resistance to the insertion of the sheath 8 during the operation, so that the sheath 8 can smoothly enter the human blood vessel. The first handle 5 is closed when it is not opened, which saves more storage space. The handle is in an open state during use. The length of the handle after opening is doubled, which greatly saves the strength of the hand to pry it open during the operation, making the operation convenient and labor-saving.

[0030] Working principle: When it is necessary to use the tearable catheter sheath, first pick up the dilator seat 1 and insert the dilator tube 9 into the sheath tube 8 from the rear opening of the seat top cap 2, then insert the sheath tube 8 together with the dilator tube 9 into the blood vessel, then pull out the dilator seat 1 and the dilator tube 9, and then insert the catheter into the sheath tube 8, then unfold the first handles 5 on both sides, then pry open the sheath seat 7 and tear open the sheath tube 8 to complete the placement of the catheter.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tearable catheter sheath with a foldable handle, comprising a sheath seat (7), characterized in that: The upper and lower sides of the outer wall of the sheath seat (7) are fixedly connected to the second handle (6), and the end of the second handle (6) away from the sheath seat (7) is penetrated and rotatably connected to the first handle (5). The middle part of the front side of the sheath seat (7) is penetrated and fixedly connected to the sheath tube (8), and the sheath tube (8) is penetrated and extended to the other side of the sheath seat (7). The rear side of the sheath seat (7) is fixedly connected to the card slot (4).

2. A tearable catheter sheath with a foldable handle according to claim 1, characterized in that: The rear side of the clamping slot (4) is interference-connected with the seat body (3).

3. A tearable catheter sheath with a foldable handle according to claim 2, characterized in that: A seat top cap (2) is fixedly connected to the middle portion of the rear side of the seat body (3).

4. A tearable catheter sheath with a foldable handle according to claim 2, characterized in that: Two sealing rings (10) are arranged inside the seat body (3), and the two sealing rings (10) are interference-connected with each other.

5. The tearable catheter sheath with a foldable handle according to claim 1, characterized in that: An expansion tube (9) is arranged inside the sheath tube (8), and the rear portion of the expansion tube (9) passes through a sealing ring (10).

6. A tearable catheter sheath with a foldable handle according to claim 5, characterized in that: The rear end of the expansion tube (9) is fixedly connected to an expander seat (1).

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