Puncture outfit slider fixer and adjustable elastic retainer ring applying same

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a puncture outfit slider fixator and an adjustable elastic retainer ring using the same. The utility model provides a puncture outfit slider fixer, which aims at solving the problem that a puncture outfit device is easy to be extruded and damaged in a locking and fixing process due to the fact that a sliding fixing component arranged outside a puncture outfit in the prior art is made of hard plastic, and comprises a locking ring component and a connecting component connected with the locking ring component, the connecting assembly is used for being connected with a component needing to be locked. The elastic clamping sleeve is connected / clung to the inner wall of the locking ring assembly; and when the locking ring assembly contracts horizontally and radially, the elastic clamping sleeve is clung to and extrudes the outer wall of the puncture outfit sleeve. The problem is solved through the design that the clamping sleeve is made of an elastic material. The utility model further provides the scheme of the adjustable elastic check ring applying the fixator, and the scheme is applied to the application scene of a common balloon puncture outfit.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a trocar slide fixer and an adjustable elastic retaining ring using the fixer. Background Art

[0002] Trocars often have components that require height adjustment. Taking a balloon puncture device as an example, an inflatable balloon is generally inserted into the inner wall of the patient's abdominal cavity as the lower support surface, and a retaining ring is set to press against the outer wall of the patient's abdominal cavity as the upper support surface to form a stable "I" structure to fix the puncture device. Due to the different thicknesses of the patient's abdominal wall, the retaining ring is generally connected to a sliding fixing component for adjustment. Traditional sliding fixing components generally use a hard plastic ferrule to snap on the outer wall of the puncture device cannula. Because the balloon injection channel of many balloon puncture devices is generally on the outside of the puncture device cannula and is flexible, the locking process of the plastic ferrule on the puncture device often punctures the outer wall of the puncture device cannula, causing the balloon to leak. Even when used on a balloon-free puncture device, the hard material can easily squeeze through the outer wall of the puncture device cannula.

[0003] For example, a Chinese utility model patent discloses a balloon puncture device [application number: CN201520209091.X]. This utility model includes a puncture needle, a puncture cannula, and an outer sheath; one end of the puncture needle is provided with a curved end cap, the puncture needle is inserted into the puncture cannula, a first connecting tube is provided on the wall of the puncture cannula, the first connecting tube is connected to the puncture cannula, a connecting groove is formed on the wall of the puncture cannula, the puncture cannula is inserted into the outer sheath, and a connecting channel is formed between the connecting groove and the outer sheath; a second connecting tube is provided on the upper portion of the outer sheath, and an annular airbag is provided on the lower portion of the outer sheath, the second connecting tube is connected to the annular airbag through the connecting channel, and the outer sheath is also provided with a slidable retaining ring, and the retaining ring is also provided with a lock for locking the retaining ring to the outer sheath.

[0004] Although the utility model makes it easier for medical staff to use the balloon puncture device and reduces the problem of slipping through the above solution, the lock-related components are still made of hard materials and cannot solve the problem that the corresponding puncture device contact surface is easily squeezed when locked. Summary of the Invention

[0005] The purpose of the present utility model is to solve the above-mentioned problems, mainly to provide a trocar slide holder, and also to provide an adjustable elastic retaining ring solution using the holder.

[0006] The puncture device slide holder includes a locking ring assembly and a connecting assembly connected thereto, wherein the connecting assembly is used to connect the component to be locked; and further includes an elastic clamping sleeve connected to / closely attached to the inner wall of the locking ring assembly, and when the locking ring assembly contracts horizontally and radially, the elastic clamping sleeve tightly presses the outer wall of the puncture device sleeve.

[0007] Preferably, the locking ring assembly includes a hoop body, a movable base that limits the up and down movement of the hoop body and is slidably connected thereto, and a hoop body retracting structure. The inner wall of the hoop body contacts the elastic sleeve for squeezing the elastic sleeve inward to the outer wall of the puncture tube.

[0008] Preferably, the clamp ring retraction and extension structure adopts a locking wrench that is fixedly connected to the clamp ring and rotatably connected to the movable base and can be locked together with it. Rotating the locking wrench drives the clamp ring to retract and extend, thereby driving the elastic sleeve to approach / move away from / squeeze the outer wall of the puncture tube.

[0009] As another easily conceivable solution, the clamp ring retractable structure is a buckle structure with a buckle set on the movable base. The buckle is stretched to make the elastic sleeve approach / move away from / squeeze the outer wall of the puncture tube. When fixation is required, the buckle is fixed on the outside of the puncture device, such as on the movable base, by a buckle that cooperates with it.

[0010] Preferably, in order to facilitate adaptation to various puncture device models, the horizontal inner wall of the elastic ferrule can be in a variety of shapes, for example, it can be elliptical, which reduces the assembly contact surface and avoids squeezing the balloon-related structure during assembly. It can also completely fit the outer wall of the puncture device when locked. For example, it can also be developed into round, square, hexagonal, etc. shapes suitable for puncture devices of other shapes.

[0011] Preferably, as a combination solution, the clamp ring body and the bottom of the movable base form an annular step, and the elastic sleeve is accommodated on the annular step.

[0012] Specifically, the connecting assembly is fixedly connected to the upper / lower surface of the movable base and serves as a carrier for connecting other components that need to be slidably fixed.

[0013] Preferably, the elastic sleeve is made of silicone.

[0014] The utility model also includes an adjustable elastic retaining ring. The above-mentioned trocar slide fixer is adopted to achieve the adjustable fixing function of the elastic retaining ring by connecting the elastic retaining ring below the connecting assembly.

[0015] In order to facilitate the matching of the elastic retaining ring, the connecting component has a hard convex disc extending outward. The upper part of the elastic retaining ring is open and grooves for accommodating the hard convex disc are provided around it. The connecting component and the elastic retaining ring are nested and connected.

[0016] Compared with the existing technology, the advantages of this utility model are:

[0017] 1. The utility model uses an elastic material to make the protective cover contacting the outside of the trocar sleeve, thereby reducing the risk of the locking ring assembly squeezing the corresponding contact surface of the trocar when locking.

[0018] 2. The contact surface between the protective cover and the trocar of the present invention adopts an elliptical structure, which reduces the difficulty of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the composition of the adjustable elastic retaining ring;

[0020] Figure 2 is a schematic diagram of a trocar slide holder;

[0021] Figure 3 An exploded view of the trocar slide holder;

[0022] Figure 4 Schematic diagram of the structure of the trocar slide holder;

[0023] Figure 5 This is a schematic diagram of the application of an adjustable elastic retaining ring on a balloon puncture device;

[0024] In the figure: locking ring assembly 1, connecting assembly 2, elastic ferrule 3, annular step 4, elastic retaining ring 5, hoop body 11, movable base 12, hoop body retractable structure 13, hard convex disc 21, groove 51, puncture device sleeve c. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0026] The trocar slide holder of the present invention is as follows: Figure 1 、 3 As shown, it includes a locking ring assembly 1 and a connecting assembly 2 connected thereto, and the connecting assembly 2 is used to connect the parts to be locked; the inner wall of the locking ring assembly 1 and the elastic sleeve 3 are in a connected or close contact manner, and when the locking ring assembly 1 contracts horizontally and radially, the inner wall of the locking ring assembly 1 interacts with the elastic sleeve 3 so that the elastic sleeve 3 is tightly pressed against the outer wall of the puncture sleeve c.

[0027] Specifically, the locking ring assembly 1 includes a hoop body 11 , a movable base 12 that limits the up and down movement of the hoop body 11 and is slidably connected to the base 12 , and a hoop body retracting and extending structure 13 .

[0028] When using the present invention, the slide holder is moved to the desired position, and the hoop ring retracting structure 13 is operated to tighten the hoop ring 11 so that the elastic sleeve 3 is pressed against the outer wall of the puncture tube c, thereby locking the slide position of the holder.

[0029] Preferably, Figure 3 、 4As shown, the hoop ring body retracting and releasing structure 13 is a locking wrench 131 fixedly connected to the hoop ring body 11 and rotatably connected to the movable base 12 and can be combined and locked therewith.

[0030] It is easy to imagine that the hoop ring body retractable structure 13 can also be a buckle structure with a buckle provided on the movable base 12, which can tighten the hoop ring body 11 by pulling and fixing the state by means of a bayonet.

[0031] Preferably, in order to facilitate the adaptation of the puncture device model, the horizontal inner wall of the elastic ferrule 3 is a semi-open structure of any one of circular, oval, square or hexagonal shapes. Specifically, the horizontal inner wall of the elastic ferrule 3 can be in a variety of shapes, for example, it can be oval, which reduces the assembly contact surface and avoids squeezing the balloon-related structure during assembly. It can also completely fit the outer wall of the puncture device when locked. For example, it can also be developed into a circular, square, hexagonal, etc. suitable for puncture devices of other shapes. That is, it is easy to imagine that in the future, corresponding circular, square, and hexagonal semi-open elastic ferrules 3 can be developed according to the different cross-sections of the outer wall of the puncture device to achieve a better fitting effect.

[0032] As a preferred mode for accommodating the elastic sleeve 3, as Figure 4 As shown, the hoop body 11 and the bottom of the movable base 12 form an annular step 4, and the elastic sleeve 3 is accommodated on the annular step 4.

[0033] Preferably, the connecting assembly 2 is fixedly connected to the upper / lower surface of the movable base 12 to reduce the circumferential volume.

[0034] Preferably, the elastic sleeve 3 is made of silicone.

[0035] The working principle of this embodiment is as follows: the elastic ferrule 3 is inserted into the semi-enclosed structure formed by the annular step 4 and the upper end of the movable base 12, and the trocar is inserted and connected to the outer wall thereof in a slidable manner. During assembly and operation, the slide holder is moved to the desired position, and the clamp ring body retraction structure 13 is operated to tighten the clamp ring body 11 so that the elastic ferrule 3 is pressed against the outer wall of the trocar sleeve c, thereby locking the slide holder in the desired position.

[0036] Further, such as Figure 1 、 5 As shown, the present invention also includes an adjustable elastic retaining ring using the above-mentioned puncture device slide holder, the elastic retaining ring 5 is connected to the bottom of the connecting component 2, and the elastic retaining ring 5 is fixed in the sliding position of the puncture device outer wall by the puncture device slide holder.

[0037] Preferably, the connecting component 2 has a hard convex disc 21 extending outward, the elastic retaining ring 5 has an upper opening and is provided with grooves 51 around it to accommodate the hard convex disc 21, and the connecting component 2 and the elastic retaining ring 5 are nested and connected.

[0038] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0039] Although the terms "locking ring assembly 1," "connecting assembly 2," "elastic ferrule 3," "annular step 4," "retaining ring 5," "hoop body 11," "movable base 12," "hoop body retractable structure 13," "hard convex disc 21," "groove 51," and "trocar sleeve c" are frequently used herein, the use of other terms is not excluded. These terms are used solely to more conveniently describe and explain the essence of the present invention. Any interpretation of them as additional limitations would be contrary to the spirit of the present invention.

Claims

1. A trocar slide holder, comprising a locking ring assembly (1) and a connecting assembly (2) connected thereto, wherein the connecting assembly (2) is used to connect a component to be locked; characterized in that: It also includes an elastic sleeve (3) connected to / closely attached to the inner wall of the locking ring assembly (1). When the locking ring assembly (1) contracts horizontally and radially, the elastic sleeve (3) tightly presses the outer wall of the puncture device sleeve (c).

2. The trocar slider holder according to claim 1, wherein: The locking ring assembly (1) comprises a hoop body (11), a movable base (12) that restricts the upward and downward movement of the hoop body (11) and is slidably connected thereto, and a hoop body retractable structure (13); the inner wall of the hoop body (11) is in contact with the elastic sleeve (3).

3. The trocar slider holder according to claim 2, wherein: The hoop body retractable structure (13) is a locking wrench (131) that is fixedly connected to the hoop body (11) and rotatably connected to the movable base (12) and can be locked in combination with the movable base.

4. The trocar slider holder according to claim 2, wherein: The hoop body retractable structure (13) is a buckle structure with a buckle provided on the movable base (12).

5. The trocar slider holder according to claim 1, wherein: The horizontal inner wall of the elastic sleeve (3) is in the form of any one of a circular, elliptical, square or hexagonal semi-open structure.

6. The trocar slider holder according to claim 2, wherein: The bottom of the hoop body (11) and the movable base (12) form an annular step (4), and the elastic sleeve (3) is accommodated on the annular step (4).

7. The trocar slider holder according to claim 2, wherein: The connecting assembly (2) is fixedly connected to the upper / lower surface of the movable base (12).

8. The trocar slider holder according to claim 3, wherein: The elastic sleeve (3) is made of silica gel.

9. An adjustable elastic retaining ring, using the trocar slider holder according to any one of claims 1 to 8, characterized in that: It also includes an elastic retaining ring (5), which is connected below the connecting assembly (2).

10. The adjustable circlip according to claim 9, characterized in that: The connecting assembly (2) has a hard convex disc (21) extending outward, the elastic retaining ring (5) has an upper opening and is provided with grooves (51) around it for accommodating the hard convex disc (21), and the connecting assembly (2) and the elastic retaining ring (5) are nested and connected.

Images