Uterine cavity biological membrane conveying device

Abstract

The utility model relates to a uterine cavity biological membrane conveying device. The uterine cavity biological membrane conveying device comprises a storage tube, a loading sleeve and a push rod, wherein the loading sleeve is arranged in the storage tube in a penetrating mode, and the push rod is arranged in the loading sleeve. The far end of the loading sleeve is connected with a V-shaped elastic film clamping assembly, and at least part of the V-shaped elastic film clamping assembly is contained in the containing pipe. A membrane clamping elastic bayonet is formed in the top end of the V-shaped elastic membrane clamping assembly and is used for clamping a biological membrane; the shape of the push rod is matched with the inner cavity of the loading sleeve and the inner cavity of the V-shaped elastic membrane clamping assembly, and the push rod is used for pushing away the biological membrane clamped in the membrane clamping elastic bayonet. The device is easy to assemble and convenient to use by an operator.

Description

Technical Field

[0001] The utility model relates to the technical field of medical biological membranes, and particularly relates to a uterine cavity biological membrane delivery device. Background Art

[0002] Endometrial problems are common diseases in obstetrics and gynecology, including intrauterine adhesions, endometriosis, etc. The existing treatment methods for preventing re-adhesion of the uterine cavity and poor repair of the endometrium are to spread and cover the entire uterine cavity with a uterine repair membrane or a repair membrane system after hysteroscopic surgery, so as to achieve the purpose of repair treatment.

[0003] At present, clinical intrauterine placement devices are mostly used for placing intrauterine devices. The intrauterine device is a long-acting and reversible contraceptive device. In related technologies, disposable products are often used, including internal and external tube clamping type and hook pulling type, which have good effects on placing metal spring coil intrauterine devices. For another example, there are relatively high-end products that use a pulling end silk thread to make the product enter the catheter, and the catheter and the inner push rod cooperate to push the product into the uterine cavity. These placement methods have good delivery effects on specific products, but if the product to be delivered is a relatively soft membrane material or an elastic uterine cavity stent, the above placement methods cannot fully spread the product in the uterine cavity.

[0004] Therefore, clinically, there is a lack of an ideal uterine cavity biological membrane or uterine cavity biological membrane system delivery device that can pre-load the product, realize the complete unfolding of the biological membrane or biological membrane system after placement in the uterine cavity, and at the same time, for the pre-loading and delivery processes of biological membranes or biological membrane systems of different specifications, the delivery device can achieve the sharing of multiple specifications of products, which is convenient for clinical operation. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a uterine cavity biological membrane delivery device, which solves the problem that the uterine cavity biological membrane in the prior art cannot fully unfold by itself in the uterine cavity, and with the help of this uterine cavity biological membrane delivery device, the pre-loading of the uterine cavity biological membrane and the unfolding operation based on the uterine cavity are realized synchronously.

[0006] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0007] The utility model provides a uterine cavity biological membrane delivery device, including: a receiving tube, a loading sleeve disposed through the receiving tube, and a push rod disposed in the loading sleeve;

[0008] The distal end of the loading sleeve is connected with a V-shaped elastic membrane clamping assembly, and at least part of the V-shaped elastic membrane clamping assembly is accommodated in the receiving tube; a clamping membrane elastic bayonet is arranged at the top of the V-shaped elastic membrane clamping assembly, and the clamping membrane elastic bayonet is used for clamping a biological membrane; the outer shape of the push rod matches the inner cavity of the loading sleeve and the inner cavity of the V-shaped elastic membrane clamping assembly, and the push rod is used for pushing the biological membrane clamped in the clamping membrane elastic bayonet away.

[0009] Furthermore, an annular protrusion is arranged on the inner wall of the receiving tube, and the annular protrusion is used for limiting and fixing the loading sleeve.

[0010] Furthermore, the proximal end port of the receiving tube contracts inwards to abut against the outer wall of the loading sleeve to form a contraction end; the distal end of the receiving tube is an open end.

[0011] Furthermore, a scale bar is arranged at the proximal end of the loading sleeve, and the contraction end cooperates with the scale bar to indicate the position of the receiving tube.

[0012] Furthermore, the V-shaped elastic membrane clamping assembly includes a connecting part and a V-shaped elastic clamping part integrally formed with the connecting part, and the connecting part is in threaded connection with the distal end of the loading sleeve.

[0013] Furthermore, the V-shaped elastic clamping part abuts against the open end of the receiving tube, and the clamping angle size of the V-shaped elastic clamping part is adjusted by sliding the loading sleeve.

[0014] Furthermore, the loading sleeve is axially divided into a left loading branch pipe and a right loading branch pipe, and a spring is arranged inside the middle part of the loading sleeve, and spring limiters are arranged on both sides of the spring. The spring and the spring limiters cooperate to limit the stroke of the push rod.

[0015] Furthermore, the spring limiter includes an upper half spring limiter and a lower half spring limiter, and a limit protrusion / limit groove is arranged on the upper half spring limiter, which cooperates with the limit groove / limit protrusion arranged on the lower half spring limiter to cover the left loading branch pipe and the right loading branch pipe.

[0016] Furthermore, a threaded limiter is arranged inside the proximal end of the loading sleeve, and the threaded limiter is in threaded connection with a tightening nut.

[0017] Furthermore, the proximal end of the push rod is connected with a handle, and two push rod limiters are arranged in the middle of the push rod, and the two push rod limiters are arranged on both sides of the spring limiter close to the handle end.

[0018] Due to the application of the above technical solutions, the utility model has the following advantages compared with the prior art:

[0019] A uterine cavity biofilm delivery device of the present utility model is provided with a V-shaped elastic film clamping assembly for clamping the biofilm at the distal end of the loading sleeve. When the loading sleeve is pushed to move, the V-shaped elastic film clamping assembly can be at least partially contracted into the receiving tube or fully deployed outside the receiving tube. During the actual use of the device, the relatively soft biofilm will also contract or expand correspondingly during the contraction and expansion process of the V-shaped elastic film clamping assembly. Among them, when the V-shaped elastic film clamping assembly is at least partially contracted in the receiving tube, the biofilm can be folded and contracted, and then the biofilm can be transported into the uterine cavity. After reaching the working position, the V-shaped elastic film clamping assembly is then deployed outside the receiving tube. At this time, the biofilm is fully deployed, and the push rod is pushed to release the biofilm, completing the implantation of the biofilm. The entire process only requires the operator to control the push rod to achieve the precise release of the biofilm in the uterine cavity. The assembly is simple and convenient for the operator to use.

[0020] Furthermore, since a scale bar is provided at the proximal end of the loading sleeve, when the receiving tube moves to different scale positions, combined with the fixed diameter at the top of the loading sleeve, the adjustment of the opening angle of the V-shaped elastic film clamping assembly can be realized, so as to adapt to the pre-loading of biofilms of different specifications and the spreading in the uterine cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Some specific embodiments of the present utility model will be described in detail hereinafter with reference to the accompanying drawings in an exemplary but non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0022] Figure 1 is a schematic structural diagram of a uterine cavity biofilm delivery device provided by the present utility model;

[0023] Figure 2 is a schematic internal structure diagram of the receiving tube provided by the present utility model;

[0024] Figure 3 is a schematic structural diagram of the loading sleeve provided by the present utility model;

[0025] Figure 4 is a schematic internal structure diagram of the loading sleeve provided by the present utility model;

[0026] Figure 5 is an enlarged view of part A of the loading sleeve provided by the present utility model;

[0027] Figure 6 is a schematic outer wall structure diagram of the loading sleeve provided by the present utility model;

[0028] Figure 7 is a schematic structural diagram of the push rod provided by the present utility model;

[0029] Figure 8 Schematic diagram of the movement route of the push rod provided by the present utility model;

[0030] Among them, the reference numerals are explained as follows:

[0031] 1. Storage tube; 11. Annular protrusion; 2. Loading sleeve; 21. Scale bar; 22. Spring; 23. Spring limiting member; 231. Limiting protrusion; 232. Limiting groove; 24. Thread limiting member; 25. Tightening nut; 3. Push rod; 31. Handle; 32. Push rod limiting member; 4. V-shaped elastic clamping film assembly; 41. Connecting portion; 42. V-shaped elastic clamping portion. Specific embodiments

[0032] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] It should be noted that the proximal end mentioned below refers to the end close to the operator during the operation of the operator, and the distal end refers to the end far from the operator during the operation of the operator.

[0034] Refer to Figure 1 , this kind of intrauterine biofilm delivery device includes a storage tube 1, a loading sleeve 2 inserted into the storage tube 1, and a push rod 3 is arranged in the loading sleeve 2. The distal end of the loading sleeve 2 is connected with a V-shaped elastic clamping film assembly 4. Since the aforementioned V-shaped elastic clamping film assembly 4 has elasticity, the V-shaped elastic clamping film assembly 4 can at least partially be accommodated in the aforementioned storage tube 1. The diameter of the storage tube 1 is slightly larger than the diameter of the loading sleeve 2.

[0035] One end of the aforementioned storage tube 1 is an open end that fits against the outer wall of the V-shaped elastic clamping film assembly 4, and the tube diameter of the other end gradually contracts inward to abut against the outer wall of the aforementioned loading sleeve 2 to form a contraction end. Thus, a closed space is provided for the aforementioned partial loading sleeve 2. The open end of the storage tube 1 also ensures that the V-shaped elastic clamping film assembly 4 can slide arbitrarily at its open end, thereby realizing the adjustment of the opening angle of the V-shaped elastic clamping film assembly 4, and further adapting to the pre-loading and intrauterine spreading of products of different specifications and sizes.

[0036] A scale bar 21 is provided at the proximal end of the aforementioned loading sleeve 2, which cooperates with the contraction end of the aforementioned storage tube 1 to indicate the moving position and moving distance of the storage tube 1. At the same time, in order for the scale bar 21 to quickly adapt to biofilms of different specifications and sizes, in the present utility model, feature marking lines such as different colors or long marking lines are provided at the aforementioned scale bar 21. Since the marking positions are different, it can guide the doctor to push the storage tube 1 to the correct position, making the end of the storage tube 1 correspond to the aforementioned feature marking lines, thus avoiding the complex operation for the doctor to distinguish the product size.

[0037] Refer to Figure 2 , a number of annular protrusions 11 are provided on the inner wall of the aforementioned storage tube 1. The annular protrusions 11 are used to provide a damping effect on the loading sleeve 2, so that the loading sleeve 2 can slide along the inside of the storage tube 1 only under the action of an external force. The aforementioned annular protrusions 11 can be provided on the entire inner wall of the storage tube 1, or can be arranged on a part of the inner wall of the storage tube 1. In addition, the above-mentioned annular protrusions 11 can be set as dot-like protrusions or can be set as annular damping rings, as long as they can limit and fix the aforementioned loading sleeve 2 to prevent it from sliding randomly within the storage tube 1.

[0038] In an embodiment of the present utility model, annular protrusions 11 are only provided on the inner wall of the proximal end of the storage tube 1, and a storage chamber capable of accommodating the aforementioned V-shaped elastic film clamping assembly 4 and the biofilm is formed at the distal end of the storage tube 1, thereby enabling the V-shaped elastic film clamping assembly 4 and the biofilm to be smoothly pushed out of the storage tube 1.

[0039] Refer to Figure 3 , the aforementioned V-shaped elastic film clamping assembly 4 includes a connecting portion 41 and a V-shaped elastic clamping portion 42 integrally formed with the connecting portion 41. The connecting portion 41 is threadedly connected to the distal end of the aforementioned loading sleeve 2, and a film clamping elastic bayonet (not shown in the figure) is provided at the top of the V-shaped elastic clamping portion 42. Moreover, the above-mentioned V-shaped elastic film clamping assembly 4 also has a lumen capable of accommodating the top end of the aforementioned push rod 3 to pass through. Of course, the connection manner between the above-mentioned connecting portion and the aforementioned loading sleeve 2 is not limited to threaded connection, and can also be integrally formed, or other connection methods can be adopted to connect the V-shaped elastic film clamping assembly 4 and the loading sleeve 2. The film clamping elastic bayonet provided at the top of the V-shaped elastic clamping portion is used to clamp a corner of the intrauterine biofilm to prevent the biofilm from falling off during the process of pushing the push rod 3 to move. And, this film clamping elastic bayonet cooperates with the aforementioned scale bar 21 to avoid the distance between the two film clamping elastic bayonets being too large to cause the biofilm to tear, or too small to cause the biofilm to spread incompletely.

[0040] Refer to Figure 4In the present invention, the corresponding loading sleeve 2 is divided into a left loading branch and a right loading branch along the axial direction, and a spring 22 is arranged inside the middle of the loading sleeve 2 to control the extension and retraction of the push rod 3, and spring limiters 23 are arranged on both sides of the spring 22. The length of the spring 22 can be adjusted according to actual needs. The purpose of arranging the spring 22 and the spring limiter 23 in the loading sleeve 2 is to limit the travel of the push rod 3 placed in the loading sleeve 2, so as to ensure that the soft tissue in the patient's body will not be damaged during the process of pushing the push rod 3.

[0041] Also, see Figure 5 The aforementioned spring stopper 23 is also correspondingly divided into an upper spring stopper and a lower spring stopper, and a limiting protrusion 231 / limiting groove 232 is provided on the upper spring stopper, which cooperates with the limiting groove 232 / limiting protrusion 231 provided on the lower spring stopper to cover the left loading branch pipe with the right loading branch pipe. Of course, in order to make the left loading branch pipe and the right loading branch pipe cover tightly, it is not limited to the above-mentioned covering method, as long as the left loading branch pipe and the right loading branch pipe can be assembled and covered together.

[0042] A first arc groove is formed at the lower end of the upper spring limiter, and a second arc groove is formed at the upper end of the lower spring limiter. The first arc groove and the second arc groove cooperate to form a hole for accommodating the passage of the push rod 3, thereby limiting the push rod 3 through the spring 22 and the spring limiter 23, and also preventing the push rod 3 from shaking in the loading sleeve 2.

[0043] In addition, see Figure 6 A threaded stopper 24 is also provided inside the proximal end of the loading sleeve 2. The threaded stopper 24 is threadedly connected to a tightening nut 25 for limiting the aforementioned push rod.

[0044] In this utility model, refer to Figure 7 The shape of the push rod 3 matches the inner cavity of the loading sleeve 2 and the inner cavity of the V-shaped elastic clamping membrane assembly 4, and a handle 31 is connected to the proximal end of the push rod 3. There is a certain movement space between the push rod 3 and the inner cavity of the V-shaped elastic clamping membrane assembly 4, thereby pushing the uterine cavity biofilm clamped on the V-shaped elastic clamping part 42 out of the V-shaped elastic clamping membrane assembly 4. In addition, the top end of the push rod 3 is set to be round, which is convenient for pushing out the uterine cavity biofilm.

[0045] For specific operations, see Figure 8, take the pre-loaded biofilm product, push up the storage tube 1, that is, move the storage tube 1 in the setting direction of the V-shaped elastic film clamping assembly 4, and then completely incorporate the V-shaped elastic film clamping assembly 4 into the loading sleeve 2. Then, insert the device into the uterus through the uterine cavity. Subsequently, pull down the storage tube 1 so that the contraction end of the storage tube 1 reaches the characteristic marking line of the scale bar 21. At this time, the V-shaped elastic film clamping assembly 4 in the uterine cavity is released to the original pre-loaded position, and the biofilm is completely spread. Then, push the push rod 3 to move it from position a to position b. Subsequently, the top end of the push rod 3 ejects the biofilm from the film clamping elastic bayonet of the V-shaped elastic film clamping assembly 4, realizing the precise release of the biofilm.

[0046] Two push rod limit members 32 are provided in the middle of the aforementioned push rod 3, and the two push rod limit members 32 are arranged on both sides of the spring limit member 23 near one end of the aforementioned handle 31 to play a damping role, ensuring that the push rod 3 does not fall off in the loading sleeve 2. When pushing the push rod 3 towards the film feeding position through the handle 31, the spring 22 moves in the film feeding direction under the action of the push rod 3, and then ejects the intrauterine biofilm clamped on the aforementioned film clamping elastic bayonet from the film clamping assembly. When the intrauterine biofilm is ejected, release the handle 31. At this time, the spring 22 immediately resets in the opposite direction of the film feeding direction. When it abuts against the push rod limit member 32 near one end of the push rod 3, the reset action is completed.

[0047] In addition, the materials of the aforementioned storage tube 1, loading sleeve 2, push rod 3 and V-shaped elastic film clamping assembly 4 are all selected as recoverable elastic materials, which have a certain hardness and toughness, are convenient to be placed in the uterine cavity, and avoid harm to the operator.

[0048] In summary, for the intrauterine biofilm delivery device in the present utility model, through the V-shaped elastic film clamping assembly, the complete spreading of the product in the uterine cavity can be realized, achieving the purpose of precise release; by moving the storage tube to different scales and combining with the fixed diameter at the top of the loading sleeve, the adjustment of the opening angle of the elastic V-shaped elastic film clamping assembly can be realized, thereby realizing the control of the opening size of the V-shaped elastic film clamping assembly, adapting to the pre-loading of products of different specifications and the spreading of the product in the uterine cavity.

[0049] The above embodiments are only used to illustrate the technical concept and characteristics of the present utility model, and their purpose is to enable those familiar with this technology to understand the content of the present utility model and implement it accordingly. It should not be used to limit the protection scope of the present utility model. Any equivalent changes or modifications made according to the spirit of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A uterine cavity biofilm delivery device, characterized in that, Comprising: A storage tube (1), a loading sleeve (2) disposed within the storage tube (1), and a push rod (3) disposed within the loading sleeve (2); The distal end of the loading sleeve (2) is connected to a V-shaped elastic membrane clamping assembly (4), and at least a portion of the V-shaped elastic membrane clamping assembly (4) is received within the storage tube (1); The top end of the V-shaped elastic membrane clamping assembly (4) is provided with a membrane clamping elastic bayonet for clamping a biological membrane; The outer shape of the push rod (3) matches the inner cavity of the loading sleeve (2) and the inner cavity of the V-shaped elastic membrane clamping assembly (4), and the push rod (3) is used to push away the biological membrane clamped in the membrane clamping elastic bayonet.

2. The intrauterine biofilm delivery device according to claim 1, characterized in that, A circular protrusion (11) is provided on the inner wall of the storage tube (1) for limiting and fixing the loading sleeve (2).

3. The intrauterine biofilm delivery device according to claim 1, characterized in that, The proximal end port of the storage tube (1) contracts inwardly to abut against the outer wall of the loading sleeve (2) to form a contraction end; the distal end of the storage tube (1) is an open end.

4. The intrauterine biofilm delivery device according to claim 3, characterized in that, A scale bar (21) is provided at the proximal end of the loading sleeve (2), and the contraction end cooperates with the scale bar (21) to indicate the position of the storage tube (1).

5. The intrauterine biofilm delivery device according to claim 1, characterized in that, The V-shaped elastic membrane clamping assembly (4) includes a connecting portion (41) and a V-shaped elastic clamping portion (42) integrally formed with the connecting portion (41), and the connecting portion (41) is threadedly connected to the distal end of the loading sleeve (2).

6. The intrauterine biofilm delivery device according to claim 5, wherein, The V-shaped elastic clamping portion (42) abuts against the open end of the storage tube (1), and the clamping angle of the V-shaped elastic clamping portion (42) is adjusted by sliding the loading sleeve (2).

7. The intrauterine biofilm delivery device according to claim 1, wherein The loading sleeve (2) is axially divided into a left loading branch pipe and a right loading branch pipe, and a spring (22) is disposed inside the middle of the loading sleeve (2), and spring limit members (23) are provided on both sides of the spring (22), and the spring (22) and the spring limit members (23) cooperate to limit the stroke of the push rod (3).

8. The intrauterine biofilm delivery device according to claim 7, wherein The spring limit member (23) includes an upper half spring limit member and a lower half spring limit member, and a limit protrusion (231) / limit groove (232) is provided on the upper half spring limit member, which cooperates with the limit groove (232) / limit protrusion (231) provided on the lower half spring limit member to cover the left loading branch pipe and the right loading branch pipe.

9. The intrauterine biofilm delivery device according to claim 8, characterized in that, A threaded limit member (24) is provided inside the proximal end of the loading sleeve (2), and the threaded limit member (24) is threadedly connected to a tightening nut (25).

10. The intrauterine biofilm delivery device according to claim 1, characterized in that, The proximal end of the push rod (3) is connected to a handle (31), and two push rod limit members (32) are provided in the middle of the push rod (3), and the two push rod limit members (32) are disposed on both sides of the spring limit member (23) near the handle (31).

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