Cervical dilation rod

Abstract

The utility model discloses a cervical dilation rod which comprises a rod body, a water injection pipe and a water injection connector assembly. The rod body is made of a water-swellable material and comprises a handheld part and an expansion part; the water outlet end of the water injection pipe is fixedly connected into the rod body, and the water inlet end of the water injection pipe is fixedly connected into the water injection connector assembly. The water injection connector assembly comprises a first connector, a second connector and a fastener. A mounting groove is formed in the first connector, one end of the second connector extends into the mounting groove, the fastener is conical, the fastener is located in the mounting groove and located between the first connector and the second connector, the first connector is in threaded connection with the second connector, a first through hole is formed in the first connector, and a second through hole is formed in the second connector. A second through hole is formed in the second connector, a third through hole is formed in the fastener, and the water inlet end of the water injection pipe is sequentially inserted into the first through hole, the third through hole and the second through hole.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a cervical dilator. Background Art

[0002] The cervical dilator is a medical device used to dilate the cervix. It is mainly used for examinations and surgeries in obstetrics and gynecology and reproductive medicine.

[0003] Commonly used cervical dilators are mostly single rod-shaped structures. When dilating the cervix, medical staff use cervical clamps to clamp the cervix and start dilating the cervix with a small cervical dilator until the number they need is reached. The operation is cumbersome and time-consuming, which is not conducive to improving the efficiency of inspection and treatment. Utility Model Content

[0004] The main purpose of the utility model is to provide a cervical dilator to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a cervical dilator rod, comprising a rod body, a water injection pipe and a water injection joint assembly;

[0006] The rod body is made of a water-expanding material, and comprises a hand-held portion and an expansion portion;

[0007] The water outlet end of the water injection pipe is fixedly connected to the rod body, and the water inlet end of the water injection pipe is fixedly connected to the water injection joint assembly;

[0008] The water injection joint assembly includes a first connector, a second connector and a fastener; the first connector is provided with a mounting groove, one end of the second connector extends into the mounting groove, the fastener is conical, the fastener is located in the mounting groove, and the fastener is located between the first connector and the second connector, the first connector and the second connector are threadedly connected, the first connector is provided with a first through hole, the second connector is provided with a second through hole, the fastener is provided with a third through hole, and the water inlet end of the water injection pipe is inserted into the first through hole, the third through hole and the second through hole in sequence.

[0009] Furthermore, the second connecting head includes an integrally formed connecting part and a mounting part, the second through hole is located in the connecting part, the connecting part is sleeved in the mounting part, and the connecting part and the mounting part are coaxially arranged, and an internal thread is provided on the inner side wall of the mounting part; an external thread is provided on the outer side wall of the first connecting head, and the internal thread and the external thread are threadedly connected.

[0010] Furthermore, the second connector also includes an interface portion, which is fixedly connected to the mounting portion, and a water inlet is provided in the interface portion, the center line of the water inlet coincides with the center line of the second through hole, and the inner diameter of the water inlet is larger than the inner diameter of the second through hole.

[0011] Furthermore, a Luer connector is provided on the interface portion.

[0012] Furthermore, the hand-holding portion and the expansion portion are integrally formed.

[0013] Furthermore, the water injection pipe passes through the hand-held portion and extends into the expansion portion, and a plurality of water outlets are provided at a position of the water injection pipe located in the expansion portion.

[0014] Furthermore, a pull rope is fixedly connected to the hand-held part.

[0015] In the technical solution of the utility model, during use, the hand grip is held and the expansion part is placed in a preset position; then, physiological saline is injected into the second through hole in the second connector, and the physiological saline enters the water injection pipe from the water inlet end of the water injection pipe located in the second through hole; then, the physiological saline is discharged from the water outlet end of the water injection pipe along the water injection pipe, and the physiological saline contacts the expansion part, causing the expansion part to expand slowly until the expansion part expands to the required size. The device only needs to place the rod body once, and the operation is more convenient. Moreover, physiological saline can be easily injected into the rod body through the water injection pipe and the water injection joint assembly to expand the expansion part to the required size, thereby achieving the effect of dilating the cervix. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 The utility model is a structural schematic diagram of a cervical dilator rod.

[0018] Figure 2 It is a cross-sectional view of a water injection joint assembly in a cervical dilator rod of the utility model.

[0019] Figure 3 It is a structural schematic diagram of a second connector in a cervical dilator rod of the utility model.

[0020] Figure 4 The utility model is a schematic structural diagram of a water injection tube in a cervical dilator rod.

[0021] Description of the accompanying drawings: 1-rod body, 101-handle part, 102-expansion part, 2-water injection pipe, 201-water outlet, 3-first connecting head, 301-installing groove, 302-first through hole, 4-second connecting head, 401-second through hole, 402-connecting part, 403-installing part, 404-interface part, 4041-water injection port, 4042-Lure connector, 5-fastener, 501-third through hole, 6-pull rope.

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] 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 of 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.

[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] Please refer to Figure 1-Figure 4 , a cervical dilator rod, comprising a rod body 1, a water injection pipe 2 and a water injection joint assembly;

[0029] The stick body 1 is made of a water-swellable material, and includes a hand-held portion 101 and an expansion portion 102;

[0030] The water outlet end of the water injection pipe 2 is fixedly connected to the rod body 1, and the water inlet end of the water injection pipe 2 is fixedly connected to the water injection joint assembly;

[0031] The water injection joint assembly includes a first connector 3, a second connector 4 and a fastener 5; the first connector 3 is provided with a mounting groove 301, one end of the second connector 4 extends into the mounting groove 301, the fastener 5 is conical, the fastener 5 is located in the mounting groove 301, and the fastener 5 is located between the first connector 3 and the second connector 4, the first connector 3 and the second connector 4 are threadedly connected, the first connector 3 is provided with a first through hole 302, the second connector 4 is provided with a second through hole 401, the fastener 5 is provided with a third through hole 501, and the water inlet end of the water injection pipe 2 is inserted into the first through hole 302, the third through hole 501 and the second through hole 401 in sequence.

[0032] In this embodiment, during use, the handheld portion 101 is held by hand, and the expansion portion 102 is placed in a preset position; then, physiological saline is injected into the second through hole 401 in the second connector 4, and the physiological saline enters the water injection pipe 2 from the water inlet end of the water injection pipe 2 located in the second through hole 401; then, the physiological saline is discharged from the water outlet end of the water injection pipe 2 along the water injection pipe 2, and the physiological saline contacts the expansion portion 102, so that the expansion portion 102 slowly expands until the expansion portion 102 expands to the desired size. The device only needs to place the rod body 1 once, and the operation is more convenient. In addition, physiological saline can be easily injected into the rod body 1 through the water injection pipe 2 and the water injection joint assembly to expand the expansion portion 102 to the desired size, thereby achieving the effect of dilating the cervix.

[0033] Furthermore, the second connecting head 4 includes an integrally formed connecting portion 402 and a mounting portion 403, the second through hole 401 is located in the connecting portion 402, the connecting portion 402 is sleeved in the mounting portion 403, and the connecting portion 402 and the mounting portion 403 are coaxially arranged, and an internal thread is provided on the inner side wall of the mounting portion 403; an external thread is provided on the outer side wall of the first connecting head 3, and the internal thread and the external thread are threadedly connected.

[0034] In this embodiment, the connecting portion 402 is used to connect to the water injection pipe 2 , and the mounting portion 403 is used to connect to the first connector 3 .

[0035] Furthermore, the second connector 4 also includes an interface portion 404, which is fixedly connected to the mounting portion 403, and a water injection port 4041 is provided in the interface portion 404, the center line of the water injection port 4041 coincides with the center line of the second through hole 401, and the inner diameter of the water injection port 4041 is larger than the inner diameter of the second through hole 401.

[0036] In this embodiment, the interface portion 404 is used to connect a water injection device, which injects physiological saline into the water injection port 4041 . The physiological saline flows from the water injection port 4041 into the second through hole 401 , and then enters the water injection pipe 2 .

[0037] Furthermore, a Luer connector 4042 is provided on the interface portion 404 .

[0038] In this embodiment, by providing a Luer connector 4042 on the interface portion 404 , medical personnel can connect a syringe to the interface portion 404 via the Luer connector 4042 , so that the medical personnel can use the syringe to inject physiological saline into the water injection port 4041 .

[0039] Furthermore, the hand-held portion 101 and the expansion portion 102 are integrally formed.

[0040] Furthermore, the water injection pipe 2 passes through the hand-held portion 101 and extends into the expansion portion 102 . The water injection pipe 2 is provided with a plurality of water outlets 201 at a position inside the expansion portion 102 .

[0041] In this embodiment, a plurality of water outlets 201 are provided so that each location of the expansion portion 102 can uniformly absorb the physiological saline solution, thereby making each location of the expansion portion 102 expand synchronously.

[0042] Furthermore, a pull rope 6 is fixedly connected to the hand-held portion 101 .

[0043] In this embodiment, a pull rope 6 is provided on the hand-held portion 101 to facilitate medical personnel to take out the stick body 1 .

[0044] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A cervical dilator, characterized in that: It includes a rod body, a water injection pipe and a water injection joint assembly; The rod body is made of a water-expanding material, and comprises a hand-held portion and an expansion portion; The water outlet end of the water injection pipe is fixedly connected to the rod body, and the water inlet end of the water injection pipe is fixedly connected to the water injection joint assembly; The water injection joint assembly includes a first connector, a second connector and a fastener; the first connector is provided with a mounting groove, one end of the second connector extends into the mounting groove, the fastener is conical, the fastener is located in the mounting groove, and the fastener is located between the first connector and the second connector, the first connector and the second connector are threadedly connected, the first connector is provided with a first through hole, the second connector is provided with a second through hole, the fastener is provided with a third through hole, and the water inlet end of the water injection pipe is inserted into the first through hole, the third through hole and the second through hole in sequence.

2. A cervical dilator according to claim 1, characterized in that: The second connecting head includes an integrally formed connecting portion and a mounting portion, the second through hole is located in the connecting portion, the connecting portion is sleeved in the mounting portion, and the connecting portion and the mounting portion are coaxially arranged, and an internal thread is provided on the inner side wall of the mounting portion; an external thread is provided on the outer side wall of the first connecting head, and the internal thread and the external thread are threadedly connected.

3. A cervical dilator according to claim 2, characterized in that: The second connector also includes an interface portion, which is fixedly connected to the mounting portion. A water inlet is provided in the interface portion, the center line of the water inlet coincides with the center line of the second through hole, and the inner diameter of the water inlet is larger than the inner diameter of the second through hole.

4. A cervical dilator according to claim 3, characterized in that: The interface portion is provided with a Luer connector.

5. The cervical dilator according to claim 1, characterized in that: The hand-held portion and the expansion portion are integrally formed.

6. A cervical dilator according to claim 5, characterized in that: The water injection pipe passes through the hand-held part and extends into the expansion part. The water injection pipe is provided with a plurality of water outlets at a position inside the expansion part.

7. The cervical dilator according to claim 1, characterized in that: A pull rope is fixedly connected to the hand-held part.

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