Miniature uterine cavity depth injection device

Abstract

The utility model discloses a miniature uterine cavity depth injection device. The miniature uterine cavity depth injection device is composed of a protection sleeve, an injector needle body, an injector sealing cover and a needle protection horn sleeve. Due to the fact that the needle tube of the miniature uterine cavity depth injection device is long and thin, the needle tube can directly enter the uterine cavity without dilating the uterus under the guidance of the horn protection sleeve, and can be directly injected into the endometrial basal layer in a uterine cavity injection mode under the guidance of ultrasound or a hysteroscope. The endometrium injection device is reasonable in structural design, convenient to use, low in manufacturing cost, reasonable in price and easy to accept by users and the market, and the absorption of the endometrium on the medicine cannot be influenced due to the loss of the injected medicine, so that a better treatment effect can be achieved, and the endometrium injection device is reasonable in structural design, convenient to use, low in manufacturing cost and easy to accept by the users and the market.

Description

[Technical field]

[0001] The utility model belongs to the field of medical technology, in particular to a micro uterine cavity deep injection device. [Background technology]

[0002] Thin endometrium has always been a clinical problem. It is a clear factor that directly leads to a decrease in pregnancy rate. Generally speaking, thin endometrium refers to endometrial thickness less than 8mm on the day of follicular maturation or trigger day, and endometrial thickness less than 7mm in the thawing and transplantation cycle. There are many causes of thin endometrium, the most common of which is damage to the basal layer of the endometrium due to repeated intrauterine operations. The endometrium is divided into the basal layer and the functional layer. The functional layer is affected by hypothalamus-ovarian hormones and sheds and grows periodically every month, while the function of the basal layer plays a decisive role in the growth of the endometrium. At present, the clinical method of improving the thickness of the endometrium is to infuse drugs into the uterine cavity. However, it has been observed in clinical practice that because the volume of the uterine cavity is limited (up to 5 ml), the uterine cavity is connected to the fallopian tube, and the vagina is connected to the uterine cavity, this will cause the infusion fluid to flow into the fallopian tube or out of the vagina, which will affect the absorption of the drug by the endometrium and affect the treatment effect.

[0003] We can inject these drugs that can stimulate endometrial growth (such as G-CSF, growth hormone, PRP, etc.) into the basal layer of the endometrium under the guidance of ultrasound or hysteroscopy through the uterine cavity, which can better stimulate the growth of the endometrium. To this end, we propose a micro-uterine cavity deep injection device. [Contents of the utility model]

[0004] The utility model aims to solve the problems existing in the prior art and proposes a micro uterine cavity deep injection device.

[0005] In order to achieve the above object, the utility model is implemented through the following technical solutions:

[0006] A micro uterine cavity deep injection device is composed of a protective sleeve, a syringe needle body, a syringe sealing cover and a needle protection horn sleeve.

[0007] As a further solution of the utility model: the protective sleeve is made of a hard plastic material and is sleeved on the sleeve fixing glue of the syringe needle body to protect the needle tube.

[0008] As a further solution of the utility model: the syringe needle body is made of a 0.7*150mm stainless steel needle tube and a transparent plastic needle seat, the front end of the needle seat is provided with a sleeve fixing glue, and a positioning groove is provided on one side of the rear end of the needle seat.

[0009] As a further solution of the utility model: the syringe cover is made of plastic, and a positioning groove protrusion is provided on one side of the plastic cover, which can be inserted into the positioning groove on the rear end of the needle seat to play a fixing and dust-proof role.

[0010] As a further solution of the utility model: the needle guard horn sleeve is made of soft plastic and is horn-shaped as a whole. The front end of the needle guard horn sleeve is thinner, and the diameter of the front end port is 1.1mm. The rear end of the needle guard horn sleeve is wider, and the diameter of the rear end port is 3.5mm. The total length is 140mm. The stainless steel needle tube can be passed through the needle guard horn sleeve. An anti-slip ring is provided on the outside of the needle guard horn sleeve, and the anti-slip ring can be fixed to the rear end of the needle guard horn sleeve.

[0011] Compared with the prior art, the beneficial effects of the utility model are: because the needle tube of the micro-uterine cavity deep injection device of the utility model is slender, it can directly enter the uterine cavity under the guidance of the speaker protective cover without dilation of the uterus, and can be directly injected into the basal layer of the endometrium through intrauterine injection under the guidance of ultrasound or hysteroscopy, so that the injected drug will not affect the absorption of the drug by the endometrium due to loss, and can play a better therapeutic effect. In addition, the utility model has a reasonable structural design, is easy to use, has a low cost, and a reasonable price, and is easily accepted by users and the market.

Brief Description of the Drawings

[0012] The utility model is further described below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a schematic diagram of the structure of the micro uterine cavity deep injection device of the utility model.

[0014] Figure 2 The utility model is a schematic diagram of the syringe cover structure of the micro uterine cavity deep injection device.

[0015] Figure 3 The utility model is a schematic diagram of the structure of the needle protection trumpet sleeve of the micro uterine cavity deep injection device.

[0016] The markings in the attached drawings are: 1-protective sleeve; 2-syringe needle body; 3-syringe cap; 4-needle guard horn sleeve; 5-sleeve fixing glue; 6-stainless steel needle tube; 7-needle seat; 8-front end of needle seat; 9-rear end of needle seat; 10-positioning slot; 11-positioning slot protrusion; 12-front end of needle guard horn sleeve; 13-rear end of needle guard horn sleeve; 14-anti-slip ring. [Specific implementation method]

[0017] In order to facilitate the understanding of the present invention, the present invention is further described in conjunction with the accompanying drawings and embodiments, but they are not intended to be a basis for limiting the present invention.

[0018] In conjunction with the accompanying drawings, the micro-uterine cavity depth injection device consists of a protective sleeve 1, a syringe needle body 2, a syringe cap 3 and a needle guard horn sleeve 4. The protective sleeve 1 is made of a hard plastic material and is sleeved on the sleeve fixing glue 5 of the syringe needle body to protect the stainless steel needle tube 6. When using the injection device, the protective sleeve 1 is removed and the needle guard horn sleeve 4 is inserted; the syringe needle body 2 is made of a 0.7*150mm stainless steel needle tube 6 and a transparent plastic needle seat 7, the front end 8 of the needle seat is provided with a sleeve fixing glue 5, and the rear end 9 of the needle seat is provided with a positioning groove 10. When the syringe needle is not in use, the syringe cap 3 covers the rear end 9 of the needle seat, and the positioning groove protrusion 11 just fits into the positioning groove 10, which protects and prevents the injection device from dust. When using the injection device, pull out the syringe cap Cover 3, connect the rear end 9 of the needle seat with the syringe barrel. This micro-uterine cavity deep injection device can be connected with most syringes on the market; the needle guard horn sleeve 4 is made of soft plastic and is horn-shaped as a whole. The front end 12 of the needle guard horn sleeve is thinner, and the diameter of the front end port is 1.1mm. The rear end 13 of the needle guard horn sleeve is wider, and the diameter of the rear end port is 3.5mm. The total length is 140mm. The stainless steel needle tube 6 can be passed through the needle guard horn sleeve 4. The needle guard horn sleeve 4 is provided with an anti-slip ring 14 on the outside, and the anti-slip ring 14 can be fixed to the rear end 13 of the needle guard horn sleeve. When in use, the stainless steel needle tube 6 can be inserted into the needle guard horn sleeve 4 from the rear end 13 of the needle guard horn sleeve to the front end 12 of the needle guard horn sleeve. The needle guard horn sleeve 4 is provided with an anti-slip ring 14 on the outside, and the anti-slip ring 14 can be fixed to the rear end 13 of the needle guard horn sleeve.

[0019] The complete operation steps of this micro uterine cavity deep injection device are as follows:

[0020] Pull out the syringe cap 3, connect the rear end 9 of the needle seat with the syringe barrel, remove the protective sleeve 1 from the sleeve fixing glue 5, and insert the stainless steel needle tube 6 into the needle protection horn sleeve 4 from the rear end 13 of the needle protection horn sleeve to the front end 12 of the needle protection horn sleeve. The horn protective sleeve 4 is gently inserted into the cervical canal and enters the uterine cavity. Under the guidance of ultrasound or hysteroscopy, the micro uterine cavity deep injection device is inserted into the basal layer of the endometrium through uterine cavity injection, and the injection can be started.

[0021] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary rather than restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim involved.

[0022] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A micro uterine cavity deep injection device, characterized in that: The micro uterine cavity deep injection device consists of a protective sleeve, a syringe needle body, a syringe cover and a needle protection horn sleeve; the syringe needle body is made of a 0.7*150mm stainless steel needle tube and a transparent plastic needle seat, the front end of the needle seat is provided with sleeve fixing glue, and the rear end of the needle seat is provided with a positioning slot.

2. The micro uterine cavity deep injection device according to claim 1, characterized in that: The needle guard horn sleeve is made of soft plastic and is horn-shaped as a whole. The front end of the needle guard horn sleeve is thinner, and the diameter of the front end port is 1.1mm. The rear end of the needle guard horn sleeve is wider, and the diameter of the rear end port is 3.5mm. The total length is 140mm. The stainless steel needle tube can be passed through the needle guard horn sleeve. An anti-slip ring is provided on the outside of the needle guard horn sleeve, and the anti-slip ring can be fixed to the rear end of the needle guard horn sleeve.

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