CN111388047A - Uterine cavity hemostasis assembly for postpartum puerpera - Google Patents

Abstract

The invention discloses a uterine cavity hemostasis component for postpartum women, comprising a hemostatic balloon, wherein the hemostasis balloon includes a balloon, a blood drainage tube, and a liquid injection tube communicated with the balloon, and the balloon is fixed On the blood drainage tube, the end of the blood drainage tube away from the balloon is provided with an opening, the upper end of the blood drainage tube is provided with at least one through hole, and the liquid injection tube passes through the blood drainage tube It is characterized in that: it also includes a fixing device, the fixing device is arranged on the blood drainage tube under the balloon, and the fixing device includes a holding device for supporting The support ring that lifts the uterus and closes the cervical orifice; under the lifting action of the support ring, the cervical orifice is placed in the middle of the support ring, so that the support ring has the effect of squeezing the cervical orifice inward, so that the balloon inside the uterus cannot be released from the cervix. The cervix slips out; the support ring reduces the cervix, preventing the blood from flowing into the vagina through the cervix, which is convenient for observation and operation.

Description

A uterine cavity hemostatic component for postpartum maternity

technical field

The invention relates to the field of medical supplies, in particular to a uterine cavity hemostatic component for postpartum women.

Background technique

At present, the most widely used balloon for postpartum hemorrhage hemostasis is Bakri's COOK balloon. This balloon can be used for patients with postpartum hemorrhage during natural delivery and cesarean section. The balloon can be filled with water up to 500ml. The hemostatic balloon is placed in the uterine cavity, and the hemostatic balloon generates a hydrostatic pressure from the uterine cavity to the outside of the uterine cavity, which is greater than the uterine arterial pressure. Arterial entry, can effectively reduce postpartum uterine bleeding.

The structure of the hemostatic balloon is similar to that of a urinary catheter. There is an inner balloon at the top. After inflation, it can be fixed in the uterus and pressed against the uterine opening, allowing blood to flow in from the inlet at the upper end of the inner balloon, and then from the outlet of the catheter. out to collect the blood inside the uterus.

However, for patients with dilated cervix (mothers just after vaginal delivery), the use of hemostatic balloons has the following two drawbacks:

1. Because the cervical orifice cannot shrink naturally and the opening is too large, the balloon can easily fall off into the vagina after being filled with water, and the balloon cannot be correctly fixed in the preset position.

2. Because the balloon cannot completely block the uterine opening, the blood in the uterus will flow into the vagina, and after delivery, the vaginal opening (perineum) may have a gap, which needs to be sutured. If there is blood at this time. If it flows out, it will block the field of vision, and the operation position will be exposed and blurred.

Therefore, in view of the above two problems, doctors need to pack gauze in the vagina to prevent the balloon from falling off, and at the same time fill the gap to temporarily block the hemostatic balloon to prevent the hemostatic balloon from slipping and blood flowing into the vagina and affecting the operation field of vision.

At the same time, the filling method of gauze also caused the following clinical situations:

1. The gauze is absorbent and can easily absorb blood, which makes it impossible for medical staff to estimate the amount of bleeding.

2. When using gauze to block, it is easy to leave gauze in the patient's body, causing medical accidents and danger to patients.

3. When taking the balloon, take out the vaginal gauze first and then take the balloon. The gauze may bring secondary trauma to the vagina, causing abrasions or lacerations, and the gauze compresses the urethra after packing, and a urinary catheter needs to be placed together.

SUMMARY OF THE INVENTION

In view of the deficiencies of the prior art, the present invention provides a uterine cavity hemostasis component for postpartum women, including a hemostatic balloon, wherein the hemostatic balloon includes a balloon, a blood drainage tube, and a liquid injection tube communicated with the balloon, The balloon is fixed on the blood drainage tube, the end of the blood drainage tube away from the balloon is provided with an opening, the upper end of the blood drainage tube is provided with at least one through hole, and the liquid injection tube passes through. The uterine cavity hemostatic component also includes a fixing device, and the fixing device is arranged on the blood drainage tube under the balloon. The fixation device includes a support ring used to lift the uterus and seal the cervix.

In this solution, the support ring may be solid or hollow, or alternate forms of hollow and solid, etc. Among them, the support ring can be fixed on the blood drainage tube of the balloon, and the position of the support ring and the balloon is relatively fixed and moves synchronously; the support ring can also be used as a separate part relative to the hemostatic balloon, and the support ring can move freely relative to the balloon, Movement of the support ring will not affect the fixation of the balloon.

Wherein, the support ring may adopt a completely solid structure, and the support ring is made of rubber, soft plastic or silica gel.

Wherein, the support ring can also adopt a hollow structure, the support ring is hollow, and the support ring is provided with an inflation tube for inflating the inside thereof. Before being inflated, the support ring is small in size. The medical staff can use clamps or other tools to insert the support ring into the vagina, and inject liquid or gas into the cavity of the support ring through the inflatable tube to expand it, so that the Maintains some structural stiffness and shape, allowing it to be fixed between the medial pubic arch and the posterior vaginal fornix.

Preferably, the outer part of the support ring is a stable half ring, and the inner part of the support ring is a clamping half ring, and the deformation ability of the clamping half ring is lower than that of the stable half ring. After liquid injection or inflation, the support ring expands, and the semi-annular deformation capacity of the clamping position is higher than that of the stable semi-annular. Therefore, the clamping position semi-annular in the inner part of the supporting ring expands inward. Inflation causes the cervix to contract inward.

Preferably, the fixing device further comprises a funnel-shaped bracket, the support ring is fixed above the bracket, and the bracket is arranged outside the blood drainage tube; The blood collection channel of the tube. The funnel-shaped stent is used to collect blood from the cervix, preventing the blood in the uterus from flowing into the vagina, affecting the operation of medical staff and facilitating the observation of vaginal bleeding; the capacity of the funnel-shaped stent is limited, and blood retention in the stent will affect the In case of misjudgment of uterine bleeding by medical staff, the blood collection channel is set to guide the blood in the stent into the blood drainage tube and flow out of the body.

The connection between the bracket and the blood drainage tube can be fixedly connected to ensure the stability of the position of the support ring and the hemostatic balloon.

The blood collection channel includes a plurality of arc-shaped holes, and the arc-shaped holes are arranged along the circumferential direction of the blood drainage tube. The holes of the blood collection channel can be circular holes, square holes, or arc-shaped holes, among which, arc-shaped holes are preferred, because the arc-shaped holes are longer in length, and can quickly introduce the blood in the stent into the blood drainage tube and discharge it from the body.

Preferably, a plurality of hard rubber strips are arranged vertically and horizontally in a grid shape on the inner wall of the bracket, the hard rubber strips are hollow, and the inner cavity of the hard rubber strips is communicated with the inflation tube. The hard rubber strip is used to support the bracket and keep the bracket in the shape of a funnel. The inner cavity of the hard rubber strip is communicated with the inflation tube, and its shape is more stable after liquid injection or inflation.

Preferably, the inflatable tube passes through the blood drainage tube and exits from the side wall of the end of the blood drainage tube. The inflatable tube is arranged on the inner wall of the blood drainage tube and has a simple structure, so that there is only one blood drainage tube in the pipeline, and the medical staff can easily put it into the vagina.

The uterine cavity hemostatic assembly composed of a fixedly connected stent and a blood drainage tube is suitable for puerperae with a height between 160-165cm, and the distance between the uterine cavity and the cervix is compatible with the design of the uterine cavity hemostasis assembly. For mothers whose height is not in the range of 160-165cm, the bottom end of the stent and the blood drainage tube are connected in a flexible way, the support ring and the stent can move up and down relative to the blood drainage tube, and the distance between the support ring and the balloon can be adjusted. For women who are taller and have a larger distance between the uterine cavity and the cervix, the support ring and stent can be moved downward to increase the distance between the support ring and the balloon, so as to adapt to women with higher height and a larger distance between the uterine cavity and the cervix. ; For women with short height and small distance between uterine cavity and cervix, move the support ring and stent upward to reduce the distance between the support ring and the balloon, so as to adapt to the short height and small distance between the uterine cavity and the cervix. maternity.

Preferably, the outer surface of the balloon is provided with a number of anti-skid protrusions, the anti-skid protrusions are circumferentially distributed on the outer surface of the balloon in multiple rows and rows, and the anti-skid protrusions include anti-skid protrusions for increasing friction. A cloth block and a fixed convex point, the cloth block is fixed on the convex point, and the convex point is arranged on the outer surface of the balloon and is fixedly connected. When no water is injected, the anti-skid bumps are distributed on the outer surface of the balloon at equal intervals. After the balloon is filled with water, the balloon expands, thereby driving the anti-skid bumps to spread out and contact the inner wall of the uterus. Soaking in magnesium chloride or epinephrine can speed up blood coagulation in the uterine wall, and the cloth can increase the friction with the uterine wall to a certain extent, preventing the sub-balloon from protruding from the uterus.

The beneficial technical effect of the present invention relative to the prior art is:

1. The support ring can be stuck inside the body (between the inner side of the pubic arch and the posterior fornix of the vagina), and the mouth in the middle of the support ring is aligned with the cervical orifice. In the middle of the support ring, the support ring has an inward pressing effect on the cervical orifice, so that the cervical orifice is in a relatively natural closed state, and the opening of the cervical orifice becomes smaller, so that the balloon inside the uterus cannot slide out of the cervical orifice.

2. The support ring reduces the cervical opening, and the bottom of the balloon fits more closely with the uterine cavity wall in the middle and lower parts of the cervix, so that the blood flows into the blood drainage tube from the through hole above the balloon, preventing the blood from flowing into the vagina through the cervical opening. , reduce the impact of blood on the operation site, and the bleeding state of the vaginal opening can also be accurately observed.

Description of drawings

1 is a cross-sectional view of a uterine cavity hemostatic component in Embodiment 1 of the present invention;

2 is a cross-sectional view of the uterine cavity hemostasis assembly in Embodiment 2 of the present invention;

Fig. 3 is the enlarged view of A place of Fig. 2;

Fig. 4 is the enlarged view at B of Fig. 2;

5 is a cross-sectional view of the uterine cavity hemostatic component in Embodiment 3 of the present invention (the balloon is in a state of not being filled with water);

Fig. 6 is the enlarged view at C of Fig. 5;

Fig. 7 is the schematic diagram of the support ring to lift the cervical os;

Description of reference numerals: 1 balloon, 11 cloth piece, 12 convex point, 2 blood drainage tube, 3 liquid injection tube, 4 support ring, 41 stable half ring, 42 clamping half ring, 43 round hole, 5 bracket, 51 Arc-shaped hole, 6 inflatable tubes, 7 cervical orifices, 8 uterine cavities.

Detailed ways

Example 1:

As shown in FIGS. 1 and 7 , it is the first embodiment of the hemostatic component used in the uterine cavity 8 for postpartum women in the present application.

A hemostatic component for postpartum uterine cavity 8, including a hemostatic balloon and a fixing device, the hemostatic balloon includes a balloon 1, a blood drainage tube 2, and a liquid injection tube 3 communicated with the balloon 1, and the balloon 1 is fixed on the On the blood drainage tube 2, the end of the blood drainage tube 2 away from the balloon 1 is provided with an opening, the upper end of the blood drainage tube 2 is provided with at least one through hole, and the liquid injection tube 3 passes through the blood drainage tube 2 and extends from the end of the blood drainage tube 2. through the side wall.

The fixing device is arranged below the balloon 1, and the fixing device includes a support ring 4 for holding the uterus and closing the cervical orifice 7, and the support ring 4 is made of solid silicone. The support ring 4 is a separate component relative to the hemostatic balloon, and the support ring 4 can move independently.

When in use, the medical staff puts the unfilled or inflated balloon 1 into the uterine cavity 8 through surgical forceps, the bottom of the balloon 1 is placed at the cervical orifice 7, and then the support ring 4 is brought into the vagina through the surgical forceps. Inside, slowly push the support ring 4 into the vagina in an oblique position, gradually flatten the support ring 4, slowly push the rear end of the support ring 4 to the posterior fornix of the vagina, and finally push the front end up to make the support ring 4 The front end is stuck on the inner side of the pubic arch. After being placed, the balloon 1 is injected with physiological saline through the liquid injection tube 2 to inflate the balloon 1 and begin to squeeze the inner wall of the uterine cavity 8 to complete the water injection and pressurization of the balloon 1.

The support ring 4 is stuck in the body (between the inner side of the pubic arch and the posterior fornix of the vagina), under the lifting action of the support ring 4, and with the natural sagging of the uterus with gravity, the cervical orifice 7 is located in the center of the support ring 4, so that the support The ring 4 has a certain inward pressing effect on the cervix 7, so that the cervix 7 is in a relatively natural closed state, the cervix 7 becomes smaller, and the balloon 1 after water injection cannot slide out from the uterine cavity 8 to achieve The effect of fixing balloon 1.

Example 2:

As shown in Figures 2-4, this embodiment is similar to Embodiment 1, the difference is that: the fixing device further includes a funnel-shaped bracket 5, the support ring 4 is fixed above the bracket 5, and the bracket 5 is fixed on the blood drainage tube. 2. Outer wall; in this embodiment, the bracket 5 arranged at the bottom of the support ring 4 is relatively fixed with the blood drainage tube 2 .

The blood collection channel includes a plurality of arc-shaped holes 51 , and the arc-shaped holes 51 are arranged along the circumferential direction of the blood drainage tube 2 .

The stent 5 is fixed with the blood drainage tube 2, and its advantages are: when the support ring 4 is fixed in the human body (between the inner side of the pubic arch and the posterior fornix of the vagina), the position of the stent 5 is relatively fixed, which produces a certain support for the blood drainage tube 2. Lifting effect, its position is fixed, thereby preventing balloon 1 from protruding from the uterus.

Secondly, there are two tubes at the bottom of the stent 5, one is for the blood to flow out of the blood collection channel, and the other is the inflatable tube 6 for liquid injection or inflation.

The blood collection channel is provided at the bottom of the stent, and the stent 5 is provided with a blood collection channel for blood to flow into the blood drainage tube 2 . The funnel-shaped stent 5 can collect the blood flowing out from the cervical orifice 7, and flow into the blood drainage tube 2 through the arc-shaped hole 52 on the blood collection channel, and at the same time, the through hole at the upper end of the blood drainage tube 2 leads the blood in the upper end of the uterine cavity 8 to be led out, The bleeding in the uterine cavity 8 of the puerpera can be observed through the amount of blood flowing out of the blood drainage tube 2, and the blood in the uterine cavity 8 flows out from the blood drainage tube 2 and will not flow into the vagina, which is convenient for medical staff to observe and operate.

Wherein, the inflatable tube 6 is also arranged in the support and the support ring 4 is injected with liquid or inflated. The internal injection of the hollow support ring 4 can be injected with liquid or gas, and the gas injection will make the quality of the support ring 4 smaller, which is placed in the puerperae. After the body is placed in the body, the physical burden of the puerpera can be reduced; the injection of the liquid can make the structure and shape of the support ring 4 more stable.

Thirdly, the support ring 4 in this embodiment is hollow, and the support ring 4 is provided with an inflatable tube 6 for injecting liquid or inflating the inside of the support ring 4 . The support ring 4 is hollow, and its advantages are: before injection or inflation, the volume of the support ring 4 is small, and the medical staff can use clamps or other tools to insert the support ring 4 into the vagina, and the liquid is discharged through the inflatable tube 6. Or gas is injected into the cavity of the support ring 4 to make it expand, so that a certain structural hardness and shape can be maintained, allowing it to be fixed between the inner side of the pubic arch and the posterior vaginal fornix. The mouth 7 is naturally sagging on the center of the support ring 4 by gravity, so that the support ring 4 has a certain inward extrusion effect on the cervical orifice 7, so that the cervical orifice 7 is in a relatively naturally closed state, and the cervical orifice 7 becomes smaller. The balloon 1 cannot slide out from the uterine cavity 8 to achieve the effect of fixing the balloon 1 .

The outer part of the support ring 4 is the stable half ring 41, and the inner part of the support ring 4 is the clamping half ring 42. The deformation capacity of the clamping position half ring 42 is lower than that of the stable half ring 41. After injection or inflation , the deformation capacity of the retaining half ring 42 is higher than that of the stable half ring 41, so the retaining half ring 42 in the inner part of the retaining ring 4 expands inward. The inner expansion can make the cervical orifice 7 shrink inward, the cervical orifice 7 is naturally drooping on the center of the support ring 4 by gravity, and the inner side of the support ring 4 is squeezed inward, so that the cervical orifice 7 is forced to shrink inward and is in a closed state, and the balloon is in a closed state. 1. The bottom fits more closely with the wall of the uterine cavity 8 in the middle and lower parts of the cervix, so that the balloon 1 is stably placed in the middle and lower parts of the uterine cavity 8.

The bottom of the bracket is fixedly connected with the blood drainage tube 2 to ensure the stability of the position of the support ring 4 and the hemostatic balloon; the blood collection channel includes a plurality of arc-shaped holes, and the arc-shaped holes are along the circumference of the blood drainage tube 2. Orientation settings. The holes of the blood collection channel can adopt circular holes, square holes, and arc-shaped holes, among which, arc-shaped holes are preferred, because the arc-shaped holes are longer in length, and can quickly introduce the blood in the stent into the blood drainage tube 2 and discharge it from the body .

Embodiment 2 is suitable for puerperae whose height is between 160-165 cm, and the distance between the uterine cavity 8 and the cervix is compatible with the design of the hemostatic balloon. If the mother is taller and the distance between the uterine cavity 8 and the cervix is relatively large, after the placement of the ring 4, the balloon 1 is still partially exposed at the cervix, resulting in the cervix not being able to close normally, or even being squeezed open by the balloon 1. . For women with lower height, the distance between the uterine cavity 8 and the cervix is small. After the support ring 4 is placed and fixed, there is a gap between the balloon 1 and the cervix, so that the balloon 1 cannot be accurately stuck in the palace. For the inner wall of the uterine cavity 8 above the mouth, the compression position of the balloon 1 is concentrated on the inner wall of the middle and upper part of the uterine cavity 8; therefore, for a taller or shorter puerpera, the hemostatic balloon in Example 3 needs to be selected.

Example 3:

As shown in FIGS. 2-6 , this embodiment is similar to Embodiment 2. In this embodiment, the support ring 4 and the stent 5 can move up and down relative to the blood drainage tube 2 , so as to adjust the gap between the support ring 4 and the balloon 1 . The distance between the bottom of the stent 5 and the blood drainage tube 2 is movably connected. , For women with a large distance between the uterine cavity 8 and the cervix, the support ring 4 and the stent can be moved down to increase the distance between the support ring 4 and the balloon 1, so as to adapt to the taller height and the larger distance between the uterine cavity 8 and the cervix. For large puerperae; for puerperae with taller height and larger distance between the uterine cavity 8 and the cervix, the support ring 4 and the stent can be moved down, and the distance between the support ring 4 and the balloon 1 can be increased to adapt to the higher height, For women with a large distance between the uterine cavity 8 and the cervix; for women with short height and a small distance between the uterine cavity 8 and the cervix, move the support ring 4 and the stent upward to reduce the distance between the support ring 4 and the balloon 1, It is suitable for women with short height and small distance between the uterine cavity 8 and the cervix.

Secondly, there are several hard rubber strips distributed vertically and horizontally on the inner wall of the bracket, the hard rubber strips are hollow, and the inner cavity of the hard rubber strips is communicated with the inflation tube 6; the hard rubber strips are used to support the bracket, so that the bracket can keep the funnel shape, the inner cavity of the hard rubber strip is communicated with the gas tube 6, and its shape is more stable after liquid injection or inflation; The inflatable tube 6 is arranged on the inner wall of the blood drainage tube 2, and has a simple structure, so that there is only one blood drainage tube 2 in the pipeline, and the medical staff can easily put it into the vagina.

Thirdly, the outer surface of the balloon 1 is provided with anti-slip bumps for anti-slip. There are several anti-slip bumps. The anti-slip bumps are distributed in multiple rows and rows at equal intervals. The anti-slip bumps include cloth blocks 11 for increasing friction. And the bumps 12 for fixing, the cloth block 11 is fixed on the bumps 12, the bumps 12 are fixed on the outer surface of the balloon 1, the material of the bumps 12 can be elastic materials such as rubber, silicone, etc. The cloth block 11 A hole can be provided in the center for fixing and bonding with the outside of the bump 12 .

The anti-skid protrusions are fixed on the outer surface of the balloon 1, and its advantages are: when no water is injected, the anti-skid protrusions are circumferentially distributed on the outer surface of the balloon 1 at equal intervals. After the balloon 1 is filled with water, the balloon 1 expands, so that the It spreads out and comes into contact with the wall of the uterine cavity 8. The cloth piece 11 on the anti-skid protrusion is soaked with magnesium chloride or adrenaline, which can accelerate the blood coagulation of the uterine cavity 8 wall, and the cloth piece 11 increases the size of the uterine cavity to a certain extent. The frictional force of the 8 walls prevents the sub-balloon 1 from coming out of the uterus.

The above are merely embodiments of the present invention, and are not intended to limit the present invention. Various modifications and variations of the present invention are possible for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims (10)

1. A uterine cavity hemostasis assembly for postpartum maternity, comprising a hemostatic balloon, the hemostatic balloon comprising a balloon (1), a blood drainage tube (2), a liquid injection tube communicated with the balloon (1) (3), the balloon (1) is fixed on the blood drainage tube (2), and the end of the blood drainage tube (2) away from the balloon (1) is provided with an opening, and the blood The upper end of the drainage tube (2) is provided with at least one through hole, and the liquid injection tube (3) passes through the blood drainage tube (2) and passes through the side wall of the end of the blood drainage tube (2) , characterized in that: it also includes a fixing device, the fixing device is arranged on the blood drainage tube (2) below the balloon (1), and the fixing device includes a support ring for lifting the uterus and sealing the cervix (4). 2 . The uterine cavity hemostatic component for postpartum women according to claim 1 , wherein the support ring ( 4 ) is made of solid rubber, soft plastic or silica gel. 3 . 3. The uterine cavity hemostasis assembly for postpartum women as claimed in claim 1, wherein the support ring (4) is hollow, and the support ring (4) is provided for inflating its interior the inflation tube (6). 4. The uterine cavity hemostasis assembly for postpartum women as claimed in claim 3, wherein the outer part of the support ring (4) is a stable half ring (41), and the support ring (4) The inner part is the retaining half ring (42), and the deformation capacity of the retaining half ring (42) is lower than that of the stable half ring (41). 5. The uterine cavity hemostasis assembly for postpartum women as claimed in claim 3, wherein the fixing device further comprises a funnel-shaped bracket (5), and the support ring (4) is fixed on the Above the bracket (5), the bracket (5) is arranged outside the blood drainage tube (2); the bracket (5) is provided with a blood collection channel for blood to flow into the blood drainage tube (2). 6 . The uterine cavity hemostasis assembly for postpartum women according to claim 5 , wherein the bottom of the bracket is fixedly connected to the blood drainage tube, and the blood collection channel comprises a plurality of arcs. 7 . The hole (51), the arc-shaped hole (51) is arranged along the circumferential direction of the blood drainage tube (2). 7 . The uterine cavity hemostasis component for postpartum women as claimed in claim 5 , wherein: the inner wall of the bracket ( 5 ) is provided with several hard rubber strips distributed vertically and horizontally in a grid shape, and the The hard rubber strip is hollow, and the inner cavity of the hard rubber strip is communicated with the inflation tube (6). 8. The uterine cavity hemostatic component for postpartum women according to claim 5, characterized in that: the inflatable tube (6) passes through the blood drainage tube (2) and drains from the blood The side wall of the end of the drainage tube (2) passes out. 9 . The uterine cavity hemostatic component for postpartum women according to claim 6 , wherein the bottom end of the bracket ( 5 ) is movably connected with the blood drainage tube ( 2 ). 10 . 10. The uterine cavity hemostasis component for postpartum women according to claim 6, characterized in that: the outer surface of the balloon (1) is provided with a plurality of anti-slip bumps, and the anti-slip bumps are many A plurality of rows are circumferentially distributed on the outer surface of the balloon (1). 11) being fixed on the protruding point (12), the protruding point (12) being arranged on the outer surface of the balloon (1) and being fixedly connected.

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