CN209996933U - injection device for vaginal wall water separation - Google Patents

Abstract

An injection device used for water separation of vaginal wall belongs to the technical field of medical devices. It includes a needle body, the front end of the needle body is provided with a needle body, a contact sliding body is slidably arranged on the needle body, the side of the contact sliding body is provided with a co-location rod, and the rear of the co-location rod is provided with The measuring rod is parallel to the needle body, and the side part of the needle body is provided with an indicator rod corresponding to the measuring rod. The injection needle is long, which can meet the needs of patients with different individual differences to perform the water separation operation of the anterior bladder wall space and the bladder lateral wall space. In addition, a needle insertion metering structure is provided outside the needle tube, so that the operating doctor can easily determine the depth of the needle puncturing into the tissue. Provide objective and convenient operation information for surgery, improve the accuracy and safety of surgery.

Description

An injection device applied to vaginal wall water separation

technical field

The utility model relates to an injection device applied to vaginal wall water separation, in particular to a liquid injection device specially used for female pelvic organ prolapse surgery and suitable for vaginal wall water separation steps, belonging to the technical field of medical devices.

Background technique

With the advancement of the aging society, the survey found that the incidence of pelvic organ prolapse in elderly patients is increasing year by year. The problems of urination disorder and defecation disorder caused by it seriously affect the quality of life of patients, so more and more elderly patients choose surgical treatment to accurately improve the problem of pelvic organ prolapse.

An important step in the surgical treatment of such diseases is to separate the vaginal wall from the anterior bladder wall and the bladder lateral wall. Under normal circumstances, the adhesion between the vaginal wall and the bladder is relatively dense. Usually, doctors choose to use a common syringe to inject normal saline into the vesicovaginal space to separate the bladder wall and vaginal wall tissue. This operation is medically called "water separation" . However, the use of ordinary syringes in this step has the following defects: 1. The needle of the syringe is short. The length of the needle of a common syringe is about 4-5cm. For some patients with taller height or deeper pelvis, the gap between the bladder side and the vaginal wall is about 8-10cm. It is difficult for a common syringe to achieve a satisfactory water separation depth. In the case of unsatisfactory water separation, the follow-up operation may increase the amount of intraoperative blood loss; 2. The depth of the needle inserted into the tissue cannot be clearly determined by ordinary syringes. The role of water separation. The mastery of the depth of its insertion depends on the clinical experience of the physician.

In view of the above-mentioned existing technical situation, the applicant of the present invention has made a lot of repeated and beneficial explorations, and the final product has achieved effective results, and has formed the technical solution to be introduced below.

Utility model content

In view of the above deficiencies, the present utility model provides an injection device for vaginal wall water separation, the injection needle is long, and can meet the needs of different individual patients to perform water separation operations in the bladder anterior wall gap and the bladder side wall gap. In addition, a needle insertion metering structure is provided outside the needle tube, so that the operating doctor can easily determine the depth of the needle puncturing into the tissue. Provide objective and convenient operation information for surgery, improve the accuracy and safety of surgery.

The utility model is realized by the following technical solutions: an injection device applied to vaginal wall water separation, comprising a needle body, the front end of the needle body is provided with a needle body, and the needle body is slidably provided with a contact sliding body The side part of the contact sliding body is provided with a co-location rod, the end of the co-location rod away from the contact sliding body is provided with a metering rod parallel to the needle body, and the side part of the needle body is provided with a corresponding metering rod. indicator rod.

Further, the front side of the needle body is provided with a positioning plate, the positioning plate is located at the rear end of the indicator rod, the metering rod extends from the positioning rod toward the positioning plate and passes through the positioning plate, and the extended end of the metering rod A limiting bottom plate is provided to prevent the measuring rod from sliding off relative to the positioning plate, and the positioning plate is provided with an accommodating groove matched with the limiting bottom plate.

Further, the front end of the needle tube body is interference-fitted with an installation sleeve, and the positioning plate and the indicator rod are both glued and fixed on the installation sleeve.

Further, an installation chute is provided on one side of the accommodating groove on the positioning plate, and a limit block is slidably arranged in the installation chute for stabilizing the limiting bottom plate in the accommodating groove.

Further, the included angle between the alignment rod and the plane where the needle body is located is 75° to 85°, and the measurement rod is provided with a measurement scale line.

Further, each 0.2 cm of the measurement scale line is used as a scale unit, and a scale value that is easy to visually identify is provided on one side of the measurement scale line of every 1 cm.

Further, the length of the needle body is 8-10 cm, and the scale distance between the initial metering scale line on the measuring rod and the tip of the indicator rod is equal to the length of the oblique tip at the front end of the needle body.

Further, the contact sliding body includes a slider installation tube, a snap groove, a joint groove, a stainless steel tube, a disposable cushion and a cushion channel. The inner wall of the slider installation tube is provided with a snap groove, so A stainless steel pipe is clamped in the snap groove, sealant is coated between the stainless steel pipe and the snap groove, and the inner diameter of the stainless steel pipe is smaller than the inner diameter of the slider installation pipe, and the top of the slider installation pipe is provided with a sealant. An engaging groove, the disposable soft cushion is matched with the engaging groove through the engaging protrusion at the bottom, and a cushion channel is arranged in the middle, and the inner diameter of the cushion channel is larger than the inner diameter of the stainless steel tube.

Further, the bottom of the slider mounting tube is threadedly connected with a buffer base for shock absorption with the needle tube body, a base channel is arranged in the middle of the buffer base, and the inner diameter of the base channel is larger than the inner diameter of the stainless steel tube.

Further, the inner side of the mouth of the stainless steel pipe adopts rounded corners to set

The beneficial effects of the present utility model:

1. The device has a long injection needle, which can meet the needs of patients with different individual differences to perform the water separation operation of the bladder anterior wall space and the bladder side wall space; in addition, a needle insertion metering structure is set outside the needle tube, so that the operating doctor can easily determine the needle puncture Enter the depth of the tissue to prevent accidental injury caused by the doctor's subjective factors; provide objective and convenient operation information for the operation, and improve the accuracy and safety of the operation;

2. The limit base plate is used to effectively prevent the measuring rod from sliding off the positioning plate. At the same time, when the limit base plate is located in the accommodating groove, the initial position of the limit base plate and the measuring rod can be effectively fixed by sliding the limit block, and can be placed in the accommodating groove. When in use, the limit block is slid out to cancel the fixation, which greatly improves the practicability;

3. The scale value is set on the measuring rod, so that the medical staff can observe more directly and accurately during the operation;

4. The use of stainless steel tube and needle tube can greatly reduce the sliding friction force. The inner diameter of the cushion channel and the base channel are larger than the inner diameter of the stainless steel tube, so that the parts where the needle body passes through are all the inner wall of the stainless steel tube, which effectively improves the practicability.

Description of drawings

1 is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

Fig. 2 is an enlarged view of the structure of the utility model at place A in Fig. 1;

Fig. 3 is the structural representation after the use of Embodiment 1 of the present utility model;

4 is a schematic plan view of Embodiment 1 of the present utility model;

5 is a schematic diagram of the internal structure of the contact sliding body in the utility model;

FIG. 6 is an enlarged view of the structure of the utility model at place B in FIG. 5;

7 is a schematic diagram of the overall structure of Embodiment 2 of the present invention.

In the figure, the needle body 1, the needle body 11, the contact sliding body 2, the positioning rod 21, the slider installation tube 22, the snap groove 221, the joint groove 222, the stainless steel tube 23, the disposable cushion 24, the cushion channel 241, Buffer base 25, base channel 251, measuring rod 3, measuring scale line 31, limit base plate 32, positioning plate 4, installation chute 41, accommodating groove 42, limit block 5, installation slider 51, indicator rod 6, Mounting sleeve 7.

Detailed ways

For better understanding, the embodiments of the present utility model are explained in detail below with reference to the accompanying drawings.

Example 1

The following is a description of Example 1.

As shown in Figures 1 to 2, an injection device applied to vaginal wall water separation, comprising a needle body 1, a needle body 11, a contact sliding body 2, a positioning rod 21, a measuring rod 3, a measuring scale line 31, and a positioning plate 4 , the installation chute 41, the limit block 5, the installation slider 51 and the indicator rod 6, the needle body 1 is provided with a needle body 11 at the front end, and the needle body 11 is slidably provided with a contact sliding body 2, the The side part of the contact sliding body 2 is glued and fixed to one end of the positioning rod 21, the angle between the positioning rod 21 and the plane where the needle body 11 is located is 75°~85°, and the other end is glued and fixed with the needle body 11 A parallel measuring rod 3, the measuring rod 3 is evenly provided with a measuring scale line 31 that is a scale unit every 0.2 cm, and is located on one side of every 1 cm measuring scale line 31 and is provided with a scale value that is easy to visually identify, the The front end side of the needle tube body 1 is respectively glued and fixed with an indicator rod 6 and two parallel positioning plates 4 located on the rear side of the indicator rod 6, wherein the indicator rod 6 corresponds to the metering scale line 31 and is far away from all parts of the indicator rod 6. The positioning plate 4 is provided with an installation chute 41 , and the limit block 5 is slidably arranged in the installation chute 41 through the installation slider 51 at the bottom of one side.

The length of the needle body 11 is 8-10 cm. When the limiting bottom plate 32 is located in the accommodating groove 42, the front end of the contact sliding body 2 is aligned with the rear side of the oblique tip of the needle body 11. The metering rod 3 The distance between the initial 0 metering scale line and the tip of the indicator rod 6 is equal to the length of the oblique tip of the front end of the needle body 11 to reserve the length of the oblique tip of the needle body 11 to make the measurement more accurate.

As shown in FIGS. 3 to 4 , the measuring rod 3 extends from the co-locating rod 21 toward the positioning plate 4 and passes through the two positioning plates 4 in sequence. The position-limiting bottom plate 32 that slides off is provided with a accommodating groove 42 on the side of the mounting chute 41 on the positioning plate 4 away from the indicator rod 6 for matching the position-limiting bottom plate 32 .

As shown in FIGS. 5 to 6 , the contact sliding body 2 includes a slider mounting tube 22 , a snap groove 221 , an engaging groove 222 , a stainless steel tube 23 , a disposable soft pad 24 , a soft pad channel 241 , a buffer base 25 and The base channel 251, the inner wall of the slider installation pipe 22 is provided with a snap groove 221, the snap groove 221 is engaged with a stainless steel pipe 23, and the stainless steel pipe 23 and the snap groove 221 are coated with Sealant is installed, and the inner diameter of the stainless steel tube 23 is smaller than the inner diameter of the slider installation tube 22. The slider installation tube 22 is provided with a joint groove 222 at the top, and the disposable soft pad 24 is connected to the joint groove through the joint protrusion at the bottom. 222, and there is a cushion channel 241 in the middle. The bottom of the slider mounting tube 22 is screwed with a buffer base 25 for shock absorption with the needle tube body 1. The buffer base 25 is provided with a base channel 251 in the middle. , the inner diameter of the cushion channel 241 and the base channel 251 are both larger than the inner diameter of the stainless steel tube 23, so as to ensure a small friction between the stainless steel tube 23 and the needle body 11, and it is convenient to contact the sliding body 2 to slide. The materials used for the pad 24 include but are not limited to sterilized nitrile rubber and sterilized vinyl, and the materials used for the cushion base 25 include but are not limited to natural rubber and neoprene.

The sliding block installation pipe 22, the positioning rod 21, the metering rod 3, the positioning plate 4, the limit block 5 and the indicating rod 6 are all made of medical PVC material, and the inner side of the nozzle of the stainless steel pipe 23 is set with rounded corners. In order to prevent the accumulation of fluid residue and facilitate disinfection.

Example 2

The following is a description of Example 2.

In Embodiment 2, for the same structure as in Embodiment 1, the same symbols are given, and the same description is omitted. Embodiment 2 makes improvements on the basis of Embodiment 1. As shown in FIG. The front end of the needle body 1 is provided with an installation sleeve 7 , and the positioning plate 4 and the indicator rod 6 are glued and fixed on the installation sleeve 7 .

The advantage of this embodiment is that the device can be removed from the needle tube body 1, which is convenient for sterilization and repeated use, greatly reduces the use cost, and improves the practicability.

The use of the injection device is as follows:

First, install the sterilized disposable soft pad 24 into the engaging groove 222 contacting the front end of the sliding body 2, and then slide the metering rod 3 in the positioning plate 4, so that the limiting bottom plate 32 at the bottom of the metering rod 3 enters the position of the positioning plate 4. In the accommodating groove 42, further slide the limit block 5 to the rear side of the limit base plate 32, so that the limit base plate 32 and the metering rod 3 are fixed, and the contact sliding body 2 is located at the rear side of the upper inclined tip of the needle body 11, and the indicator rod 6 Corresponding to the front side of the 0 scale line on the metering plate 3, to complete the preparation operation before the operation;

When starting to use, slide the limit block 5 along the installation chute 41 to the initial position, slowly insert the needle body 11 into the tissue skin, contact the disposable soft pad 24 on the sliding body 2 to contact the skin and receive the reaction force from the skin, Make the inner wall of the stainless steel tube 23 slide backward on the needle body 11, and then the alignment rod 21 drives the metering rod 3 to move backward, and the indicator rod 6 points out the insertion depth of the needle body 11 corresponding to the metering scale line 31 on the metering rod 3, which is convenient for medical treatment. People can identify it more intuitively.

When using the installation sleeve 7, after use, remove the installation sleeve 7 and the contact sliding body 2 from the needle body 1 and the needle body 11 in turn for disinfection, and replace the disposable soft pad 24 for the next use.

For those of ordinary skill in the art, according to the teachings of the present invention, without departing from the principle and spirit of the present invention, changes, modifications, substitutions and alterations to the embodiments still fall within the scope of the present invention within the scope of protection.

Claims (10)

1. The injection device applied to vaginal wall water separation comprises a needle tube body, wherein a needle head body is arranged at the front end of the needle tube body, and the injection device is characterized in that a contact sliding body is arranged on the needle head body in a sliding mode, a positioning rod is arranged on the side portion of the contact sliding body, a metering rod parallel to the needle head body is arranged at the end, far away from the contact sliding body , of the positioning rod, and an indicating rod corresponding to the metering rod is arranged on the side portion of the needle tube body.
2. 2. The syringe device for separating water from vaginal wall according to claim 1, wherein the needle tube has a positioning plate at the front end thereof, the positioning plate is located at the rear end of the indicating rod, the measuring rod extends from the apposition rod toward and through the positioning plate, the extending end of the measuring rod has a bottom plate for preventing the measuring rod from sliding off the positioning plate, and the positioning plate has a receiving groove for engaging with the bottom plate.
3. 3. The syringe device for separating water from vaginal wall according to claim 2, wherein the needle tube has a mounting sleeve in interference fit at its front end, and the positioning plate and the indicating rod are both glued and fixed to the mounting sleeve.
4. 4. The syringe device for separating water from vaginal wall according to claim 2, wherein the positioning plate has a slot at the side of the receiving slot , and a stop block is slidably disposed in the slot for stabilizing the bottom plate in the receiving slot.
5. 5. The syringe device for separating water from vaginal wall according to claim 4, wherein the included angle between the co-located rod and the plane of the needle body is 75-85 °, and the metering rod is provided with metering graduation lines.
6. 6. The syringe device for separating water from vaginal wall according to claim 5, wherein the metering graduation mark is graduation units per 0.2cm, and easily visually recognizable scale values are provided at sides of the metering graduation mark per 1 cm.
7. 7. The kinds of injection device for separating water from vaginal wall as claimed in claim 5, wherein the length of needle body is 8-10cm, and the distance between the start metering scale line on the metering rod and the indicating rod tip is equal to the length of the tip of needle body.
8. 8. The injection device for vaginal wall water separation according to claim 1, wherein the contact slider includes a slider mounting tube, a locking groove, a stainless steel tube, a times cushion, and a cushion channel, the inner wall of the slider mounting tube is surrounded with the locking groove, the locking groove is engaged with the stainless steel tube, the stainless steel tube and the locking groove are coated with sealant, the inner diameter of the stainless steel tube is smaller than the inner diameter of the slider mounting tube, the top of the slider mounting tube is provided with the locking groove, the times cushion is engaged with the locking groove through the locking protrusion at the bottom, and the cushion channel is provided in the middle, the inner diameter of the cushion channel is larger than the inner diameter of the stainless steel tube.
9. 9. The syringe device for separating water from vaginal wall according to claim 8, wherein the bottom of the slider mounting tube is threaded with a shock absorbing base for absorbing shock when colliding with the needle tube, the middle of the shock absorbing base is provided with a base channel, and the inner diameter of the base channel is larger than that of the stainless steel tube.
10. 10. The syringe device for vaginal wall water separation as claimed in claim 8, wherein the inside of the mouth of said stainless steel tube is rounded.

Images