RU47684U1 - CONNECTING ELEMENT FOR INTERNAL BODIES POLYMERIC BLOOD REMOVER - Google Patents

Abstract

The utility model relates to medical equipment and can be used in general surgery to connect soft tissues and internal organs. The utility model is a rectangular plastic sheets with geometric dimensions: length from 10 to 150 mm width \ tab from 10 to 100 mm thickness \ tab from 0.05 to 0.5 mm made from a copolymer of vinylpyrrolidone with butyl methacrylate and hemostatic.

Description

The utility model relates to medical devices, namely to products used in general surgery.

It is known to use collagen films as connecting elements for connecting soft tissues and organs. Lutsevich O.E., Petrov V.I. et al. "Use of a complex component collagen film for the prevention of intestinal suture failure". Council, Medicine, 1989, N3, pp. 54-58. However, the use of such elements has a number of disadvantages:

- Collagen films made from animal tissue are capable of exerting unwanted immune responses.

- Collagen films have low mechanical strength and quickly lose it when in the body, which does not always ensure reliable retention of tissues during the regeneration period.

- Collagen films do not interfere, and sometimes contribute to the formation of adhesions between various tissues and organs.

- Collagen films, due to their animal origin, have a short term

storage.

The technical task of the proposed utility model is the ability to create connecting elements for internal organs and tissues from biodegradable synthetic polymers with high biocompatibility, high strength characteristics, providing high reliability of fixation of soft tissues, preventing the formation of adhesions, capable of exerting local hemostatic effect and having the ability to maintain their properties when long-term storage.

The technical result is achieved in that the utility model is made in the form of rectangular plates with geometric dimensions

length mm from 10 to 150 width mm from 10 to 100 thickness mm from 0.05 to 0, 5

made from a copolymer of vinylpyrrolidone with butyl methacrylate PPB-1 and a hemostatic substance in the following ratio of components (% wt.):

The copolymer PPB-1 50.0-90.0

Hemostatic

substance 10.0-50.0

The essence of the utility model lies in the fact that the connecting element is capable of biodegradation within the body, to ensure reliable retention of dissected soft tissues, to provide physical and biological integrity of the joints, to provide anti-adhesion action and to provide local hemostatic effect for a long time.

The essence of the utility model is that the element is made of a biodegradable synthetic polymer with high physicomechanical characteristics and optimal hydrophilicity, which ensures high elasticity of the product, minimal tissue reaction and controlled release of the hemostatic substance from the polymer matrix.

The use of the proposed connecting element provides reliable retention of dissected tissues and organs, a minimal tissue reaction of the surrounding tissues, a disintegrating effect, excluding the occurrence of an adhesion process, physical and biological integrity of the joints, provides local hemostatic effect.

The utility model operates as follows.

After resection and the formation of the ligature suture on the operated organ, the connecting element is placed for 3-5 minutes in a sterile physiological saline solution, it is removed, a section of the required dimensions is cut out, the surface of the element and the ligature suture is dried with a swab, medical glue is applied (MK-7 M, MK- 8 or others), impose an element on the wound surface and lightly press for 30-40 minutes. Several elements can be applied to wounds of complex configuration, laying them according to the "tile" principle, then the wound is sutured in layers.

Utility Model Manufacturing Examples

Example No. 1

From a suspension consisting of 25 ml of ethanol, 9 g of PPB-1 copolymer (90%) and 1 g (10%) aminocaproic acid, a film 50 μm thick is formed by irrigation and connection elements are cut from it 10 mm long and 30 mm wide.

Example No. 2

From a suspension of 20 ml of ethyl alcohol, 7 g of PPB-1 copolymer (70%) and 3 g (10%) of ambene, a film with a thickness of 150 μm is formed by irrigation. from which the connecting elements are cut into a length of 150 mm and a width of 100 mm.

Example No. 3

From a suspension of 20 ml of ethyl alcohol, 5 g (50%) of the PPB-1 copolymer and 5 g (50%) nitropharin, a film 0.5 mm thick is formed by irrigation, from which elements 30 mm long and 10 mm wide are cut.

Claims (1)

A connecting element for internal organs and tissues made of polymeric materials characterized in that it is made in the form of rectangular plates with geometric dimensions length mm from 10 to 150 width mm from 10 to 100 thickness mm from 0.05 to 0.5 made from a copolymer of vinylpyrrolidone with butyl methacrylate PPB-1 and a styptic agent, in the following ratio, wt.%: Vinylpyrrolidone copolymer with butyl methacrylate PPB-1 50-90 Hemostatic agent 10-50